Dissertations / Theses: 'Perception-based Analysis'

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Åhlin, Erik. "Tuberculosis care in Stockholm : An organizational analysis based on staff perception." Thesis, Södertörns högskola, Institutionen för naturvetenskap, miljö och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-21866.

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In an increasingly more interconnected world, the importance of epidemiology in public and international health is rapidly increasing. Tuberculosis is one of the diseases that contributes to this, as its lengthy incubation time and annual high mortality count makes it one of the toughest bacteria for the medical community to combat. Sweden is today a low-endemic region but still suffers a number of cases each year. The majority of these infections have occurred abroad. This qualitative study aims evaluate the Swedish healthcare systems organizational structure in relation to the treating and tracking of tuberculosis. Key personnel from several different units working with diagnosing, treating and tracking of tuberculosis have been interviewed about their perception regarding the organizational structure. The data have been analyzed through H. Mintzbergs theoretical framework regarding organizational structure. The analysis shows that the current system can be described as an Adhocracy. The organization is highly capable of handling adjustment and producing unique and complex outputs in the form of individualized treatment plans and disease tracking efforts. However, the system is highly dependent on internal communication and has great difficulty in up-scaling and expanding. The study shows that the current system would be challenged by a sharp increase in tuberculosis-cases in Stockholm.
I en alltmer sammankopplad värld så får epidemiologin en ökad betydelse i folk- och internationell hälsa. Tuberkulos är en av de sjukdomarna som ligger bakom detta. Dess långa inkubationstid och höga dödstal gör att är en av de svåraste bakteriesjukdomarna att få bukt med. Sverige är idag ett låg-endemiskt land men drabbas ändå av ett par hundra fall per år. Majoriteten av dess infekteras i utland och reser sedan in i Sverige. Denna kvalitativa studie har som mål att utvärdera det svenska hälsovårdssystemet utifrån dess organisatoriska struktur. Datainsamlandet har skett via intervjuer med nyckelpersoner inom tuberkulos-vården kring deras uppfattning om den organisatoriska strukturen. Dessa har varit inblandade i att diagnostisera, behandla och smittospåra tuberkulos patienter. Denna data har sedan analyserat utifrån H.Mintzbergs teorier kring organisationsstruktur. Analysen visar att det aktuella systemet har många likheter med modellen Adhocracy, på så sätt att det är en organisation som kan justeras på ett mycket detaljerat och följsamt sätt i en dynamisk kontext. Den kan också producera unika och komplexa produkter i form av skräddarsydda behandlingsplaner och smittspårningar. Systemet lider dock av ett stort behov av inre kommunikation och möter svårigheter när verksamheten utökas. Slutsatsen blir att det nuvarande systemet skulle ha stora utmaningar med att hantera en markant ökning av tuberkulos fall i Stockholm.

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Kocak, Umut, Palmerius Karljohan Lundin, and Matthew Cooper. "An Error Analysis Model for Adaptive Deformation Simulation." Linköpings universitet, Medie- och Informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-79904.

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With the widespread use of deformation simulations in medical applications, the realism of the force feedback has become an important issue. In order to reach real-time performance with sufficient realism the approach of adaptivity, solution of different parts of the system with different resolutions and refresh rates, has been commonly deployed. The change in accuracy resulting from the use of adaptivity, however, has been been paid scant attention in the deformation simulation field. Presentation of error metrics is rare, while more focus is given to the real-time stability. We propose an abstract pipeline to perform error analysis for different types of deformation techniques which can consider different simulation parameters. A case study is also performed using the pipeline, and the various uses of the error estimation are discussed.

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Khuman, Arjab Singh. "The quantification of perception based uncertainty using R-fuzzy sets and grey analysis." Thesis, De Montfort University, 2016. http://hdl.handle.net/2086/14225.

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The nature of uncertainty cannot be generically defined as it is domain and context specific. With that being the case, there have been several proposed models, all of which have their own associated benefits and shortcomings. From these models, it was decided that an R-fuzzy approach would provide for the most ideal foundation from which to enhance and expand upon. An R-fuzzy set can be seen as a relatively new model, one which itself is an extension to fuzzy set theory. It makes use of a lower and upper approximation bounding from rough set theory, which allows for the membership function of an R-fuzzy set to be that of a rough set. An R-fuzzy approach provides the means for one to encapsulate uncertain fuzzy membership values, based on a given abstract concept. If using the voting method, any fuzzy membership value contained within the lower approximation can be treated as an absolute truth. The fuzzy membership values which are contained within the upper approximation, may be the result of a singleton, or the vast majority, but absolutely not all. This thesis has brought about the creation of a significance measure, based on a variation of Bayes' theorem. One which enables the quantification of any contained fuzzy membership value within an R-fuzzy set. Such is the pairing of the significance measure and an R-fuzzy set, an intermediary bridge linking to that of a generalised type-2 fuzzy set can be achieved. Simply by inferencing from the returned degrees of significance, one is able to ascertain the true significance of any uncertain fuzzy membership value, relative to other encapsulated uncertain values. As an extension to this enhancement, the thesis has also brought about the novel introduction of grey analysis. By utilising the absolute degree of grey incidence, it provides one with the means to measure and quantify the metric spaces between sequences, generated based on the returned degrees of significance for any given R-fuzzy set. As it will be shown, this framework is ideally suited to domains where perceptions are being modelled, which may also contain several varying clusters of cohorts based on any number of correlations. These clusters can then be compared and contrasted to allow for a more detailed understanding of the abstractions being modelled.

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ANDRETTI, FABRICIO VIANA. "ANALYSIS OF SERVICES DELIVERY BASED ON A MODEL OF CORRELATION BETWEEN CLIENT PERCEPTION AND PROCESS INDICATORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9235@1.

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Este trabalho apresenta o estudo de um caso de entrega de serviço em uma empresa do setor de telecomunicações propondo um modelo de avaliação e diagnóstico do processo. Sendo qualidade do serviço o principal fator da sua estratégia de diferenciação, a empresa busca a melhoria do serviço usando pesquisas de satisfação de seus clientes para identificar suas necessidades e expectativas. Mesmo buscando focar nos fatores críticos de sucesso, a empresa tem tido dificuldade em correlacionar a percepção dos clientes sobre o serviço prestado e as medições feitas internamente visando a redução de custos e melhorias no processo. Tal temática faz florescer numerosas questões sobre a forma como as empresas atualmente gerenciam a qualidade de seus serviços objetivando a melhoria contínua e sustentada como diferencial competitivo na visão cliente. Dada a complexidade do tema, este trabalho concentra-se no aspecto particular da expectativa do cliente sobre a entrega do serviço no prazo e no gerenciamento do ciclo do pedido para entrega eficiente, eficaz e com baixo custo para a empresa. O principal objetivo é a identificação dos gaps entre a percepção do cliente e a visão interna de desempenho cuja redução ou eliminação aumente o valor percebido pelo mercado. Assim, a pesquisa propõe e testa um modelo para diagnóstico do processo de entrega de serviços e, também, formas de manter o processo alinhado com as expectativas dos clientes e as estratégias da organização. Focalizando a entrega de serviços, o trabalho traz uma pequena contribuição para colocá-la no seu merecido lugar na Logística.
This thesis presents a case study of a service delivery system in a telecommunication company and proposes a model for process evaluation and diagnosis. Because service quality is the main factor of its differentiation strategy, the company seeks service improvements by employing satisfaction surveys for identification of its clients´ needs and expectations. Despite its focus on critical factors of success, the company has experienced difficulties in correlating its clients´ perceptions on the service delivered and the internal evaluations aiming cost reduction and process enhancements. This theme brings about numerous issues on the way the enterprises currently manage their service quality in search for continuous, and sustained, improvement as a competitive advantage under the customer´s vision. Given the complexity of the theme, this research concentrates in the particular aspect of customer´s expectations on the service timely delivery, as well as in the management of the order cycle for the company to achieve an efficient, effective and low cost delivery. The main objective of this research is the identification of the gaps between the customer´s perception and the company´s internal view of its performance whose reduction, or elimination, can enhance the market perceived value. Hence, this research proposes and tests a model for diagnosis of the service delivery process, and also, ways for maintaining the alignment of the process with the customer´s expectations, and the organization´s strategy. Focusing on service delivery, this research represents a modest contribution for placing this subject on its deserved place in Logistics.

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Moody, Bailey M. "A Comparative Analysis of Digital and Paper Restaurant Menus Based on Customer Perception and Nutritional Labeling." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc955051/.

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The restaurant industry is a highly customer-driven field. Therefore, it is imperative that restaurateurs consider customer expectations with regard to restaurant menus. The purpose of this experimental study is to examine the effects of menu format (i.e., paper or digital) and amount of nutritional information (i.e., extensive, brief, or none) on customer perceptions of the effectiveness, perceived ease of use, and information quality of the menu. Furthermore, this research intends to test the effect of these three menu attributes on the outcomes of value and satisfaction in order to assess the competitive advantage of one format over the other. The Cognitive Appraisal and Information Processing Theories provide structure to the proposed conceptual framework and give credence to the findings. This study also fills gaps in the present research by not only ameliorating weaknesses of extant studies, but also by examining several different aspects of restaurant menus simultaneously within a single study.

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Walters, Thomas C. "Auditory-based processing of communication sounds." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/240577.

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This thesis examines the possible benefits of adapting a biologically-inspired model of human auditory processing as part of a machine-hearing system. Features were generated by an auditory model, and used as input to machine learning systems to determine the content of the sound. Features were generated using the auditory image model (AIM) and were used for speech recognition and audio search. AIM comprises processing to simulate the human cochlea, and a 'strobed temporal integration' process which generates a stabilised auditory image (SAI) from the input sound. The communication sounds which are produced by humans, other animals, and many musical instruments take the form of a pulse-resonance signal: pulses excite resonances in the body, and the resonance following each pulse contains information both about the type of object producing the sound and its size. In the case of humans, vocal tract length (VTL) determines the size properties of the resonance. In the speech recognition experiments, an auditory filterbank was combined with a Gaussian fitting procedure to produce features which are invariant to changes in speaker VTL. These features were compared against standard mel-frequency cepstral coefficients (MFCCs) in a size-invariant syllable recognition task. The VTL-invariant representation was found to produce better results than MFCCs when the system was trained on syllables from simulated talkers of one range of VTLs and tested on those from simulated talkers with a different range of VTLs. The image stabilisation process of strobed temporal integration was analysed. Based on the properties of the auditory filterbank being used, theoretical constraints were placed on the properties of the dynamic thresholding function used to perform strobe detection. These constraints were used to specify a simple, yet robust, strobe detection algorithm. The syllable recognition system described above was then extended to produce features from profiles of the SAI and tested with the same syllable database as before. For clean speech, performance of the features was comparable to that of those generated from the filterbank output. However when pink noise was added to the stimuli, performance dropped more slowly as a function of signal-to-noise ratio when using the SAI-based AIM features, than when using either the filterbank-based features or the MFCCs, demonstrating the noise-robustness properties of the SAI representation. The properties of the auditory filterbank in AIM were also analysed. Three models of the cochlea were considered: the static gammatone filterbank, dynamic compressive gammachirp (dcGC) and the pole-zero filter cascade (PZFC). The dcGC and gammatone are standard filterbank models, whereas the PZFC is a filter cascade, which more accurately models signal propagation in the cochlea. However, while the architecture of the filterbanks is different, they have all been successfully fitted to psychophysical masking data from humans. The abilities of the filterbanks to measure pitch strength were assessed, using stimuli which evoke a weak pitch percept in humans, in order to ascertain whether there is any benefit in the use of the more computationally efficient PZFC.Finally, a complete sound effects search system using auditory features was constructed in collaboration with Google research. Features were computed from the SAI by sampling the SAI space with boxes of different scales. Vector quantization (VQ) was used to convert this multi-scale representation to a sparse code. The 'passive-aggressive model for image retrieval' (PAMIR) was used to learn the relationships between dictionary words and these auditory codewords. These auditory sparse codes were compared against sparse codes generated from MFCCs, and the best performance was found when using the auditory features.

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Dorff, Todd Allen. "A comparative analysis of three theoretically-based research strategies for assessing public perception of an organization : a masters thesis." Scholarly Commons, 1993. https://scholarlycommons.pacific.edu/uop_etds/2243.

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The present study applies three distinct theoretically grounded research methodologies to the research phase of a public relations campaign. The researcher examines the distinctions of each method, the strengths and weaknesses of the data generated, and the implications of mass communication theory as it relates to public relations campaigns. Drawing from DeFleur and Ball-Rokeach's (1989) overview of three theoretical approaches to mass mediated persuasion, the study implements research methodologies from the psychodynamic, the sociocultural, and the meaning construction paradigms. The study examines how the assumptions of each approach might influence a practitioner in each stage of campaign construction. The author concludes that the often implicit theoretical assumptions which guide public relations practitioners have a significant impact on every phase of a public relations campaign.

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Smith, Gabriel Charles. "Identifying prevention methods to reduce carpal tunnel syndrome incidents : based on analysis of employee perception and by utilizing the strain index /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1324372471&sid=25&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Mendoza, Jose. "Towards the formation and measurement of ethnic price perception." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/11819.

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This research is the outcome of a preeminent interest in the topic of price perception. Pointedly, the perception of prices is part of the purchasing process, the same willingness to pay and the actual purchase behaviour, and is indubitably a perceptual construct. As such, perception is problematic to measure as it does not relate to an observable behaviour. On the other hand, pricing is regarded as an important variable in the marketing mix. This research contributes to theory by augmenting the current knowledge on the perception of prices including the methods used in the measurement of such perception. Moreover, this research addresses a gap in the understanding of how diverse ethnic groups perceive prices. The relationship set in this study between ethnicity and price perception is thought-provoking as it contributes to the current discussion around diversity in the marketplace. For example, the literature shows advances in areas such as multicultural and ethnic marketing and this research makes a significant contribution to these areas from price perception. Accordingly, this study involved a systematic review of the literature and presented a framework that suggested that the formation of price perception is affected by external factors such as culture and ethnicity. Furthermore, a qualitative study examined the formation of price perception around ethnic groups. Next, this research used a quantitative study that sought differences in price perception among ethnic groups. Thus, the quantitative study used a price perception scale (Lichtenstein et al., 1993) and a choice-based conjoint analysis. Also, the study adopted structural equation modelling (SEM) to measure differences among scales and the multinomial logit model to analyse the choice-based conjoint analysis. The findings of both the quantitative and the qualitative studies link to the systematic review and support the framework for the formation and measurement of price perception originally proposed.

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Borodinova, Baiba. "Inner yard building occupant’s perception versus the computer simulated metrics of daylight : Field study and simulation-based analysis of inner yard building." Thesis, KTH, Ljusdesign, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233840.

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This Master thesis was aimed at investigating common daylight evaluation methods related to Swedish building codes versus human perception of daylight in residential spaces. Field (interview) and simulation-based study were conducted in one of the typical 20thcentury residential, closed courtyard buildings in Stockholm. 12 residents of Kv. Väktaren 16 were interviewed and simulation models were prepared for the apartments occupied by the participants. Resident perception of light was mostly contrary to daylight assessing values and methods of daylight factor – DF in a point (CIE overcast sky) and alternative method of window to floor area ratio – AF that are stated in Swedish standard (Boverkets byggregler BFS 2016:6). Attractive and interesting view, access to direct sunlight and visual comfort played important role in overall occupant satisfaction level, this suggests that daylight metrics should include perception-based factors, which positively impact our health and well-being.

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Pilz, Sonnby Anna, Sara Samie, and Pauline Knutsson. "Investigating the perception of distance examinations methods : Evaluation of distance examination methods and an analysis of the financial perspectives based on quantitative data." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281768.

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The purpose of this study is to investigate how the recent distance examinations at KTH were perceived by its users. The prevailing circumstances in the world as a result of COVID-19 have urgently created a need for both teaching and examination at a distance. By conducting qualitative interviews with both teachers and students from different academic backgrounds combined with data collection via surveys, previous studies and statistics the aim has been to investigate how distance examinations are perceived by all involved parties. The study shows both students and teachers have experienced stress due to the change that distance examinations entailed. Clarity, communication and preparation are keywords for conducting distance examinations of a successful nature. In addition to the methods of conducting distance examination, the financial impact of the examination type has been investigated. Findings reveal that distance examination is the primary option from a financial perspective, but also from an overall point of view if conducted in safe and fair manners.
Syftet med denna studie är att undersöka hur nyligen utförda distansexaminationer på KTH har uppfattats av användarna. De rådande omständigheterna i världen som skett till följd av COVID-19 har akut skapat ett stort behov av både undervisning och examination på distans. Genom att utföra kvalitativa intervjuer med både lärare och studenter av olika akademiska bakgrunder kombinerat med datainsamling via enkäter, tidigare studier och statistik har målet varit att undersöka hur distansexaminationerna uppfattats av alla inblandade. Något som framgått till följ av studien är att många inblandade, både studenter och lärare har upplevt en betydlig stress på grund av omställningen som distansexaminationer inneburit. Tydlighet, kommunikation och förberedelse är nyckelord för att utföra distansexaminationer av lyckad karaktär. Utöver att undersöka de metoder som används vid examination på distans har även den ekonomiska aspekten av examinationsformen undersökts. Det framgår tydligt att examination på distans är det bästa alternativet, främst ur ett ekonomiskt perspektiv, men även från ett generellt perspektiv om examinationen utförs på ett säkert och rättvist sätt.

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Stanton, Caroline Mary. "Perception of scale and scale effects in the landscape, with specific reference to wind turbines in Scotland." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/22941.

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Perception of scale is important to our activity within a space and to our experience of a landscape. This presents a problem if people cannot predict or convey the scale effects of large structures proposed in a landscape, as has been the case for recent wind turbine proposals in Scotland. To address this problem, this research explored how people perceive scale and scale effects in a landscape. It took wind turbines as an example structure and analysed how different scales of windfarm create different scale effects in different landscapes, as well as how to best assess and communicate these effects. The research applied three methods to address the research questions: Landscape and Visual Impact Assessment (LVIA), which is a standard, structured process applied by professional landscape architects; experiential landscape assessment, which included semi-structured interviews with local people in addition to site assessment; and public attitude and preference study, which included Adaptive Choice-Based Conjoint analysis (ACBC). These different methods allowed the research questions to be explored in different ways, while overlapping in some aspects and providing triangulation. The research findings revealed that our perception of scale and scale effects in a landscape is influenced by numerous attributes and depends on how these are experienced together. Building upon the theoretical background, an important difference between visual scale and spatial scale was highlighted, as well as alternative ways in which scale references are made. Throughout the research, the need for clear communication was emphasised and the findings included identifying the specific words that people use to describe scale effects in the most discriminating way. This research supported other studies in finding that consultation with local people (professionals and the public) was vital to understand in sufficient depth how a landscape was perceived, experienced and valued. In addition, the innovative development of Conjoint Analysis demonstrated how this method can reveal how people judge the relative importance of different attributes that influence landscape and visual effects and, by doing so, offer new possibilities as a tool in landscape research. Building upon the general findings concerning scale, specific findings regarding the scale effects of windfarms included: greater influence of the proximity of a windfarm than size or numbers of wind turbines; greater importance for being in private and/or fixed locations that offer a sense of refuge compared to public locations and/or when moving; the importance of collective effects perceived and experienced by a community; the importance of perceived spatial separation between a viewer and a windfarm (affecting sensitivity to scale effects within open settings); and differences in how people judge the importance of horizontal scale effects compared to vertical scale effects. The research findings contribute to the knowledge and understanding of people’s perception of scale and scale effects in a landscape and they counter some common assumptions and current practice in landscape architecture. They can be applied in practice and policy to help assess scale effects, convey more clearly to people the type of scale effects and how these will affect them, and minimise the adverse scale effects of windfarms through siting and design. The thesis also identifies how to build upon these findings in the future, including recommendations for additional research, new approaches to assessment (including the use of prompt lists) and thresholds for acceptability of scale effects.

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Banks, Jasmine. "Reliability analysis of transform-based stereo matching techniques, and a new matching constraint." Thesis, Queensland University of Technology, 2000. https://eprints.qut.edu.au/36106/6/Jasmine%20Banks_Digitised_Thesis.pdf.

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Stereo vision is a method of depth perception, in which depth information is inferred from two (or more) images of a scene, taken from different perspectives. Practical applications for stereo vision include aerial photogrammetry, autonomous vehicle guidance, robotics and industrial automation. The initial motivation behind this work was to produce a stereo vision sensor for mining automation applications. For such applications, the input stereo images would consist of close range scenes of rocks. A fundamental problem faced by matching algorithms is the matching or correspondence problem. This problem involves locating corresponding points or features in two images. For this application, speed, reliability, and the ability to produce a dense depth map are of foremost importance. This work implemented a number of areabased matching algorithms to assess their suitability for this application. Area-based techniques were investigated because of their potential to yield dense depth maps, their amenability to fast hardware implementation, and their suitability to textured scenes such as rocks. In addition, two non-parametric transforms, the rank and census, were also compared. Both the rank and the census transforms were found to result in improved reliability of matching in the presence of radiometric distortion - significant since radiometric distortion is a problem which commonly arises in practice. In addition, they have low computational complexity, making them amenable to fast hardware implementation. Therefore, it was decided that matching algorithms using these transforms would be the subject of the remainder of the thesis. An analytic expression for the process of matching using the rank transform was derived from first principles. This work resulted in a number of important contributions. Firstly, the derivation process resulted in one constraint which must be satisfied for a correct match. This was termed the rank constraint. The theoretical derivation of this constraint is in contrast to the existing matching constraints which have little theoretical basis. Experimental work with actual and contrived stereo pairs has shown that the new constraint is capable of resolving ambiguous matches, thereby improving match reliability. Secondly, a novel matching algorithm incorporating the rank constraint has been proposed. This algorithm was tested using a number of stereo pairs. In all cases, the modified algorithm consistently resulted in an increased proportion of correct matches. Finally, the rank constraint was used to devise a new method for identifying regions of an image where the rank transform, and hence matching, are more susceptible to noise. The rank constraint was also incorporated into a new hybrid matching algorithm, where it was combined a number of other ideas. These included the use of an image pyramid for match prediction, and a method of edge localisation to improve match accuracy in the vicinity of edges. Experimental results obtained from the new algorithm showed that the algorithm is able to remove a large proportion of invalid matches, and improve match accuracy.

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Le, Boulba Pauline. "les bords de l’œuvre : réceptions performées & critiques affectées en danse." Thesis, Paris 8, 2019. http://www.theses.fr/2019PA080011.

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Cette recherche-création s’est déployée autour d’une réflexion sur la réception en danse et sur les modes de partage de celle-ci. Prenant à rebrousse-poil une histoire de la critique de danse qui juge et évalue, j’ai tenté de privilégier des démarches qui viennent perturber, troubler et brouiller les frontières entre création et réception. La première partie de ce travail consiste à trois analyses d’œuvres chorégraphiques : Une hypothèse de réinterprétation de Rita Quaglia (2009), histoire(s) d’Olga de Soto (2004) et enfin Admiring la Argentina de Kazuo Ôno (1977). Ces trois pièces révèlent trois manières de regarder des œuvres, trois manières de parler des/aux œuvres, trois manières de répondre à une danse en dansant. Les trois œuvres analysées en première partie se distinguent par l’importance qu’elles accordent à la subjectivité comme vectrice de savoirs (perceptifs et cognitifs). Ainsi, à la « réception performée » s’ajoute le terme de « critique affectée » pour compléter ma réflexion. Celle-ci désigne autant le caractère subjectif au sein des objets étudiés, que ma manière d’être à mon tour touchée et prise par les objets et personnes que j’ai observé·e·s ces dernières années. La critique affectée concerne également les parcours de deux critiques de danse — Laurence Louppe (1938-2012) et Jill Johnston (1929-2010) — qui constituent le centre d’attention de ma deuxième partie. À travers leurs pratiques critiques distinctes, il m’importe de questionner un héritage dont je souhaite me défaire ou au contraire que je désire faire mien. Cette recherche a été une progressive mise en abyme de mon regard de spectatrice et de différents modes de travail en tant qu’artiste-chercheure. Elle rend compte d’une multiplicité de formats — journal de bord, fragments critiques, analyses d’œuvres et analyses de pratiques, matériaux de performance — comme autant de points de vue sur une œuvre. À ce travail écrit, s’ajoute un temps performatif lors de la soutenance
This practice-based research developed from questioning reception of dance and manners of sharing this experience. In venturing countercurrent to a history of dance criticism which bears judgment and makes assessments, I attempted to favor initiatives which disrupt, disturb and blur the borderlines that settle between creativity and reception. The first chapter of this research focuses on the analysis of three choreographic works: Une hypothèse de réinterprétation by Rita Quaglia (2009), histoire(s) by Olga de Soto (2004) and Admiring La Argentina by Kazuo Ohno (1977). Each of these pieces offer three different perceptions of artworks, three ways of speaking about/with artworks, three ways of answering to dance by dancing. The three works analyzed in the first chapter are characterized by the importance they grant to subjectivity as a vector of (perceptive and cognitive) knowledge. Thus, introducing the term “affected critique” to the term “performed reception” implemented the scope of my analysis. This term elects both the subjective dimension within these objects and my personal relationship to the works and people which have moved and “possessed” me over the course of my observations these past years. “Affected criticism” also arises from research on the careers of two dance critics – Laurence Louppe (1938-2012) and Jill Johnston (1929-2010) – which form the core of my second chapter. Through the particularities of their critical practices, I cared to question a heritage from which I wished either to differentiate myself or on the contrary to adopt and develop as my own. This research consequently developed as a progressive mise en abyme of my personal gaze as spectator and of the different ways of working as an artist and researcher. This dissertation therefore tries to embrace and account for the multiple shapes – journal entries, fragments of critical writing, analysis of artworks and artistic practices, performance material – that form as many standpoints from which to observe a body of work. A performative moment will prolong the written work of this research during the submission

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Rojas, Castro Dalia Marcela. "The RHIZOME architecture : a hybrid neurobehavioral control architecture for autonomous vision-based indoor robot navigation." Thesis, La Rochelle, 2017. http://www.theses.fr/2017LAROS001/document.

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Les travaux décrits dans cette thèse apportent une contribution au problème de la navigation autonome de robots mobiles dans un contexte de vision indoor. Il s’agit de chercher à concilier les avantages des différents paradigmes d’architecture de contrôle et des stratégies de navigation. Ainsi, nous proposons l’architecture RHIZOME (Robotic Hybrid Indoor-Zone Operational ModulE) : une architecture unique de contrôle robotique mettant en synergie ces différentes approches en s’appuyant sur un système neuronal. Les interactions du robot avec son environnement ainsi que les multiples connexions neuronales permettent à l’ensemble du système de s’adapter aux conditions de navigation. L’architecture RHIZOME proposée combine les avantages des approches comportementales (e.g. rapidité de réaction face à des problèmes imprévus dans un contexte d’environnement dynamique), et ceux des approches délibératives qui tirent profit d’une connaissance a priori de l’environnement. Cependant, cette connaissance est uniquement exploitée pour corroborer les informations perçues visuellement avec celles embarquées. Elle est représentée par une séquence de symboles artificiels de navigation guidant le robot vers sa destination finale. Cette séquence est présentée au robot soit sous la forme d’une liste de paramètres, soit sous la forme d’un plan. Dans ce dernier cas, le robot doit extraire lui-même la séquence de symboles à suivre grâce à une chaine de traitements d’images. Ainsi, afin de prendre la bonne décision lors de sa navigation, le robot traite l’ensemble de l’information perçue, la compare en temps réel avec l’information a priori apportée ou extraite, et réagit en conséquence. Lorsque certains symboles de navigation ne sont plus présents dans l’environnement de navigation, l’architecture RHIZOME construit de nouveaux lieux de référence à partir des panoramas extraits de ces lieux. Ainsi, le robot, lors de phases exploratoires, peut s’appuyer sur ces nouvelles informations pour atteindre sa destination finale, et surmonter des situations imprévues. Nous avons mis en place notre architecture sur le robot humanoïde NAO. Les résultats expérimentaux obtenus lors d’une navigation indoor, dans des scenarios à la fois déterministes et stochastiques, montrent la faisabilité et la robustesse de cette approche unifiée
The work described in this dissertation is a contribution to the problem of autonomous indoor vision-based mobile robot navigation, which is still a vast ongoing research topic. It addresses it by trying to conciliate all differences found among the state-of-the-art control architecture paradigms and navigation strategies. Hence, the author proposes the RHIZOME architecture (Robotic Hybrid Indoor-Zone Operational ModulE) : a unique robotic control architecture capable of creating a synergy of different approaches by merging them into a neural system. The interactions of the robot with its environment and the multiple neural connections allow the whole system to adapt to navigation conditions. The RHIZOME architecture preserves all the advantages of behavior-based architectures such as rapid responses to unforeseen problems in dynamic environments while combining it with the a priori knowledge of the world used indeliberative architectures. However, this knowledge is used to only corroborate the dynamic visual perception information and embedded knowledge, instead of directly controlling the actions of the robot as most hybrid architectures do. The information is represented by a sequence of artificial navigation signs leading to the final destination that are expected to be found in the navigation path. Such sequence is provided to the robot either by means of a program command or by enabling it to extract itself the sequence from a floor plan. This latter implies the execution of a floor plan analysis process. Consequently, in order to take the right decision during navigation, the robot processes both set of information, compares them in real time and reacts accordingly. When navigation signs are not present in the navigation environment as expected, the RHIZOME architecture builds new reference places from landmark constellations, which are extracted from these places and learns them. Thus, during navigation, the robot can use this new information to achieve its final destination by overcoming unforeseen situations.The overall architecture has been implemented on the NAO humanoid robot. Real-time experimental results during indoor navigation under both, deterministic and stochastic scenarios show the feasibility and robustness of the proposed unified approach

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Martorell, Domínguez Agustín. "Modelling tonal context dynamics by temporal multi-scale analysis." Doctoral thesis, Universitat Pompeu Fabra, 2013. http://hdl.handle.net/10803/123810.

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This work explores the multidimensional, ambiguous and temporal characteristics of tonality. The approach relies on interfacing pitch-spaces with time vs. time-scale descriptions. In this combined representation, the spatial and temporal hierarchies of tonality are evidenced simultaneously and in relation to each other. A visual exploration method is proposed for the analysis of tonal context in music works, using a simple model of tonal induction. The method is extended for the analysis of music based on tonal systems beyond the major-minor paradigm. Two perceptual studies are approached from this descriptive framework. The first study evidences the impact of time-scale in a simple mode of tonal induction, and analyses the mathematical artefacts introduced by evaluations in scaled spaces. In the second study, a model of contextual instability is proposed and discussed in relation to the modelling of tonal tension. The analysis and representation methods are then generalised, through a set-class theoretical domain.
Esta tesis analiza la naturaleza ambigua, multidimensional y temporal de la tonalidad. El método propuesto parte de la conexión entre espacios tonales y descripciones en tiempo y escala temporal. Esta representación conjunta pone de manifiesto la relación entre las jerarquías espaciales y temporales de la tonalidad. Utilizando un modelo simple de inducción tonal, se propone un método de exploración visual del contexto tonal en obras musicales. Dos estudios perceptuales son abordados desde el entorno descriptivo propuesto. En el primer estudio, se pone en evidencia el impacto de la escala temporal como parámetro de un modelo simple de inducción tonal, y se analizan los artificios matemáticos introducidos por evaluaciones en espacios escalados dimensionalmente. En el segundo estudio se propone un modelo de inestabilidad contextual, y se analiza en relación al modelado de la tensión tonal. El método de análisis se generaliza, a través de una categorización contextual en set-classes.

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Liu, Yulin. "Urban transit quality of service : user perception and behaviour." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/61517/1/Yulin_Liu_Thesis.pdf.

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Despite its potential multiple contributions to sustainable policy objectives, urban transit is generally not widely used by the public in terms of its market share compared to that of automobiles, particularly in affluent societies with low-density urban forms like Australia. Transit service providers need to attract more people to transit by improving transit quality of service. The key to cost-effective transit service improvements lies in accurate evaluation of policy proposals by taking into account their impacts on transit users. If transit providers knew what is more or less important to their customers, they could focus their efforts on optimising customer-oriented service. Policy interventions could also be specified to influence transit users’ travel decisions, with targets of customer satisfaction and broader community welfare. This significance motivates the research into the relationship between urban transit quality of service and its user perception as well as behaviour. This research focused on two dimensions of transit user’s travel behaviour: route choice and access arrival time choice. The study area chosen was a busy urban transit corridor linking Brisbane central business district (CBD) and the St. Lucia campus of The University of Queensland (UQ). This multi-system corridor provided a ‘natural experiment’ for transit users between the CBD and UQ, as they can choose between busway 109 (with grade-separate exclusive right-of-way), ordinary on-street bus 412, and linear fast ferry CityCat on the Brisbane River. The population of interest was set as the attendees to UQ, who travelled from the CBD or from a suburb via the CBD. Two waves of internet-based self-completion questionnaire surveys were conducted to collect data on sampled passengers’ perception of transit service quality and behaviour of using public transit in the study area. The first wave survey is to collect behaviour and attitude data on respondents’ daily transit usage and their direct rating of importance on factors of route-level transit quality of service. A series of statistical analyses is conducted to examine the relationships between transit users’ travel and personal characteristics and their transit usage characteristics. A factor-cluster segmentation procedure is applied to respodents’ importance ratings on service quality variables regarding transit route preference to explore users’ various perspectives to transit quality of service. Based on the perceptions of service quality collected from the second wave survey, a series of quality criteria of the transit routes under study was quantitatively measured, particularly, the travel time reliability in terms of schedule adherence. It was proved that mixed traffic conditions and peak-period effects can affect transit service reliability. Multinomial logit models of transit user’s route choice were estimated using route-level service quality perceptions collected in the second wave survey. Relative importance of service quality factors were derived from choice model’s significant parameter estimates, such as access and egress times, seat availability, and busway system. Interpretations of the parameter estimates were conducted, particularly the equivalent in-vehicle time of access and egress times, and busway in-vehicle time. Market segmentation by trip origin was applied to investigate the difference in magnitude between the parameter estimates of access and egress times. The significant costs of transfer in transit trips were highlighted. These importance ratios were applied back to quality perceptions collected as RP data to compare the satisfaction levels between the service attributes and to generate an action relevance matrix to prioritise attributes for quality improvement. An empirical study on the relationship between average passenger waiting time and transit service characteristics was performed using the service quality perceived. Passenger arrivals for services with long headways (over 15 minutes) were found to be obviously coordinated with scheduled departure times of transit vehicles in order to reduce waiting time. This drove further investigations and modelling innovations in passenger’ access arrival time choice and its relationships with transit service characteristics and average passenger waiting time. Specifically, original contributions were made in formulation of expected waiting time, analysis of the risk-aversion attitude to missing desired service run in the passengers’ access time arrivals’ choice, and extensions of the utility function specification for modelling passenger access arrival distribution, by using complicated expected utility forms and non-linear probability weighting to explicitly accommodate the risk of missing an intended service and passenger’s risk-aversion attitude. Discussions on this research’s contributions to knowledge, its limitations, and recommendations for future research are provided at the concluding section of this thesis.

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Mahalingam, Vijay Venkatesh. "WAVELET AND SINE BASED ANALYSIS OF PRINT QUALITY EVALUATIONS." UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/244.

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Recent advances in imaging technology have resulted in a proliferation of images across different media. Before it reaches the end user, these signals undergo several transformations, which may introduce defects/artifacts that affect the perceived image quality. In order to design and evaluate these imaging systems, perceived image quality must be measured. This work focuses on analysis of print image defects and characterization of printer artifacts such as banding and graininess by using a human visual system (HVS) based framework. Specifically the work addresses the prediction of visibility of print defects (banding and graininess) by representing the print defects in terms of the orthogonal wavelet and sinusoidal basis functions and combining the detection probabilities of each basis functions to predict the response of the human visual system (HVS). The detection probabilities for basis function components and the simulated print defects are obtained from separate subjective tests. The prediction performance from both the wavelet based and sine based approaches is compared with the subjective testing results .The wavelet based prediction performs better than the sinusoidal based approach and can be a useful technique in developing measures and methods for print quality evaluations based on HVS.

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Vohra, Neeti. "Shape based supervised classification application to epilepsy /." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE1001191.

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Ye, Ming. "Robust visual motion analysis : piecewise-smooth optical flow and motion-based detection and tracking /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/6077.

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Liu, Xin. "Lip motion tracking and analysis with application to lip-password based speaker verification." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1538.

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Dwyer, Eleanor A. "Price, Perceived Value and Customer Satisfaction: A Text-Based Econometric Analysis of Yelp! Reviews." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/scripps_theses/715.

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We examine the antecedents of customer satisfaction in the restaurant sector, paying particular attention to perceived value and price level. Using Latent Dirichlet Allocation, we extract latent topics from the text of Yelp! reviews, then analyze the relationship between these topics and satisfaction, measured as the difference between review rating and user average review rating.

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Chaurasia, Gaurav. "Algorithmes et analyses perceptuelles pour la navigation interactive basée image." Phd thesis, Université Nice Sophia Antipolis, 2014. http://tel.archives-ouvertes.fr/tel-00976621.

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Nous présentons une approche de rendu à base d'images (IBR) qui permet, à partir de photos, de naviguer librement et générer des points de vue quelconques dans des scènes urbaines. Les approches précédentes dépendent des modèles 3D et donnent lieu à des rendus de qualité réduite avec beaucoup d'artefacts. Dans cette thèse, nous proposons une approximation basée sur l'image pour compenser le manque de précision de la géométrie 3D. Nous utilisons un warp d'image guidé par des cartes de profondeur quasi-denses qui donnent lieu à beaucoup moins d'artefacts. En se basant sur cette approche, nous avons développé une méthode entièrement automatique permettant de traiter les scènes complexes. Nous sur-segmentons les images d'entrées en superpixels qui limitent les occlusions sur les bords des objets. Nous introduisons la synthèse de profondeur pour créer une approximation de cette profondeur mal reconstruite dans certaines régions et calculons les warps sur les superpixels pour synthétiser le résultat final. Nous comparons nos résultats à de nombreuses approches récentes. Nous avons analysé les artefacts de l'IBR d'un point de vue perceptif en comparant les artefacts générés par le mélange de plusieurs images avec ceux des transitions temporelles brusques et avons élaboré une méthodologie pour la sélection d'un compromis idéal entre les deux. Nous avons également analysé les distorsions perspectives et avons développé un modèle quantitatif qui permet de prédire les distorsions en fonction des paramètres de capture et de visualisation. Comme application, nous avons mis en œuvre un système de réalité virtuelle qui utilise l'IBR à la place de l'infographie traditionnelle.

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Boone, George E. "Emotion, community development, and the physical environment: An experimental investigation of measurements." UKnowledge, 2013. http://uknowledge.uky.edu/cld_etds/10.

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A wide range of research fields have studied how emotions and behavior are affected by the physical environment. This gestalt theorist approach of experimental research as well seeks to measure emotion (using the valence-arousal scale) and micro-scale community development interactions when weighted physical environment factors are adjusted. Community development (CD) interactions at the micro-scale have received but slight attention from scholars in the CD research field and this study aims partially to investigate developing objective measures from social observations. CD interactions from recordings along with self-reported emotion through surveys in four quasi-experimental groups (where the environments were constructed based on peer-reviewed literature to cause emotional reactions) and one control group made up the data collected for this experiment. While the results of this experiment displayed apparent convincing quantitative differences in both CD interactions and emotion when the physical environment was manipulated, the results of a one-way ANOVA indicated no statistical significance to either dependent variable. The conclusions suggest limiting the physical factors of the environment to produce more precise changes as a result of the manipulated quasi environments.

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Hicks, Vernae Elaine. "MINORITIES' PERCEPTIONS OF CHILD PROTECTIVE SERVICES." CSUSB ScholarWorks, 2016. https://scholarworks.lib.csusb.edu/etd/347.

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The study examined minority persons’ views and experiences with Child Protective Services (CPS) in the community. This study used a qualitative design with face‑to‑face interviews with 12 participants in the community. This study used the “Post‑Positivist” data analysis, which is qualitative in evaluation and explained each participant’s subjective reality. The study found that most participants were satisfied with the results and were dissatisfied with the process in and of itself. Overall the study found that most participants felt that there was some sort of a disconnect with social workers in reference to cultural competency. Miscommunication between the social workers at agencies and parents could have played a significant role in why participants had these experiences. However, most participants felt that the agency helped with services that ultimately left the participants feeling a sense of awareness about the purpose of the agency. The study suggests that implementing a program that would allow the community to be informed of all the programs that Child Protective Services can provide be critical in aiding and empowering the members of the community and in helping reduce CPS caseloads significantly.

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Selkregg, Sheila Ann. "The Decision and Rationale which Led to Construction on High-risk Land after the 1964 Alaska Earthquake: Analysis of Risk-based Cultural Dissociation." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/1302.

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Many lives and much property are lost in disasters when individuals and communities choose to ignore information which could mitigate the potential disaster. This case study examines community and individual decision processes and rationale which led to construction of a high-occupancy high-rise courthouse on land designated as high risk after the 1964 Alaska earthquake. The study reviews policy and decision making, psychology, and risk management literature to explore the psychological mechanisms and processes of hazard mitigation decisions. It questions why individuals and communities choose not to mitigate when they have the information which makes risk mitigation possible. The hypothesis theorizes risk-based cultural dissociation and submits that individuals and society process risk-related information in a manner that allows for interpretation and acknowledgement of information so that it is compatible with individual and social agendas and constructs. Society and individuals can and do completely deny or dissociate from risk-related information. This exploratory research uses macro, meso, and micro levels of analysis to examine the environmental setting, land ownership and power, and professional and public seismic information. This examination is placed in the context of Anchorage's post-earthquake reconstruction momentum. Indepth interviews with elected officials, a bank president, insurance executives, investors, builders, appointed officials, private and public professionals, court representatives, a judge, a juror, and citizens provide insight into risk perception and individual and community agendas. The interviews revealed each level of analysis had different perceptions of risk and different agendas. Professional warnings not to reconstruct on high-risk land were ignored. Downtown economic interests and powerful individuals significantly impacted the community decision process. One charismatic leader played a major role in the community reconstruction and courthouse decisions. Research findings support the hypothesis. Individuals consistently chose to deny earthquake potential in their daily lives. Selective interpretation of information allowed individuals to support their own agendas. Community decision processes allowed deletion of important information and a transference of responsibility, resulting in no decision body or individual feeling responsible for the decision. Risk-based cultural dissociation is defined and presented in this research as a direction for future study.

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RebouÃas, Marina Cabral. "Cashew nut kernel-based prebiotic beverage: A study with consumers in different approaches for the evaluation of sensory and external factors to the product." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16496.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior
Prebiotic beverages made from cashew nut kernels and fruit juice are a viable alternative in the area of new functional productsâ development. Thus, this research aimed to develop three prebiotic beverages made from cashew nut kernels added with fruit juice (grape, mango and pineapple), evaluating how non-sensory attributes (external to the product) and consumersâ characteristics as to behavior and personality affect their acceptance. A factorial 2Â central composite rotatable design was used for the development of the formulations. Focus groups were applied to define the most important label attributes on consumerâs purchasing decision. The illustration, nutritional information and the term prebiotic associated with its functional claim, within their respective levels, were selected for the labelsâ development via the 3x2x3 full factorial design and the employment of conjoint analysis and cluster analysis multi-varying techniques for results evaluation. The mango beverage was evaluated displaying three different label versions in order to check if the expectation generated by different nutritional information affected consumersâ perception as to characteristics of quality, overall impression and purchasing attitude. The beverage added with pineapple juice was compared to its soy-based commercially similar in order to evaluate if information on composition, nutritional characteristics and functional claims associated with these products affect the acceptance and perception of consumers with different behavioral characteristics and personality. The formulations optimized as to acceptance should be added with the following concentrations of sugar and juice, respectively; grape beverage (37% and 7%), pineapple (35% and 7%) and mango (40% and 8%). Among the most important label attributes in the purchasing process, the illustration was the one that mostly influenced, followed by nutritional information and the term prebiotic and its functional claim. The nutritional claims displayed on the label revealed to have a positive impact over the perception of the beverage as to the characteristics of quality, overall impression and purchasing attitude, with information such as â0% lactose, 0% cholesterol and fiber-richâ and â0% lactose, 0% cholesterol and antioxidantsâ found to influence more positively consumers. Information related to the beverages made from soy and cashew nut did not influence the acceptance of flavor nor on the overall impression, nonetheless, it had a positive impact over consumersâ perception as to healthiness and the nutritious value of both, being the cashew nut kernel-based beverage perceived as more nutritious and healthier than the soy-based one. Consumersâ different characteristics as to the interest in healthy eating and food neophobia did not influence the acceptance of the beverages, their perception as healthy food and nutritious value.
Bebida prebiÃticas Ã base de amÃndoas de castanha de caju e suco de frutas Ã uma alternativa viÃvel na Ãrea de desenvolvimento de novos produtos funcionais. Assim, este trabalho objetivou desenvolver trÃs bebidas prebiÃticas Ã base de amÃndoa da castanha de caju adicionadas de suco de frutas (uva, manga e abacaxi), avaliando de que forma atributos nÃo sensoriais (externos ao produto) e caracterÃsticas comportamentais e de personalidade dos consumidores afetam a sua aceitaÃÃo. Utilizou-se um delineamento fatorial 22 do tipo composto central rotacionado para desenvolvimento das formulaÃÃes. Grupos de foco foram empregados para definiÃÃo dos atributos do rÃtulo mais importantes na decisÃo de compra do consumidor. A ilustraÃÃo, as informaÃÃes nutricionais e o termo prebiÃtico associado a sua alegaÃÃo funcional, com seus respectivos nÃveis, foram selecionados para o desenvolvimento dos rÃtulos por meio de delineamento fatorial completo do tipo 3 x 2 x 3, aplicando-se as tÃcnicas multivariadas conjoint analysis e cluster analysis para avaliaÃÃo dos resultados. A bebida de manga foi avaliada associada a trÃs versÃes do rÃtulo para verificar se a expectativa gerada por diferentes informaÃÃes nutricionais afetavam a percepÃÃo dos consumidores quanto Ãs caracterÃsticas de qualidade, impressÃo global e atitude de compra. A bebida adicionada de suco de abacaxi foi comparada frente ao seu similar comercial Ã base de soja para avaliar se informaÃÃes sobre composiÃÃo, caracterÃsticas nutricionais e alegaÃÃes funcionais associadas a estes produtos afetam a aceitaÃÃo e percepÃÃo dos consumidores com diferentes caracterÃsticas comportamentais e de personalidade. As formulaÃÃes otimizadas quanto Ã aceitaÃÃo devem ser adicionadas das seguintes concentraÃÃes de suco e aÃÃcar, respectivamente, para a bebida de uva (37% e 7%), abacaxi (35% e 7%) e manga (40% e 8%). Dentre os atributos do rÃtulo mais importantes no processo de compra, a ilustraÃÃo foi o que mais influenciou, seguido pelas informaÃÃes nutricionais e pelo termo prebiÃtico e sua alegaÃÃo funcional. As alegaÃÃes nutricionais no rÃtulo mostraram ter um impacto positivo na percepÃÃo da bebida quanto Ãs caracterÃsticas de qualidade, impressÃo global e atitude de compra, com os as informaÃÃes â0% lactose, 0% colesterol e fonte de fibrasâ e â0% lactose, 0% colesterol e antioxidantesâ influenciando mais positivamente os consumidores As informaÃÃes relacionadas Ãs bebidas de soja e castanha de caju nÃo influenciaram a aceitaÃÃo do sabor e impressÃo global, no entanto tiveram um impacto positivo na percepÃÃo dos consumidores quanto Ã saudabilidade e o valor nutritivo de ambas, sendo a bebida Ã base de amÃndoa da castanha de caju percebida como mais nutritiva e mais saudÃvel do que a bebida de soja. As diferentes caracterÃsticas dos consumidores quanto ao interesse em alimentaÃÃo saudÃvel e a neofobia alimentar nÃo tiveram influÃncia sobre a aceitaÃÃo das bebidas, a percepÃÃo de alimento saudÃvel e valor nutritivo.

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Babayan, Bénédicte. "Unraveling the neural circuitry of sequence-based navigation using a combined fos imaging and computational approach." Thesis, Paris 5, 2014. http://www.theses.fr/2014PA05T059/document.

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La navigation spatiale est une fonction complexe qui nécessite de combiner des informations sur l’environnement et notre mouvement propre pour construire une représentation du monde et trouver le chemin le plus direct vers notre but. Cette intégration multimodale suggère qu’un large réseau de structures corticales et sous-corticales interagit avec l’hippocampe, structure clé de la navigation. Je me suis concentrée chez la souris sur la navigation de type séquence (ou stratégie égocentrique séquentielle) qui repose sur l’organisation temporelle de mouvements associés à des points de choix spatialement distincts. Après avoir montré que l’apprentissage de cette navigation de type séquence nécessitait l’hippocampe et le striatum dorso-médian, nous avons caractérisé le réseau fonctionnel la sous-tendant en combinant de l’imagerie Fos, de l’analyse de connectivité fonctionnelle et une approche computationnelle. Les réseaux fonctionnels changent au cours de l’apprentissage. Lors de la phase précoce, le réseau impliqué comprend un ensemble de régions cortico-striatales fortement corrélées. L’hippocampe était activé ainsi que des structures impliquées dans le traitement d’informations de mouvement propre (cervelet), dans la manipulation de représentations mentales de l’espace (cortex rétrosplénial, pariétal, entorhinal) et dans la planification de trajectoires dirigées vers un but (boucle cortex préfrontal-ganglions de la base). Le réseau de la phase tardive est caractérisé par l’apparition d’activations coordonnées de l’hippocampe et du cervelet avec le reste du réseau. Parallèlement, nous avons testé si l’intégration de chemin, de l’apprentissage par renforcement basé modèle ou non-basé modèle pouvaient reproduire le comportement des souris. Seul un apprentissage par renforcement non-basé modèle auquel une mémoire rétrospective était ajoutée pouvait reproduire les dynamiques d’apprentissage à l’échelle du groupe ainsi que la variabilité individuelle. Ces résultats suggèrent qu’un modèle d’apprentissage par renforcement suffit à l’apprentissage de la navigation de type séquence et que l’ensemble des structures que cet apprentissage requiert adaptent leurs interactions fonctionnelles au cours de l’apprentissage
Spatial navigation is a complex function requiring the combination of external and self-motion cues to build a coherent representation of the external world and drive optimal behaviour directed towards a goal. This multimodal integration suggests that a large network of cortical and subcortical structures interacts with the hippocampus, a key structure in navigation. I have studied navigation in mice through this global approach and have focused on one particular type of navigation, which consists in remembering a sequence of turns, named sequence-based navigation or sequential egocentric strategy. This navigation specifically relies on the temporal organization of movements at spatially distinct choice points. We first showed that sequence-based navigation learning required the hippocampus and the dorsomedial striatum. Our aim was to identify the functional network underlying sequence-based navigation using Fos imaging and computational approaches. The functional networks dynamically changed across early and late learning stages. The early stage network was dominated by a highly inter-connected cortico-striatal cluster. The hippocampus was activated alongside structures known to be involved in self-motion processing (cerebellar cortices), in mental representation of space manipulations (retrosplenial, parietal, entorhinal cortices) and in goal-directed path planning (prefrontal-basal ganglia loop). The late stage was characterized by the emergence of correlated activity between the hippocampus, the cerebellum and the cortico-striatal structures. Conjointly, we explored whether path integration, model-based or model-free reinforcement learning algorithms could explain mice’s learning dynamics. Only the model-free system, as long as a retrospective memory component was added to it, was able to reproduce both the group learning dynamics and the individual variability observed in the mice. These results suggest that a unique model-free reinforcement learning algorithm was sufficient to learn sequence-based navigation and that the multiple structures this learning required adapted their functional interactions across learning

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Kao, Yi-kai, and 高益凱. "Analysis of Emergency Physicians'' Perception and Application of Evidence-Based Medicine." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/2k62k4.

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碩士
國立中山大學
醫務管理研究所
96
The purposes of this study were to understand emergency physicians’ perception, attitude and application of evidence-based medicine(EBM). This cross-sectional study employed quantitative methods. Regarding the quantitative method, the study population included emergency physicians in southern Taiwan of 32 participating hospitals. Structured questionnaires were sent to emergency physicians, a total of 214 questionnaires were distributed with 189 questionnaires being returned. The response rate was 88.32%. Descriptive statistics was used in data analysis. The major findings were: 1. Emergency physician’s perception of EBM: The average score in Physicians’ understanding EBM terminologies were from 1.88 to 2.79(score ranged from 1 to 4, 1 represented fully understand). 2. Emergency physician’s attitude of EBM: a. There were over a half (57.7%) emergency physicians had taken EBM training courses, while 93.1% expressed their willingness to attend EBM activities in the future. b. Most emergency physicians(86.7%) agreed that application of EBM was useful in clinical practice. c. The major barriers of emergency physicians to apply EBM were lack of time(57.1%), lack of EBM knowledge(50.3%), lack of research methodology knowledge(45.5%) and hardness of critical appraisal(40.7%). d. In general, emergency physicians hold positive attitudes toward EBM, the average score was from 1.79 to 3.09 (score ranged from 1 to 5, 1 represented the most agree). 3. Emergency physician’s application of EBM: a. The average proportion of EBM application in emergency physicians’ clinical practice was 54.42% . b. Emergency physician’s choice of clinical problem-treating was diverse, only little clinical problem may have uniform opinions.

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Duan, Tong. "Towards a rough-fuzzy perception-based computing for vision-based indoor navigation." 2014. http://hdl.handle.net/1993/23689.

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An indoor environment could be defined by a complex layout in a compact space. Since mobile robots can be used as substitute for human beings to access harmful and inaccessible locations, the research of autonomous indoor navigation has attracted much interest. In general, a mobile robot navigates in an indoor environment where acquired data are limited. Furthermore, sensor measurements may contain errors in a number of situations. Therefore, the complexity of indoor environment and ability of sensors have determined that it is an insufficient to merely compute with data. This thesis presents a new rough-fuzzy approach to perception-based computing for an indoor navigation algorithm. This approach to perceptual computing is being developed to store, analyze and summarize existing experience in given environment so that the machine is able to detect current situation and respond optimally. To improve uncertainty reasoning of fuzzy logic control, a rough set theory is integrated to regulate inputs before applying fuzzy inference rules. The behaviour extraction is evaluated and adjusted through entropy-based measures and multi-scale analysis. The rough-fuzzy based control algorithm aims to minimize overshoot and optimize transient-state period during navigation. The proposed algorithm is tested through simulations and experiments using practical common situations. The performance is evaluated with respect to desired path keeping and transient-state adaptability.

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Madvonsela, Sanele Mchumanisi, and Sanele Mchumanisi Madvonsela. "Public Perception of Facebook News Content based on Sentiment Analysis using Machine Learning Algorithms." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/e8nsem.

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碩士
國立臺北科技大學
電資國際專班
107
A wide variety of events occur on daily basis that triggers the responses, opinions and feelings of the public. Such occurrences usually form part of public news issues which tend to be broadcasted by news media companies through different news forums such as social media, websites, television and others. To investigate the perceptions of the public towards the different news affairs, sentiment analysis is performed on the responses of the public on each news content. Machine learning algorithms are employed to perform the investigations and predictions on the public opinions and perceptions from the different sources of the news issues like Facebook. Social media platforms like Facebook and Twitter are expansively utilized by people and establishments such as news media companies and governments to share information. Facebook is the most used social networking site in the world with more than 2.3 billion active users a month and an average of more than 1.5 billion active users daily as of March 31, 2019. Facebook is one of the social media which allows its members to post status updates on their timelines and comments on other user’s posts. Facebook allows application developers to access public Facebook posts and comments. NETVIZZ is a data collection and extraction tool that enables researchers to export data in standard file formats from different sections of the Facebook social networking service. Sentiment Analysis (SA) is one small application of Natural Language Processing, computational linguistics, and text analytics to find out and extract subjective information from social media. Therefore, in this thesis, Facebook posts and comments are extracted and sentiment analysis is implemented on them. Based on the results of the sentiment analysis, predictions can be drawn to determine the perceptions of the public on the Facebook News posts. Machine learning techniques, Naïve Bayes, Support Vector Machine and Logistic Regression are compared to determine the best classifier which is further employed to do the sentiment analysis of the news comments and determine the general views of the public from the text they post on Facebook.

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Li-Chan, Toh, and 杜麗珍. "Outpatient’s Perception on Medical Care Service Quality and Related Factors Based on Opportunity Algorithm Analysis." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/71729013476236799495.

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碩士
國防醫學院
公共衛生學研究所
98
Background: With the advancements of living standard, the public much more concern the health issues and forces each hospital to set up a self-appraisal monitoring system to increase the quality of healthcare. However past research mainly emphasis on the patients’ satisfaction, few of them noticed about the importance of medical services which patients pay much attention to. Aims: The purposes of this study were to explore the importance and satisfaction of the medical services, finding out the most potential services demanded through the opportunity algorithms analysis. The present study also examines the relationships and find out the determinants of the overall satisfactions, patient loyalty and recommendation. Methods: A cross-sectional survey was conducted and there were 462 outpatients who recruited in a medical center in Northern Taiwan in the study. The present study employed a structured questionnaire which contains of 5 Rating Components (includes Accessibility, Appropriateness, Accessibility, Coordination, Comprehensive and Continuity) which used to measure the importance and satisfaction of the medical service. Data was analyzed using SPSS 14 for Windows. Results: The research demonstrated that the most importance service items were “hospital’s medical equipment is better than community clinic”, “medical profession” and “familiar which medical instrument operates”. Besides, patient most satisfaction with “medical equipment is better than community clinic”, “initiates the non-tobacco environment” and “keep the medical record properly”. Yet, "physician utilization", "condition of continuing care" and "service route planning or direction is clear" were the services with most in need for further improvement. The study also revealed the relationships between the overall satisfactions, patient loyalty and recommend voluntarily were remarkable. Through the analysis of regression, factors of “doctor will suggest the patient transfers to the other disciplines” or “hospital regards patient’s need”, “discuss with the patient after seeing a different doctor”, “even inform before carrying any treatment and so on behaviors” were proving to increase the patient loyalty. Present study also showed the level of patients’ satisfaction on “overall registration mode”, “doctor-patient communication”, “the burden of medical expenses” and the “solution when registration number was passed” were most able to predict the overall satisfaction of the medical center. To improve patient satisfaction, concise service route directions, professional training which emphasize on time concept and continuity care should be priorities. Conclusions: The study concludes that while the gap of the medical service were truly filling up, there may help to promote the hospital’s performance as well as the quality of the medical service.

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Lai, Yu-Cheng, and 賴宥成. "Rate Control Algorithm for Multi-view Video Coding Using Visual Perception Based Stereo Video Analysis." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/52680594819813671884.

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碩士
國立暨南國際大學
電機工程學系
99
Currently, thanks for the development of video technology, the major topic of TV change from 2D to 3D. Compare to the traditional 2D video contents and 3D video contents, that need view content for 2D video and at least two or more than views for 3D video, respectively. Huge information of 3D video contents causes the awkward situation during data compression and data transmission. To solve the problem, Joint Video Team (JVT) proposes a coding method that utilizes the content-similar relationship between neighboring views to increase the efficiency of multi-view video coding (MVC). Therefore, rate control (RC) algorithm is the key technique to tradeoff data compression ratio and video quality of 3D video. To control the bit-rate efficiently, considering video quality and compression ratio, the proposed algorithm utilizes the characteristic of visual perception theory from the analysis of 3D video that the region with high motion and individual object feature are interesting to viewer. Based on the concept, the proposed rate control algorithm gives the high bit-rate at the interesting region for preserve the image quality, decreases the image quality at the region of non-interesting for saving the bit-rate. The proposed algorithm determines interesting region with high motion feature by using the relationship between luminance difference and Just Noticeable Distortion (JND) function at the current and reference macro-block (MB). To enhance the ability of describing motion feature, the proposed algorithm uses luminance histogram bin variation of the two MBs to describe low motion feature, edge strength (ES) describes the object with individual shape and obvious texture. By the interesting region determination, the rate-control algorithm is used by quantization parameter (QP) defining to control bit-rate at different levels of interesting region. Simulation result of “PSNR of similar bit-rate” shows the proposed algorithm has better image quality than JMVC at the interesting region with high motion feature that increase 0.86dB of PSNR and save 2.5(bit/MB) at the non-interesting region.

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LOIA, FRANCESCA. "A viable systems perspective for managing urban complexity: collective perception based on fuzzy and semantic approaches in the decision-making process." Doctoral thesis, 2020. http://hdl.handle.net/11573/1342651.

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Purpose. The growing complexity of urban landscapes and the faster technology evolution make central a rethink of urban governance, in order to understand how the application of smart technologies and automatized research techniques to big data management reframe and boost decision-making processes. The adoption of a systems perspective permits to focus on the definition of new model of decision-making for urban context, based on a participatory logic, which can increase actors’ engagement, which populate the same context and harmonize their objectives with community’s overall goal. In this regard, adopting the interpretative lens of the Viable Systems Approach (VSA), this work aims to propose a decision-making support model for the urban governing body to frame the urban collective perception of the actors (e.g. citizens and tourists) regarding the city and its assets. Thus, the adhesion to VSA can enhance the awareness of the interventions that could be aimed at solving urban problems. Methodology. The proposed model follows a robust and innovative methodological framework based on a big data-oriented approach. Firstly, following the Lynch’s theory, the most relevant urban elements that contribute to create the common perception of a city are defined. After, starting from crawling texts from online sources, the methodology foresees to apply an Aspect Based Sentiment Analysis (ABSA), an advanced sentiment analysis, to evaluate the sentiment expressed in the reviews by online users regarding the urban elements. Finally, scenario analysis is performed by using Fuzzy Cognitive Map (FCM) to analyse the impact of users’ opinion about city issues. Findings. A large-scale text analytics study has been conducted on two selected Italian cities. The results lead to an exposition of shared evaluations on the levels of “sentiment” as perceived by the community in relation to urban points of interest through summary sheets. Furthermore, carrying out a What-If simulation, it is determined how the current collective perception affects other important urban issues and how, changing the collective perception through targeted interventions, the urban context will react. In this way, the information variety endowment of the decision makers is increased and a series of interventions, aimed at establishing the conditions for a context consonance, by obtaining an overall view composed by the different perceptions of the community, can be implemented. Research limits. Beyond the advantages offered by big data analysis (primarily the possibility of analyzing a huge amount of data in real time), the automated collection of people’s reviews is characterized by a certain superficiality, since it does not allow going deep into the understanding of the people’s opinions. In fact, although the sample was particularly large (a huge amount of reviews extracted in a period span of 12 months), could be interesting a deeper analysis of users’ complete through in-depth interviews. Practical implications. The model can support urban decision-makers by offering some insights on the level of sentiment and some relevant results deriving from scenario analysis to understand how the collective perception of the city can influence important urban questions and how the governing body should intervene for aligning to an ideal city. In this way, it is possible to reduce the delay which characterizes the urban systems in relation to a critical situation perceived by the community and the interventions by the institutions. Another important aspect regards the capacity to depict graphically the results obtained: processing information through the visual system can significantly increase managerial capability to address complexity. Furthermore, the proposed model promotes a common language between urban decision makers and stakeholders by guaranteeing a greater awareness of the interventions to carry out. Originality. The originality of the paper lies in combining, in a single model, the VSA, interpretative lens of reality, with an innovative methodology followed a big data-oriented approach. In particular, the work has utilized knowledge from three different fields, i.e. urban management, computing science and statistics, which have been synergistically integrate for customizing, implementing, and using IT tools capable of automatically identifying, selecting, categorizing and analyzing the collective perception of a city and urban assets in it through people’s reviews.

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Chen, Shun-An, and 陳順安. "Thesis Title: The Policy and Perception of Labor's Safety and Health of R.O.C--An Analysis of Investigation Based on the Chung-Hwa Telecom." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/13099370620169055065.

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碩士
國立東華大學
公共行政研究所
92
The rate of occupational accident of Taiwan industry is higher than the advanced country such as America, England, and Japan etc. To reduce the occurrence of occupational accident, the authority has established varieties of policies of labor''s safety and health, and demand the employer and employee to obey. The corporations set up their own policies of labor''s safety and health according to the nature and hazards of their corporations. And these policies will be the core conception and the goal for the management of labor''s safety and health. But if laborers do not perceive and obey the policies, the rate of occupational accident will not reduce effectively. So we must study the perception and compliance of labor for the policies of labor''s safety and health. 　　The main reason for the occupational accident is the unsafe behaviors of laborer, and the perception (knowledge and attitude) of safety and health will influence the occurrence of unsafe behaviors. So it is helpful to study the labor''s perception of safety and health, for the authority and corporations to set up the policies to prevent the occupational accident effectively. 　　The object of this research is to investigate the perception of safety and health and the policies of safety and health of the employees of Chung-Hwa Telecom Co., and analyze the tendency and deviation. By the method of interviewing and questionnaires designed by the author, the empirical evidences show that: 1.The employees of Chung-Hwa Telecom Co. identify that the first reason for the occupational accident is the negligence of laborer, the second is the problem of the environment of working, and the third is the facilities of protection. 2.In the employees of Chung-Hwa Telecom Co., the more compliant to the policy of safety and health, the more important they think of safety and health. And the motivation, the self-control belief, the training and education, the compliance are positive relevant. They think that the policy of safety and health of the corporation can reduce the occurrence of occupational accident; to the perception of safety and health, the older male employees got the better perception. 3.In the employees of Chung-Hwa Telecom Co., to the self-control belief that occupational accident can be prevented by being careful. 4.In the employees of Chung-Hwa Telecom Co., to the acceptance of training and education of safety and health, the employees whose tenure is more than 30 years are better than those whose tenure is less than 10 years. 5.In the employees of Chung-Hwa Telecom Co., to the whole perception of safety and health, (1) the male employees are better than the female employees. (2) the employees of technical department better than the employees of business department. (3) the older are better than the younger. (4) the employees whose tenure is more than 30 years are better than those whose tenure is less than 10 years.

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Rehman, Zaina. "An assesment of brand reputation as an attitudinal construct at Nike: a female consumer perception analysis." Diss., 2017. http://hdl.handle.net/10500/23852.

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Text in English
Brand reputation has received the attention of many scholars and practitioners because it is central to the success of organisations of all kinds, and an intangible asset with no substitute. In the academic world, brand reputation has been demarcated by various scholars, depending on the disciplinary mind-set involved. It has been established that diverse stakeholder groups have different needs from a brand and their perceptions of brand reputation are thus varied. Acknowledging the needs of different stakeholders and the importance of the consumer stakeholder group allows for a more nuanced and systematic approach in conceptualising brand reputation. Although numerous studies have attempted to explain brand reputation, there is a paucity of studies that have actually conceptualised brand reputation as an attitudinal construct based on both cognitive (rational) and affective (emotional) components. Even fewer researchers have endeavoured to conceptualise brand reputation as an attitudinal construct in the consumer stakeholder group. The aim of this study was to explore female consumer perceptions of Nike’s brand reputation and conceptualise brand reputation as an attitudinal construct based on both cognitive and affective components. The study used qualitative research methods (focus groups and interviews) to collect data on Nike from a group of female consumers in order to identify perceptions and elements that contribute to conceptualising brand reputation on the basis of the components of attitudes. The key findings of this study highlighted the fact that brand reputation is a multidimensional construct and can be demarcated through various elements that contribute to the following themes: perception of product qualities and service, the perception of brand traits and the perception of brand strategy. These themes contribute to the conceptualisation of brand reputation as an attitudinal construct. Since brand reputation as an attitudinal construct has previously been conceptualised based on cognitive and affective components, this study confirmed the two components but a unique finding of this study was the identification of the behavioural component of attitudes. Hence the study findings not only make a contribution to the existing body of knowledge on perceptions of brand reputation in an elusive stakeholder group – female consumers, consumer-based reputation (CBR), and in defining brand reputation but also conceptualise brand reputation as an attitudinal construct based on previously identified cognitive and affective components as well as the newfound behavioural component of attitudes.
Communication Science
M.A. (Communication Science)

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Bristow, Michele Mei-Ting. "System of Systems Engineering for Policy Design." Thesis, 2013. http://hdl.handle.net/10012/7985.

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A system of systems (SoS) framework is proposed for policy design that takes into account the value systems of multiple participants, harnesses the complexity of strategic interactions among participants, and confronts the risks and uncertainties present in participants’ decision making. SoS thinking provides an integrative and adaptive mindset, which is needed to tackle policy challenges characterized by conflict, complexity, and uncertainty. With the aim of putting SoS thinking into practice, operational methods and tools are presented herein. Specifically, SoS engineering methodologies to create value system models, agent-based models of competitive and cooperative behaviour under conflict, and risk management models are developed and integrated into the framework. The proposed structure, methods and tools can be utilized to organize policy design discourse. Communication among participants involved in the policy discussion is structured around SoS models, which are used to integrate multiple perspectives of a system and to test the effectiveness of policies in achieving desirable outcomes under varying conditions. In order to demonstrate the proposed methods and tools that have been developed to enliven policy design discourse, a theoretical common-pool resources dilemma is utilized. The generic application illustrates the methodology of constructing ordinal preferences from values. Also, it is used to validate the agent-based modeling and simulation platform as a tool to investigate strategic interactions among participants and harness the potential to influence and enable participants to achieve desirable outcomes. A real-world common pool resources dilemma in the provisioning and security considerations of the Straits of Malacca and Singapore is examined and employed as a case study for applying strategic conflict models in risk management. Overall, this thesis advances the theory and application of SoS engineering and focuses on understanding value systems, handling complexity in terms of conflict dynamics, and finally, enhancing risk management.

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(6326255), Stefan M. Irby. "Evaluation of a Novel Biochemistry Course-Based Undergraduate Research Experience (CURE)." Thesis, 2019.

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Course-based Undergraduate Research Experiences (CUREs) have been described in a range of educational contexts. Although various learning objectives, termed anticipated learning outcomes (ALOs) in this project, have been proposed, processes for identifying them may not be rigorous or well-documented, which can lead to inappropriate assessment and speculation about what students actually learn from CUREs. Additionally, evaluation of CUREs has primarily relied on student and instructor perception data rather than more reliable measures of learning.This dissertation investigated a novel biochemistry laboratory curriculum for a Course-based Undergraduate Research Experience (CURE) known as the Biochemistry Authentic Scientific Inquiry Lab (BASIL). Students participating in this CURE use a combination of computational and biochemical wet-lab techniques to elucidate the function of proteins of known structure but unknown function. The goal of the project was to evaluate the efficacy of the BASIL CURE curriculum for developing students’ research abilities across implementations. Towards achieving this goal, we addressed the following four research questions (RQs): RQ1) How can ALOs be rigorously identified for the BASIL CURE; RQ2) How can the identified ALOs be used to develop a matrix that characterizes the BASIL CURE; RQ3) What are students’ perceptions of their knowledge, confidence and competence regarding their abilities to perform the top-rated ALOs for this CURE; RQ4) What are appropriate assessments for student achievement of the identified ALOs and what is the nature of student learning, and related difficulties, developed by students during the BASIL CURE? To address these RQs, this project focused on the development and use of qualitative and quantitative methods guided by constructivism and situated cognition theoretical frameworks. Data was collected using a range of instruments including, content analysis, Qualtrics surveys, open-ended questions and interviews, in order to identify ALOs and to determine student learning for the BASIL CURE. Analysis of the qualitative data was through inductive coding guided by the concept-reasoning-mode (CRM) model and the assessment triangle, while analysis of quantitative data was done by using standard statistical techniques (e.g. conducting a parried t-test and effect size). The results led to the development of a novel method for identifying ALOs, namely a process for identifying course-based undergraduate research abilities (PICURA; RQ1; Irby, Pelaez, & Anderson 2018b). Application of PICURA to the BASIL CURE resulted in the identification and rating by instructors of a wide range of ALOs, termed course-based undergraduate research abilities (CURAs), which were formulated into a matrix (RQs 2; Irby, Pelaez, & Anderson, 2018a,). The matrix was, in turn, used to characterize the BASIL CURE and to inform the design of student assessments aimed at evaluating student development of the identified CURAs (RQs 4; Irby, Pelaez, & Anderson, 2018a). Preliminary findings from implementation of the open-ended assessments in a small case study of students, revealed a range of student competencies for selected top-rated CURAs as well as evidence for student difficulties (RQ4). In this way we were able to confirm that students are developing some of the ALOs as actual learning outcomes which we term VLOs or verified learning outcomes. In addition, a participant perception indicator (PPI) survey was used to gauge students’ perceptions of their gains in knowledge, experience, and confidence during the BASIL CURE and, therefore, to inform which CURAs should be specifically targeted for assessment in specific BASIL implementations (RQ3;). These results indicate that, across implementations of the CURE, students perceived significant gains with large effect sizes in their knowledge, experience, and confidence for items on the PPI survey (RQ3;). In our view, the results of this dissertation will make important contributions to the CURE literature, as well as to the biochemistry education and assessment literature in general. More specifically, it will significantly improve understanding of the nature of student learning from CUREs and how to identify ALOs and design assessments that reveal what students actually learn from such CUREs - an area where there has been a dearth of available knowledge in the past. The outcomes of this dissertation could also help instructors and administrators identify and align assessments with the actual features of a CURE (or courses in general), use the identified CURAs to ensure the material fits departmental or university needs, and evaluate the benefits of students participating in these innovative curricula. Future research will focus on expanding the development and validation of assessments so that practitioners can better evaluate the efficacy of their CUREs for developing the research competencies of their undergraduate students and continue to render improvements to their curricula.

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Ragozzino, Matthew. "Multiresolution variance-based image fusion." Thesis, 2014. http://hdl.handle.net/1805/3799.

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Indiana University-Purdue University Indianapolis (IUPUI)
Multiresolution image fusion is an emerging area of research for use in military and commercial applications. While many methods for image fusion have been developed, improvements can still be made. In many cases, image fusion methods are tailored to specific applications and are limited as a result. In order to make improvements to general image fusion, novel methods have been developed based on the wavelet transform and empirical variance. One particular novelty is the use of directional filtering in conjunction with wavelet transforms. Instead of treating the vertical, horizontal, and diagonal sub-bands of a wavelet transform the same, each sub-band is handled independently by applying custom filter windows. Results of the new methods exhibit better performance across a wide range of images highlighting different situations.

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Masilo, Motshidisi Marleen. "Implementing inquiry-based learning to enhance Grade 11 students' problem-solving skills in Euclidean Geometry." Thesis, 2018. http://hdl.handle.net/10500/24966.

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Researchers conceptually recommend inquiry-based learning as a necessary means to alleviate the problems of learning but this study has embarked on practical implementation of inquiry-based facilitation and learning in Euclidean Geometry. Inquiry-based learning is student-centred. Therefore, the teaching or monitoring of inquiry-based learning in this study is referred to as inquiry-based facilitation. The null hypothesis discarded in this study explains that there is no difference between inquiry-based facilitation and traditional axiomatic approach in teaching Euclidean Geometry, that is, H0: μinquiry-based facilitation = μtraditional axiomatic approach. This study emphasises a pragmatist view that constructivism is fundamental to realism, that is, inductive inquiry supplements deductive inquiry in teaching and learning. Participants in this study comprise schools in Tshwane North district that served as experimental group and Tshwane West district schools classified as comparison group. The two districts are in the Gauteng Province of South Africa. The total number of students who participated is 166, that is, 97 students in the experimental group and 69 students in the comparison group. Convenient sampling applied and three experimental and three comparison group schools were sampled. Embedded mixed-method methodology was employed. Quantitative and qualitative methodologies are integrated in collecting data; analysis and interpretation of data. Inquiry-based-facilitation occurred in experimental group when the facilitator probed asking students to research, weigh evidence, explore, share discoveries, allow students to display authentic knowledge and skills and guiding students to apply knowledge and skills to solve problems for the classroom and for the world out of the classroom. In response to inquiry-based facilitation, students engaged in cooperative learning, exploration, self-centred and self-regulated learning in order to acquire knowledge and skills. In the comparison group, teaching progressed as usual. Quantitative data revealed that on average, participant that received intervention through inquiry-based facilitation acquired inquiry-based learning skills and improved (M= -7.773, SE= 0.7146) than those who did not receive intervention (M= -0.221, SE = 0.4429). This difference (-7.547), 95% CI (-8.08, 5.69), was significant at t (10.88), p = 0.0001, p<0.05 and represented a large effect size of 0.55. The large effect size emphasises that inquiry-based facilitation contributed significantly towards improvement in inquiry-based learning and that the framework contributed by this study can be considered as a framework of inquiry-based facilitation in Euclidean Geometry. This study has shown that the traditional axiomatic approach promotes rote learning; passive, deductive and algorithmic learning that obstructs application of knowledge in problem-solving. Therefore, this study asserts that the application of Inquiry-based facilitation to implement inquiry-based learning promotes deeper, authentic, non-algorithmic, self-regulated learning that enhances problem-solving skills in Euclidean Geometry.
Mathematics Education
Ph. D. (Mathematics, Science and Technology Education)

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Holland, Giles. "Looking for a Simplicity Principle in the Perception of Human Walking Motion." Thesis, 2010. http://hdl.handle.net/1974/6187.

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The simplicity principle posits that we interpret sense data as the simplest consistent distal cause, or that our high level perceptual representations of stimuli are optimized for simplicity. The traditional paradigm used to test this principle is coding theory, where alternate representations of stimuli are constructed, simplicity is measured as shortness of representation length, and behavioural experiments attempt to show that the shortest representations correspond best to perception. In this study we apply coding theory to marker-based human walking motion. We compare two representation schemes. The first is based on marker coordinates in a body-centred Cartesian coordinate system. The second is based on a model of 15 rigid body segments with Euler angles and a Cartesian translation for each. Both of our schemes are principal component (PC)-based implementations of a norm-based multidimensional object space – a type of model for high level perceptual schemes that has received attention in the literature over the past two decades. Representation length is quantified as number of retained PC’s, with error increasing with discarded PC’s. We generalize simplicity to efficiency measured as error across all possible lengths, where more efficient schemes admit less error across lengths. We find that the Cartesian coordinates-based scheme is more efficient than the Euler angles and translations-based scheme across a database of 100 walkers. In order to link this finding to perception we turn to the caricature effect that subjects can identify caricatures of familiar stimuli more accurately than veridicals. Our design was to compare walker caricatures generated in our two schemes in the hope of finding that one gives caricatures that benefit identification more than the other, from which we would conclude the former to be a better model of the true perceptual scheme. However, we find that analogous caricatures between the two schemes are only distinguishable at caricature levels so extreme that identification performance breaks down, so our design became infeasible and no conclusion for a simplicity principle in walker perception is reached. We also measure a curve of increasing then decreasing identification performance with caricature level and an optimal level at approximately double the distinctiveness of a typical walker.
Thesis (Master, Neuroscience Studies) -- Queen's University, 2010-10-29 19:16:39.943

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Cai, Hongyuan. "Video anatomy : spatial-temporal video profile." Thesis, 2014. http://hdl.handle.net/1805/4832.

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Indiana University-Purdue University Indianapolis (IUPUI)
A massive amount of videos are uploaded on video websites, smooth video browsing, editing, retrieval, and summarization are demanded. Most of the videos employ several types of camera operations for expanding field of view, emphasizing events, and expressing cinematic effect. To digest heterogeneous videos in video websites and databases, video clips are profiled to 2D image scroll containing both spatial and temporal information for video preview. The video profile is visually continuous, compact, scalable, and indexing to each frame. This work analyzes the camera kinematics including zoom, translation, and rotation, and categorize camera actions as their combinations. An automatic video summarization framework is proposed and developed. After conventional video clip segmentation and video segmentation for smooth camera operations, the global flow field under all camera actions has been investigated for profiling various types of video. A new algorithm has been designed to extract the major flow direction and convergence factor using condensed images. Then this work proposes a uniform scheme to segment video clips and sections, sample video volume across the major flow, compute flow convergence factor, in order to obtain an intrinsic scene space less influenced by the camera ego-motion. The motion blur technique has also been used to render dynamic targets in the profile. The resulting profile of video can be displayed in a video track to guide the access to video frames, help video editing, and facilitate the applications such as surveillance, visual archiving of environment, video retrieval, and online video preview.

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Redhead, Megan E. "The role of appearance in selection for sex-typed jobs." Thesis, 2014. http://hdl.handle.net/1805/6052.

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Indiana University-Purdue University Indianapolis (IUPUI)
Madeline Heilman’s (1983) Lack of Fit Model, which postulates why discrimination occurs in the selection of sex-typed jobs, has been applied to the interaction of applicant attractiveness. Yet recent research suggests that other appearance variables, namely sex-typed facial features, may be associated with perceptions of fit. Building upon Heilman’s 1983 model, the current study evaluated how sex-typed facial features relate to applicant selection for sex-typed fields. Undergraduate students were recruited for participation during the spring academic semester (n = 413) and data were analyzed using a 2x2x2 ANOVA. Results indicated that selection is significantly impacted by the three-way interaction of applicant sex, facial feature-type, and sex type of the applying field. Further, masculine-featured females and feminine-featured males were significantly less favored for selection within the feminine sex-typed field. Implications of these findings and the differential evaluation of male and female applicants in a feminine field are discussed.

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Dissertations / Theses on the topic 'Perception-based Analysis'

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