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Dissertations / Theses on the topic 'Data collection Methods'
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Murphy, John Frank Davis Mark E. Davis Mark E. "Methods for collection and processing of gene expression data /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-06252004-101813.
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Fullman, Leah Irene. "Craniofacial Teams' Data Collection and Reporting Methods for Videonasendoscopy and Videofluoroscopy." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/557.
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Videonasendoscopy and videofluoroscopy are two instruments used by craniofacial teams for assessing velopharyngeal function. Various methods have been proposed throughout the literature for collecting and reporting data from these two types of imaging studies. The purpose of this investigation is to survey craniofacial teams regarding current use of videonasendoscopy and videofluoroscopy in the clinical setting. The results show the videonasendoscopy is more frequently used than videofluoroscopy and that estimations are a more common data collection/reporting method than objective measurements. The data also show that a wide variety of methods are currently in use and only a small number of teams use the standardizing method proposed by the international working group (Golding-Kushner, et al., 1990).
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Haas, Georg-Christoph [Verfasser], and Bella [Akademischer Betreuer] Struminskaya. "Modernization of data collection methods / Georg-Christoph Haas ; Betreuer: Bella Struminskaya." Mannheim : Universitätsbibliothek Mannheim, 2021. http://d-nb.info/1239558260/34.
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Cyr, J. "The Pitfalls and Promise of Focus Groups as a Data Collection Method." SAGE PUBLICATIONS INC, 2015. http://hdl.handle.net/10150/615820.
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Despite their long trajectory in the social sciences, few systematic works
analyze how often and for what purposes focus groups appear in published
works. This study fills this gap by undertaking a meta-analysis of focus group
use over the last 10 years. It makes several contributions to our understanding
of when and why focus groups are used in the social sciences. First, the study
explains that focus groups generate data at three units of analysis, namely, the
individual, the group, and the interaction. Although most researchers rely
upon the individual unit of analysis, the method’s comparative advantage lies in
the group and interactive units. Second, it reveals strong affinities between
each unit of analysis and the primary motivation for using focus groups as a data
collection method. The individual unit of analysis is appropriate for triangulation;
the group unit is appropriate as a pretest; and the interactive unit is
appropriate for exploration. Finally, it offers a set of guidelines that researchers
should adopt when presenting focus groups as part of their research design.
Researchers should, first, state the main purpose of the focus group in a
research design; second, identify the primary unit of analysis exploited; and
finally, list the questions used to collect data in the focus group.
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Siddiqui, Muazzam. "DATA MINING METHODS FOR MALWARE DETECTION." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2783.
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This research investigates the use of data mining methods for malware (malicious programs) detection and proposed a framework as an alternative to the traditional signature detection methods. The traditional approaches using signatures to detect malicious programs fails for the new and unknown malwares case, where signatures are not available. We present a data mining framework to detect malicious programs. We collected, analyzed and processed several thousand malicious and clean programs to find out the best features and build models that can classify a given program into a malware or a clean class. Our research is closely related to information retrieval and classification techniques and borrows a number of ideas from the field. We used a vector space model to represent the programs in our collection. Our data mining framework includes two separate and distinct classes of experiments. The first are the supervised learning experiments that used a dataset, consisting of several thousand malicious and clean program samples to train, validate and test, an array of classifiers. In the second class of experiments, we proposed using sequential association analysis for feature selection and automatic signature extraction. With our experiments, we were able to achieve as high as 98.4% detection rate and as low as 1.9% false positive rate on novel malwares.Ph.D.
Other
Sciences
Modeling and Simulation PhD
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Nenneman, Milton. "An examination of state and local fusion centers and data collection methods." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://bosun.nps.edu/uhtbin/hyperion-image.exe/08Mar%5FNenneman.pdf.
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Thesis (M.A. in Security Studies (Homeland and Security Defense))--Naval Postgraduate School, March 2008.Thesis Advisor(s): Simeral, Robert. "March 2008." Description based on title screen as viewed on May 5, 2008. Includes bibliographical references (p. 119-122). Also available in print.
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Osowski, Christopher John. "Developing data collection methods to inform the quantitative design of cycle infrastructure." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/416629/.
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Increased share of urban travel by bicycle is widely desired as a cost-effective and environmentally-beneficial means of travel, and one which has the potential to reduce road congestion and improve health outcomes. Recent rapid cycling growth in cities such as London has served to highlight the lack of robust empirically-backed quantitative literature to inform the practitioner, and the consequential barrier to the delivery of enabling infrastructure of the scale required to meet that demand. Even simple measures vary by orders of magnitude in the literature and some depend on intuitively na¨ıve assumptions, so a simulation (based on the Social Force Model) was defined and implemented to test the key underpinning (non-interaction) assumption of the Highway Capacity Manual’s quantitative definition of cycle level of service. The simulations indicate that an assumption of non-interaction between cyclists results in an outcome intrinsically at odds with fundamental traffic flow theory. Both the literature and simulation process serve to highlight the lack of existing appropriate empirical data and behavioural understanding. Furthermore, collecting such data is difficult, expensive and not easily scalable using current methods. Consequently, a methodology for the collection of key cyclist parameters from generic video data was created, and can be applied to bespoke video surveys and existing CCTV capture, across a variety of modes, and at a fraction of the cost of human operators. In addition, a bicycle simulator is developed which can test cyclist behaviour in a replicable manner and in a range of circumstances. The design and construction process is detailed, and a proof-of-concept, validated against real data, is presented. Subject to some minor improvements identified, the simulator can now be used more widely for the collection of behavioural data. These methodologies provide new and practical capabilities for the collection and application of cyclist data, and a greater understanding of cycle behaviour.
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He, Yi. "An Analysis of Airborne Data Collection Methods for Updating Highway Feature Inventory." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5016.
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Highway assets, including traffic signs, traffic signals, light poles, and guardrails, are important components of transportation networks. They guide, warn and protect drivers, and regulate traffic. To manage and maintain the regular operation of the highway system, state departments of transportation (DOTs) need reliable and up-to-date information about the location and condition of highway assets. Different methodologies have been employed to collect road inventory data.
Currently, ground-based technologies are widely used to help DOTs to continually update their road database, while air-based methods are not commonly used. One possible reason is that the initial investment for air-based methods is relatively high; another is the lack of a systematic and effective approach to extract road features from raw airborne light detection and ranging (LiDAR) data and aerial image data. However, for large-area inventories (e.g., a whole state highway inventory), the total cost of using aerial mapping is actually much lower than other methods considering the time and personnel needed. Moreover, unmanned aerial vehicles (UAVs) are easily accessible and inexpensive, which makes it possible to reduce costs for aerial mapping. The focus of this project is to analyze the capability and strengths of airborne data collection system in highway inventory data collection.
In this research, a field experiment was conducted by the Remote Sensing Service Laboratory (RSSL), Utah State University (USU), to collect airborne data. Two kinds of methodologies were proposed for data processing, namely ArcGIS-based algorithm for airborne LiDAR data, and MATLAB-based procedure for aerial photography. The results proved the feasibility and high efficiency of airborne data collection method for updating highway inventory database.
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Palmer, Kurt D. "Data collection plans and meta models for chemical process flowsheet simulators." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/24511.
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Mitteff, Eric. "AUTOMATED ADAPTIVE DATA CENTER GENERATION FOR MESHLESS METHODS." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2635.
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Meshless methods have recently received much attention but are yet to reach their full potential as the required problem setup (i.e. collocation point distribution) is still significant and far from automated. The distribution of points still closely resembles the nodes of finite volume-type meshes and the free parameter, c, of the radial-basis expansion functions (RBF) still must be tailored specifically to a problem. The localized meshless collocation method investigated requires a local influence region, or topology, used as the expansion medium to produce the required field derivatives. Tests have shown a regular cartesian point distribution produces optimal results, however, in order to maintain a locally cartesian point distribution a recursive quadtree scheme is herein proposed. The quadtree method allows modeling of irregular geometries and refinement of regions of interest and it lends itself for full automation, thus, reducing problem setup efforts. Furthermore, the construction of the localized expansion regions is closely tied up to the point distribution process and, hence, incorporated into the automated sequence. This also allows for the optimization of the RBF free parameter on a local basis to achieve a desired level of accuracy in the expansion. In addition, an optimized auto-segmentation process is adopted to distribute and balance the problem loads throughout a parallel computational environment while minimizing communication requirements.M.S.M.E.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
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Bingham, Jonathan D. "Comparison of Data Collection and Methods For the Approximation of Streambed Thermal Properties." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/456.
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When approximating heat transfer through a streambed, an understanding of the thermal properties of the sediments is essential (e.g., thermal conductivity, specific heat capacity, and density). Even though considerable research has been completed in this field, little has been done to establish appropriate standard data collection approaches or to compare modeling methods for approximating these properties. Three mixture models were selected for comparison against each other and against a bed conduction model (SEDMOD). Typical data collection approaches were implemented for use in the mixture models while numerous data collection approaches were employed for use within SEDMOD. Sediment samples were taken from the streambed to estimate the necessary parameters for the mixture models (e.g., sediment volume, density, porosity, etc.) and to identify the minerals present. To yield more accurate estimates of the thermal properties from SEDMOD, methods of obtaining sediment temperature profiles representing the influences of conduction only were developed through the use of a steel cylinder and different capping materials (e.g., using geo-fabric or aluminum). In comparison to laboratory measurements of the thermal properties, it was found that the mixture model that provided the best estimates of the thermal properties was a volume weighted average. The method that best isolated conductive heating from advective heating was the steel cylinder with an aluminum cap. Using this data to calibrate SEDMOD yielded thermal diffusivity values most similar to the laboratory measurements. Due to its ability to estimate both thermal diffusivity and reproduce sediment temperature profiles, SEDMOD is recommended in combination with the aluminum isolation technique.
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Shepherdson, Robyn, Jennifer Funderburk, Nadiya Sunderji, Nadiya Sunderji, and Jodi Polaha. "Program Evaluation Intensive: Practical Training in Selecting Measures and Data Collection Methods to Obtain Useful Outcome Data." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/6546.
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Do you need help determining appropriate measures and feasible data collection methods for program evaluations within integrated primary care? In this 3-hour preconference workshop, leaders from CFHA’s Research & Evaluation Committee and Families, Systems, & Health journal will provide practical training in conducting rigorous program evaluations. This workshop will help you identify appropriate measures to answer your key questions as well as data collection methods that balance quality and feasibility. This workshop is designed for those who are planning, conducting, or revising a program evaluation, as attendees will apply the material to their own personal projects within interactive small groups.
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Fouskakis, Dimitris. "Stochastic optimisation methods for cost-effective quality assessment in health." Thesis, University of Bath, 2001. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341107.
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JackIe, Annette. "Seam Effects and Dependent Interviewing: Measurement Error and Data Collection Methods Specific to Panel Surveys." Thesis, University of Essex, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495567.
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As a result of measurement errors, responses given by the same person in different waves of a panel survey are often inconsistent. Such inconsistencies bias longitudinal estimates: the rates of change in respondents' circumstances from one interview to the,next are often implausibly high; transition rates for periods at the 'seam' between two reference periods typically far exceed transition rates for periods about which information comes from the same interview. The causes of longitudinal inconsistencies are not well understood. As a result the data collection methods designed to improve longitudinal measurement have had limited success. Dependent interviewing is one of the data collection methods used to improve longitudinal consistency. Substantive responses from previous interviews are pre-loaded onto the interviewers' computers. The previous responses are either used proactively, to remind respondents of previous answers, or reactively, to compare responses with previous ones and prompt edit check questions. Dependent interviewing is now used by most panel surveys with .computer assisted interviewing, although little is still known about its effects, and in particular, about the effects on longitudinal estimates. In this thesis, I first provide a framework of the different options for designing dependent interviewing questions and of their effects. The framework facilitates the comparison of different designs and provides a guide for designing new questions. Second, I test the impact on the efficiency of data collection and respondent burden and show that different designs can have opposing effects. Third, I test the effects of dependent interviewing on longitudinal estimates and show that it reduces bias for some, but not all types of estimates, and may even worsen bias. Fourth, I provide a framework of the causes of longitudinal inconsistencies that explains the shortcomings of current dependent interviewing designs and can be used as a tool for designing questions to improve longitudinal measurement.
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Kaufman, Benjamin. "Exploration Of New Methods In Long Distance Transportation Data Collection And Tourism Travel In Vermont." ScholarWorks @ UVM, 2017. http://scholarworks.uvm.edu/graddis/809.
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ABSTRACT
Human transportation patterns have continued to shift and increase in rate as technology has made travel between spatially disparate locations more feasible. These movements are responsible for approximately one third of global carbon emissions, and account for one half of Vermont’s greenhouse gas output. Modeling transportation behaviors is difficult due to changing travel patterns and issues of surveying human participants. Long distance travel patterns are especially difficult and have not received the attention that urban mobility has within the literature.
In this Masters thesis, I describe current methods of transportation data collection and propose new methods, as well as attempt to quantify the impact on Vermont’s roadways of the transportation-based tourism sector. In the first chapter of this thesis, I describe a GPS-based travel survey conducted over the course of one year, coupled with interview data of long distance trips undertaken by 10 participants. Long distance travel has historically been underrepresented in travel surveying due to its infrequency, resulting in decreased likelihood of capturing a long distance trip in a short travel study. By extracting points at intervals from the GPS dataset, it becomes possible to determine accuracy of trip matching between the two datasets with adjusted data collection methods. The second chapter examines transportation related to tourism in Vermont. As one of Vermont’s largest industry sectors, economic impact has been of particular interest to state planners. However, limited analyses of the transportation impacts of this sector are currently available. My research models route choice of drive through tourists, whom constitute 40% of visitors, attempting to begin quantifying tourist mileage and CO2 emissions within the state.
Together, these studies expand knowledge on long distance transport data collection and the role of tourism in Vermont’s transportation mileage.
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Radonovich, David Charles. "Methods of Extrapolating Low Cycle Fatigue Data to High Stress Amplitudes." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3460.
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Modern gas turbine component design applies much effort into prediction and avoidance of fatigue. Advances in the prediction of low-cycle fatigue (LCF) cracks will reduce repair and replacement costs of turbine components. These cracks have the potential to cause component failure. Regression modeling of low-cycle fatigue (LCF)test data is typically restricted for use over the range of the test data. It is often difficult to characterize the plastic strain curve fit constants when the plastic strain is a small fraction of the total strain acquired. This is often the case with high strength, moderate ductility Ni-base superalloys. The intent of this project is to identify the optimal technique for extrapolating LCF test results into stress amplitudes approaching the ultimate strength. The proposed method to accomplish this is by finding an appropriate upper and lower bounds for the cyclic stress-strain and strain-life equations. Techniques investigated include: monotonic test data anchor points, strain-compatibility, and temperature independence of the Coffin-Manson relation. A Ni-base superalloy (IN738 LC) data set with fully reversed fatigue tests at several elevated temperatures with minimal plastic strain relative to the total strain range was used to model several options to represent the upper and lower bounds of material behavior. Several high strain LCF tests were performed with stress amplitudes approaching the ultimate strength. An augmented data set was developed by combining the high strain data with the original data set. The effectiveness of the bounding equations is judged by comparing the bounding equation results with the base data set to a linear regression model using the augmented data set.M.S.M.E.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering MSME
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Majethia, Nita. "The epidemiology of common symtoms in the community : developing an evidence-based methodological approach to data collection." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=167808.
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Introduction Symptoms are universally experienced and can be bothersome. There have been comparatively few studies of common symptoms in the UK general population. As a result, little is known about the current epidemiology of common symptoms in the UK. There are major methodological challenges to conducting an epidemiological study of common symptoms in the community. Current knowledge about the most appropriate methodological tools for collecting and interpreting data on symptoms is limited. A range of methods has been used in previous studies, but the most appropriate method is not known. An evaluation of the different methods that could be used for investigating common symptoms in the community was therefore required. Aims The overall aim of this study was to investigate and compare the use of different approaches to collecting epidemiological data on common symptoms, with a view to developing an evidence-base for the use of these different approaches. Methods A general review of methods used in epidemiological studies and a comprehensive review of methods used in previous epidemiological studies of symptoms were undertaken. The reviews informed the development of symptoms survey. Symptoms survey was conducted to collect epidemiological data on common symptoms in the community. A total of 1179 individuals was approached from four GP practices in the Aberdeen area and sent an invitation letter, information sheet and consent form. Potential participants were requested to select at least two data collection instruments from four options (postal questionnaire, diary, online questionnaire and telephone interview). All the instruments collected the same data (presence of symptoms, severity of symptoms, management of symptoms and quality of life). This allowed a direct comparison of the data collected by the various measures. Those agreeing to participate in the study were sent one of their chosen instruments in phase one of the study and a second (but different) one of their chosen instruments in phase two, which was conducted three weeks later.
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Bingham, Quinten Glen. "Data Collection and Analysis Methods for Two-Zone Temperature and Solute Model Parameter Estimation and Corroboration." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/564.
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Water temperature directly affects biological and chemical processes of fresh water ecosystems. Elevated instream temperatures are commonplace in the Virgin River of southwestern Utah during summer due to a hot desert climate and high water demands that result in low stream flows. This is of concern since the Virgin River is home to two endangered species, the Virgin River Chub (Gila seminuda) and Woundfin (Plagopterus argentissimus). Efforts to model instream temperatures within the Virgin River have been undertaken to help mitigate elevated instream temperatures including the development of a two-zone temperature and solute (TZTS) model. This model was developed to approximate the dominant processes that influence instream temperatures and used both temperature and solute data in parameter estimation. Past model applications highlighted two concerns: (1) how to confidently estimate the high number of parameters and (2) whether Rhodamine WT (RhWT) could be used as a conservative solute tracer within the Virgin River. To begin addressing these issues, spatially representative data were collected to facilitate the physical estimation of two previously calibrated parameters: total average channel width (BTOT) and the fraction of channel width associated with dead zones (β). Methods for analyzing multispectral and thermal infrared imagery were developed to provide estimates of these parameters at different resolutions. Three different TZTS model calibration cases were then evaluated to determine how decreasing the calibrated parameters and increasing the resolution and frequency at which these parameters are estimated improved model predictions and/or decreased parameter uncertainty. While temperature predictions did not change significantly in each of the calibrations, parameter uncertainty was reduced. The concern regarding the use of RhWT resulted in a series of studies to quantify the potential losses of RhWT within this system. A batch sorption study resulted in distribution coefficient values lower than those found in literature. A photodegradation study suggested possible photolysis; however, a dual tracer study conducted within the Virgin River comparing Br- (conservative tracer) with RhWT confirmed that there was insignificant RhWT loss within this system.
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Lezis, Israelsson Jennifer. "What are the minimum requirements of numbers used in a good case study?" Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-32556.
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Barth, Andreas. "Spatially comprehensive data for forestry scenario analysis : consequences of errors and methods to enhance usability /." Umeå : Dept. of Forest Resource Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/2007101.pdf.
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Patel, Pansy. "SIMULATION OF PHOTOCHROMIC COMPOUNDS USING DENSITY FUNCTIONAL THEORY METHODS." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2208.
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This Thesis describes the systematic theoretical study aimed at prediction of the essential properties for the functional organic molecules that belong to diarylethene (DA) family of compounds. Diarylethenes present the distinct ability to change color under the influence of light, known as photochromism. This change is due to ultrafast chemical transition from open to closed ring isomers (photocyclization). It can be used for optical data storage, photoswitching, and other photonic applications. In this work we apply Density Functional Theory methods to predict 6 of the related properties: (i) molecular geometry; (ii) resonant wavelength; (iii) thermal stability; (iv) fatigue resistance; (v) quantum yield and (vi) nanoscale organization of the material. In order to study sensitivity at diode laser wavelengths, we optimized geometry and calculated vertical absorption spectra for a benchmark set of 28 diarylethenes. Bond length alternation (BLA) parameters and maximum absorption wavelengths (λmax) are compared to the data presently available from X-ray diffraction and spectroscopy experiments. We conclude that TD-M05/6-31G*/PCM//M05-2X/6-31G*/PCM level of theory gives the best agreement for both the parameters. For our predictions the root mean square deviation (RMSD) are below 0.014 Ã
for the BLAs and 25 nm for λmax. The polarization functions in the basis set and solvent effects are both important for this agreement. Next we consider thermal stability. Our results suggest that UB3LYP and UM05-2X functionals predict the activation barrier for the cycloreversion reaction within 3-4 kcal/mol from experimental value for a set of 7 photochromic compounds. We also study thermal fatigue, defined as the rate of undesirable photochemical side reactions. In order to predict the kinetics of photochemical fatigue, we investigate the mechanism of by-product formation. It has been established experimentally that the by-product is formed from the closed isomer; however the mechanism was not known. We found that the thermal by-product pathway involves the bicyclohexane (BCH) ring formation as a stable intermediate, while the photochemical by-product formation pathway may involve the methylcyclopentene diradical (MCPD) intermediate. At UM05-2X/6-31G* level, the calculated barrier between the closed form and the BCH intermediate is 51.2 kcal/mol and the barrier between the BCH intermediate and the by-product 16.2 kcal/mol. Next we investigate two theoretical approaches to the prediction of quantum yield (QY) for a set of 14 diarylethene derivatives at the validated M05-2X/6-31G* theory level. These include population of ground-state conformers and location of the pericycylic minimum on the potential energy surface 2-A state. Finally, we investigate the possibility of nanoscale organization of the photochromic material based on DNA template, as an alternative to the amorphous polymer matrix. Here we demonstrate that Molecular Dynamic methods are capable to describe the intercalation of π-conjugated systems between DNA base pairs and accurately reproduced the available photophysical properties of these nanocomposites. In summary, our results are in good agreement with the experimental data for the benchmark set of molecules we conclude that Density Functional Theory methods could be successfully used as an important component of material design strategy in prediction of accurate molecular geometry, absorption spectra, thermal stability of isomers, fatigue resistance, quantum yield of photocyclization and photophysical properties of nanocomposites.Ph.D.
Department of Chemistry
Sciences
Chemistry PhD
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Khalilikhah, Majid. "Traffic Sign Management: Data Integration and Analysis Methods for Mobile LiDAR and Digital Photolog Big Data." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4744.
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This study links traffic sign visibility and legibility to quantify the effects of damage or deterioration on sign retroreflective performance. In addition, this study proposes GIS-based data integration strategies to obtain and extract climate, location, and emission data for in-service traffic signs. The proposed data integration strategy can also be used to assess all transportation infrastructures’ physical condition. Additionally, non-parametric machine learning methods are applied to analyze the combined GIS, Mobile LiDAR imaging, and digital photolog big data. The results are presented to identify the most important factors affecting sign visual condition, to predict traffic sign vandalism that obstructs critical messages to drivers, and to determine factors contributing to the temporary obstruction of the sign messages. The results of data analysis provide insight to inform transportation agencies in the development of sign management plans, to identify traffic signs with a higher likelihood of failure, and to schedule sign replacement.
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Wright, Beverly Darlene. "The impact of data collection methodology and warning labels on adolescents' response factors." restricted, 2005. http://etd.gsu.edu/theses/available/etd-08112005-232149/.
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Thesis (Ph. D.)--Georgia State University, 2005.Title from title screen. Naveen Donthu, committee chair; Kenneth Bernhardt, Sevgin Eroglu, Detmar Straub, committee members. Electronic text (154 p. : ill. (some col.)). Description based on contents viewed Apr. 25, 2007. Includes bibliographical references (p. 139-154).
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Kim, Do Kyun. "Identifying Opinion Leaders by Using Social Network Analysis: A Synthesis of Opinion Leadership Data Collection Methods and Instruments." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1186672135.
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McIntee, Erin. "FORENSIC ANALYSIS OF AUTOMOBILE PAINTS BY ATOMIC AND MOLECULAR SPECTROSCOPIC METHODS AND STATISTICAL DATA ANALYSES." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3131.
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The analysis of 110 automotive paint samples was conducted for the research presented here. Laser-induced breakdown spectroscopy (LIBS) was the central instrument utilized for analysis although scanning electron microscopy / energy dispersive x-ray spectroscopy (SEM/EDS) and Fourier transform infrared spectroscopy – attenuated total reflection (FTIR-ATR) analyses were also performed. Two separate methods of LIBS analysis of samples were used: a cross sectional analysis and a drill down analysis. SEM/EDS analysis focused on the cross section while FTIR-ATR analysis concentrated on the clearcoat layer. Several different data/statistical analyses were evaluated including principal components analysis (PCA), two tailed t-tests based on several different metrics (Hit Quality Index (HQI), Pearson's correlation and Sorenson index), multivariate analysis of variance and receiver operating characteristic (ROC) curves. Full spectrum data analysis from LIBS spectra resulted in 99.7% discrimination between different sample comparisons and 12% between same sample comparisons based on HQI and t-tests. Peak analysis of LIBS spectra resulted in 87.5% discrimination between different sample comparisons and 5% between same sample comparisons based on MANOVA. When combining the results of the FTIR-ATR and SEM/EDS analyses, 88% of the samples could be discriminated.M.S.
Department of Chemistry
Sciences
Forensic Science MS
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O'Connor, Maureen J. Patillo Paul J. "Reengineering human performance and fatigue research through use of physiological monitoring devices, web-based and mobile device data collection methods, and integrated data storage techniques /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FO'Connor.pdf.
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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, December 2003.Thesis advisor(s): Nita L. Miller, Thomas J. Housel. Includes bibliographical references (p. 115-117). Also available online.
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Molnar-Szakacs, Hajnal. "An investigation of adolescents perspectives on belonging to the community and the influence of data collection methods on information." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0019/MQ57313.pdf.
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Fürst, Elmar Wilhelm, Peter Oberhofer, Christian Vogelauer, Rudolf Bauer, and David Martin Herold. "Innovative methods in European road freight transport statistics: A pilot study." Tayler and Francis, 2019. http://dx.doi.org/10.1080/09720510.2019.
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By using innovative methods, such as the automated transfer of corporate electronic data to National Statistical Institutions, official transport data can be significantly improved in terms of reliability, costs and the burden on respondents. In this paper, we show that the automated compilation of statistical reports is possible and feasible. Based on previous findings, a new method and tool were developed in cooperation with two business partners from the logistics sector in Austria. The results show that the prototype could successfully be implemented at the partner companies. Improved data quality can lead to more reliable analyses in various fields. Compared to actual volumes of investments into transport, the costs of transport statistics are limited. By using the new and innovative data collection techniques, these costs can even be reduced in the long run; at the same time, the risk of bad investments and wrong decisions caused by analyses relying on poor data quality can be reduced. This results in a substantial value for business, research, the economy and the society.
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Patillo, Paul L., and Maureen J. O'Connor. "Reengineering human performance and fatigue research through use of physiological monitoring devices, web-based and mobile device data collection methods, and integrated data storage techniques." Thesis, Monterey, California. Naval Postgraduate School, 2003. http://hdl.handle.net/10945/6156.
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Approved for public release; distribution is unlimitedIn the field of human research, particularly in operational environments, data collection techniques are difficult. Researchers often focus their efforts on the data analysis and overlook the shortcomings of their data collection and storage methodologies. In order to demonstrate effective data collection and storage methodology in a representative human research process, the process used by human fatigue and performance researchers at the Human Systems Integration Lab at Naval Postgraduate School (NPS) served as a Proof of Concept. Most recent studies conducted at NPS provided a model of the current process. The Knowledge Value Added (KVA) methodology was used as a tool of comparison of the current process to the reengineered process. Information technologies including wireless physiological monitoring devices, web-based and mobile device data collection methods, and integrated data storage techniques were incorporated in the reengineering effort. The data storage process included the design of a standard relational database format allowing research teams to easily access their data. This repository also enables data to be archived for future use (e.g., meta-analyses). To demonstrate the reengineered process in an operational environment, a field fatigue study was conducted at the Naval Officer Indoctrination School (OIS) in Newport, Rhode Island.
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Wang, Kaijun. "Graph-based Modern Nonparametrics For High-dimensional Data." Diss., Temple University Libraries, 2019. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/578840.
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StatisticsPh.D.
Developing nonparametric statistical methods and inference procedures for high-dimensional large data have been a challenging frontier problem of statistics. To attack this problem, in recent years, a clear rising trend has been observed with a radically different viewpoint--``Graph-based Nonparametrics," which is the main research focus of this dissertation. The basic idea consists of two steps: (i) representation step: code the given data using graphs, (ii) analysis step: apply statistical methods on the graph-transformed problem to systematically tackle various types of data structures. Under this general framework, this dissertation develops two major research directions. Chapter 2—based on Mukhopadhyay and Wang (2019a)—introduces a new nonparametric method for high-dimensional k-sample comparison problem that is distribution-free, robust, and continues to work even when the dimension of the data is larger than the sample size. The proposed theory is based on modern LP-nonparametrics tools and unexplored connections with spectral graph theory. The key is to construct a specially-designed weighted graph from the data and to reformulate the k-sample problem into a community detection problem. The procedure is shown to possess various desirable properties along with a characteristic exploratory flavor that has practical consequences. The numerical examples show surprisingly well performance of our method under a broad range of realistic situations. Chapter 3—based on Mukhopadhyay and Wang (2019b)—revisits some foundational questions about network modeling that are still unsolved. In particular, we present unified statistical theory of the fundamental spectral graph methods (e.g., Laplacian, Modularity, Diffusion map, regularized Laplacian, Google PageRank model), which are often viewed as spectral heuristic-based empirical mystery facts. Despite half a century of research, this question has been one of the most formidable open issues, if not the core problem in modern network science. Our approach integrates modern nonparametric statistics, mathematical approximation theory (of integral equations), and computational harmonic analysis in a novel way to develop a theory that unifies and generalizes the existing paradigm. From a practical standpoint, it is shown that this perspective can provide adequate guidance for designing next-generation computational tools for large-scale problems. As an example, we have described the high-dimensional change-point detection problem. Chapter 4 discusses some further extensions and application of our methodologies to regularized spectral clustering and spatial graph regression problems. The dissertation concludes with the a discussion of two important areas of future studies.
Temple University--Theses
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Catanzaro, Wesley M. "THE DEVELOPMENT OF AN ELECTRONIC DATA COLLECTION TOOL AND COMPARISON OF THE ELECTRONIC AND MANUAL METHODS OF LAND USE INVENTORY." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1013.
Full textAbstract:
An important component of Planning Information Systems for municipal planning agencies is a comprehensive land use inventory that provides information on the location, distribution, and intensity of land uses throughout a community. This data is a necessary prerequisite for the informed creation of planning documents such as General Plans, Specific Plans, Housing Inventories, and Climate Action Plans. Beyond location, distribution and intensity of land uses, planners may also wish to incorporate additional information at the parcel level, such as the number of housing or commercial units, building condition, and/or access and connectivity to adjacent streets. Because some of this information is best observed in the field, agencies require methods of collecting this data that will ensure data precision, accuracy, and consistency, while minimizing data collection and processing time. Electronic data collection tools that are compatible with Geographic Information Systems provide a potential solution that can facilitate these desired data collection parameters. This research illustrates the development of an electronic data collection tool that planning agencies may utilize within various planning efforts, and compares the efficiency of the tool to traditional ‘pen-and-paper’ data collection methods in terms of time savings. It is recommended that planning agencies widely adopt and implement electronic tools for land use data collection, for the demonstrated benefits related to data consistency and reduced data collection time in the field.
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van, Velthoven Helena Maria Marcella Theodora. "Mobile phone text messaging data collection on care-seeking for childhood diarrhoea and pneumonia in rural China : a mixed methods study." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/27251.
Full textAbstract:
Background. Health information systems are inadequate in many countries. For childhood diarrhoea and pneumonia specifically, the leading infectious causes of child mortality worldwide, current data collection methods are not providing sufficient information for surveillance. The collection of health data could be greatly assisted with the use of mobile devices (mHealth). Mobile phone text messaging is widely used, but its potential for health data collection has not yet been realised. Aim. To explore the application of mHealth-based collection of information relevant to childhood diarrhoea and pneumonia in rural China. Methods. A mixed methods approach was used: (i) a survey and semi-structured interviews to assess the usage of mobile phones by caregivers of young children; (ii) cognitive interviews, usability testing and a cluster randomised cross-over study to determine the validity of a text messaging survey on care-seeking for childhood diarrhoea and pneumonia; and (iii) researchers' observations and structured interviews with participants of the cross-over study to evaluate factors influencing participation in mHealth-based studies. Results. Many of the 1854 survey participants (1620; 87.4%) used mobile phones. Of 1014 participants in the cross-over study, 662 (65.3%) responded to the first text message. Of 651 participants willing to participate, 356 (54.7%) completed the text messaging survey. Overall, text message data were moderately to substantially equivalent to face-to-face data. The text messaging survey was acceptable to parents, but grandparents were often unable to use text messages. Among many factors influencing participation were trust, perceived usefulness and ease of use. Conclusions. Text messaging can be applied to collect data on care-seeking for childhood diarrhoea and pneumonia in rural China, but several questions remain, including how to improve accuracy and response rates. Further work needs to advance innovative mHealth-based data collection methods that can improve health surveillance, enhance implementation of appropriate interventions and ultimately save children's lives.
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Bauzá, Amengual Maria de Lluc. "La contracepció hormonal d'urgència (CHU) des d'un punt de vista de la salut pública." Doctoral thesis, Universitat de les Illes Balears, 2018. http://hdl.handle.net/10803/665572.
Full textAbstract:
[cat] La contracepció d’emergència (CE) s’entén com una segona oportunitat per tal de reduir el risc
d’un embaràs no desitjat després d’una relació coital sense protecció o després que l’anticonceptiu
habitual hagi fallat. A l’Estat espanyol, es calcula que un 35% dels embarassos no són
desitjats i el percentatge d’avortaments voluntaris suposa el 17% dels embarassos i el 50% en el
cas de les dones menors de 25 anys.
Els governs dels diferents països occidentals i també el govern de l’Estat espanyol, com una
de les estratègies per tal de reduir la taxa d’embarassos no desitjats, han regulat l’accés a la
CE. Aquesta regulació s’ha duit a terme mitjançant la dispensació d’aquesta medicació amb
recepta mèdica, amb la lliure dispensació a través de les oficines de farmàcia, o amb la prescripció
per avançat.
Mitjançant aquesta tesi doctoral es pretén conèixer el perfil de les usuàries de la CE a l’Estat
espanyol, explorar coneixements, actituds i creences de les dones de 15-25 anys sobre la contracepció
hormonal d’urgència (CHU) i establir la relació entre l’ús de la CHU durant el darrer any
i les conductes de risc en població universitària.
Es va realitzar en una primera fase, una revisió sistemàtica dels estudis realitzats a l’àmbit
estatal sobre el perfil de les usuàries de la PPC residents a l’Estat. En segon terme un estudi de
disseny mixt exploratori seqüencial. En la primera part del disseny mixt i mitjançant un estudi
qualitatiu amb entrevistes en profunditat, s’analitzaren els discursos de les dones joves entorn
de la CE; en la segona part d’aquest treball es dugué a terme un estudi descriptiu transversal
mitjançant qüestionari autoadministrat.
De la revisió sistemàtica es mostra un perfil de les usuàries de la CE a l’Estat espanyol: es tracta
d’una dona jove i fadrina que acudeix als serveis d’urgències els caps de setmana dins les 48
hores posteriors al coit desprotegit per ruptura del preservatiu. Si més no, l’extensió i context
dels estudis realitzats, així com la falta de grups de comparació amb dones que no l’han utilitzada,
ha limitat el perfil obtingut.
Les dones entrevistades coneixen la CE encara que no l’hagin utilitzat i tenen una informació
correcta sobre quan s’ha d’usar. Les dones conceben la CE com un recurs positiu que prevé un
embaràs no desitjat i/o un avortament. La falta de coneixements sobre el mecanisme d’acció de
la CHU no impedeix el seu bon ús, però pot ser la raó per la que algunes dones creuen que té
un efecte abortiu. Entre els discursos de les dones s’identifiquen barreres que dificulten la utilització
de la CE com son els discursos moralistes d’alguns professionals que dispensen el fàrmac,
raons morals o religioses de les usuàries, i la preocupació sobre els efectes secundaris. Homes i
dones universitaris que han utilitzat la PPC comparteixen alguns factors relacionats amb aquest
ús, com són el consum de drogues il·legals i el tenir relacions sexuals freqüents, respecte als que
no l’han utilitzada. En les dones universitàries, aquest ús també s’associa amb la seva afiliació
política, concretament amb no definir-se ideològicament com a de centre, i també amb haver
iniciat les seves relacions coitals abans dels 16 anys.
Es necessari dissenyar estratègies de prevenció d’embarassos no desitjats i avortaments, no
solament des de la perspectiva de regulació de la PPC, sinó que existeix la necessitat de dur a
terme polítiques de promoció de la salut afectivo-sexual dirigides a la població jove, incloent-hi
el tractament del consum d’alcohol i les drogues il·legals.[spa] La contracepción de emergencia (CE) se entiende como una segunda oportunidad para reducir el riesgo de un embarazo no deseado después de una relación coital sin protección o después que la anticoncepción habitual haya fallado. En el Estado español, se estima que un 35% de los embarazos no son deseados y el porcentaje de abortos voluntarios supone el 17% de los embarazos y el 50% en el caso de las mujeres menores de 25 años. Los gobiernos de los diferentes países occidentales y también el gobierno del Estado español, como una de las estrategias para reducir la tasa de embarazos no deseados, han regulado el acceso a la CE. Esta regulación se ha llevado a cabo mediante la dispensación de esta medicación con receta médica, con la libre dispensación a través de las oficinas de farmacia, o con la prescripción por adelantado. Mediante esta tesis doctoral se pretende conocer el perfil de las usuarias de la CE en el Estado español, explorar conocimientos, actitudes y creencias de las mujeres de 15-25 años sobre la contracepción hormonal de urgencia (CHU) y establecer la relación entre el uso de la CHU durante el último año y las conductas de riesgo en población universitaria. En una primera fase se realizó una revisión sistemática de los estudios realizados en el ámbito estatal, sobre el perfil de las usuarias de la PPC en el Estado. En segundo lugar, un estudio de diseño mixto exploratorio secuencial. En la primera parte del diseño mixto y mediante un estudio cualitativo con entrevistas en profundidad, se analizaron los discursos de las mujeres jóvenes entorno a la CE; en la segunda parte de este trabajo se realizó un estudio descriptivo transversal mediante cuestionario autoadministrado. De la revisión sistemática se muestra un perfil de las usuarias de la CE en el Estado español como el de una mujer joven y soltera que acude a los servicios de urgencias los fines de semana dentro de las 48 horas posteriores al coito desprotegido por rotura del preservativo. La extensión y el contexto de los estudios realizados, así como la falta de grupos de comparación con las mujeres que no han utilizado CE, ha limitado el perfil obtenido. Las mujeres entrevistadas conocen la CE aunque no la hayan utilizado nunca y tienen una información correcta sobre como debe utilizarse. Las mujeres conciben la CE como un recurso positivo que previene un embarazo no deseado y/o un aborto. La falta de conocimientos sobre el mecanismo de acción de la CHU no impide su buen uso, pero puede ser la razón por la que algunas mujeres crean que tiene un efecto abortivo. Entre los discursos de las mujeres se identifican barreras que dificultan la utilización de la CE como son los discursos moralistas de algunos profesionales que dispensan el fármaco, razones morales o religiosas de las usuarias, y la preocupación sobre los efectos secundarios. Hombres y mujeres universitarios que han utilizado la PPC comparten algunos factores relacionados con este uso, como son el consumo de drogas ilegales y el tener relaciones sexuales frecuentes respecto a los que no la han utilizado. En las mujeres universitarias, éste uso también se asocia con su filiación política, concretamente con no definirse ideológicamente de centro, y también con haber iniciado sus relaciones coitales antes de los 16 años. Es necesario diseñar estrategias de prevención de embarazos no deseados y abortos, no solamente desde la perspectiva de regulación de la PPC, sino que existe la necesidad de llevar a cabo políticas de promoción de la salud afectivo-sexual dirigidas a la población joven, incluyendo el tratamiento del consumo de alcohol y de drogas ilegales.
[eng] Emergency contraception (EC) is considered a second opportunity to reduce the risk of an unwanted pregnancy after unprotected intercourse or after possible failure of the usual contraceptive. In the Spanish State, it is calculated that around 35% of pregnancies are unwanted and the percentage of voluntary abortions makes up 17% of pregnancies and 50% in the case of women under 25 years old. The governments in various western countries, including the government of the Spanish State, have regulated access to EC as one of the strategies to reduce the number of unwanted pregnancies. Regulation has meant requiring a doctor’s prescription for this medication, dispensing it over the counter in a pharmacy, or prescribing an advance supply. This doctoral thesis aims at identifying the profile of users of EC in the Spanish State, exploring the knowledge, attitudes and beliefs of women between 15 and 25 regarding emergency hormonal contraception (EHC), and establishing the relationship between the use of EHC during the last year and risk behaviour among the university population. In the first phase, we carried out a systematic revision of state-wide studies on the profile of PCP users residing in Spain. Secondly was a mixed-design sequential exploratory study. In the first part of the mixed design, using a qualitative method with in-depth interviews, we analyzed what young women had to say about EC; in the second part we carried out a transversal descriptive study using a self-administered questionnaire. The systematic revision revealed the profile of EC users in the Spanish State: a young, single woman who goes to the emergency services at the weekend within 48 hours of unprotected intercourse due to condom breakage. In any case, the extent and the context of the studies carried out, along with the lack of comparison groups with women who have not used it, set limits to the profile obtained. The women interviewed know about EC even if they have not used it and are properly informed about when it is to be used. Women consider EC a positive resource to prevent an unwanted pregnancy and/or abortion. The lack of knowledge about the mechanism by which EHC works does not stop them from making good use of it, but it may be the reason some women believe it has an abortive effect. In what the women had to say, we identified barriers that make the use of EC difficult, such as the moralistic speeches of some professionals who dispense the drug, the users’ religious or moral beliefs, and worries about side effects. University men and women who have used PCP share some related factors, such as the consumption of illegal drugs and having frequent sexual relations, in comparison to those who have not used it. Among university women, use is also associated with political affiliation, specifically with not defining themselves as centrist, and also with having begun to have sexual intercourse before the age of 16. It is necessary to design strategies to prevent unwanted pregnancies and abortions, not only from the point of view of regulating PCP, but there is also a need to implement policies promoting affective-sexual health directed at the young population, including counselling about the consumption of alcohol and illegal drugs.
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O'Callaghan, M. "Vegetation and land-use data collection methods for environmental management purposes, with particular reference to the rivers entering False Bay, Cape, South Africa." Master's thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/22054.
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The increasing population and urbanization occurring in South Africa is threatening the survival of many environments, particularly those in close proximity to urban areas. Present legislation does not adequately protect the environment, and methods are needed to collect data to guide the development of conservation-orientated management and developmental policies. These data should provide a general description of the environment, Indicating sensitive areas, while taking physical, socio-economic and natural features into account. To be most meaningful, these data should be stored in a survey information system which is accessible to any person or institution involved in management or developmental policy formulation. Chapter 2 describes some of the components of such a system. Chapter 3 discusses the data collection component of the survey Information system. The use of vegetation features to describe the natural environment, and the use of land-use features for the socio-economic environment, are emphasized. Numerous methods are available to collect vegetation and land-use data, but for management purposes the methods should be elementary enough to be used by non-specialists while still supplying meaningful data. Aerial photography can be applied to vegetation and land-use studies. However, numerous inaccuracies can occur when using aerial photography as a source of data and Chapter 3 also discusses some of these limitations. The study area used to test proposed methods of collecting vegetation and land-use data for a management information system are described in Chapter 4. The study area consists of eleven study sites, each at a river mouth on the False Bay coast.
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Gottberg, Kristina. "Studies of people living with multiple sclerosis in Stockholm county : evaluation of methods for data collection and aspects of functining and use of health care services /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-784-7/.
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Panaccione, Kathleen Marie. "The Efficacy and Feasibility of a Context-Specific Autism Behavior Rating Tool with Real Time Data Collection Methods from the Perspectives of Clinicians, Educators, and Parents." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3293.
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The incidence of autism has increased tremendously over the past 20 years; however, the tools used for diagnosis and educational identification have largely remained the same. Diagnostic and educational decisions are based on observations and interactions to identify hallmark skill deficits associated with autism. Research demonstrates behaviors are affected by the environment, and real-time data collection is more accurate than reflective methods.
The problem is current autism diagnostic and educational identification tools lack essential features. The Autism Diagnostic Observation Schedule (ADOS), considered the gold standard, relies on contrived settings, and lacks an observational comparison to same aged peers. Autism behavior rating scales, rely on reflective data collection, and are not context specific.
The purpose of this study was to gain feedback from stakeholders (clinicians, educators, parents) about the perceived efficacy and feasibility of a context-specific autism behavior rating tool with real time data collection methods for diagnosis and educational planning. Results showed stakeholders confirmed the perceived efficacy of the context-specific tool for improved accuracy for diagnosis, more specific information for educational planning, and increased understanding for parents to support their child's learning needs.
Even though the tool was useful, stakeholder feedback also indicated the tool lacked feasibility for teacher use and may be better suited for administration by school psychologists or other trained professionals. The increased specificity and accuracy provided by a context-specific autism behavior rating tool has the potential to affect the future of autism evaluations and educational planning; thereby influencing the future life function of individuals with autism.
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Lanman, Jeremy Thomas. "A governance reference model for service-oriented architecture-based common data initialization a case study of military simulation federation systems." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4516.
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Military simulation and command and control federations have become large, complex distributed systems that integrate with a variety of legacy and current simulations, and real command and control systems locally as well as globally. As these systems continue to become increasingly more complex so does the data that initializes them. This increased complexity has introduced a major problem in data initialization coordination which has been handled by many organizations in various ways. Service-oriented architecture (SOA) solutions have been introduced to promote easier data interoperability through the use of standards-based reusable services and common infrastructure. However, current SOA-based solutions do not incorporate formal governance techniques to drive the architecture in providing reliable, consistent, and timely information exchange. This dissertation identifies the need to establish governance for common data initialization service development oversight, presents current research and applicable solutions that address some aspects of SOA-based federation data service governance, and proposes a governance reference model for development of SOA-based common data initialization services in military simulation and command and control federations.ID: 029094323; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (Ph.D.)--University of Central Florida, 2010.; Includes bibliographical references (p. 253-261).
Ph.D.
Doctorate
Department of Modeling and Simulation
Engineering and Computer Science
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Nduku, Nyaniso Prudent. "Development of methods for distribution network power quality variation monitoring." Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/1144.
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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2009The purpose of this project is to develop methods for distribution network power quality' variations monitoring. Power quality (PO) has become a significant issue for both power suppliers and customers. There have been important changes in power system regarding to power quality requirements. "Power quality" is the combination at voltage quality and current quality. The main research problem of the project is to investigate the power quality of a distribution network by selection of proper measurement, applying and developing the existing classic and modern signal conditioning methods for power disturbance's parameters extracting and monitoring. The research objectives are: To study the standard lEC 61000-4-30 requirements. to investigate the common couplings in the distribution network. To identity the points for measurement, to develop MySQL database for the data from the measurement and to develop MATLAB software tor simulation of the network To develop methods based on Fourier transforms for estimation of the parameters of the disturbances. To develop software for the methods implementation, The influence of different loads on power quality disturbances are considered in the distribution network. Points on the network and meters according to the lEC power quality standards are investigated and applied for the CPUT Bellville campus distribution network. The implementation of the power quality monitoring for the CPUT Bellville campus helps the quality of power supply to be improved and the used power to be reduced. MATLAB programs to communicate with the database and calculate the disturbances and power quality parameters are developed.
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Rossiter, John C. "A Comparison of Social Desirability Bias among Four Widely Used Methods of Data Collection as Measured by the Impression Management Subscale of the Balance Inventory of Desirable Responding." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1240263500.
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Maraška, Artūras. "Paskirstytų duomenų surinkimo ir apdorojimo technologijos." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090831_153918-62754.
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Duomenų „surinkimas“ – tai procesai, skirti tam tikros informacijos, apie dominančią objektinę sritį, kaupimui. Tokių duomenų „apdorojimo“ sąvoka apima jų filtravimą, priežiūrą, saugojimą, analizę ir pan. Kriterijai pagal kuriuos duomenys yra renkami, taip pat metodika ir filtravimas juos padaro specifiniais arba „paskirstytais“. Paskirstytų duomenų surinkimo ir apdorojimo sąvoka yra gana plati ir apima ne tik elementariausius Web klausimynus ar testus, bet ir dideles sistemas, skirtas analizuoti ir apdoroti struktūrizuoto (pvz.: XML) duomenų srauto informaciją, prireikus ją konvertuoti, saugoti ir adaptuoti.Term WIKI defines ideas and basis for data collection and management, necessary and mandatory methods required to ensure quality of collectible data. The purpose of this master work is analysis of existing solutions of data collecting and analysis systems in order to create a new unique WIKI community based system for price and other information (related to products on the market) analysis. System target – build up user manageable knowledge base for recognition of changes in the market, fast, easy and cheapest products information withdraw. It gives an overview of the best data collection approaches structure, techniques and logic, data analysis and collection methods (based on the system target), also proposes created model and defines means and tools, for model creation and realization.
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Langhammer, Kristina. "Employee selection : Mechanisms behind practitioners’ preference for hiring practices." Doctoral thesis, Stockholms universitet, Psykologiska institutionen, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-95890.
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Despite the great advances science has made in developing selection decision aids practitioners’ generally remain reluctant to adopt them. This phenomenon is considered today one of the greatest gaps in industrial, work and organizational psychology. This thesis adopts a psychological approach to practitioners’ resistance toward hiring procedures with high predictive validity of work performance. Consequently, three specific research questions were examined, two of which highlighted aspects of self-regulation, and one focused on agency relation in order to study outcomes in terms of actual use of hiring procedures and intention to change hiring procedures. The present thesis comprises three studies. Questionnaire data is used in two studies (Study I and II) to study how 1) prototype beliefs and ability to evaluate the quality of own performance is related to use of selection decision methods; and also how 2) behavioral intention to change hiring practice is related to self-efficacy beliefs, causal attribution and past behavior. Data collected with semi-structured interviews is used in Study III in order to study practitioners’ experiences in collaborative contexts in employee selection. Study I found that prototype beliefs and task quality ambiguity perceptions varied across various hiring practices. The results from Study II showed that self-efficacy beliefs, external attributions of success and internal attributions of failure were related to intention to change hiring practices. Study III highlighted the prevalence of separate self-interests over more general organizational interests in the agentic relation between practitioners. In conclusion, the present thesis has implication for theory as well as practice when it concludes that conscious steered cognitive mechanisms are important for understanding practitioners’ resistance towards high standardized hiring practices.At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 1: Manuscript. Paper 3: Manuscript.
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Bernhardt, Melanie. "Male adolescents' sense of self after reintegration into schools in the Western Cape / Melanie Bernhardt." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8792.
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This study focuses on the sense of self of adolescents when they are reintegrated into schools after dropping out. Dropout is a global phenomenon and yet very little research has been undertaken regarding reintegration and especially the successful reintegration of adolescents and how this reintegration affects their sense of self. The goal of the study was to determine how reintegrated adolescents experience their reintegration into schools, and how this has affected them in terms of how they see themselves. The research hoped to discover what personal difficulties the adolescents had overcome in their return to school as well as the motivating factors that would keep the reintegrated adolescents in school. The research was conducted from a phenomenological Gestalt, field approach and followed a qualitative research design within an interpretivist framework. This research design allows the participants to give meaning to their own experiences. A total of six adolescent boys between the ages of 13 and 17 were purposefully selected from the informal settlement of Groenheuwel, Paarl in the Western Cape. Five of the six adolescents had been reintegrated into schools in 2011 and 2012 by the Khula Development Group. One adolescent participant was a peer educator and although he had never dropped out, he contributed meaningful data on how reintegrated adolescents are experienced as seen from his role as a peer educator. Other participants in the research included the Headmaster of Groenheuwel Primary School and the President and Project leader of the Khula Development Group. The qualitative data were collected in the form of individual open-ended interviews with the adolescents, project leader and headmaster. The researcher’s objective was to understand and interpret the meanings the participants gave to their own experiences, which was further done through observation, member checking, and a reflective group discussion including the application of an art technique. The interviews were recorded on DVD. The reflective group discussion was held with the adolescent participants two weeks after the individual interviews. The group discussion included an art technique, where the adolescents were asked to create their experiences of their return to school in clay. This session was also recorded on DVD. Recordings were transcribed by the researcher to ascertain certain emerging themes and categories. Thematic data analysis was used to transform the transcribed data into meaningful information. The principles and strategies for enhancing the trustworthiness of the data were done through crystallisation. The findings of the study revealed the unrealistic expectations with which the adolescents view their sense of self.Thesis (MA (Psychology))--North-West University, Potchefstroom Campus, 2013
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Jakupovic, Edin. "Alternative Information Gathering on Mobile Devices." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210712.
Full textAbstract:
Searching and gathering information about specific topics is a time wasting, but vital practise. With the continuous growth and surpassing of desktop devices, the mobile market is becoming a more important area to consider. Due to the portability of mobile devices, certain tasks are more difficult to perform, compared to on a desktop device. Searching for information online is generally slower on mobile devices than on desktop devices, even though the majority of searches are performed on mobile devices. The largest challenges with searching for information online using mobile devices, are the smaller screen sizes, and the time spent jumping between sources and search results in a browser. These challenges could be solved by using an application that focuses on the relevancy of search results, summarizes the content of them, and presents them on a single screen. The aim of this study was to find an alternative data gathering method with a faster and simpler searching experience. This data gathering method was able to quickly find and gather data requested through a search term by a user. The data was then analyzed and presented to the user in a summarized form, to eliminate the need to visit the source of the content. A survey was performed by having a smaller target group of users answer a questionnaire. The results showed that the method was quick, results were often relevant, and the summaries reduced the need to visit the source page. But while the method had potential for future development, it is hindered by ethical issues related to the use of web scrapers.Sökning och insamling av information om specifika ämnen är en tidskrävande, men nödvändig praxis. Med den kontinuerliga tillväxten som gått förbi stationära enheters andel, blir mobilmarknaden ett viktigt område att överväga. Med tanke på rörligheten av bärbara enheter, så blir vissa uppgifter svårare att utföra, jämfört med på stationära enheter. Att söka efter information på Internet är generellt långsammare på mobila enheter än på stationära. De största utmaningarna med att söka efter information på Internet med mobila enheter, är de mindre skärmstorlekarna, och tiden spenderad på att ta sig mellan källor och sökresultat i en webbläsare. Dessa utmaningar kan lösas genom att använda en applikation som fokuserar på relevanta sökresultat och sammanfattar innehållet av dem, samt presenterar dem på en enda vy. Syftet med denna studie är att hitta en alternativ datainsamlingsmetod för attskapa en snabbare och enklare sökupplevelse. Denna datainsamlingsmetod kommer snabbt att kunna hitta och samla in data som begärts via en sökterm av en användare. Därefter analyseras och presenteras data för användaren i en sammanfattad form för att eliminera behovet av att besöka innehållets källa. En undersökning utfördes genom att en mindre målgrupp av användare svarade på ett formulär av frågor. Resultaten visade att metoden var snabb, resultaten var ofta relevanta och sammanfattningarna minskade behovet av att besöka källsidan. Men medan metoden hade potential för framtida utveckling, hindras det av de etiska problemen som associeras med användningen av web scrapers.
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Calliyeris, Vasiliki Evangelou. "Métodos de coleta de dados: análise comparativa dos perfis dos respondentes e dos resultados obtidos via internet e via presencial face a face." Pontifícia Universidade Católica de São Paulo, 2012. https://tede2.pucsp.br/handle/handle/1032.
Full textAbstract:
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Previous issue date: 2012-05-23This work has as objective analyze comparatively the respondents profile and the results obtained by two different data collection approaches: by internet (online) and face to face at home (offline). The criteria selected for this comparison were the response return rate for both methods, the answers quality obtained on the attributes evaluation questions and the results on habits and attitudes of the selected samples. The first two chosen criteria refer to a topic very discussed in the academy that is the relationship between the respondent and the electronic data collection method, on which is believed to be uncontrolled, causing low access rate and also compromising the quality of data collected. The last criteria selected refers to another theme approached by academics which is the respondents profile that both data collection methods reach, which is believed to be distinctive and in consequence, provides differences in consumption behavior of the approached targets. To reach the proposed objectives, initially some in depth exploratory interviews were conducted with executives of research institutes acting in Brazil, aiming to understand their point of view regarding the capability of the online research method. Subsequently a quantitative study was conducted through two data collection methods, electronic by internet and face to face at home, with two different samples, which results were compared. The hypotheses were confirmed once there were differences in answers return rates, bias on attributes evaluation caused by one of the targets and also differences in both social-demographic profiles that reflected in discriminant consumption habits and attitudes. This work is justified in a way that it presents a current and controversial subject in the academy and in the business world, which focus is debate the replace of the traditional date collection methods by the contemporary one by internet, or even its complementarity, in a moment that the virtual network is increasing its penetration in the relationship company-consumer
O presente trabalho tem por objetivo analisar comparativamente o perfil dos respondentes e os resultados advindos de duas abordagens distintas de coleta de dados: via internet (online) e via presencial face a face domiciliar (offline). Os critérios selecionados para essa comparação foram o índice de retorno das respostas de ambos os métodos, a qualidade das respostas obtidas nas baterias de avaliação de atributos e os resultados de comportamento e atitudes das amostras selecionadas. Os dois primeiros critérios escolhidos referem-se a um tema muito discutido na academia que é a relação do respondente com o método de coleta eletrônico, sobre a qual acredita-se não haver controle, o que pode ocasionar um baixo índice de adesão e também comprometer a qualidade dos dados coletados. O último critério selecionado refere-se a outro tema muito debatido que é o perfil de respondente que ambos os métodos de coleta alcançam, que acredita-se ser distinto e, em consequência, reproduz diferenças de comportamento de consumo e de atitudes entre os dois públicos abordados. Para se alcançar os objetivos propostos, em primeiro lugar foram realizadas entrevistas em profundidade exploratórias com executivos de institutos de pesquisa atuantes no Brasil, com o intuito de se entender seus pontos de vista em relação à aplicabilidade do método de coleta online. Posteriormente, conduziu-se um estudo quantitativo por meio de dois métodos de coleta, eletrônico via internet e presencial face a face, com duas amostras distintas, cujos resultados foram comparados. As hipóteses levantadas foram confirmadas, uma vez que houve divergência entre os índices de retorno das respostas obtidas, viés no preenchimento das baterias de atributos por um dos públicos, e também diferenças no perfil sociodemográfico das amostras abordadas, que refletem padrões de consumo e de comportamento distintos entre ambas. Este trabalho justifica-se na medida em que apresenta um tema atual e controverso no ambiente acadêmico e corporativo, cujo foco é debater a substituição dos métodos de coleta tradicionais pelo método contemporâneo via internet, ou sua complementaridade, em um momento no qual a rede virtual de comunicação ganha cada vez mais espaço na relação empresa-cliente
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Xiong, Liang. "On Learning from Collective Data." Research Showcase @ CMU, 2013. http://repository.cmu.edu/dissertations/560.
Full textAbstract:
In many machine learning problems and application domains, the data are naturally organized by groups. For example, a video sequence is a group of images, an image is a group of patches, a document is a group of paragraphs/words, and a community is a group of people. We call them the collective data. In this thesis, we study how and what we can learn from collective data. Usually, machine learning focuses on individual objects, each of which is described by a feature vector and studied as a point in some metric space. When approaching collective data, researchers often reduce the groups into vectors to which traditional methods can be applied. We, on the other hand, will try to develop machine learning methods that respect the collective nature of data and learn from them directly. Several different approaches were taken to address this learning problem. When the groups consist of unordered discrete data points, it can naturally be characterized by its sufficient statistics – the histogram. For this case we develop efficient methods to address the outliers and temporal effects in the data based on matrix and tensor factorization methods. To learn from groups that contain multi-dimensional real-valued vectors, we develop both generative methods based on hierarchical probabilistic models and discriminative methods using group kernels based on new divergence estimators. With these tools, we can accomplish various tasks such as classification, regression, clustering, anomaly detection, and dimensionality reduction on collective data. We further consider the practical side of the divergence based algorithms. To reduce their time and space requirements, we evaluate and find methods that can effectively reduce the size of the groups with little impact on the accuracy. We also proposed the conditional divergence along with an efficient estimator in order to correct the sampling biases that might be present in the data. Finally, we develop methods to learn in cases where some divergences are missing, caused by either insufficient computational resources or extreme sampling biases. In addition to designing new learning methods, we will use them to help the scientific discovery process. In our collaboration with astronomers and physicists, we see that the new techniques can indeed help scientists make the best of data.
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Gonzalez, Sara (Sara H. ). "A framework for collecting data : revising sensor synchronization methods." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112589.
Full textAbstract:
Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (page 29).
Data collection is frequently carried out in research, as well as in industry for purposes ranging from quality control to assessing system limits. However, several complications may arise to hinder optimal data collection and analysis, including synchronization of different data types from a variety of sensors. A benchtop model was designed with the primary goal of understanding human-spacesuit interactions through the collection and analysis of force, pressure, and internal kinematics data. This thesis addresses shortcomings in the setup that led to difficulty in data analysis and synchronization and presents a revised framework for collecting these data. A system was designed such that the start of each trial of data collection can be synced across the three types of sensors: a load cell, a pressure mat, and inertial measurement units.
by Sara Gonzalez.
S.B.
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Oztoprak, Aydin. "A Method For Supporting Data Collection In Userresearch Studies At Domestic Environments." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613560/index.pdf.
Full textAbstract:
This thesis analyzes data collection tools and methods in domestic environments for smart
product development processes. The aim of the study is to create a method for supporting
data collection studies in user research of smart products at domestic environments. The
study examines the utilization of information and communication technologies in
ethnographic data collection methods at domestic environments with a qualitative
approach. Two case studies are conducted to understand and analyze the effects of
custom designed data collection tools in user research studies conducted at domestic
environments. The results of the study revealed that utilization of data collection
equipment and methods that are customized to the characteristics of aims and objectives
of user research studies, product characteristic and study participants&rsquoown environment might lead to the possibility to increase number of study participants and decrease researchers&rsquo
presence in domestic environments. Additionally, it was found that, sensor kits and internal device logs are capable of supporting user research studies for the evaluation of products, however due to technical complexity and unpredictable contextual factors, triangulation of data collection methods and redundancy of data collection equipment are necessary.
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Hajjouji, Hennius Samira. ""Vi kan skriva förargument och sedan motargument" : Om deliberativa samtal i undervisning i svenska som andraspråk på högskolenivå." Doctoral thesis, Mälardalens högskola, Utbildningsvetenskap och Matematik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26470.
Full textAbstract:
In the light of the twofold mission of Swedish schools, that is to say enabling pupils to develop both subject knowledge and a democratic attitude, the purpose of this thesis is to investigate to what extent adult higher education students from different language and social backgrounds, studying Swedish as a second language, are able to carry out joint writing assignments with the aid of deliberative discourse, and to what extent they thereby also develop a deliberative attitude. The twofold mission of education applies to them too. While there already exists a certain amount of research into deliberative discourse relating to education in schools, the perspective of higher education didactics in this research is still lacking. The present study is to be viewed as a first contribution to this research. The theoretical starting point of this study includes previous research into deliberative discourse by further developing an existing model regarding criteria for deliberative discourse, for example that there is a striving towards agreement, although the consensus may be temporary, that diverging opinions can be set against each other, that tolerance and respect for views other than one’s own are shown, and that traditional outlooks can be questioned. This model is supplemented by designations for a number of disruptive behaviours, such as ridiculing, ignoring, interrupting people and engaging in private conversations. The thus further developed model will thereafter act as a lens in the analysis of students’ discussions when writing joint texts. Another theoretical starting point is the view of education as communication, and of the possibility of communication creating a third place, thereby developing democracy in the here and now-situation. For this study, comprising 18 hours of observation of nine students, that is to say the discussions of three groups in connection with writing texts on different occasions, various ethnographic data collection methods have been employed, for example video recordings, participant observations, field notes and interviews in conjunction with the discussions. The analysis clarifies that the three groups developed their deliberation as the discussions about the joint assignment proceeded, and that most of the nine students furthermore expressed at least an openness towards a deliberative attitude for further discussions in the future. The disruptive behaviours mentioned in connection with the analytical model that could be identified in the discussions, for example interruptions and private conversations, proved not to constitute real disturbances; on the contrary they actually contributed towards the discussions developing, enabling them to continue. On the other hand, other and not previously identified disturbances occurred, for example a focus on grades, the lack of time and lacking language ability, which all in different ways affected the students’ attitudes towards their work. For any future didactical work on deliberative discourse in Swedish as a second language within higher education, these disturbances would need to be highlighted and made aware of for both teachers and students. Keywords: higher education didactics, communication, deliberative discourse, deliberative attitude, John Dewey, Tomas Englund, heterogeneity, ethnographic data collection methods.Mot bakgrund av den svenska skolans dubbla uppdrag, det vill säga att möjliggöra för elever att utveckla både ämneskunskaper och ett demokratiskt förhållningssätt, är syftet med denna avhandling att undersöka i vad mån vuxna högskolestudenter med olika språklig och kulturell bakgrund under sin utbildning i svenska som andraspråk förmår lösa gemensamma skrivuppgifter med hjälp av deliberativa samtal, och i vad mån de därigenom också utvecklar ett deliberativt förhållningssätt. Utbildningens dubbla uppdrag är giltigt också för dem. Samtidigt som det redan finns viss forskning om deliberativa samtal när det gäller undervisning i skolan, saknas fortfarande ett högskoledidaktiskt perspektiv i denna forskning. Föreliggande studie ska ses som ett första högskoledidaktiskt bidrag till denna forskning. Studien tar sin teoretiska utgångspunkt bland annat i tidigare forskning om deliberativa samtal genom att vidareutveckla en befintlig modell när det gäller kriterier för deliberativa samtal, till exempel att det föreligger en strävan efter att komma överens, även om konsensus är temporär, att skilda uppfattningar kan ställas mot varandra, att tolerans och respekt för andra åsikter än de egna kommer till uttryck, och att traditionella synsätt kan ifrågasättas. Studien omfattar 18 timmars observationer av nio studenters, det vill säga tre gruppers samtal i samband med gemensam textskrivning vid olika tillfällen. Olika etnografiska datainsamlingsmetoder har använts, till exempel videoinspelningar, deltagande observationer, fältanteckningar och intervjuer i anslutning till samtalen. Av analysen framgår att de tre grupperna utvecklade sin deliberation allteftersom samtalen kring den gemensamma uppgiften pågick, och att de flesta av de nio studenterna dessutom gav uttryck för en deliberativ beredskap inför fortsatta samtal. Studenternas fokus på sina betyg påverkade emellertid i viss utsträckning deras deliberation och kan betecknas som störningar i samtalen. Inför ett eventuellt framtida didaktiskt arbete med deliberativa samtal inom svenska som andraspråk på högskolan skulle dessa störningar behöva lyftas fram och medvetandegöras både för lärare och studenter.
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Hennius, Samira. ""Vi kan skriva förargument och sedan motargument" : Om deliberativa samtal i undervisning i svenska som andraspråk på högskolenivå." Doctoral thesis, Mälardalens högskola, Utbildningsvetenskap och Matematik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-23161.
Full textAbstract:
In the light of the twofold mission of Swedish schools, that is to say enabling pupils to develop both subject knowledge and a democratic attitude, the purpose of this thesis is to investigate to what extent adult higher education students from different language and social backgrounds, studying Swedish as a second language, are able to carry out joint writing assignments with the aid of deliberative discourse, and to what extent they thereby also develop a deliberative attitude. The twofold mission of education applies to them too. While there already exists a certain amount of research into deliberative discourse relating to education in schools, the perspective of higher education didactics in this research is still lacking. The present study is to be viewed as a first contribution to this research. The theoretical starting point of this study includes previous research into deliberative discourse by further developing an existing model regarding criteria for deliberative discourse, for example that there is a striving towards agreement, although the consensus may be temporary, that diverging opinions can be set against each other, that tolerance and respect for views other than one’s own are shown, and that traditional outlooks can be questioned. This model is supplemented by designations for a number of disruptive behaviours, such as ridiculing, ignoring, interrupting people and engaging in private conversations. The thus further developed model will thereafter act as a lens in the analysis of students’ discussions when writing joint texts. Another theoretical starting point is the view of education as communication, and of the possibility of communication creating a third place, thereby developing democracy in the here and now-situation. For this study, comprising 18 hours of observation of nine students, that is to say the discussions of three groups in connection with writing texts on different occasions, various ethnographic data collection methods have been employed, for example video recordings, participant observations, field notes and interviews in conjunction with the discussions. The analysis clarifies that the three groups developed their deliberation as the discussions about the joint assignment proceeded, and that most of the nine students furthermore expressed at least an openness towards a deliberative attitude for further discussions in the future. The disruptive behaviours mentioned in connection with the analytical model that could be identified in the discussions, for example interruptions and private conversations, proved not to constitute real disturbances; on the contrary they actually contributed towards the discussions developing, enabling them to continue. On the other hand, other and not previously identified disturbances occurred, for example a focus on grades, the lack of time and lacking language ability, which all in different ways affected the students’ attitudes towards their work. For any future didactical work on deliberative discourse in Swedish as a second language within higher education, these disturbances would need to be highlighted and made aware of for both teachers and students. Keywords: higher education didactics, communication, deliberative discourse, deliberative attitude, John Dewey, Tomas Englund, heterogeneity, ethnographic data collection methods.Mot bakgrund av den svenska skolans dubbla uppdrag, det vill säga att möjliggöra för elever att utveckla både ämneskunskaper och ett demokratiskt förhållningssätt, är syftet med denna avhandling att undersöka i vad mån vuxna högskolestudenter med olika språklig och kulturell bakgrund under sin utbildning i svenska som andraspråk förmår lösa gemensamma skrivuppgifter med hjälp av deliberativa samtal, och i vad mån de därigenom också utvecklar ett deliberativt förhållningssätt. Utbildningens dubbla uppdrag är giltigt också för dem. Samtidigt som det redan finns viss forskning om deliberativa samtal när det gäller undervisning i skolan, saknas fortfarande ett högskoledidaktiskt perspektiv i denna forskning. Föreliggande studie ska ses som ett första högskoledidaktiskt bidrag till denna forskning. Studien tar sin teoretiska utgångspunkt bland annat i tidigare forskning om deliberativa samtal genom att vidareutveckla en befintlig modell när det gäller kriterier för deliberativa samtal, till exempel att det föreligger en strävan efter att komma överens, även om konsensus är temporär, att skilda uppfattningar kan ställas mot varandra, att tolerans och respekt för andra åsikter än de egna kommer till uttryck, och att traditionella synsätt kan ifrågasättas. Studien omfattar 18 timmars observationer av nio studenters, det vill säga tre gruppers samtal i samband med gemensam textskrivning vid olika tillfällen. Olika etnografiska datainsamlingsmetoder har använts, till exempel videoinspelningar, deltagande observationer, fältanteckningar och intervjuer i anslutning till samtalen. Av analysen framgår att de tre grupperna utvecklade sin deliberation allteftersom samtalen kring den gemensamma uppgiften pågick, och att de flesta av de nio studenterna dessutom gav uttryck för en deliberativ beredskap inför fortsatta samtal. Studenternas fokus på sina betyg påverkade emellertid i viss utsträckning deras deliberation och kan betecknas som störningar i samtalen. Inför ett eventuellt framtida didaktiskt arbete med deliberativa samtal inom svenska som andraspråk på högskolan skulle dessa störningar behöva lyftas fram och medvetandegöras både för lärare och studenter.
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Hejna, Martin. "Vizualizace stavu sítě." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-17446.
Full textAbstract:
The purpose of this diploma thesis is to provide a complex overview for the network status visualization topic. The diploma thesis is structured into four parts. The first one is dedicated to the definition of the most important terms, together with the description of several visualization methods, network metrics and last but not least to the discussion of visualization risks and benefits. In the second part, an own visualization process is at first proposed and then the particular steps of this process are discussed. Easy to understand examples are applied through this part. In the third part, several method of data collection protocols and visualization tools are briefly described. The analyzed tools are graphic libraries, as well as standalone applications and Network Management Systems. The last part is dedicated to the analysis of the current visualization tools used on the VŠE network. A short analysis of the university's network is also made. According to this analysis, an own solution is proposed for a particular part of network.