Academic literature on the topic 'Blind adaptation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Blind adaptation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Blind adaptation"

1

Silva, M. T. M., M. D. Miranda, and R. Soares. "Concurrent algorithm for blind adaptation of DFE." Electronics Letters 41, no. 16 (2005): 928. http://dx.doi.org/10.1049/el:20051131.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wigren, T. "ODE analysis and redesign in blind adaptation." IEEE Transactions on Automatic Control 42, no. 12 (1997): 1742–47. http://dx.doi.org/10.1109/9.650032.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hatzinakos, Dimitrios. "Blind equalization using stop-and-go adaptation rules." Optical Engineering 31, no. 6 (1992): 1181. http://dx.doi.org/10.1117/12.57510.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kennedy, R. A., B. D. O. Anderson, and R. R. Bitmead. "Stochastic Dynamics of Blind Decision Feedback Equalizer Adaptation." IFAC Proceedings Volumes 23, no. 1 (April 1990): 579–84. http://dx.doi.org/10.1016/s1474-6670(17)52780-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Suvorina, N. P. "Psychological Support of Blind and Visually Impaired Teenagers for the Formation of Self-Construction as a Factor of Social Adaptation in a Boarding School." Вестник практической психологии образования 18, no. 1 (2021): 71–80. http://dx.doi.org/10.17759/bppe.2021180108.

Full text
Abstract:
The article deals with the research on the problem of blind and visually impaired teenagers’ psycho-logical correction, development and formation of self-construction. Optical defect influences personality development. Problems of personality formation are inseparable from the questions of social adaptation of children with profound visual impairment. The important aspect of adaptation is personality adaptation to his inner self. In the native and foreign scientists’ works, there are few re-searches on social adaptation and personality formation where the questions of blind and visually impaired personalities’ socialization and formation would be studied. The aim of the work is formation of positive self-construction within blind and visually impaired teenagers as a social adaptation factor through creating and testing of remedial programmes. The article gives the results of the research, conducted in two stages. With the aim of correcting, formation and development of teen-agers’ personality sphere, some remedial programmes were worked out. Positive dynamics demonstrates the effectiveness of remedial programmes on the formation of complex and positive self-construction as a factor of successful social adaptation, successfully implemented in Verkhnepyshminskaya School for five years.
APA, Harvard, Vancouver, ISO, and other styles
6

Karlapp, Marlene, and Wiebke Köhlmann. "Adaptation and Evaluation of a Virtual Classroom for Blind Users." i-com 16, no. 1 (April 1, 2017): 45–55. http://dx.doi.org/10.1515/icom-2017-0002.

Full text
Abstract:
AbstractDigital media offers multiple possibilities for inclusion of people with disabilities. Nevertheless, they pose barriers especially for blind learners as they hinder an active participation in synchronous learning settings. Virtual classrooms are a particularly good example for a complex media application as they combine various media types such as audio, video, graphical content and text which can only partially be perceived.Our work pursues the goal to facilitate an equal participation in virtual classrooms for blind users. In order to overcome these barriers, alternative user interface concepts for the display on a two-dimensional tactile Braille device have been conceived. Based on these concepts, the virtual classroom solution BigBlueButton was improved thereupon. A subsequent evaluation simulated a learning session with blind users in order to determine the acceptance and usability of the software adaptation. This user study shows that an active participation of blind learners in virtual classroom sessions can be achieved by using multimodal output devices and alternative concepts.
APA, Harvard, Vancouver, ISO, and other styles
7

Indrabayu, Indrabayu, Rahmat Hardian Putra, Ingrid Nurtanio, Intan Sari Areni, and Anugrayani Bustamin. "Blob adaptation through frames analysis for dynamic fire detection." Bulletin of Electrical Engineering and Informatics 9, no. 5 (October 1, 2020): 2189–97. http://dx.doi.org/10.11591/eei.v9i5.2622.

Full text
Abstract:
This study was aiming at helping visually impaired people to detect and estimate the fire distance. Blind people had difficulty knowing the existence of fire at a safe distance; hence the possibility of burning could occur. The color models and blob analysis methods were used to detect the presence of fire in the blind path. Before the fire detection stage, the cascade of the HSV and RGB color models was applied to segment the reddish fire color. The size and shape of a dynamic fire were the parameters used in this paper to distinguish fire from non-fire objects. Changes in the area of the fire object obtained at the Blob analysis stage per 10 frames were the main contributions and novelty in this paper. After the fire is detected, the calculation of the fire distance to a blind person was completed using a pinhole model. This research used 35 data videos with a resolution of 480x640 pixels. The results showed that the fire detection system and the distance estimation achieved an accuracy of 88.86% and the MSE of 0.0358, respectively.
APA, Harvard, Vancouver, ISO, and other styles
8

Uzair, Muhammad, and Ajmal Mian. "Blind Domain Adaptation With Augmented Extreme Learning Machine Features." IEEE Transactions on Cybernetics 47, no. 3 (March 2017): 651–60. http://dx.doi.org/10.1109/tcyb.2016.2523538.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kennedy, Rodney A., Brian D. O. Anderson, and Robert R. Bitmead. "Blind adaptation of decision feedback equalizers: Gross convergence properties." International Journal of Adaptive Control and Signal Processing 7, no. 6 (November 1993): 497–523. http://dx.doi.org/10.1002/acs.4480070603.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Marie, C. "When Page Won't Go to Stage: Adaptation-Resistant Embryos of Theatricality in Agatha Christie's 'Three Blind Mice' and 'Witness for the Prosecution'." Adaptation 7, no. 1 (March 1, 2014): 47–61. http://dx.doi.org/10.1093/adaptation/apu002.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Blind adaptation"

1

Duplessis-Beaulieu, François. "Fast convolutive blind speech separation via subband adaptation." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29535.

Full text
Abstract:
Blind source separation (BSS) attempts to recover a set of statistically independent sources from a set of mixtures knowing only the structure of the mixing network, and the hypothesized probability distribution function of the sources. The case where the sources are immobile persons speaking in a reverberant room is of particular interest, because it represents a first step toward unlocking the so-called "cocktail party problem". Due to the reverberations, BSS in the time domain is usually expensive in terms of computations, but the number of computations can be significantly decreased if separation is carried out in subbands.
An implementation of a subband-based BSS system using DFT filter banks is described, and an adaptive algorithm tailored for subband separation is developed. Aliasing present in the filter bank (due to the non-ideal frequency response of the filters) is reduced by using an oversampled scheme. Experiments, conducted with two-input two-output BSS systems, using both subband and fullband adaptation, indicate that separation and distortion rates are similar for both systems. However, the proposed 32-subband system is approximately 10 times computationally faster than the fullband system.
APA, Harvard, Vancouver, ISO, and other styles
2

Saqr, Raneem. "Blind and Visually Impaired Users Adaptation to Web Environments: A Qualitative Study." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6380.

Full text
Abstract:
Although much research exists on human behavior in online environments, research on users with disabilities is still rare. To draw more attention to this population, this dissertation explored browsing patterns and adaptive behaviors of people with visual disability across different online environments common in daily activities: social network, e-commerce, online information, and search engines’ websites. The main objective of this study is to propose a conceptual framework of how blind and visually impaired users browse and adapt to different web environments. We achieve this objective using a qualitative approach through three studies. In the first study, the researchers collect data by means of in-depth, semi-structured interviews with six users with different levels of visual impairment. In the second study, we use survey questionnaires with open-ended questions to reach a larger sample of study participants. Finally, we conduct a follow-up observational study as means to confirm our results. Open, axial, and selective coding are used for data reduction and analysis as part of the grounded theory method.
APA, Harvard, Vancouver, ISO, and other styles
3

Ben, Tourkia Slim. "L'enseignement de mal voyants en France et en Tunisie : de la défiance visuelle au déficit pédagogique : le cas de l'enseignement des mathématiques à l'école." Thesis, Paris 8, 2018. http://www.theses.fr/2018PA080009.

Full text
Abstract:
L’instruction des ADV (Aveugles et Déficients visuels) sous-tend leur apprentissage et leur intégration aussi bien scolaire que sociale, et est fondée sur des politiques mises en œuvre dans divers pays. En France et dans d’autres pays, sont conçues au profit des ADV des politiques d’intégration dont celles en milieu ouvert et en milieu spécialisé. Les études de terrain en France et en Tunisie montrent, qu’avec de supports et de matériels spécifiques, les ADV ont pu apprendre les mathématiques en concrétisation de ces politiques d’intégration
Teaching the BVI (Blind and Visually Impaired) is the foundation of their learning and integration in both school and society, and is based on policies implemented in various countries. In France and in other countries, integration policies, in an open and specialized setting, are formed for the BVI. Field studies in France and in Tunisia show that with specific media and materials, the BVI were able to learn Math, thus concretizing these integration policies
APA, Harvard, Vancouver, ISO, and other styles
4

Pierre, Constance. "Conséquences fonctionnelles, comportementales et adaptatives d'une mutation de la MAO (MonoAmine Oxydase) chez le poisson cavernicole aveugle Astyanax mexicanus. A Mutation in Monoamine Oxidase (MAO) Affects the Evolution of Stress Behavior in the Blind Cavefish Astyanax Mexicanus." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS084.

Full text
Abstract:
Le neurotransmetteur sérotonine contrôle une grande variété de mécanismes physiologiques et comportementaux. Chez les humains, les mutations qui affectent la monoamine oxydase (MAO), l’enzyme qui dégrade la sérotonine, sont hautement délétères. Pourtant, le morphotype cavernicole aveugle de l’espèce Astyanax mexicanus (téléostéens) porte une mutation (P106L) induisant une perte de fonction partielle de cette enzyme, et semble prospérer dans son habitat souterrain naturel. Cette thèse décrit les effets de cette mutation, depuis l’échelle moléculaire à l’échelle des populations, afin de mieux cerner sa contribution à l’évolution des traits neuro-comportementaux du poisson cavernicole lors de son adaptation au milieu souterrain.Dans une première publication, nous avons établi 4 lignées de poissons, correspondant aux deux morphotypes de l’espèce Astyanax mexicanus (poisson cavernicole et poisson vivant en surface), chacun porteur ou non de la mutation P106L. La mutation P106L affecte le stress en augmentant l’amplitude de la réponse aigue au stress, tout en diminuant l’anxiété. Nous avons aussi étudié la distribution des allèles mutés dans les populations naturelles au Mexique et trouvé que l’allèle mutant est présent dans plusieurs grottes. L’évolution de l’allèle muté sous sélection ou dérive génétique est discutée.Dans une seconde publication, nous avons étudié les conséquences structurelles et biochimiques de la mutation P106L. La réduction de l’activité enzymatique de la MAO mutée est probablement due à une réduction de la flexibilité de l’une des boucles formant l’entrée au site actif, limitant l’accès des substrats. Des mesures d’HPLC ont montré des perturbations majeures de taux de sérotonine, dopamine et noradrénaline (et métabolites) dans le cerveau des poissons mutants. La mutation P106L mao est donc entièrement responsable du déséquilibre monoaminergique observé dans le cerveau des poissons cavernicoles. Enfin, l’effet de la mutation est partiellement compensé par une réduction de l’activité de synthèse de la sérotonine par la TPH. Nos résultats en révèlent plus sur les spécificités des systèmes monoaminergiques des poissons.Enfin, pour aggraver l’inhibition de la MAO, nous avons généré le premier poisson mutant knockout pour la MAO. Les mutants KO homozygotes sont chétifs et meurent durant les premières semaines de développement. Contrairement au système dopaminergique, le système sérotoninergique des poissons KO homozygotes est très fortement altéré : aucun neurone positif à la sérotonine n’est détecté dans l’hypothalamus
The neurotransmitter serotonin controls a great variety of physiological and behavioral processes. In humans, mutations affecting the monoamine oxidase or MAO, the serotonin-degrading enzyme, are highly deleterious. Yet, blind cavefish of the species A. mexicanus carry a partial loss-of-function mutation in MAO (P106L) and seem to thrive in their subterranean environ-ment. This thesis describes the effects of this mutation, from the molecular level to the population level, in order to decipher the exact contribution of mao P106L in the evolution of cavefish neuro-behavioral traits, during their adaptation to the cave environment.In a first paper, we established 4 fish lines, corresponding to the blind cave-dwelling and the sighted river-dwelling morphs of this species, with or without the mutation. We found that mao P106L strongly affected anxiety-like behaviors. Cortisol measurements showed lower basal levels and an increased amplitude of stress response after a change of environment in fish carrying the mutation. Finally, we studied the distribution of the P106L mao allele in wild populations of cave and river A. mexicanus, and discovered that the mutant allele was present – and sometimes fixed - in all populations inhabiting caves of the Sierra de El Abra. The possibility that this partial loss-of-function mao allele evolves under a selective or a genetic drift regime in the particular cave environment is discussed.In a second paper, we assessed the structural and biochemical consequences of the mutation. We found that the reduction of enzymatic activity of mutant MAO is probably caused by a decrease of flexibility in one of the three loops forming the entrance of the active site, thus reducing the access of substrates. HPLC measurements in brains of mutant and non-mutant larvae and adult fish showed major disturbances in serotonin, dopamine and noradrenalin (and metabolites) contents, demonstrating that the P106L mao mutation is fully responsible for monoaminergic disequilibrium in the cavefish brain. We also discovered that the effects of the mutation were partially compensated by a decrease in activity of the TPH, the serotonin biosynthesis rate-limiting enzyme. Our results shade light on the specificities of fish monoaminergic systems.Finally in order to aggravate the MAO inhibition, we generated the first fish knockout MAO mutant. The KO homozygous mutants were stunted and died during the first weeks of development. Contrary to the dopaminergic system which seemed normal in the KO homozygous mutants, the serotonergic system was strongly impaired; no serotonin positive neuron was detected in the hypothalamus
APA, Harvard, Vancouver, ISO, and other styles
5

Silva, Magno Teófilo Madeira da. "Um estudo sobre técnicas de equalização autodidata." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-01042005-214250/.

Full text
Abstract:
Neste trabalho, investigam-se técnicas autodidatas baseadas em estatísticas de ordem superior, aplicadas à equalização de canais de comunicação. Inicialmente, obtém-se um intervalo do passo de adaptação que assegura a convergência do algoritmo do Módulo Constante com o gradiente exato. Algoritmos como o CMA (Constant Modulus Algorithm) e o SWA (Shalvi-Weinstein Algorithm) são revisitados e suas capacidades de tracking analisadas, utilizando-se uma relação de conservação de energia. Além disso, é proposto um algoritmo autodidata denominado AC-CMA (Accelerated Constant Modulus Algorithm) que utiliza a segunda derivada (“aceleração”) da estimativa dos coeficientes. Esse algoritmo pode apresentar um compromisso mais favorável entre complexidade computacional e velocidade de convergência que o CMA e o SWA. Esses resultados são estendidos para o caso multiusuário. Através de simulações, os algoritmos são comparados e as análises de convergência e tracking validadas. Considerando o DFE (Decision Feedback Equalizer) no caso monousuário com o critério do módulo constante, é proposto um algoritmo concorrente que evita soluções degeneradas e apresenta um desempenho melhor do que os existentes na literatura. Com o intuito de evitar propagação de erros, é proposta uma estrutura híbrida que utiliza uma rede neural recorrente na malha de realimentação. Resultados de simulações indicam que seu uso pode ser vantajoso para canais lineares e não-lineares.
The equalization of communication channels is addressed by using blind techniques based on higher order statistics. A step-size interval is obtained to ensure the convergence of Steepest-Descent Constant Modulus Algorithm. The Shalvi-Weinstein Algorithm (SWA) and Constant Modulus Algorithm (CMA) are revisited and their tracking capabilities are analyzed by using an energy conservation relation. Moreover, a novel blind algorithm named Accelerated Constant Modulus Algorithm (AC-CMA) is proposed. It adjusts the second derivative (“acceleration”) of the coefficient estimates and presents a more favorable compromise between computational complexity and convergence rate than CMA or SWA. These results are extended to the MIMO (Multiple-Input Multiple-Output) case. By means of simulations, the algorithms are compared and the convergence and tracking analysis are validated. The Decision Feedback Equalizer (DFE) is considered in the SISO (Single-Input Single-Output) case with the Constant Modulus criterion and a concurrent algorithm is proposed. It avoids degenerated solutions and shows better behavior than the others presented in the literature. In order to avoid error propagation, a hybrid DFE is also proposed. It includes a recurrent neural network in the feedback filter and may be advantageously used to equalize linear and nonlinear channels.
APA, Harvard, Vancouver, ISO, and other styles
6

Huuskonen, Maarit. "Identitet i kris : - identitet och anpassning bland invandrare i Sverige." Thesis, Karlstad University, Faculty of Social and Life Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-326.

Full text
Abstract:

Abstract

When immigrants move to Sweden from their native country it is not unusual that they experience some kind of identity crises. Their own experience of their cultural identity can be very problematic and they often lose a part of what they previously saw as their own identity. To handle such crises the immigrants can use different strategies. They can for example accept their disparity, deny it or emphasize it. The aim of this study is to examine how immigrants in Sweden experience that their cultural identity has changed since they moved here from a country that has a culture that is different from the Swedish culture. To reach my goal with this study I interviewed immigrants/refugees from Chile, Lebanon and Thailand. Some of the results are that my presentation of the problem and the aim with the study were not profound enough. I intended to only write about cultural identity but I came to the conclusion that individual identity and different adaptation strategies were no less important. A further conclusion is that these three ingredients are completely different things; an immigrant can have one individual identity, another cultural identity and use a strategy that does not correspond with any of these. Moreover I also found that a person’s identity does not need to change when moving from their native country to Sweden. Finally I want to stress that my study is not about making sweeping statements, it is rather exemplifying. Identity and strategies are different from one person to another.

Keywords: individual identity, cultural identity, adaptation strategies

APA, Harvard, Vancouver, ISO, and other styles
7

Jay, Jason Chaw. "FOODWAYS OF THE VISUALLY-IMPAIRED: TRAVERSING THE BLIND KITCHEN." Scholarly Commons, 2018. https://scholarlycommons.pacific.edu/uop_etds/3125.

Full text
Abstract:
In the United States, the number of visually impaired and blind Americans will rise drastically as the population continues to age; and, yet little is known about how the impact of blindness affects an individual when it comes to the experience of food provisioning and preparation. This thesis presents the study of how the blind and the visually impaired experience food provisioning and preparation. It explores how modern technology and sensory training help these groups of people traverse kitchen and grocery store environments. In thematically organized chapters, this thesis examines sensory education, nutrition and food related obstacles. This is the first study in the United States in which the experience of food provisioning, preparation of food, and consumption of food are described from the perspective of Blind and Visually Impaired Americans. In this qualitative study, food experience and the eating choices of the blind and visually impaired Americans were examined. Influential factors on the experience of food were also explored.
APA, Harvard, Vancouver, ISO, and other styles
8

Freitas, Mauro Lopes de. "Equalização adaptativa utilizando seleção de dados em transceptores em bloco com redundância reduzida." Universidade Federal do Amazonas, 2014. http://tede.ufam.edu.br/handle/tede/4503.

Full text
Abstract:
Submitted by Geyciane Santos (geyciane_thamires@hotmail.com) on 2015-07-23T12:57:35Z No. of bitstreams: 1 Dissertação - Mauro Lopes de Freitas.pdf: 1646151 bytes, checksum: a4f17991e9db7da2871b0c711b18f484 (MD5)
Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-23T18:44:37Z (GMT) No. of bitstreams: 1 Dissertação - Mauro Lopes de Freitas.pdf: 1646151 bytes, checksum: a4f17991e9db7da2871b0c711b18f484 (MD5)
Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-23T18:47:54Z (GMT) No. of bitstreams: 1 Dissertação - Mauro Lopes de Freitas.pdf: 1646151 bytes, checksum: a4f17991e9db7da2871b0c711b18f484 (MD5)
Made available in DSpace on 2015-07-23T18:47:54Z (GMT). No. of bitstreams: 1 Dissertação - Mauro Lopes de Freitas.pdf: 1646151 bytes, checksum: a4f17991e9db7da2871b0c711b18f484 (MD5) Previous issue date: 2014-09-25
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
systems, mostly due to their welldefined structure and blockwise encoding. Among the main challenges encountered by mobile applications, there is an inherent interblock interference, due to superpositions of delayed signal copies, which is commonly eliminated with the addition of redundancy between adjacent data blocks. In addition to that, channel equalization is also usually employed, in order to further mitigate channel interferences. However, the amount of redundancy may be overestimated, which opens an opportunity for reduced-redundancy superfast transceivers, whose features include high spectral efficiency and low computational cost. Although the superfast approach aims at achieving low complexity, equalizer-coefficient updates are still very complex tasks due to channel variations, and most designs do not employ methodologies for computational-effort reduction. The present work addresses this problem and proposes a new design strategy for block-based transceivers, which provides semiblind equalization with data-selective update, besides the possibility of a generalized approach, based on the fast Fourier transform and diagonal matrices. Simulation results show that our approach updates less than 60% of the equalizer coefficients duringsupervised and blind period and maintain a competitive throughput for single-carrier and multicarrier transmissions.
Atualmente, os transceptores multicanais baseados em blocos são largamente utilizados em sistemas de comunicação sem fio, muito devido a sua estrutura bem definida e ao blockwise encoding. A respeito dos principais problemas encontrados em aplicações móveis, podemos destacar a interferência entre blocos, em decorrência da superposição de cópias atrasadas do sinal, a qual é usualmente eliminada com a adição de uma quantidade de redundância entre blocos de dados adjacentes. Adicionalmente, a equalização é comumente aplicada para mitigar o efeito do canal. Entretanto, a quantidade de redundância pode estar superestimada, abrindo oportunidade para a utilização de transceptores multicanais super-rápidos e com redundância reduzida, que possuem como característica uma alta eficiência espectral e baixa complexidade computacional. Entretanto, a abordagem super-rápida ainda possui uma alta complexidade para atualizar os coeficientes de equalização e a maioria das arquiteturas propostas não utilizam metodologias visando à redução do número de operações. O trabalho atual trata este problema e propõe uma nova arquitetura para tranceptores multicanais com transmissão em blocos, que se utiliza de uma equalização semi-cega com seleção de dados, além da abordagem generalizada, baseadas em transformadas rápidas de Fourier e matrizes diagonais. Os resultados das simulações demonstram que a abordagem permite atualizar menos de 60% dos coeficientes de equalização durante o período supervisionado e não supervisionado de equalização e manter a taxa de saída competitiva para sistemas monoportadora e multiportadora.
APA, Harvard, Vancouver, ISO, and other styles
9

Chira, Liviu-Teodor. "Déconvolution aveugle parcimonieuse en imagerie échographique avec un algorithme CLEAN adaptatif." Thesis, Tours, 2013. http://www.theses.fr/2013TOUR3311/document.

Full text
Abstract:
L'imagerie médicale ultrasonore est une modalité en perpétuelle évolution et notamment en post-traitement où il s'agit d'améliorer la résolution et le contraste des images. Ces améliorations devraient alors aider le médecin à mieux distinguer les tissus examinés améliorant ainsi le diagnostic médical. Il existe déjà une large palette de techniques "hardware" et "software". Dans ce travail nous nous sommes focalisés sur la mise en oeuvre de techniques dites de "déconvolution aveugle", ces techniques temporelles utilisant l'enveloppe du signal comme information de base. Elles sont capables de reconstruire des images parcimonieuses, c'est-à-dire des images de diffuseurs dépourvues de bruit spéculaire. Les principales étapes de ce type de méthodes consistent en i) l'estimation aveugle de la fonction d'étalement du point (PSF), ii) l'estimation des diffuseurs en supposant l'environnement exploré parcimonieux et iii) la reconstruction d'images par reconvolution avec une PSF "idéale". La méthode proposée a été comparée avec des techniques faisant référence dans le domaine de l'imagerie médicale en utilisant des signaux synthétiques, des séquences ultrasonores réelles (1D) et images ultrasonores (2D) ayant des statistiques différentes. La méthode, qui offre un temps d'exécution très réduit par rapport aux techniques concurrentes, est adaptée pour les images présentant une quantité réduite ou moyenne des diffuseurs
The ultrasonic imaging knows a continuous advance in the aspect of increasing the resolution for helping physicians to better observe and distinguish the examined tissues. There is already a large range of techniques to get the best results. It can be found also hardware or signal processing techniques. This work was focused on the post-processing techniques of blind deconvolution in ultrasound imaging and it was implemented an algorithm that works in the time domain and uses the envelope signal as input information for it. It is a blind deconvolution technique that is able to reconstruct reflectors and eliminate the diffusive speckle noise. The main steps are: the estimation of the point spread function (PSF) in a blind way, the estimation of reflectors using the assumption of sparsity for the examined environment and the reconstruction of the image by reconvolving the sparse tissue with an ideal PSF. The proposed method was tested in comparison with some classical techniques in medical imaging reconstruction using synthetic signals, real ultrasound sequences (1D) and ultrasound images (2D) and also using two types of statistically different images. The method is suitable for images that represent tissue with a reduced amount or average scatters. Also, the technique offers a lower execution time than direct competitors
APA, Harvard, Vancouver, ISO, and other styles
10

Silva, Daniela Brasil. "Restauração cega de imagens: soluções baseadas em algoritmos adaptativos." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-27082018-143938/.

Full text
Abstract:
O objetivo da desconvolução cega de imagens é restaurar uma imagem degradada sem usar informação da imagem real ou da função de degradação. O mapeamento dos níveis de cinza de uma imagem em um sinal de comunicação possibilita o uso de técnicas de equalização cega de canais para a restauração de imagens. Neste trabalho, propõe-se o uso de um esquema para desconvolução cega de imagens baseado na combinação convexa de um equalizador cego com um equalizador no modo de decisão direta. A combinação também é adaptada de forma cega, o que possibilita o chaveamento automático entre os filtros componentes. Dessa forma, o esquema proposto é capaz de atingir o desempenho de um algoritmo de filtragem adaptativa supervisionada sem o conhecimento prévio da imagem original. O desempenho da combinação é ilustrado por meio de simulações, que comprovam a eficiência desse esquema quando comparado a outras soluções da literatura.
The goal of blind image deconvolution is to restore a degraded image without using information from the actual image or from the point spread function. The mapping of the gray levels of an image into a communication signal enables the use of blind equalization techniques for image restoration. In this work, we use a blind image deconvolution scheme based on the convex combination of a blind equalizer with an equalizer in the decision-directed mode. The combination is also blindly adapted, which enables automatic switching between the component filters. Thus, the proposed scheme is able to achieve the performance of a supervised adaptive filtering algorithm without prior knowledge of the original image. The performance of the combination is illustrated by simulations, which show the efficiency of this scheme when compared to other solutions in the literature.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Blind adaptation"

1

Nevo, Eviatar. Adaptive radiation of blind subterranean mole rats: Naming and revisiting the four sibling species of the Spalax ehrenbergi superspecies in Israel: Spalax galili (2n=52), S. golani (2n=54), S. carmeli (2n=58) and S. judaei (2n=60). Leiden: Backhuys, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Nevo, Eviatar. Adaptive radiation of blind subterranean mole rats: Naming and revisiting the four sibling species of the 'Spalax ehrenbergi' superspecies in Israël: 'Spalax galili' (2n=52), 'S. golani' (2n=54), 'S. carmeli' (2n=58) and 'S. judaei' (2n=60). Leiden: Backhuys, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

R, Tuttle Naomi, ed. Self-esteem and adjusting with blindness: The process of responding to life's demands. 2nd ed. Springfield, Ill: Charles C Thomas Publisher, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Jalāl al-Dīn Rūmī, Maulana, 1207-1273 and Yelchin Eugene ill, eds. Elephant in the dark. New York, NY: Scholastic, Incorporated, 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hand, Richard. Radio Adaptation. Edited by Thomas Leitch. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199331000.013.19.

Full text
Abstract:
Radio, older than television but newer than cinema, has had to fight for acknowledgment of its power as an autonomous medium rather than a blind version of these other media. Yet it is in some ways more interesting for adapters than either of them because it encourages audiences to visualize scenes and spectacles that producers do not have to stage visually, empowering audiences to become more active even as it keeps down production costs. From its earliest days, radio depended on adaptations of earlier novels, stories, poems, plays, and movies. This adaptive impulse survives in contemporary podcasts, torrents, and audio streamed online, all of them relying on audiences whose experiences with other media make them co-creators of the experiences radio offers.
APA, Harvard, Vancouver, ISO, and other styles
6

Confusion of the Blind: A Novel with Adaptation and Mediation Exercises. Independently Published, 2020.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Levinthal, Daniel A. Evolutionary Processes and Organizational Adaptation. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780199684946.001.0001.

Full text
Abstract:
Strategists are encouraged to identify sustained competitive advantages. This volume takes a different tact and provides a perspective on how organizations adapt over time to changing circumstances. This process is characterized as not driven by the inspired wisdom of a grand strategist, but by an ecology of initiatives within the organization. A central role of the organization is to mediate between the market forces in which it operates and the culling and amplification of these initiatives within the organization. In this spirit, a useful touchstone is that of Mendel, who sits intermediate between the blind watchmaker of a purely Darwinian process and a “chess master” strategist as suggested by stylized rational choice approaches. The “Mendelian executive” operates with intentionality, but this intentionality is with respect to the design of the experimental process rather than the identification of specific pathways forward. The two core conceptual pillars of the work are that of path-dependence, what are the adjacent “spaces” to which an organization might move, and “artificial selection,” how the organization mediates aggregate immediate outcomes and the allocation of resources and rewards to the various initiatives and actors within the organization. Entities that have a sustained lifespan are not static, but engage in processes of renewal, whether cells in the human body or lines of business within a firm. A conceptual framework is provided to illuminate some of the fundamental mechanisms underlying this process.
APA, Harvard, Vancouver, ISO, and other styles
8

Pocheville, Arnaud, and Étienne Danchin. Genetic Assimilation and the Paradox of Blind Variation. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199377176.003.0003.

Full text
Abstract:
This chapter confronts the neo-Darwinian core tenet of blind variation, or random mutation, with classical and recent models of genetic assimilation. We first argue that all the mechanisms proposed so far rely on blind genetic variation fueling natural selection. Then, we examine a new hypothetical mechanism of genetic assimilation, relying on nonblind genetic variation. Yet, we show that such a model still relies on blind variation of some sort to explain adaptation. Last, we discuss the very meaning of the tenet of blind variation. We propose a formal characterization of the tenet and argue that it should not be understood solely as an empirical claim, but also as a core explanatory principle.
APA, Harvard, Vancouver, ISO, and other styles
9

Azekwoh, Anthony, and Deon Gibson. Encounter with the Messiah: A Modern-Day Adaptation of the Stories of Blind Bartimaeus, the Woman with the Issue of Blood and Barabbas. Independently Published, 2021.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hans-Werner, Ph.D. Wahl (Editor) and Hans-Eugen Schulze (Editor), eds. On the Special Needs of Blind and Low Vision Seniors: Research and Practice Concepts (Assistive Technology Research Series, 8). Ios Pr Inc, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Blind adaptation"

1

Fedoroff, Nina V. "Systems Biology of Abiotic Stress: The Elephant and the Blind Men." In Abiotic Stress Adaptation in Plants, 485–502. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-3112-9_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ferati, Mexhid, and Lirim Sulejmani. "Automatic Adaptation Techniques to Increase the Web Accessibility for Blind Users." In HCI International 2016 – Posters' Extended Abstracts, 30–36. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40542-1_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Deville, Yannick, and Shahram Hosseini. "Blind Operation of a Recurrent Neural Network for Linear-Quadratic Source Separation: Fixed Points, Stabilization and Adaptation Scheme." In Latent Variable Analysis and Signal Separation, 237–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15995-4_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Eleblu, John Saviour Yaw, Eugene Tenkorang Darko, and Eric Yirenkyi Danquah. "Case for Climate Smart Agriculture in Addressing the Threat of Climate Change." In African Handbook of Climate Change Adaptation, 131–45. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_32.

Full text
Abstract:
AbstractClimate smart agriculture (CSA) embodies a blend of innovations, practices, systems, and investment programmes that are used to mitigate against the adverse effects of climate change and variability on agriculture for sustained food production. Food crop production under various climate change scenarios requires the use of improved technologies that are called climate smart agriculture to ensure increased productivity under adverse conditions of increased global temperatures, frequent and more intense storms, floods and drought stresses. This chapter summarizes available information on climate change and climate smart agriculture technologies. It is important to evaluate each climate change scenario and provide technologies that farmers, research scientists, and policy drivers can use to create the desired climate smart agriculture given the array of tools and resources available.
APA, Harvard, Vancouver, ISO, and other styles
5

de Saint Moulin, R., J. D. Legat, and Y. Deville. "An Adaptative Pre-Processing for On-Line Hand-Written Character Recognition by Blind People." In International Conference on Advances in Pattern Recognition, 287–96. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0833-7_29.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Jegadeesan, Souframanien, and Kandali Sreenivasulu Reddy. "Radiation-induced mutations in genetic enhancement and development of new crop varieties in black gram (Vigna mungo (L.) Hepper)." In Mutation breeding, genetic diversity and crop adaptation to climate change, 303–11. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249095.0031.

Full text
Abstract:
Abstract Black gram (Vigna mungo (L.) Hepper), popularly known as urdbean or mash or black gram, is a grain legume rich in protein (25-28%), widely cultivated in the Indian subcontinent and to a lesser extent in Thailand, Australia and other Asian and South Pacific countries. Genetic improvement in this crop is hindered due to the narrow genetic base. As genetic variability is a prerequisite for any crop improvement programme, induced mutations provide an important source for generating variability. Radiation (gamma, X-rays and neutron) induced mutants were identified for various morphological and biochemical traits, creating a pool of genetic variability. These mutants were used in a cross-breeding programme to develop high-yielding, disease-resistant varieties in black gram. The effective blend of mutation and recombination breeding at the Bhabha Atomic Research Centre has resulted in the release of five black gram varieties (TAU-1, TAU-2, TPU-4, TU94-2 and TU-40) by incorporating desirable traits like large seed, wider adaptability, resistance to disease and improved quality. These varieties have been developed from mutants directly or by using them in cross-breeding programmes. For example, a black gram variety, N0.55, was irradiated with gamma-rays and electron beams to obtain a large number of mutants. The large-seed mutants, UM-196 and UM-201, were used in cross-breeding with the elite cultivar T-9 for developing the high-yielding varieties TAU-1, TAU-2, TPU-4, TU94-2 and TU-40. TAU-1 has become the most popular variety in Maharashtra state, occupying the maximum area under black gram cultivation. Induced mutations will continue to play an increasing role in generating genetic variability for various traits as a major component of environmentally sustainable agriculture.
APA, Harvard, Vancouver, ISO, and other styles
7

"CHAPTER THREE. Crossing an Academic No-Man’s Land: Explaining Failed Adaptation." In Spying Blind, 43–60. Princeton: Princeton University Press, 2007. http://dx.doi.org/10.1515/9781400830275-006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

"CHAPTER SIX. Real Men Don’t Type: Adaptation Failure in the FBI." In Spying Blind, 120–55. Princeton: Princeton University Press, 2007. http://dx.doi.org/10.1515/9781400830275-009.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

"CHAPTER TWO. Canaries in the Coal Mine: The Case for Failed Adaptation." In Spying Blind, 15–42. Princeton: Princeton University Press, 2007. http://dx.doi.org/10.1515/9781400830275-005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

"CHAPTER FOUR. Fighting Osama One Bureaucrat at a Time: Adaptation Failure in the CIA." In Spying Blind, 61–100. Princeton: Princeton University Press, 2007. http://dx.doi.org/10.1515/9781400830275-007.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Blind adaptation"

1

Simsa, Jan. "DS-CDMA signal blind MMSE detector adaptation." In 2008 18th International Conference Radioelektronika. IEEE, 2008. http://dx.doi.org/10.1109/radioelek.2008.4542699.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

"Fast convolutive blind speech separation via subband adaptation." In 2003 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. IEEE, 2003. http://dx.doi.org/10.1109/aspaa.2003.1285845.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ghauri, I., and D. T. M. Slock. "MMSE-ZF receiver and blind adaptation for multirate CDMA." In Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324). IEEE, 1999. http://dx.doi.org/10.1109/vetecf.1999.797210.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lai, Pauli P. Y. "Application of content adaptation in web accessibility for the blind." In the International Cross-Disciplinary Conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/1969289.1969298.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Morison, G., and T. Durrani. "Blind MIMO channel equalisation using matrix momentum - natural gradient adaptation." In IEE Colloquium on DSP enabled Radio. IET, 2003. http://dx.doi.org/10.1049/ic.2003.0301.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

"USER ADAPTATION IN A PEDESTRIAN GUIDANCE SYSTEM FOR THE BLIND." In 6th International Conference on Enterprise Information Systems. SciTePress - Science and and Technology Publications, 2004. http://dx.doi.org/10.5220/0002650300690074.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Huang, Gang, Panlong Yang, Hao Zhou, Yubo Yan, Xin He, and Xiangyang Li. "FreeBack: Blind and Distributed Rate Adaptation in LoRa-based Backscatter Networks." In 2021 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2021. http://dx.doi.org/10.1109/wcnc49053.2021.9417369.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Almasoud, Suliman K., and Hassan I. Mathkour. "Instant Adaptation Enrichment Technique to Improve Web Accessibility for Blind Users." In the 2019 3rd International Conference. New York, New York, USA: ACM Press, 2019. http://dx.doi.org/10.1145/3325917.3325931.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gunther, Michael, Haitham Afifi, Andreas Brendel, Holger Karl, and Walter Kellermann. "Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks." In 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). IEEE, 2019. http://dx.doi.org/10.1109/waspaa.2019.8937194.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Han, Huy-Dung, Zhi Ding, Junqiang Hu, and Dayou Qian. "On Steepest Descent Adaptation: A Novel Batch Implementation of Blind Equalization Algorithms." In GLOBECOM 2010 - 2010 IEEE Global Communications Conference. IEEE, 2010. http://dx.doi.org/10.1109/glocom.2010.5684129.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography