• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 135
  • 60
  • 23
  • 22
  • 13
  • 11
  • 6
  • 6
  • 3
  • 3
  • 2
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 326
  • 70
  • 63
  • 45
  • 39
  • 39
  • 38
  • 36
  • 34
  • 31
  • 30
  • 28
  • 27
  • 25
  • 24
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
311

„Ich verstehe nur Chinesisch!“

Liu, Tong 31 July 2015 (has links)
Vor dem Hintergrund der Ausspracheabweichungen, die chinesische Muttersprachler beim Erwerb der deutschen Aussprache produzieren bzw. aufweisen, widmet sich die vorliegende Arbeit einer intensiven kontrastiven phonetisch-phonologischen Analyse des Deutschen (Standardbinnendeutsch) und des Chinesischen (Putonghua) auf der segmentalphonetischen und -phonologischen, der phonotaktischen und der suprasegmentalen Ebene, um hierauf aufbauend internetbasierte Lehr- und Lernmaterialien zur deutschen Aussprache für chinesische Muttersprachler zu entwickeln. Exemplarisch für diese Konzeption stehen zwei zweieinhalb- bis dreiminütige selbst entwickelte und professionell ausgearbeitete Lernvideos (zu den deutschen Kurz- und Langvokalen sowie zu Konsonantenhäufungen). / Considering pronunciation deviations which are produced by Chinese native speakers in the learning of German pronunciation, this dissertation conducts an intensive contrastive phonetic-phonological analysis of German (Standard internal German) and Chinese (Putonghua) on the segmental, the phonotactic and the suprasegmental levels, in order to further develop internet-based teaching and learning materials for German pronunciation targeting Chinese native speakers. Two educational videos about German pronunciation for Chinese native speakers based on this contrast are developed as a result of this analysis, with one focusing on German short and long vowels and the other on consonant clusters.
312

Boktrailern : varför marknadsföra text med ljud och bild?

Stanke, Maria Helena January 2010 (has links)
<p>Syftet med den här uppsatsen är att introducera boktrailern som fenomen och marknadsföringsmetod. Likheter mellan boktrailern, bokomslaget och filmtrailern undersöks för att ge en bild av hur en "typisk" boktrailer ser ut och vilka funktioner den kan tänkas ha. Uppsatsen utforskar även boktrailerns möjligheter att nå ut till olika målgrupper i olika åldrar, samt pekar på svårigheter med att definiera en målgrupp. Ungdomslitteratur och fantasygenren kopplas samman med boktrailern och exempel ges på hur författare och förlag kan skapa relationer till läsare via Internet. Generella riktlinjer ges för vad som bör tänkas på för att tilltala flest potentiella läsare när en boktrailer används eller utformas. Boktrailerns förmåga att nå ut till unga, motvilliga läsare, som slutat läsa till fördel för bildbaserade berättarformer såsom filmer och datorspel, utforskas. Slutsatsen framhåller fördelarna med att marknadsföra böcker med ljud och bild.</p> / <p>The purpose of this paper is to introduce the book trailer as a phenomenon and method of marketing. Similarities between the book trailer, the book cover and the movie trailer are examined to show how a "typical" book trailer looks and what functions it possibly has. The paper also explores the book trailer’s prospects of reaching different audiences in different age groups. It also points to difficulties in defining an audience. Young adult literature and the fantasy genre are linked to the book trailer and examples are given on how authors and publishers can establish relationships with readers through the Internet. General guidelines are given for what should be considered to appeal to as many potential readers as possible when a book trailer is being used or designed. The book trailer's ability to reach young, reluctant readers, who have given up on reading to the benefit of image based storytelling like movies and computer games, are explored. The conclusion highlights the advantages of promoting books with audio and video.</p>
313

Multimediální podpora výuky matematiky / Multimedia support of mathematics teaching

SOCHOROVÁ, Iva January 2017 (has links)
This master's thesis Multimedia support of teaching mathematics aims at supporting teachers in introducing innovations in teaching and support in their own teaching materials. It is dedicated to supporting the pupil in self-education. It also serves as an overview of selected resources to support the use of technology and software in teaching. This master's thesis includes examples of the use of mathematical programs in mathematics classes, and a proposal to engage pupils in teaching, by implementing the "Teach Your Fellow" project, which aims to create learning videos for pupils.
314

Criação e uso de material instrucional digital multimídia para o ensino de conceitos de astronomia para o ensino médio

Ferreira, Rafael da Costa 24 January 2018 (has links)
Submitted by Larissa Vitoria Cardoso Cusielo (larissavitoria@id.uff.br) on 2018-01-18T17:38:33Z No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Approved for entry into archive by Biblioteca do Aterrado BAVR (bavr@ndc.uff.br) on 2018-01-24T17:44:31Z (GMT) No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Made available in DSpace on 2018-01-24T17:44:31Z (GMT). No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O principal objetivo dessa Dissertação é avaliar o efeito, na aprendizagem, de textos com recursos de vídeos integrados, uma aplicação das tecnologias de informação e comunicação (TIC) na sala de aula. Pesquisar os efeitos de tais formatos de texto justifica-se pelo fato de as mídias digitais estarem presentes no cotidiano dos jovens, que são o público alvo do estudo. Pesquisar formas alternativas de mídias educacionais pode representar avanços no processo de ensino e aprendizagem ao tornar mais evidentes quais as melhores formas de utilização desses. Para tanto foi produzido um texto sobre a formação do sistema solar e a energia de fusão nuclear do Sol, em formato EPUB3, o que possibilita qualquer pessoa o acessar nas principais plataformas digitais, com o auxílio de um leitor de ebooks. O mesmo material foi utilizado em dois momentos diferentes com os alunos: no primeiro, usamos um texto em formato tradicional, com imagens estáticas. No segundo momento, o mesmo texto escrito foi apresentado aos alunos, mas desta vez com vídeos substituindo algumas das imagens estáticas do primeiro, contendo animações referentes às imagens estáticas que substituíram. Antes e após a aplicação dos dois materiais, foi aplicado um questionário com perguntas referentes ao texto e aos vídeos. A análise dos questionários e opinião dos alunos participantes mostra uma melhora na aprendizagem e desempenho nos testes e sugere que vídeos em materiais digitais têm forte potencial para facilitar o aprendizado de conceitos físicos bastante abstratos e normalmente distantes do cotidiano dos alunos. / The main goal of this dissertation is to evaluate the effect of digital instructional materials with integrated text and videos, applying therefore an Information and Communication Technology (ICT) in a High School environment. Probing the effects of such materials is justified in that digital media are ubiquitous in young learners’ lives, the target group of our study. Alternative educational media can lead to advances in the teaching and learning processes if the best strategies for their application is made evident. With that aim, we have produced a digital instructional material about the formation of the solar system and nuclear fusion energy in the Sun in EPUB3 format, which makes it readily accesible in the most important operating systems with the aid of an e-book reader. The same material was used in two different instances: in the first one, we used the text in its most traditional format, consisting only of written text and static images. In the second instance, we handed students the same written text, but with videos replacing some of the static images. The videos contained animations which intended to illustrate the same concepts covered in the static images they replaced. Before and after the application of the two materials, students answered a questionnaire about the written material and about the videos. The analysis of the answers to the questionnaire shows a significant improvement in the understanding of the concepts especially after the study of the materials with the videos, which suggests that videos in digital media can potentially enhance the learning of rather abstract physical concepts which are not usually present in the students’ everyday lives.
315

O vídeo como recurso didático no ensino de matemática Goiânia - Goiás 2011 / El video como Recurso Didatctico em Enseño de la Matemática

SILVA, Ana Maria da 26 May 2011 (has links)
Made available in DSpace on 2014-07-29T15:00:22Z (GMT). No. of bitstreams: 1 Dissertacao Ana Maria da Silva.pdf: 4202962 bytes, checksum: 61e73f2bc17893c468d9fddbea3567c2 (MD5) Previous issue date: 2011-05-26 / Esta busqueda trata de acercase sobre la organización de le pedagógica del profesor de maemáticas em la escuela secundária cm respecto ao uso del video em la TV Escuela. Buscamos entender las influencias de las directrizes de formación e comunicación em la educación pública en el nivel de la escuela secundaria. Nos esforzamos, de manera específica analizar las políticas públicas de formación del profesor pra el uso de las TICS, contrastar las orientaciones estabelecidas en los cursos com la prática docente de formación contínua com la práctica docente e comprobar cómo el profesor de matemáticas organiza la práctica pedagógica con video. Con estos objetivos buscamos responder la seguinte pregunta investigativa: ?Cómo el profesor de matemáticas de la escuela secundária há organizado la práctica pedagógica con el video didático, de las directrizes de formación de profesorado para el uso de las TICS en aula de clase? Se realizó en estas investigación un movimento que incluya las dimensiones macro (directrizes de la Secretaria de Educación a Distáncia del Ministerio de la Educación), meso (Supervisión de TEcnologia Educativa de la Secretaría de Estado de la Educación del Maranhão, Unidad Regional de Educación de Balsas, Núcleo de Tecnología Educacional de Balsas y las Escuelas) y micro (Aula de Clase) de esta organización del trabajo docente cuanto al uso del video en las clases de matemáticas en particular el modo como el profesor de la escuela secundária há utilizado en su práctica los videos de TV Escuela. En la contexto de las investigaciónes nos dirigimos a los siguinmtes aspectos: políticas públicas de las TICs, el video el el enseño de las matemáticas; formación y prácticas docentes; video en la educación de la matemática. Debido a las características y objetivos de la busqueda adoptamos el enfoque caulitativo, naturalista de base empírica. Utilizamos las siguintes técnicas e instrumentos para recopilar datos: análise documental, cuestionário, entrevista, semiestruturada y la observación participante, acompañada de diário de campo. Contamos con la colaboración de los grupos de sujeitos: grupo un, cuatro directivos que implementan y ponem em práctica las políticas públicas de las TICs: Director de Producción en EAD, de la Secretaria de Educación a Distancia, Supervisor de las Tecnologías Educativas, Directora de la Unidad Regional de Educación y la Coordinadora del Núcleo de Tecnología Educativa de Balsas; y grupo dos, tres profesores de matemática de la escuela secundária de tres escuelas de la red estadual de enseño en Balsas. El estudio subraya la importancia del audiovisual (video) en el enseño de la matemática y ponne que relieve que las escuelas se adhieren a los programas de las TICs, pero la falta de la infraestructura, manutención de los equipos, apoyo pedagógico, disposición del material al alcance del profesor y formación continua en la própria escuela. / A presente pesquisa objetivou abordar a organização da prática pedagógica do professor de matemática do ensino médio quanto ao uso do vídeo da TV Escola. Procuramos compreender as influências das diretrizes de formação continuada para o uso das tecnologias da informação e comunicação na educação pública no que diz respeito ao Ensino Médio. Empenhamo-nos, de modo específico, analisar as políticas públicas de formação do professor para o uso das TIC, contrapor as orientações previstas nos cursos de formação continuada com a prática docente e verificar de que modo o professor de matemática organiza a prática com o vídeo. Com tais objetivos, buscamos responder a seguinte pergunta investigativa: de que modo o professor de matemática do Ensino Médio tem organizado a prática pedagógica com o vídeo didático, a partir das diretrizes de formação de professores para o uso das TIC em sala de aula? Realizamos um movimento que incluiu dimensões macro (diretrizes da Secretaria de Educação a Distância do Ministério da Educação), meso (Supervisão de Tecnologia Educativa da Secretaria de Estado de Educação do Maranhão, Unidade Regional de Educação de Balsas, Núcleo de Tecnologia Educacional do Maranhão e Escolas) micro (Sala de Aula) dessa organização docente quanto ao uso do vídeo nas aulas de matemática. Em particular, procuramos pensar o modo como o professor de matemática do ensino médio tem utilizado em sua prática os vídeos da TV Escola. No contexto desta pesquisa, abordamos os seguintes aspectos: políticas públicas das TIC, o vídeo didático no ensino de matemática; formação e práticas docentes; vídeo na educação e o vídeo na educação matemática. Devido às características e objetivos da pesquisa, adotamos a abordagem qualitativa, naturalística de base empírica. Valemo-nos das seguintes técnicas e instrumentos de coleta de dados: Análise Documental, Questionário, Entrevista Semiestruturada e Observação Participante, acompanhada de Diário de Campo. Tivemos a colaboração de dois grupos de sujeitos: grupo um quatro gestores que implantam e implementam as políticas públicas das TIC: Diretor de Produção em EAD, da Secretaria de Educação a Distância, Supervisor das Tecnologias Educacionais, Gestora da Unidade Regional de Educação e a Coordenadora do Núcleo de Tecnologia Educacional de Balsas; e grupo dois três professores de matemática do Ensino Médio de três escolas da rede estadual de ensino, em Balsas. O estudo ressalta a importância do audiovisual (vídeo) no ensino de matemática e destaca que as escolas aderem aos programas das TIC, mas falta infraestrutura, manutenção dos equipamentos, apoio pedagógico, disposição do material ao alcance do professor e formação continuada na própria escola.
316

Boktrailern : varför marknadsföra text med ljud och bild?

Stanke, Maria Helena January 2010 (has links)
Syftet med den här uppsatsen är att introducera boktrailern som fenomen och marknadsföringsmetod. Likheter mellan boktrailern, bokomslaget och filmtrailern undersöks för att ge en bild av hur en "typisk" boktrailer ser ut och vilka funktioner den kan tänkas ha. Uppsatsen utforskar även boktrailerns möjligheter att nå ut till olika målgrupper i olika åldrar, samt pekar på svårigheter med att definiera en målgrupp. Ungdomslitteratur och fantasygenren kopplas samman med boktrailern och exempel ges på hur författare och förlag kan skapa relationer till läsare via Internet. Generella riktlinjer ges för vad som bör tänkas på för att tilltala flest potentiella läsare när en boktrailer används eller utformas. Boktrailerns förmåga att nå ut till unga, motvilliga läsare, som slutat läsa till fördel för bildbaserade berättarformer såsom filmer och datorspel, utforskas. Slutsatsen framhåller fördelarna med att marknadsföra böcker med ljud och bild. / The purpose of this paper is to introduce the book trailer as a phenomenon and method of marketing. Similarities between the book trailer, the book cover and the movie trailer are examined to show how a "typical" book trailer looks and what functions it possibly has. The paper also explores the book trailer’s prospects of reaching different audiences in different age groups. It also points to difficulties in defining an audience. Young adult literature and the fantasy genre are linked to the book trailer and examples are given on how authors and publishers can establish relationships with readers through the Internet. General guidelines are given for what should be considered to appeal to as many potential readers as possible when a book trailer is being used or designed. The book trailer's ability to reach young, reluctant readers, who have given up on reading to the benefit of image based storytelling like movies and computer games, are explored. The conclusion highlights the advantages of promoting books with audio and video.
317

Interaction Design Patterns und CSCL-Scripts für Videolernumgebungen / Interaction design patterns and CSCL scripts for video-based learning environments

Seidel, Niels 15 March 2018 (has links) (PDF)
In den letzten Jahren haben Lernvideos im Bereich des informellen und formellen Lernens an Bedeutung gewonnen. Inwieweit Lernende bei der Nutzung von Videos unterstützt werden und Lehrende didaktische Szenarien umsetzen können, hängt jedoch von der eingesetzten Videolernumgebung ab. Es ist Anliegen der vorliegende Arbeit, Prinzipien des User Interface Designs sowie Komponenten und Mechanismen videobasierter Lehr-Lern-Szenarien in Bezug auf Videolernumgebungen zu identifizieren, zu beschreiben und technisch zu realisieren. Das Ziel besteht darin, Gestaltungsprinzipien in Form von Interaction Design Patterns zu erarbeiten und computergestützte videobasierte Lehr-Lern-Szenarien mit Hilfe von CSCL-Scripts durch eine geeignete Spezifikation und Formalisierung zu realisieren. Für die Erarbeitung der Interaction Design Patterns wurden 121 Videolernumgebungen hinsichtlich 50 Kategorien in einer Inhaltsanalyse empirisch untersucht und dokumentiert. Unter Berücksichtigung ähnlicher Patterns aus thematisch verwandten Pattern Languages und den Erfahrungen aus der Implementierung und dem Einsatz von Videolernumgebungen entstanden 45 Interaction Design Patterns für verbreitete Lösungen für wiederkehrende Probleme bei der Gestaltung und Entwicklung von Videolernumgebungen. Diese Patterns wurden auf Pattern Konferenzen diskutiert und im Anschluss evaluiert sowie bei der Konzeption, Entwicklung und Bewertung mehrerer Videolernumgebungen angewendet. Zudem wurde das Software Framework VI-TWO vorgestellt, mit dem sich fast alle Patterns auf einfache Weise in Web-Anwendungen realisieren lassen. Zur Spezifikation videobasierter CSCL-Scripts wurden existierende videobasierte und nicht videobasierte Scripts analysiert. Im Ergebnis unterschieden sich videobasierte CSCL-Scripts von allgemeinen CSCL-Scripts vor allem hinsichtlich der mit dem Video verknüpften oder darin verankerten Aufgaben und Aktivitäten. Videos werden dabei nicht als monolithische Einheiten, sondern als zeitkontinuierliche Medien betrachtet, in denen weitere Informationen zeitgenau verankert und Lernaktivitäten stattfinden können. Außerdem ließen sich drei Typen videobasierter CSCL-Scripts identifizieren: (1) Scripts zur Analyse und Diskussion von Videoinhalten, (2) Peer Annotation Scripts einschließlich dem Peer Assessment und (3) Jigsaw-Scripts, die das problembasierte Lernen mit Hilfe von Videos ermöglichen. Unabhängig davon variiert die Komplexität der Scripts auf drei Stufen: (1) sofern voneinander abgegrenzte zeitliche Phasen von Lernaktivitäten bestehen, (2) wenn darüber hinaus die Teilnehmer innerhalb von Gruppen Aufgaben bearbeiten (intra-group) und (3) falls außerdem Aufgaben auch gruppenübergreifend bearbeitet werden (inter-group). Auf Grundlage der Spezifikation konnte ein Datenmodell und ein Modell für die nutzerseitige Modellierung von Scripts verschiedener Komplexitätsstufen sowie Typen entwickelt und in dem CSCL-System VI-LAB realisiert werden. Diese Arbeit leistet in zweifacher Hinsicht einen Beitrag zur Forschung im Bereich E-Learning. Zum einen beschreiben die Interaction Design Patterns wiederkehrende User Interface Lösungen und stellen somit ein Hilfsmittel für Designer, Software Entwickler und Lehrende bei der Gestaltung und Implementierung von Videolernumgebungen dar. Zum anderen wurden durch die Spezifikation und softwareseitige Umsetzung videobasierter CSCL-Scripts Voraussetzungen geschaffen, die den praktischen Einsatz und die weitere Untersuchung des kollaborativen Lernens mit Videos ermöglichen.
318

Propositions pour un paradigme culturel de la phono-cinématographie: des phono-scènes aux vidéoclips et au-delà

Gille, Quentin 26 May 2014 (has links)
La proposition centrale de cette thèse est double. D’une part, il s’agit de jeter les bases d’un modèle historique qui réunirait tous les dispositifs audiovisuels qui associent des images animées à une chanson populaire qui leur est préexistante sous un même paradigme culturel que nous baptiserons « phono-cinématographie ». Celui-ci aurait débuté vers la fin du XIXe siècle, avec l’invention du kinétoscope d’Edison, pour aboutir à nos jours avec l’émergence des vidéos musicales interactives sur Internet. D’autre part, il s’agit de nous interroger sur le rôle a priori central que les Beatles occupent au sein de cette histoire de la chanson populaire mise en image. Notre hypothèse principale est que le vidéoclip, tel qu’il s’est institutionnalisé au début des années 1980 pour ensuite se perpétuer jusque dans les années 2000, n’a rien d’une pratique culturelle (voir même d’un média) figé(e) :bien au contraire, cette pratique/ce média a été l’objet de réélaborations continues tant sur le plan de la production, de la diffusion que de la fonction.<p>Notre approche se situe à cheval sur l’histoire du cinéma, de la musique populaire et de la télévision. En nous appuyant sur certaines propositions théoriques et certains concepts formulés dans le champ des études cinématographiques ainsi que dans le champ des performance studies, nous serons particulièrement attentif aux questions de représentation qui se déploient dans ces différents dispositifs phono-cinématographiques :à savoir, les premiers films chantants (les phono-scènes Gaumont et les Vitaphone shorts), les juke-boxes équipés d’un écran (les Soundies et les Scopitones) et enfin les vidéos musicales télévisées (les films promotionnels et les vidéoclips). / Doctorat en Information et communication / info:eu-repo/semantics/nonPublished
319

Investigating the interactive use of computer simulations and videos in teaching grade 10 magnetism: a case study of four high schools in Mpumalanga province

Dzikiti, Lister Munodawafa 01 1900 (has links)
This study investigated the interactive use of computer simulations (CS) and videos on magnetism in Grade 10 at four high schools in the Mpumalanga province. Magnetism is one of the sections of the Physical Sciences CAPS curriculum. Four MST high schools in the Badplaas/Mashishila circuits of the Gert Sibande district in Mpumalanga were used as a case study. Three schools were used as experimental groups while the fourth school was used as control group. The first group was taught using computer simulations. The second group was taught using videos. The third group was taught using both computer simulations and videos, and the fourth group was taught using normal traditional methods. Using the pre-post test non-equivalent control group design, it was found that learners in all the experimental groups, who were taught using either computer simulations or videos or both, achieved significantly higher scores after being subjected to the post-test than learners in the control group, who were taught only by the normal traditional method. Furthermore, learners who were taught using a combination of CS and videos achieved significantly higher scores than learners who were exposed to only CS or only videos. Class observations conducted during the study reported that the use of information communication technology (ICT) tools with learners in the experimental groups proved to be informative, motivational and inspirational. This was evidenced by active learner participation, the learners being able to make predictions after observations and provide scientific explanations of concepts through discussions. The use of ICT tools in the form of CS and videos proved to be an effective instrument which can enhance learning. / Physics / M. Sc. (Physics Education)
320

Etude et prédiction d'attention visuelle avec les outils d'apprentissage profond en vue d'évaluation des patients atteints des maladies neuro-dégénératives / Study and prediction of visual attention with deep learning net- works in view of assessment of patients with neurodegenerative diseases

Chaabouni, Souad 08 December 2017 (has links)
Cette thèse est motivée par le diagnostic et l’évaluation des maladies neuro-dégénératives et dans le but de diagnostique sur la base de l’attention visuelle.Néanmoins, le dépistage à grande échelle de la population n’est possible que si des modèles de prédiction automatique suffisamment robustes peuvent être construits. Dans ce contexte nous nous intéressons `a la conception et le développement des modèles de prédiction automatique pour un contenu visuel spécifique à utiliser dans l’expérience psycho-visuelle impliquant des patients atteints des maladies neuro-dégénératives. La difficulté d’une telle prédiction réside dans une très faible quantité de données d’entraînement. Les modèles de saillance visuelle ne peuvent pas être fondés sur les caractérisitiques “bottom-up” uniquement, comme le suggère la théorie de l’intégration des caractéristiques. La composante “top-down” de l’attention visuelle humaine devient prépondérante au fur et à mesure d’observation de la scène visuelle. L’attention visuelle peut-être prédite en se basant sur les scènes déjà observées. Les réseaux de convolution profonds (CNN) se sont révèlés être un outil puissant pour prédire les zones saillantes dans les images statiques.Dans le but de construire un modèle de prédiction automatique pour les zones saillantes dans les vidéos naturels et intentionnellement dégradées, nous avons conçu une architecture spécifique de CNN profond. Pour surmonter le manque de données d’apprentissage,nous avons conçu un système d’apprentissage par transfert dérivé de la méthode de Bengio.Nous mesurons ses performances lors de la prédiction de régions saillantes. Les r´esultatsobtenus sont int´eressants concernant la r´eaction des sujets t´emoins normaux contre leszones d´egrad´ees dans les vid´eos. La comparaison de la carte de saillance pr´edite des vid´eosintentionnellement d´egrad´ees avec des cartes de densit´e de fixation du regard et d’autresmod`eles de r´ef´erence montre l’int´erˆet du mod`ele d´evelopp´e. / This thesis is motivated by the diagnosis and the evaluation of the dementia diseasesand with the aim of predicting if a new recorded gaze presents a complaint of thesediseases. Nevertheless, large-scale population screening is only possible if robust predictionmodels can be constructed. In this context, we are interested in the design and thedevelopment of automatic prediction models for specific visual content to be used in thepsycho-visual experience involving patients with dementia (PwD). The difficulty of sucha prediction lies in a very small amount of training data.Visual saliency models cannot be founded only on bottom-up features, as suggested byfeature integration theory. The top-down component of human visual attention becomesprevalent as human observers explore the visual scene. Visual saliency can be predictedon the basis of seen data. Deep Convolutional Neural Networks (CNN) have proven tobe a powerful tool for prediction of salient areas in static images. In order to constructan automatic prediction model for the salient areas in natural and intentionally degradedvideos, we have designed a specific CNN architecture. To overcome the lack of learningdata we designed a transfer learning scheme derived from bengio’s method. We measureits performances when predicting salient regions. The obtained results are interestingregarding the reaction of normal control subjects against degraded areas in videos. Thepredicted saliency map of intentionally degraded videos gives an interesting results comparedto gaze fixation density maps and other reference models.

Page generated in 0.0414 seconds