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  • 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.
11

An?lise da constru??o de objetos de aprendizagem para ensino de enfermagem na Universidade Federal do Rio Grande do Sul

Fr?es, Karine Alencar 16 September 2016 (has links)
?rea de concentra??o: Ensino, ?tica e pol?tica p?blica de sa?de. / Disponibiliza??o do trabalho em conte?do parcial, conforme Termo de Autoriza??o. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-03-20T20:34:27Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) karine_alencar_froes_parcial.pdf: 390320 bytes, checksum: e1ff6d61571979f05b06c9248961dfbf (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-04-20T14:53:47Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) karine_alencar_froes_parcial.pdf: 390320 bytes, checksum: e1ff6d61571979f05b06c9248961dfbf (MD5) / Made available in DSpace on 2017-04-20T14:53:47Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) karine_alencar_froes_parcial.pdf: 390320 bytes, checksum: e1ff6d61571979f05b06c9248961dfbf (MD5) Previous issue date: 2016 / A cont?nua e acelerada evolu??o dos conhecimentos na atualidade tem gerado a necessidade de atualiza??o e aprendizado cont?nuo do homem, al?m da exig?ncia do mercado por profissionais com mais qualifica??o, novas compet?ncias e habilidades. Diante desse cen?rio, na educa??o, tem se constru?do novas concep??es pedag?gicas a partir do uso dos novos recursos tecnol?gicos. A Enfermagem acompanha o contexto apresentado. Percebeu-se o aumento na produ??o de tecnologias pela Enfermagem, nas ?reas educacionais, assistenciais e gerenciais. Recursos tecnol?gicos, como os objetos de aprendizagem (OA), tornam-se importantes estrat?gias ? medida que possibilitam superar as barreiras para a realiza??o das experi?ncias pr?ticas, permitindo ao estudante uma aproxima??o com a realidade. A Escola de Enfermagem da Universidade Federal do Rio Grande do Sul (UFRGS) apresenta experi?ncia na elabora??o de OA para o ensino de enfermagem. Sendo assim, o presente estudo tem como objetivo compreender o processo de elabora??o de objetos de aprendizagem no ensino de enfermagem na Universidade Federal do Rio Grande do Sul durante o per?odo de 2010 a 2014. Para a realiza??o do estudo optou-se pela pesquisa b?sica, explorat?ria, descritiva, cujos procedimentos t?cnicos incluem a pesquisa bibliogr?fica, documental, a abordagem qualitativa e o estudo de caso. A amostra foi constitu?da por um total de cinco docentes de enfermagem da UFRGS. Para a realiza??o da coleta dos dados optou-se, como instrumento, a entrevista estruturada. A an?lise documental da pesquisa foi constitu?da por projetos de desenvolvimento de OA, al?m de documentos referentes ? implanta??o do n?cleo de inform?tica na referida escola. Os dados foram analisados atrav?s da t?cnica de an?lise de conte?do. Ficou evidente que o desenvolvimento de um OA ? complexo e est? relacionado com diversos fatores, como paradigmas educacionais, ferramentas tecnol?gicas, equipe multidisciplinar, metodologias de elabora??o e teorias e m?todos de ensino/aprendizagem. Evidenciou-se, tamb?m, que fatores como or?amento, infraestrutura, a falta de conhecimento t?cnico e te?rico sobre OA e o ac?mulo de atividades por parte dos docentes de enfermagem interferem na implementa??o de projetos de desenvolvimento de OA. No estudo, ficou percept?vel a necessidade de uma op??o consciente e reflexiva por parte dos docentes de enfermagem em rela??o aos aspectos que envolvem o desenvolvimento de um OA, como a concep??o e caracter?sticas dos objetos, enfoques pedag?gicos e metodologia de desenvolvimento. Foi poss?vel observar concord?ncia e discord?ncias relacionadas a enfoques pedag?gicos, al?m da determina??o de ?etapas? de metodologia de produ??o, mesmo que de forma intuitiva. A partir da an?lise dos discursos dos entrevistados e das diferentes metodologias abordadas, o presente estudo prop?e um novo ?Processo de Desenvolvimento de Objeto de Aprendizagem?, com o intuito de reunir em um ?nico m?todo os principais elementos destacados pelos diferentes autores citados na pesquisa que prop?em metodologias de constru??o de objetos. / Disserta??o (Mestrado) ? Programa de P?s-gradua??o em Ensino em Sa?de, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / The continuous and rapid development of knowledge nowadays has generated the need for updating and continuous learning of mankind, besides the market demand for professionals with more qualifications, new skills and abilities. In this scenario, in education, new pedagogical conceptions have been created from the use of new technological resources. Nursing follows this present context. It was noticed a rise in the production of technologies by Nursing in educational, care and management areas. Technological resources, such as learning objects (LO), become important strategies as they enable to overcome the barriers to the accomplishment of practical experiences, allowing students to be close to reality. The Nursing School of the Universidade Federal do Rio Grande do Sul (UFRGS) has experience in the development of LO for nursing education. Thus, this study aims to understand the Learning Objects development process in Nursing Education at UFRGS during the period 2010 to 2014. According to the chosen methods, this research is considered to be basic, exploratory, and descriptive. Its technical procedures include literature review, documentary research, qualitative approach, and case study. The sample consisted of a total of five nursing faculty members of the UFRGS, and a structured interview was used for data collection. The documentary analysis of the research consisted of projects for the development of LO as well as documents related to the implementation of the computing center at the nursing school. Data were analyzed by using content analysis technique. It has become evident that LO development is complex, and it is related to many factors such as educational paradigms, technological tools, multidisciplinary team, development methodologies, and theories and methods for teaching/learning. It evidenced that factors such as budget, infrastructure, lack of technical and theoretical knowledge about LO as well as the accumulation of activities by the nursing faculty members interfere with the implementation of LO development projects. In the study, it became noticeable the need for a conscious and reflective option by the nursing faculty members in regard to aspects involving the development of a LO, such as the design and characteristics of the objects, pedagogical approaches, and development methodology. It was possible to observe agreement and disagreements related to pedagogical approaches, in addition to the determination of "steps" of production methodology, though intuitively. From the analysis of the interviewees? discourses and from the different methodologies approached, this study proposes a new "Process for the Development of Learning Object" in order to bring together in a single method the major elements highlighted by different authors mentioned in this work who propose methods for the creation of objects.
12

Modelo de planejamento para repositório de objetos de aprendizagem em organizações educacionais (MOPROA) / Model for planning learning objects repository in educational organizations

Guilherme Bizarro Salve 10 September 2010 (has links)
A tecnologia apóia o processo de ensino de diversas maneiras ao mesmo tempo em que traz desafios para sua utilização. A produção e disponibilização de materiais instrucionais é um dos pilares dos sistemas de ensino, sendo o repositório de objetos de aprendizagem uma forma possível para realização. Essa solução possui poucos anos de existência se comparada a outras, o que impõe desafios para o seu planejamento. Em parte significativa das organizações de ensino observa-se lacuna de conhecimentos nas áreas que envolvem a planificação desse empreendimento. O interesse do estudo e do pesquisador é a integração dos campos de conhecimento envolvidos, nesse caso o técnico, o gerencial, o legal e o pedagógico, para o aumento da capacidade desse processo, na qual se possa identificar as atividades, boas práticas e resultados necessários, em formato flexível, para que se estruture em bases sustentáveis para implantação. O objetivo geral foi o desenvolvimento de um modelo de planejamento para repositório de objetos de aprendizagem. A hipótese da pesquisa é que a formalização, a mobilização de recursos, a aceitação, a integração, a descentralização, o controle, a avaliação ambiental e a interação entre os planejadores estão contemplados no modelo e possibilitam o aumento da capacidade de planejamento do repositório de objetos de aprendizagem em organizações de ensino. De forma a alcançar o resultado requerido foi realizado estudo de múltiplos casos, que decorreram ao longo do ano de 2009 até meados do ano de 2010. A unidade de análise foi o planejamento de repositório de objetos de aprendizagem em organizações com fins educacionais. Realizou-se pesquisa das referências, que envolviam documentos científicos e organizacionais, da área de gestão de projetos e repositório, para que se chegasse a primeira versão da proposta. De forma integrante utilizou-se entrevistas, análise de documentos, observação e instrumento de pesquisa, para a realização de melhorias e o alcance dos resultados e análises quanto a funcionalidade do modelo, com o intuito de melhorar a capacidade do planejamento. O instrumento foi desenvolvido com a utilização de protocolo de modo a ser testado e validado. A hipótese de pesquisa foi confirmada, porém a dimensão mobilização teve concordância interavaliadores baixa, o que demanda atenção especial, de modo que não faltem recursos e pessoas para a realização do trabalho. A pesquisa contribuiu ao proporcionar aos gestores, fases, processos, atividades, boas práticas e questões que possibilitam o aumento da capacidade do planejamento desse tipo de empreendimento. / Technology has supported the teaching process in several ways whereas it poses challenges to its use. The production and availability of instructional materials is one of the pillars of education, and the learning object repository is a possible way to achieve this task. This solution has few years of existence, which poses challenges for planning, In a considerable number of educational organizations there is a knowledge gap in the areas surrounding the planning of learning object repository. The interest of this study and of the researcher is integrating the fields of knowledge involved, which, in this case, are the technical, managerial, legal and pedagogical. The purpose is to increase the capacity of this process, where one can identify the activities, best practices and necessary results, in a flexible format, so that it is structured on a sustainable basis for deployment. The overall objective was the development of a model for planning learning object repository. The hypothesis is that, formalization, resource mobilization, acceptance, integration, decentralization, control, environmental assessment and interaction between planners are included in the model allowing to increase the capacity to plan the learning object repository in educational organizations. ln order to achieve the required result multiple case study was realized, during the year of 2009 until mid-2010. The unit of analysis was the planning of learning object repository in organizations with educational purposes. We performed a review of the literature, involving scientific and organizational documents, in the area of project management and learning object repository, to reach the first version of the proposal. We used interviews, document analysis, observation and research tool for the realization of improvement and achievement of results and analysis regarding the functionality of the model, in order to improve the capacity of planning. The instrument was tested and validated by means of a protocol. The research hypothesis was confirmed, but the dimension resource mobilization had low interrater agreement, which requires special attention, so that there is no lack of resources and people to do the work. The research contributed by providing managers with, phases, processes, activities, best practices and issues that make it possible to increase the capacity of planning this type of project.
13

On-the-fly visual category search in web-scale image collections

Chatfield, Ken January 2014 (has links)
This thesis tackles the problem of large-scale visual search for categories within large collections of images. Given a textual description of a visual category, such as 'car' or 'person', the objective is to retrieve images containing that category from the corpus quickly and accurately, and without the need for auxiliary meta-data or, crucially and in contrast to previous approaches, expensive pre-training. The general approach to identifying different visual categories within a dataset is to train classifiers over features extracted from a set of training images. The performance of such classifiers relies heavily on sufficiently discriminative image representations, and many methods have been proposed which involve the aggregating of local appearance features into rich bag-of-words encodings. We begin by conducting a comprehensive evaluation of the latest such encodings, identifying best-of-breed practices for training powerful visual models using these representations. We also contrast these methods with the latest breed of Convolutional Network (ConvNet) based features, thus developing a state-of-the-art architecture for large-scale image classification. Following this, we explore how a standard classification pipeline can be adapted for use in a real-time setting. One of the major issues, particularly with bag-of-words based methods, is the high dimensionality of the encodings, which causes ranking over large datasets to be prohibitively expensive. We therefore assess different methods for compressing such features, and further propose a novel cascade approach to ranking which both reduces ranking time and improves retrieval performance. Finally, we explore the problem of training visual models on-the-fly, making use of visual data dynamically collected from the web to train classifiers on demand. On this basis, we develop a novel GPU architecture for on-the-fly visual category search which is capable of retrieving previously unknown categories over unannonated datasets of millions of images in just a few seconds.
14

Continual Object Learning

Erculiani, Luca 10 June 2021 (has links)
This work focuses on building frameworks to strengthen the relation between human and machine learning. This is achieved by proposing a new category of algorithms and a new theory to formalize the perception and categorizationof objects. For what concerns the algorithmic part, we developed a series of procedures to perform Interactive Continuous Open World learning from the point of view of a single user. As for humans, the input of the algorithms are continuous streams of visual information (sequences of frames), that enable the extraction of richer representations by exploiting the persistence of the same object in the input data. Our approaches are able to incrementally learn and recognize collections of objects, starting from emph{zero} knowledge, and organizing them in a hierarchy that follows the will of the user. We then present a novel Knowledge Representation theory that formalizes the property of our setting and enables the learning over it. The theory is based on the notion of separating the visual representation of objects from the semantic meaning associated with them. This distinction enables to treat both instances and classes of objects as being elements of the same kind, as well as allowing for dynamically rearranging objects according to the needs of the user. The whole framework is gradually introduced through the entire thesis and is coupled with an extensive series of experiments to demonstrate its working principles. The experiments focus also on demonstrating the role of a developmental learning policy, in which new objects are regularly introduced, enabling both an increase in recognition performance while reducing the amount of supervision provided by the user.
15

[en] DEVELOPMENT OF LEARNING OBJECTS DIGITAL LIBRARIES USING DATA WAREHOUSING AND DATA MINING TECHNIQUES / [pt] DESENVOLVIMENTO DE BIBLIOTECAS DIGITAIS DE LEARNING OBJECTS UTILIZANDO TÉCNICAS DE DATA WAREHOUSING E DATA MINING

CASSIA BLONDET BARUQUE 01 February 2006 (has links)
[pt] Este trabalho objetiva o desenvolvimento de Bibliotecas Digitais de Learning Objects (LO-DLs), usando técnicas de Data Warehousing (DWing) e Data Mining (DMing). Através da abordagem de Data Warehousing pode-se correlacionar os passos principais desta técnica, que são Extração, Transformação, Carga e OLAP, com os principais serviços de Bibliotecas Tradicionais, que são Aquisição, Classificação por Assunto, Catalogação e Consulta/Análise, de forma que eles sejam processados automaticamente. Técnicas de Data Mining são incorporadas a alguns desses processos automatizando o desenvolvimento da biblioteca. Além de integrar múltiplas fontes de LOs, que estão armazenadas em diferentes SGBDs (Sistemas de Gerência de Banco de Dados) e catalogadas através de diferentes padrões de metadados, esta abordagem contribui para prover o usuário de uma maneira mais sofisticada de consulta ao acervo, mais abrangente que as usuais opções por título, autor e assunto, já que OLAP propicia acesso multidiimensional. Além disso, também contribui para melhorar a qualidade da biblioteca, uma vez que as técnicas OLAP e de Data Mining são usadas para analisar os LOs e os acessos aos mesmos. Uma atualização automática da biblioteca acontece quando há mudança no perfil do usuário. / [en] This work aims at the development of Learning Objects Digital Libraries (LO-DLs), using Data Warehousing (DWing) and Data Mining (DMining) techniques. By using the Data Warehousing approach, we will be able to correlate the main steps of this technique, which area Extraction, Transformation, Loading and OLAP, with the main services of a Traditional Library which are Acquisition, Subject Classification, Cataloging, and Searching, so that they will work in an automatic way. Data Mining techniques are incorporated in some of these processes automating the process of the development of the library. Besides integrating multiple LOs sources, which are stored in diverse DBMSs (Data Base Management Systems) and catalogued in different metadata languages, this approach contributes to providing the user with a sophisticated query to the library that is more comprehensive than the usual author, subject or title options, since OLAP allows multidimensional access. Furthermore it also contributes to the improvement of the library, since OLAP and data mining techniques are used to analyze LOs data and the access to them. An automatic refresh of the library is made when users´ profile changes.
16

Išplėstas skaitmeninių mokymosi išteklių metaduomenų modelis / Extended metadata model for digital learning resources

Kubilinskienė, Svetlana 02 April 2012 (has links)
Pagrindinis informacinių technologijų (IT) naudojimo mokymuisi tikslas – didinti mokymosi kokybę ir efektyvumą, lengvinti besimokančiojo ir mokytojo darbą. Galima išskirti dvi IT taikymo ugdymui kryptis: 1) kai naudojant IT siekiama gerinti tradicinius metodus 2) kai sukuriami nauji metodai, kuriuos taikyti įmanoma tik naudojant IT. Abiem atvejais svarbus mokytojų gerosios patirties dalijimasis, mokymosi metodų įvaldymas. Disertacinis darbas skirtas metodinių išteklių ir mokymosi metodų naudojimo problemoms, kylančioms dėl informacijos nepakankamumo mokymosi objektų (MO) metaduomenų saugyklose, spręsti. Išanalizuoti ir palyginti pagrindiniai MO metaduomenų standartų modeliai, naudojami skaitmeniniams mokymosi ištekliams formaliuoju būdu aprašyti. Ištirti MO metaduomenų standartų taikymo modelių sudarymo moksliniai ir praktiniai principai. Išanalizuoti turinio MO kūrimo modeliai, kurie užtikrina MO suderinamumą. Atliktas empirinis tyrimas leido nustatyti tolesnę tyrimo kryptį ir turėjo įtakos išplėsto MO metaduomenų taikomojo modelio kūrimui. Metaduomenų taikomojo modelio projektavimo procesą sudaro šie etapai: 1) metodinių išteklių ir mokymosi metodų objektų aprašančių metaduomenų elementų aibių išskyrimas; 2) valdomųjų žodynų, skirtų metaduomenų elementams aprašyti, formavimas siekiant užtikrinti metaduomenų suderinamumą; 3) metodinių išteklių ir mokymosi metodų objektų aprašančių metaduomenų lyginamoji analizė; 4) išplėsto MO metaduomenų modelio išbaigimas ir diegimas... [toliau žr. visą tekstą] / The key aim of using information technology (IT) in learning is to increase the learning quality and efficiency, to facilitate a learner’s and a teacher’s work. We can distinguish two main directions of IT application in training: (1) if applying IT we strive to improve the traditional methods; (2) if new methods are developed that are applicable only if IT is used. In both cases, sharing the good experience of teachers and mastering of the learning methods are of great importance. The research work is meant for solving the problems of using methodological resources and learning methods, which arise due to insufficiency of information in the metadata repositories of learning object (LO). The main models of LO metadata standards, used to describe digital learning resources in a formal way, have been analyzed and compared. Scientific and practical principles for applied model design of LO metadata standards have been explored. The content LO developing models that ensure LO compatibility have been considered. The empirical research performed enabled us to determine a further trend of research and influenced the creation of an extended LO metadata applied model. The design process of a metadata applied model consists of the following phases: 1) determination of sets of metadata elements that describe methodological resources and learning method objects, 2) composition of controlled vocabularies, aimed at description of metadata elements, with a view to ensure the compatibility... [to full text]
17

Extended metadata model for digital learning resources / Išplėstas skaitmeninių mokymosi išteklių metaduomenų modelis

Kubilinskienė, Svetlana 02 April 2012 (has links)
The key aim of using information technology (IT) in learning is to increase the learning quality and efficiency, to facilitate a learner’s and a teacher’s work. We can distinguish two main directions of IT application in training: (1) if applying IT we strive to improve the traditional methods; (2) if new methods are developed that are applicable only if IT is used. In both cases, sharing the good experience of teachers and mastering of the learning methods are of great importance. The research work is meant for solving the problems of using methodological resources and learning methods, which arise due to insufficiency of information in the metadata repositories of learning object (LO). The main models of LO metadata standards, used to describe digital learning resources in a formal way, have been analyzed and compared. Scientific and practical principles for applied model design of LO metadata standards have been explored. The content LO developing models that ensure LO compatibility have been considered. The empirical research performed enabled us to determine a further trend of research and influenced the creation of an extended LO metadata applied model. The design process of a metadata applied model consists of the following phases: 1) determination of sets of metadata elements that describe methodological resources and learning method objects, 2) composition of controlled vocabularies, aimed at description of metadata elements, with a view to ensure the compatibility... [to full text] / Pagrindinis informacinių technologijų (IT) naudojimo mokymuisi tikslas – didinti mokymosi kokybę ir efektyvumą, lengvinti besimokančiojo ir mokytojo darbą. Galima išskirti dvi IT taikymo ugdymui kryptis: 1) kai naudojant IT siekiama gerinti tradicinius metodus 2) kai sukuriami nauji metodai, kuriuos taikyti įmanoma tik naudojant IT. Abiem atvejais svarbus mokytojų gerosios patirties dalijimasis, mokymosi metodų įvaldymas. Disertacinis darbas skirtas metodinių išteklių ir mokymosi metodų naudojimo problemoms, kylančioms dėl informacijos nepakankamumo mokymosi objektų (MO) metaduomenų saugyklose, spręsti. Išanalizuoti ir palyginti pagrindiniai MO metaduomenų standartų modeliai, naudojami skaitmeniniams mokymosi ištekliams formaliuoju būdu aprašyti. Ištirti MO metaduomenų standartų taikymo modelių sudarymo moksliniai ir praktiniai principai. Išanalizuoti turinio MO kūrimo modeliai, kurie užtikrina MO suderinamumą. Atliktas empirinis tyrimas leido nustatyti tolesnę tyrimo kryptį ir turėjo įtakos išplėsto MO metaduomenų taikomojo modelio kūrimui. Metaduomenų taikomojo modelio projektavimo procesą sudaro šie etapai: 1) metodinių išteklių ir mokymosi metodų objektų aprašančių metaduomenų elementų aibių išskyrimas; 2) valdomųjų žodynų, skirtų metaduomenų elementams aprašyti, formavimas siekiant užtikrinti metaduomenų suderinamumą; 3) metodinių išteklių ir mokymosi metodų objektų aprašančių metaduomenų lyginamoji analizė; 4) išplėsto MO metaduomenų modelio išbaigimas ir diegimas... [toliau žr. visą tekstą]
18

ROAPA ? Reposit?rio de Objetos de Aprendizagem para o ensino de pesca e aquicultura / ROAPA - Repository of Learning Objects for the teaching of fishing and aquaculture

Alvim, Silvio Jos? Trindade 06 May 2016 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-23T13:32:01Z No. of bitstreams: 1 2016 - Silvio Jos? Trindade Alvim.pdf: 2247518 bytes, checksum: f99ece6b37073375f383ae996565e974 (MD5) / Made available in DSpace on 2017-10-23T13:32:01Z (GMT). No. of bitstreams: 1 2016 - Silvio Jos? Trindade Alvim.pdf: 2247518 bytes, checksum: f99ece6b37073375f383ae996565e974 (MD5) Previous issue date: 2016-05-06 / The use of technology in education has experienced a number of changes. The use of the computer as a learning tool promoter is a constant challenge for educators. The creation, classification and maintenance of digital materials with educational content are laborious but essential tasks for the good use of technologies of information and communication in education, in various levels of education. In this context, the work that follows is intended to propose the creation of a reference model for implementation of a Learning Object Repository (LOR) as well as outlining a production process of these objects and choosing a team based on roles and responsibilities modeled in the process. As methodological approach was made a literature review on the subject. Conceptual maps were used to support the planning of the repository model. For choosing the set of metadata used in the model was made a Systematic Review of Literature (SRL) and after these steps the initial software interface has been validated through a survey instrument using the Likert scale for evaluation of non-functional software requirements applied to a group of educators and students of the academic community of IFES Campus Pi?ma. It is expected that the model will serve as a subsidy for the implementation of a repository for use by technical courses of Aquaculture and Fisheries of aforementioned campus, allowing the search and use of digital educational materials for teachers and students, in a simply and efficiently way / O uso de tecnologia na educa??o tem passado por uma s?rie de mudan?as. O uso do computador como ferramenta promotora da aprendizagem ? um desafio constante para os educadores. A cria??o, classifica??o e manuten??o de materiais digitais com conte?do educacional ? uma tarefa trabalhosa mas fundamental para o bom uso das TIC na educa??o, nos mais variados n?veis de ensino. Nesse contexto, o trabalho que se segue tem por objetivo propor a cria??o de um modelo de refer?ncia para implanta??o de um Reposit?rio de Objetos de Aprendizagem (ROA) bem como delinear um processo de produ??o destes objetos e de escolha de uma equipe, baseada em pap?is e responsabilidades modeladas no processo. Como percurso metodol?gico foi feita uma revis?o bibliogr?fica sobre o assunto. Foram utilizados mapas conceituais para apoiar a planejamento do modelo de reposit?rio. Para a escolha do conjunto de metadados utilizados no modelo foi feito uma Revis?o Sistem?tica de Literatura (RSL) e ap?s essas etapas a interface inicial do software foi validada atrav?s de um instrumento de pesquisa utilizando a escala Likert, para avalia??o de requisitos n?o funcionais de software, aplicada a um grupo formado por educadores e alunos da comunidade acad?mica do IFES Campus Pi?ma. Espera-se que o modelo proposto sirva de subs?dio para implementa??o de um reposit?rio para uso pelos cursos t?cnicos de Aquicultura e Pesca do campus supracitado, permitindo a busca e utiliza??o de materiais digitais educacionais, por professores e alunos, de forma simples e eficiente
19

Sprite learning and object category recognition using invariant features

Allan, Moray January 2007 (has links)
This thesis explores the use of invariant features for learning sprites from image sequences, and for recognising object categories in images. A popular framework for the interpretation of image sequences is the layers or sprite model of e.g. Wang and Adelson (1994), Irani et al. (1994). Jojic and Frey (2001) provide a generative probabilistic model framework for this task, but their algorithm is slow as it needs to search over discretised transformations (e.g. translations, or affines) for each layer. We show that by using invariant features (e.g. Lowe’s SIFT features) and clustering their motions we can reduce or eliminate the search and thus learn the sprites much faster. The algorithm is demonstrated on example image sequences. We introduce the Generative Template of Features (GTF), a parts-based model for visual object category detection. The GTF consists of a number of parts, and for each part there is a corresponding spatial location distribution and a distribution over ‘visual words’ (clusters of invariant features). We evaluate the performance of the GTF model for object localisation as compared to other techniques, and show that such a relatively simple model can give state-of- the-art performance. We also discuss the connection of the GTF to Hough-transform-like methods for object localisation.
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Objetos de aprendizagem no ensino de língua materna: novos gestos de leitura / Learning objects in mother tongue teaching: new reading practices

Souza, Esther Ribeiro Lino Favero de 13 August 2015 (has links)
O mundo passa por constantes transformações e a educação deve acompanhar esta demanda, já que as mudanças refletem direta e indiretamente na maneira de as pessoas agirem e, consequentemente, na forma de aprenderem. Desse modo, é possível dizer que a tecnologia vem afetando a aprendizagem da língua materna. Por esse motivo, apresentamos uma pesquisa que acredita que as práticas de leitura na sala de aula precisam ser revisadas e adaptadas para um novo público, que é, em decorrência da tecnologia, muito dinâmico. A partir de um diagnóstico que considera esses aspectos, este trabalho tem por objetivo analisar e discutir uma nova forma de inserir a leitura de texto literário no contexto educacional atual por meio dos objetos de aprendizagem. Assim, a pesquisa averigua de que modo os objetos de aprendizagens podem significar e ressignificar a compreensão do texto literário no momento pós-leitura. Para tanto, observamos por meio de uma pesquisa qualitativa, com ênfase no estudo de caso, as estratégias utilizadas pelos estudantes para compreender um texto multimodal e, ainda, observamos o impacto dessa leitura no processo de construção de sentido. O levantamento de dados aconteceu com a aplicação de uma Sequência Didática aos alunos do 9º B da EMEF Padre Domingos Zatti, escola municipal localizada na cidade de Campinas. A partir da realização das atividades, por meio de critérios descritos ao longo deste trabalho, são escolhidos três alunos para o estudo de caso. Nesse procedimento metodológico, os estudantes passam por entrevista durante a leitura de O Corvo texto de Edgar Allan Poe inicialmente por meio do suporte físico papel e, em seguida, por meio do suporte físico digital, tela do computador, com utilização de um objeto de aprendizagem. Após as leituras, também respondem a algumas questões propostas pela pesquisadora. Todas as respostas geram dados que são transcritos e analisados. A partir desse material, observamos que o uso dos objetos educacionais em aulas de leitura pode estimular os alunos a uma prática leitora com níveis de compreensão mais produtivo, já que o texto multimodal pressupõe o uso de mais de uma modalidade, facilitando a construção de sentido. No entanto, os resultados nos mostram que a leitura de um texto multimodal por meio da tecnologia só pode otimizar o processo de compreensão se estiver atrelado a um método pedagógico eficaz, que considera a prática situada, ou seja, o aluno e a sua cultura. Assim, é possível concluir que a prática docente com utilização da tecnologia não é melhor do que a prática sem o uso de aparatos tecnológicos da atualidade, apenas diferente. E, por isso, requer uma postura docente diferente, pois os estudantes têm novos gestos de leitura a partir de um texto multimodal. / The world is going through constant changes and education should follow this demand, since the changes reflect directly and indirectly in the way people act and, consequently, the way they learn. Thus, we can say that technology has affected the way of learning of our mother tongue. By this reason, we present a survey that believes that reading practices in the classroom need to be revised and adapted to a new kind of audience, which is a result of technology, and became very dynamic. From a diagnosis that considers these aspects, this paper aims to examine and discuss a new way to insert the literary text reading in the current educational context through the learning objects. Along these lines, the research finds out how the learning objects can mean and give a re-signification of the literary text in the post-reading moment. Therefore, we see through a qualitative research, with an emphasis on the case study, the strategies used by the students to understand a multimodal text and we also observed the impact of reading in the construction of meaning process. Data collection took place with the application of a Didactic Sequence students of the 9th grade B EMEF Padre Domingos Zatti, a community school located in Campinas. From carrying out the activities, by the criteria described in this work, we have chosen three students for the case study. In this methodological procedure, students go through in interview while reading The Raven - from Edgar Allan Poe - initially through physical paper and then through the computer screen, using an object of learning. After the Reading section, the students also respond to some questions posed by the researcher. All responses generate data that is stored and analyzed. From this material, we found that the use of educational materials in reading classes can stimulate students to a reader with more productive and practical levels of understanding, since the multimodal text requires the use of more than one language kind, facilitating the construction of sense. However, the results also revealed that the reading of a multimodal text through technology can optimize the process of understanding if it is linked to an effective teaching method, which considers situated practice, i.e. the student and their culture. In such a way, it concludes that the teaching practice with the use of technology is not better than the practice without using today\'s technological devices, it is just different. And therefore, it requires a different teaching approach because the students have new reading gestures from a multimodal text.

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