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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.
121

Memória virtual : 50 anos da produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul

Blank, Veleida Ana January 2011 (has links)
Aborda o desenvolvimento do Website da Memória Virtual da produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul (IGeo/UFRGS), sob o ponto de vista da socialização e da divulgação da informação em ambiente de comunicação digital. O objetivo geral deste estudo é disponibilizar a memória da produção científica do curso de Geologia constituída pelo acervo documental publicado pelo IGeo/UFRGS, armazenado na Biblioteca, em ambiente Web. A pesquisa tem caráter quali-quantitativo caracterizada pela fundamentação teórica em fontes de informações bibliográficas, na seleção dos documentos que integram o inventário analítico, na análise do resultado estatístico da avaliação do Website da Memória Virtual e na compilação estatística do levantamento da literatura sobre acervos documentais científicos. As fases metodológicas do estudo foram a pesquisa bibliográfica, o inventário documental, métodos de digitalização de documentos, adoção de padrões internacionais de interoperabilidade entre bases de dados – aponta o uso do Open Archive Iniciative Protocol for Metadata Harvesting (OAI-PMH) e aplicação de técnicas de design de informação no processo de desenvolvimento do Website. Conclui-se com os seguintes resultados: inventário dos 50 anos de produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul, compreendendo o período de 1957-2007, identifica os principais temas, autores e tipos documentais produzidos e publicação do Website da Memória Virtual, disponível em <http://www.memoriavirtual.ufrgs.br/>. / Addresses the development of the Website of Virtual Memory of the Scientific Production from the Geology undergraduate course of the Institute of Geosciences from the Federal University of Rio Grande do Sul (IGeo/UFRGS), from the point of view of socialization and dissemination of the information in the digital communication environment. The aim of this study is to provide the memory of the scientific production of the Geology course of the collection of documents published by Igeo/UFRGS stored in the Library, in a Web environment. The research is of qualitative and quantitative nature and it is characterized by the theoretical sources of bibliographic information, the selection of documents that make up the analytical inventory, the analysis of the statistical outcome of the evaluation of the Website of Virtual Memory, and compiling statistical survey of the literature on scientific document collections. The methodological steps of the study were: a literature review, inventory of the documents, document scanning methods, adoption of international standards for interoperability between databases - focused on the Open Archive Initiative Protocol for Metadata Harvesting (OAI-PMH) and application of techniques of information design in the process of the website development. In conclusion we have the following results: inventory of the 50 years of scientific production in the course of the Geosciences Institute of Geology, Federal University of Rio Grande do Sul, including the period 1957-2007, identifing the main topics, authors and type of documents produced and the publication of the Virtual Memory Website, available at <http://www.memoriavirtual.ufrgs.br/ >.
122

Memória virtual : 50 anos da produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul

Blank, Veleida Ana January 2011 (has links)
Aborda o desenvolvimento do Website da Memória Virtual da produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul (IGeo/UFRGS), sob o ponto de vista da socialização e da divulgação da informação em ambiente de comunicação digital. O objetivo geral deste estudo é disponibilizar a memória da produção científica do curso de Geologia constituída pelo acervo documental publicado pelo IGeo/UFRGS, armazenado na Biblioteca, em ambiente Web. A pesquisa tem caráter quali-quantitativo caracterizada pela fundamentação teórica em fontes de informações bibliográficas, na seleção dos documentos que integram o inventário analítico, na análise do resultado estatístico da avaliação do Website da Memória Virtual e na compilação estatística do levantamento da literatura sobre acervos documentais científicos. As fases metodológicas do estudo foram a pesquisa bibliográfica, o inventário documental, métodos de digitalização de documentos, adoção de padrões internacionais de interoperabilidade entre bases de dados – aponta o uso do Open Archive Iniciative Protocol for Metadata Harvesting (OAI-PMH) e aplicação de técnicas de design de informação no processo de desenvolvimento do Website. Conclui-se com os seguintes resultados: inventário dos 50 anos de produção científica do curso de Geologia do Instituto de Geociências da Universidade Federal do Rio Grande do Sul, compreendendo o período de 1957-2007, identifica os principais temas, autores e tipos documentais produzidos e publicação do Website da Memória Virtual, disponível em <http://www.memoriavirtual.ufrgs.br/>. / Addresses the development of the Website of Virtual Memory of the Scientific Production from the Geology undergraduate course of the Institute of Geosciences from the Federal University of Rio Grande do Sul (IGeo/UFRGS), from the point of view of socialization and dissemination of the information in the digital communication environment. The aim of this study is to provide the memory of the scientific production of the Geology course of the collection of documents published by Igeo/UFRGS stored in the Library, in a Web environment. The research is of qualitative and quantitative nature and it is characterized by the theoretical sources of bibliographic information, the selection of documents that make up the analytical inventory, the analysis of the statistical outcome of the evaluation of the Website of Virtual Memory, and compiling statistical survey of the literature on scientific document collections. The methodological steps of the study were: a literature review, inventory of the documents, document scanning methods, adoption of international standards for interoperability between databases - focused on the Open Archive Initiative Protocol for Metadata Harvesting (OAI-PMH) and application of techniques of information design in the process of the website development. In conclusion we have the following results: inventory of the 50 years of scientific production in the course of the Geosciences Institute of Geology, Federal University of Rio Grande do Sul, including the period 1957-2007, identifing the main topics, authors and type of documents produced and the publication of the Virtual Memory Website, available at <http://www.memoriavirtual.ufrgs.br/ >.
123

Repositório digital na universidade pública: o caso da Biblioteca Digital de Teses e Dissertações da Universidade do Estado do Rio de Janeiro (UERJ)

Silva, Neusa Cardim da 25 March 2011 (has links)
Made available in DSpace on 2015-10-19T11:50:19Z (GMT). No. of bitstreams: 1 cardim2011.pdf: 5207297 bytes, checksum: 8545034ffb818697384c9ba34800b44c (MD5) Previous issue date: 2011-03-25 / It presents an overview of the Graduate Programs in Brazil and at the State University of Rio de Janeiro (UERJ) to contextualize the environment in which the academic production occurs. It discusses the importance of this production in the context of scholarly communication and its presentation in the electronic media, allowing web dissemination. It shows the trajectory of digital libraries and repositories, the concepts, characteristics, functions and movements of open archives - which enabled interoperability between systems and information sharing among scientists and researchers / Apresenta o panorama dos Programas de Pós-Graduação no Brasil e os oferecidos na Universidade do Estado do Rio de Janeiro (UERJ), para contextualizar o ambiente em que a produção acadêmica desses programas ocorre. Aborda a importância dessa produção no contexto da comunicação científica e sua apresentação em mídia eletrônica. Revela a trajetória das bibliotecas digitais e dos repositórios digitais, os conceitos, especificidades, funções e os movimentos dos arquivos abertos que possibilitou a interoperabilidade entre sistemas e o compartilhamento de informações entre cientistas e pesquisadores
124

Biblioteca virtual temática em saúde focada nas necessidades do usuário e na usabilidade

Fonseca, Leandro Guedes da 28 March 2012 (has links)
Made available in DSpace on 2015-10-19T11:50:25Z (GMT). No. of bitstreams: 1 fonseca2012.pdf: 1503515 bytes, checksum: 598b272f4aa2f20b7b0a36372f9a404f (MD5) Previous issue date: 2012-03-28 / This work discusses usability features that can be applied on interfaces for virtual libraries, to meet differences in interaction and information needs of different users. It presents the emergence and popularization of the Internet and presents it as a determining factor for the development of thematic virtual libraries. It presents the history of libraries and proposes subsidies for the creation of thematic virtual libraries issues aimed to meet the needs of users. It introduces the concept of information and health information. It discusses the interdisciplinary relations of Information Science with Cognitive Science. It demonstrates, through a focus group study on information needs of potential users of a thematic virtual library. It talks about usability in virtual libraries and usability features as parameters for meeting the needs of users. We conclude that the heuristic evaluation and usability principles raised in the literature and the current technical standards on the subject present subsidies for improvement of thematic virtual libraries and we consider the views gathered in focus groups are important contributions to the improvement of processes in a thematic virtual library in health. / Aborda o levantamento de características de usabilidade que possam ser aplicadas em interfaces de bibliotecas virtuais, para atender diferenças de interação e necessidades informacionais de usuários distintos. Demonstra o surgimento e a popularização da Internet e o apresenta como fator determinante para o desenvolvimento das bibliotecas virtuais. Discorre sobre a história das bibliotecas e propõe subsídios para a criação de bibliotecas virtuais temáticas voltadas para atender as necessidades dos usuários. Apresenta o conceito de informação e informação em saúde. Aborda as relações interdisciplinares da Ciência da Informação com as Ciências Cognitivas. Demonstra, através de grupo focal, estudo sobre necessidades informacionais de usuários potenciais de biblioteca virtual temática em saúde. Discorre a respeito de usabilidade em bibliotecas virtuais e apresenta a usabilidade como parâmetro para atendimento às necessidades dos usuários. Conclui que a avaliação heurística e os preceitos de usabilidade levantados na literatura e as normas técnicas vigentes sobre o tema apresentam subsídios para aprimoramento de bibliotecas virtuais temáticas e considera que as opiniões colhidas no grupo focal são contribuições importantes para a melhoria de processos de uma biblioteca virtual temática em saúde
125

Digitální knihovna / Digital Library

Krbeček, Daniel January 2008 (has links)
The thesis contains basic information about image documents digitalization. A brief list of common used standards in Czech republic is shown. The standards can be used in description of digitalized documents by institutions such as libraries, scientific departments and universities. The thesis specifically solves the dilemma of the preservation and the accessing of B.P.Molls large map collection stored in Moravian Library in Brno city. It analyses step by step the characteristics of the saved documents, style of their interlacing and data representation. In terms of deposition and manipulation it comes with description list of open-source digital libraries and it chooses the Fedora repository. It solves methods of object-model implementation while using this digital library. The functional parts are web presentation of the mentioned map collection and an effectiveness test showing large-scale maps using the flash Zoomify browser. Web presentation uses the repository services as often as possible, and thus allows searching and searching through the bibliographic records of the presented documents. The end of the thesis sums up the obtained results and presents the incoming development course of presentation and popularization of the map collection.
126

Virtual Communities in Egypt - The Digital Library as a Model

Ghonim, Ibrahim Ahmad January 2010 (has links)
No description available.
127

Zpracování časopiseckých článků pro digitální knihovnu. / Processing Journal Articles For a Digital Library

Šlapáková, Ivana January 2014 (has links)
(in English): The aim of presented master thesis is to suggest the optimization of articles processing in the Digital Library of the Academy of Sciences of the Czech Republic. The present state of journal articles processing is described and the weaknesses are evaluated. The journal articles processing optimization is suggested in two steps. The first step is to choose only one integrated library system for journal articles processing. The second step is using the system of shared cataloging and the proper use of three external resources. The main contribution of this thesis is the deep evaluation of the external journal articles records resources and the process of shared cataloging. Fifteen journals were proposed to the process of shared cataloging and record downloading but only five of them are suitable for this process.
128

Does it matter where we test?

Greifeneder, Elke 12 July 2012 (has links)
Die Benutzerforschung zu digitalen Bibliotheken sieht sich aktuell zwei Herausforderungen gegenüber: dem Bestreben, Studien vermehrt über das Internet durchzuführen, und dem Wunsch, Benutzerverhalten in natürlichen Umgebungen statt in Laborsituationen zu erforschen. Asynchrone Remote-(Usability-)Tests sind eine methodische Herangehensweise, die möglicherweise die Lösung beider Bedürfnisse sind. Sie erlauben Personen die Teilnahme an einer Studie zu einem Zeitpunkt und an einem Ort ihrer Wahl; der Ort der Wahl entspricht dabei i.d.R der natürlichen Nutzungsumgebung der Teilnehmer. Da die Validität einer Studie von der Qualität der Daten abhängt, ist es für die Forschung sehr wichtig, die möglichen Einflüsse von Ablenkungen in der natürlichen Umgebung auf das Nutzerverhalten in der Testsituation zu bedenken. Das Dissertationsprojekt untersuchte, inwieweit asynchrone Remote-Studien aufgrund von störenden Ablenkungsfaktoren systematischen Fehler bei der Evaluierung digitaler Bibliotheken produzieren. In einem Experiment wurde das Vorhandensein von Ablenkung während der Testdurchführung in natürlichen Umgebungen ermittelt sowie der Einfluss dieser Ablenkung auf das Nutzungsverhalten analysiert. Experimentell wurde die Zeit gemessen, die Teilnehmer in einem Labor und Teilnehmer in ihrer natürlichen Umgebung zur Fertigstellung des Tests benötigten. Die Ergebnisse des Experiments zeigen, dass die Teilnehmer während der Studie stark abgelenkt waren und dass sie in ihrer natürlichen Umgebung deutlich mehr Zeit für denselben Test benötigten. Der Ort der Testdurchführung beeinträchtigte jedoch statistisch gesehen weder die Erledigung der Aufgaben noch die abgegebenen Bewertungen der Teilnehmer noch ihren Entscheidungsprozess. Aus den Ergebnissen folgt, dass der Ort der Testdurchführung nicht relevant ist, aber dass es von großer Bedeutung für die Validität der Daten ist, im Test zu erheben, was während der Durchführung in der natürlichen Umgebung des Teilnehmers geschieht. / User studies in digital libraries face two fundamental challenges. The first is the necessity of running more user studies in an online environment. Users can access digital library collections and services worldwide and the services should be usable at any time. This need for more online studies is coupled with a second need, a demand to test under realistic conditions outside of laboratories in users’ natural environment. Asynchronous remote usability tests are a methodological approach that might answer both needs: they allow participants to take part in a study at a time and place of their choice, often in the participants’ natural environment. Any chosen place, however, might be noisy. Distractions are ubiquitous in a user’s natural environment. An awareness of the potential influences of distractions on users’ behavior during test situations is of great importance, because the validity of a study depends on the quality of the data. If an instrument allows systematic mistakes in measurements because of distractions, the validity is at risk. This dissertation examined if distraction in the users’ natural environment produces a systematic mistake in digital library studies that take place at a time and location of participants’ choice. In order to investigate the existence of distractions during online user studies in digital libraries and to analyze the influence(s) of that distraction, a psychological experiment was set up. It ex¬amined completion time scores between participants in a laboratory and participants in their natural environment. The results of the experiment showed that participants were highly distracted and that participants in their natural environment needed more time to complete the same test. The setting did not affect successful task completions, the participants’ judgments of sites or their decision-making processes. This work can conclude that it does not matter where we test, but it matters what happens during the test.
129

Získávání znalostí z textových dat / Knowledge Discovery in Text

Smékal, Luděk January 2007 (has links)
This MSc Thesis handles with so-called data mining. Data mining is about obtaining some data or informations from databases, where these data or informations are not directly visible, but they are accessible by using special algorithms. This MSc Thesis mainly aims documents clasifying by selected method in scope of digital library. The selected method is based on sets of items called "itemsets method". This method extends Apriori algorithm application field originally designed for transaction databases processing and generation of sets of frequented items.
130

Country and language level differences in multilingual digital libraries

Gäde, Maria 07 April 2014 (has links)
Während die Bedeutung von mehrsprachigem Zugang zu Informationssystemen unumstritten ist, bleibt es unklar, ob und in welchem Umfang Systemfunktionalitäten und -oberflächen sowie das Interaktionsdesign an länder- bzw. sprachspezifisches Nutzerverhalten angepasst werden muss und sollte. Die Dissertation legt den Fokus auf die Identifikation von länder- und sprachspezifischen Unterschieden in Interaktionen mit dem Informationssystem als entscheidende Voraussetzung für die Entwicklung von mehrsprachigen Digitalen Bibliotheken. Durch den Mangel an vergleichbaren Studien -und Analyseansätzen, identifiziert die Studie zunächst Indikatoren, die auf Unterschiede im Verhalten von Nutzern aus unterschiedlichen Ländern und aus unterschiedlichen Sprachgruppen hinweisen können. Basierend auf der Selektion von Indikatoren wurde für die Arbeit ein individuell auf die Problematik von mehrsprachigem Zugang zu Informationssystemen angepasstes Logformat und Analysetool entwickelt, der Europeana Language Logger (ELL). Auf der Grundlage aller Variablen wurden Länderprofile erstellt und grafisch umgesetzt. Diese eignen sich für die Beschreibung und den Vergleich von länder- und sprachspezifischen Interaktionen innerhalb eines bestimmten Systems. Um die Erkenntnisse aus der Fallstudie verallgemeinern können, wurde auf der Basis einer Clusteranalyse eine Gewichtung von starken und schwachen Variablen für die Identifizierung von länder- und sprachspezifischen Unterschieden vorgenommen. / While the importance of multilingual access to information systems is unquestioned, it remains unclear if and to what extent system functionalities, interfaces or interaction patterns need to be adapted according to country or language specific user behaviors. This dissertation postulates that the identification of country and language level differences in user interactions is a crucial step for designing effective multilingual digital libraries. Due to the lack of comparable studies and analysis approaches, the research in this dissertation identifies indicators that could show differences in the interactions of users from different countries or languages. A customized logging format and logger (Europeana Language Logger) is developed in order to trace these variables in a digital library. For each investigated variable, differences between country groups are presented and discussed. Country profiles are developed as a tool to visualize different characteristics in comparison. To generalize the findings from the case study, the individual variables are prioritized by determining which ones show the most significant country and language level differences.

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