Made available in DSpace on 2015-10-19T11:50:25Z (GMT). No. of bitstreams: 1 sousa2012.pdf: 3705794 bytes, checksum: 6faef66238e62b646a9ccd8ce1cc6df9 (MD5) Previous issue date: 2012-03-20 / It discusses issues related to classification and knowledge organization, folksonomy, information retrieval and the theories of chaos and complexity in systems, in order to approach the concepts needed to conduct the investigation. Approaches classification since its innate character, through the philosophical studies started in antiquity, even to the scientific approach to design of bibliographic classifications, and the classifications that have been used for organizing information in the Web 2.0 era. The theoretical discussion is developed on the theories of chaos and complexity in systems and their relationship with social networking sites. In particular with the social network Twitter which is a network of messages posted by users of the system, limited to 140 characters, without forming user groups by communities or groups of interest, as it is common in other social networks. The exploratory and empirical research shows the use and purpose of hashtags in Twitter, highlighting the role of collaboration in the choice of terms. Concludes that collaboration is essential to make information retrieval more effective, as well as acting in the convergence of knowledge / Aborda temas relacionados à classificação e organização do conhecimento, folksonomia, recuperação da informação e às teorias do caos e da complexidade em sistemas, com o objetivo de constituir o campo conceitual necessário para conduzir a investigação. Trata a classificação desde o seu caráter inato, passando pelos estudos filosóficos iniciados na antiguidade, chegando até a abordagem científica da concepção das classificações bibliográficas e das classificações que vem sendo utilizadas para a organização da informação na era da Web 2.0. Num segundo momento, a discussão teórica se desenvolve nas teorias do caos e da complexidade em sistemas e suas relações com as redes sociais na Internet, em particular, com a rede social Twitter que é uma rede de mensagens postadas pelos usuários do sistema, limitadas a 140 caracteres, sem o agrupamento dos usuários por comunidades ou grupos de interesse, como é comum em outras redes sociais. A pesquisa exploratória e empírica evidencia o uso e as finalidades das hashtags no Twitter, destacando o papel da colaboração na escolha dos termos. Conclui que a colaboração é essencial para tornar a recuperação da informação mais efetiva, além de atuar na convergência de saberes

Estudo comparativo das propostas da Web Semântica e da Web Pragmática, com base nas teorias da organização e recuperação de informações, com o objetivo de propor uma modelagem de representação de dados, que inclua contextos, para melhorar a qualidade dos processos informacionais. Dirige-se o foco da pesquisa aos problemas da representação e recuperação de informações em acervos bibliográficos, principalmente com o uso de RDF e Topic Maps. Para isso, são apresentadas as origens da Web Semântica e da Web Pragmática e os conceitos fundamentais relacionados a esse ambiente, tais como linguagem, representação e recuperação da informação e do conhecimento; termos e terminologia; semântica e pragmática. A metodologia do trabalho foi construída a partir da análise e discussão dos conceitos fundamentais, a modelagem em Diagrama Entidade-Relacionamento e a codificação em RDF e XTM para representar contextos, aplicados a um repositório de textos científicos. Com base na análise crítica das propostas de organização e recuperação de informação das Web Semântica e Web Pragmática, apresenta-se uma proposta de representação de informações com contexto que poderá contribuir para melhorar a relevância dos resultados da recuperação de informações na WWW. Os contextos representados são: Citações, Domínio de Origem do Documento, Domínio da Palavra-Chave, Áreas de Formação do Indivíduo, Áreas de Publicação do Indivíduo, Áreas de Publicação da Revista e Interesses do Indivíduo. A pesquisa permitiu observar que há limites para introduzir contextos em sistemas de informação e compreender, também, que termos como semântica e pragmática requerem abordagem crítica. De fato, a operacionalização de conceitos semânticos e pragmáticos ainda está longe de ser realidade nos sistemas de informação contemporâneos no contexto da www. É importante ressaltar que a presente pesquisa tem cunho interdisciplinar por abordar problemas discutidos tanto na Ciência da Computação como na Ciência da Informação. Esta abordagem interdisciplinar ocorre, em primeiro lugar, porque o objeto de pesquisa, embora tenha origem na Ciência da Computação, requer as teorias e métodos da representação da informação estudados na Ciência da Informação para ser desenvolvido de forma adequada. / Comparative study of the proposals of the Semantic Web and Pragmatic Web, based on the information organization and retrieval studies, in order to propose a model that includes contexts to improve the quality of information retrieval processes. Information representation and retrieval in library collections are the focus of the approach, especially with the use of RDF and Topic Maps. For the development of this research, the origins of the Semantic Web and Pragmatic Web and its fundamental concepts such as language, information and knowledge representation and retrieval; terms and terminology; semantics and pragmatics were discussed. The methodology of this work consisted of the analysis and discussion of key concepts, such as Entity-Relationship Diagram modeling and encoding in RDF and XTM to represent contexts, applied to a repository of scientific texts. Based on the critical analysis of proposed information organization and retrieval from the Semantic Web and Pragmatic Web, it is proposed an information representation with context that could improve the of relevance of the results of information retrieval processes in WWW. The contexts represented were: Quotation, Document Source Domain, Keyword Domain, Person\'s Education Areas, Person\'s Publication Areas, Journal\'s Publication Areas and Person\'s Interests. This research allowed to undestand that there are limits to introduce contexts in information systems and that terms such as semantic and pragmatic require critical approach. Indeed, the operationalization of semantic and pragmatic concepts is still far from reality in contemporary information systems in the context of www. This research has interdisciplinary nature by addressing problems discussed both in Computer Science and in Information Science. The interdisciplinary approach was adopted because the object of research, although originated in Computer Science requires the to be appropriately developed, theories and methods of information representation studied in Information Science.

La centralisation des données patients au sein de répertoires numériques soulève des problématiques d’interopérabilité avec les différents systèmes d’information médicaux tels que ceux utilisés en clinique, à la pharmacie ou dans les laboratoires d’analyse. Les instances de santé publique, en charge de développer et de déployer ces dossiers, recommandent l’utilisation de standards pour structurer (syntaxe) et coder l’information (sémantique). Pour les données du diagnostic in vitro (DIV) deux standards sémantiques sont largement préconisés : - la terminologie LOINC® (Logical Observation Identifier Names and Codes) pour représenter les tests de laboratoire ;- l’ontologie SNOMED CT® (Systematized Nomenclature Of MEDicine Clinical Terms) pour exprimer les résultats observés.Ce travail de thèse s’articule autour des problématiques d’interopérabilité sémantique en microbiologie clinique avec deux axes principaux : Comment aligner un Système Organisé de Connaissances du DIV en microbiologie avec l’ontologie SNOMED CT® ? Pour répondre à cet objectif j’ai pris le parti dans mon travail de thèse de développer des méthodologies d’alignement adaptées aux données du diagnostic in vitro plutôt que de proposer une méthode spécifique à l’ontologie SNOMED CT®. Les méthodes usuelles pour l’alignement d’ontologies ont été évaluées sur un alignement de référence entreLOINC® et SNOMED CT®. Les plus pertinentes sont implémentées dans une librairie R, qui sert de point de départ pour créer de nouveaux alignements au sein de bioMérieux. Quels sont les bénéfices et limites d’une représentation formelle des connaissances du DIV ? Pour répondre à cet objectif je me suis intéressée à la formalisation du couple <Test—Résultat>(Observation) au sein d’un compte-rendu de laboratoire. J’ai proposé un formalisme logique pour représenter les tests de la terminologie LOINC® qui a permis de montrer les bénéfices d’une représentation ontologique pour classer et requêter les tests. Dans un second temps, j’ai formalisé un patron d’observations compatible avec l’ontologie SNOMED CT® et aligné sur lesconcepts de la top-ontologie BioTopLite2. Enfin, le patron d’observation a été évaluée afin d’être utilisé au sein des systèmes d’aide à la décision en microbiologie clinique. Pour résumer, ma thèse s’inscrit dans une dynamique de partage et réutilisation des données patients. Les problématiques d’interopérabilité sémantique et de formalisation des connaissances dans le domaine du diagnostic in vitro freinent aujourd’hui encore le développement de systèmes experts. Mes travaux de recherche ont permis de lever certains de ces verrous et pourront être réutilisés dans de nouveaux systèmes intelligents en microbiologie clinique afin de surveiller par exemple l’émergence de bactéries multi-résistantes, et adapter en conséquence des thérapies antibiotiques. / The centralization of patient data in different digital repositories raises issues of interoperability with the different medical information systems, such as those used in clinics, pharmacies or in medical laboratories. The public health authorities, charged with developing and implementing these repositories, recommend the use of standards to structure (syntax) and encode (semantic) health information. For data from in vitro diagnostics (IVD) two standards are recommended: - the LOINC® terminology (Logical Observation Identifier Names and Codes) to represent laboratory tests;- the SNOMED CT® ontology (Systematized Nomenclature Of MEDicine Clinical Terms) to express the observed results.This thesis focuses on the semantic interoperability problems in clinical microbiology with two major axes: How can an IVD Knowledge Organization System be aligned with SNOMED CT®? To answer this, I opted for the development of alignment methodologies adapted to the in vitro diagnostic data rather than proposing a specific method for the SNOMED CT®. The common alignment methods are evaluated on a gold standard alignment between LOINC® and SNOMED CT®. Themost appropriate are implemented in an R library which serves as a starting point to create new alignments at bioMérieux.What are the advantages and limits of a formal representation of DIV knowledge? To answer this, I looked into the formalization of the couple ‘test-result’ (observation) in a laboratory report. I proposed a logical formalization to represent the LOINC® terminology and I demonstrated the advantages of an ontological representation to sort and query laboratory tests. As a second step, I formalized an observation pattern compatible with the SNOMED CT® ontology and aligned onthe concept of the top-ontology BioTopLite2. Finally, the observation pattern was evaluated in order to be used within clinical microbiology expert systems. To resume, my thesis addresses some issues on IVD patient data share and reuse. At present, the problems of semantic interoperability and knowledge formalization in the field of in vitro diagnostics hampers the development of expert systems. My research has enabled some of the obstacles to be raised and could be used in new intelligent clinical microbiology systems, for example in order to be able to monitor the emergence of multi resistant bacteria and consequently adapt antibiotic therapies.

Orientador: Walter Moreira / Resumo: O controle de vocabulário em periódicos científicos eletrônicos tem como finalidade minimizar ou extinguir a ambiguidade da linguagem natural para proporcionar uma linguagem artificial com vista a organização, representação e recuperação da informação. Os vocabulários controlados originados nos periódicos científicos eletrônicos deste estudo de caso são disponibilizados por meio da ferramenta VCPC Tools, e constituídos independentes, o que instiga a necessidade de mapear e torná-los interoperáveis. A contribuição pretendida com a realização deste estudo é a ampliação das condições de realizar inferências sobre a interoperabilidade entre Sistemas de Organização do Conhecimento e aplicá-las em periódicos científicos eletrônicos gerenciados pelo OJS que já fazem uso de vocabulário controlado. Busca-se responder a questão: como recuperar a informação em periódicos científicos eletrônicos por meio de vocabulários controlados mapeados a partir das palavras-chave em um modelo de interoperabilidade? Partiu-se da hipótese inicial de que os vocabulários controlados aplicados a periódicos científicos eletrônicos, gerenciados pelo OJS, podem ser considerados um instrumento interoperável para melhorar os processos de busca e recuperação dos artigos, bem como subsidiar os autores (no momento de atribuir) e os usuários na operação de encontrar, na consulta por meio de termos que representem, de modo mais eficaz, a sua pesquisa. Defende-se a tese de que o controle de vocabulário interoperáve... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Vocabulary control in electronic scientific journals aims to minimize or extinguish the ambiguity of natural language, in order to provide an artificial language heading towards organizing, representing and retrieving information. The controlled vocabularies originated in the electronic scientific journals, in this case study, are made available through VCPC Tools, as independently set device, which instigates the need to map and make them interoperable. The intended contribution, with the accomplishment of this study, is to widely enable users to make inferences about the interoperability between SOCs – Knowledge Organization Systems, and to apply them in electronic scientific journals managed by the OJS – Open Journal Systems, that already utilize controlled vocabulary. The question to be answered is: how to retrieve information in electronic scientific journals through controlled vocabularies mapped from keywords in an interoperability model? The initial hypothesis is that the controlled vocabularies when applied to electronic scientific journals, managed by the OJS, can be considered as an interoperable instrument to improve the processes of searching and retrieving articles, and constitute the basis for the authors (when assigning keywords) and for users (in the operation of finding) to properly search, through more effective terms and refined access. The thesis being held is that interoperable controlled vocabulary, in a context of a huge amount of scientific production... (Complete abstract click electronic access below) / Doutor

Archiv' ist bei Foucault der Titel für eine historische Größe der Wissensgeschichte, die unter bestimmten Bedingungen der Sagbarkeit zustande kommt und diese zugleich wirksam macht: 'Das Archiv ist zunächst das Gesetz dessen, was gesagt werden kann, das System, das das Erscheinen der Aussagen als einzelner Ereignisse beherrscht. Aber das Archiv ist auch das, was bewirkt, daß all diese gesagten Dinge sich nicht bis ins Unendliche in einer amorphen Vielfalt anhäufen, sich auch nicht in eine bruchlose Linearität einschreiben und nicht allein schon bei zufälligen äußeren Umständen verschwinden; sondern daß sie sich in distinkten Figuren anordnen, sich aufgrund vielfältiger Beziehungen miteinander verbinden, gemäß spezifischen Regelmäßigkeiten sich behaupten ( ... ).' Archiv in diesem Sinn ist so etwas wie ein Ermöglichungsgrund von Diskursivität, eine Instanz der historischen Analyse, die das Gesagte in seiner Existenz verständlich macht. In dieser Beziehung soll der Begriff im folgenden auf eine Bibliothek bezogen werden, die wie keine andere das Wissen das 17. Jahrhunderts repräsentiert. So kann man jedenfalls sprechen, wenn man im Hinblick auf die in Wolfenbüttel vollendete Büchersammlung blickt, die nicht nur die zweit- oder drittgrößte Bibliothek war, als ihr Gründer, Herzog August, 1666 starb, sondern die mit größter Wahrscheinlichkeit umfangreichste jemals von einem einzelnen Menschen mit größter Sorgfalt zusammengetragene Bibliothek überhaupt ist.

No description available.

Introduction: Ravelry is a website offering information and social media functions for people interested in knitting. All content is user-supplied, including thousands of searchable records of knitting patterns and yarns. The aim of this thesis is to describe the way these are organised and classified and how this relates to systems used in other contexts and to the expectations of site members regarding both presentation and search functions. Method: Based in domain analysis theory and the concept of serious leisure, the knitting community on Ravelry and its information databases were studied through content analysis of the website, a literature review of pattern and yarn presentation, and a user survey. Results and analysis: The presentation of products on the website contains the information expected within this domain. Users are generally satisfied with the information given but have come to expect more details here than from other sources. The search function enables specific searches, but is too complex for certain users and is sometimes seen as old-fashioned or hard to understand. Members express varying degrees of understanding of the website’s community base. Conclusion: Ravelry has set up a knowledge organisation system and presentation pages that meet its members’ expectations in terms of information content. The search function and layout is not as popular, but efficient for many respondents. This is a two years master’s thesis in Library and Information Science. / Inledning: Ravelry är en webbplats med information och sociala mediefunktioner för stickintresserade. Allt innehåll kommer från användarna, inklusive beskrivningar av tusentals sökbara stickmönster och garner. Syftet med studien är att beskriva hur dessa organiseras och klassificeras i förhållande till system som används i andra sammanhang och till medlemmarnas förväntningar. Metod: Utifrån domänanalysteori och begreppet ”serious leisure” undersöktes Ravelrys medlemmar och databaser genom innehållsanalys av webbplatsen, en litteraturstudie av mönster- och garnpresentation samt en användarenkät. Resultat och analys: Presentationen av produkter innehåller den information som förväntas inom domänen. Användarna är generellt sett nöjda med informationen som presenteras. Sökfunktionen möjliggör specificerade sökningar, men är för komplex för vissa användare och kan ses som gammaldags och svår att förstå. Medlemmarna uttrycker olika grader av förståelse för att allt material kommer från användarna. Slutsats: Ravelrys kunskapsorganisation och presentationssidor möter medlemmarnas förväntningar. Söksystemet och dess layout är inte lika populära, men effektivt för många respondenter.

Esta pesquisa apresenta o desenvolvimento de método de busca e recuperação de informações em bases de dados especializadas para produção do conhecimento científico na área da Saúde, com ênfase na Saúde Baseada em Evidências. Recorremos, neste trabalho, a diferentes metodologias considerando as especificidades de cada etapa: pesquisa exploratória, método hipotético dedutivo e estudo de caso empírico qualitativo. Mobilizamos os fundamentos teórico-metodológicos da Ciência da Informação e da Saúde nos domínios da Organização e Recuperação da Informação e do Conhecimento, Web Semântica, Saúde Baseada em Evidências e Metodologia Científica, assim como realizamos dois experimentos: estudo de caso em Ortopedia e Traumatologia no sentido de identificar e estabelecer critérios para busca, recuperação, organização e seleção de informações de modo que possam integrar parte da metodologia de trabalhos científicos na área da Saúde; e análise dos tipos de busca e recuperação e dos mapeamentos entre Sistemas de Organização do Conhecimento (SOC) propostos no Metatesauro no escopo da Unified Medical Language System (UMLS) da US National Library of Medicine e no BioPortal da National Center for Biomedical Ontology, ambos na área biomédica. O UMLS disponibiliza acesso a 151 SOC, e o BioPortal, um conjunto de 302 ontologias. Apresentam-se propostas para construção de estratégias de busca com uso de Sistemas de Organização do Conhecimento mapeados e interoperados, bem como para realização de pesquisas bibliográficas para elaboração de trabalhos científicos na área da Saúde. / This research presents the development of method for search and information retrieval in specialized databases aiming the production of scientific knowledge in healthcare, with emphasis on Evidence-Based Health. We have used, in this work, different techniques considering the specificities of each stage: exploratory research, hypothetical deductive method and qualitative empirical case study. It mobilizes the theoretical and methodological foundations in Information Science and Health, appling them to areas as knowledge organization and information retrieval, Semantic Web, Evidence-Based Health and Scientific Methodology. Two experiments were performed: a case study in Orthopedics and Traumatology in order to identify and establish criterions for search, retrieval, organization and selection of information, so that these criterions can integrate part of the methodology of scientific work in healthcare; and analysis of kinds of search and retrieval and mappings on Knowledge Organization Systems-KOS available in Metathesaurus, considering the scope of the Unified Medical Language System (UMLS) of the US National Library of Medicine (NLM), and in the BioPortal National Center for Biomedical Ontology, both in the biomedical field. The UMLS provides access to 151 KOS, and the BioPortal provides a set of 302 ontologies. We presented proposals for construction of search strategies by using Knowledge Organization System mapped and interoperate as well as for conducting literature searches for preparation of scientific papers in healthcare.

Esta pesquisa apresenta o desenvolvimento de método de busca e recuperação de informações em bases de dados especializadas para produção do conhecimento científico na área da Saúde, com ênfase na Saúde Baseada em Evidências. Recorremos, neste trabalho, a diferentes metodologias considerando as especificidades de cada etapa: pesquisa exploratória, método hipotético dedutivo e estudo de caso empírico qualitativo. Mobilizamos os fundamentos teórico-metodológicos da Ciência da Informação e da Saúde nos domínios da Organização e Recuperação da Informação e do Conhecimento, Web Semântica, Saúde Baseada em Evidências e Metodologia Científica, assim como realizamos dois experimentos: estudo de caso em Ortopedia e Traumatologia no sentido de identificar e estabelecer critérios para busca, recuperação, organização e seleção de informações de modo que possam integrar parte da metodologia de trabalhos científicos na área da Saúde; e análise dos tipos de busca e recuperação e dos mapeamentos entre Sistemas de Organização do Conhecimento (SOC) propostos no Metatesauro no escopo da Unified Medical Language System (UMLS) da US National Library of Medicine e no BioPortal da National Center for Biomedical Ontology, ambos na área biomédica. O UMLS disponibiliza acesso a 151 SOC, e o BioPortal, um conjunto de 302 ontologias. Apresentam-se propostas para construção de estratégias de busca com uso de Sistemas de Organização do Conhecimento mapeados e interoperados, bem como para realização de pesquisas bibliográficas para elaboração de trabalhos científicos na área da Saúde. / This research presents the development of method for search and information retrieval in specialized databases aiming the production of scientific knowledge in healthcare, with emphasis on Evidence-Based Health. We have used, in this work, different techniques considering the specificities of each stage: exploratory research, hypothetical deductive method and qualitative empirical case study. It mobilizes the theoretical and methodological foundations in Information Science and Health, appling them to areas as knowledge organization and information retrieval, Semantic Web, Evidence-Based Health and Scientific Methodology. Two experiments were performed: a case study in Orthopedics and Traumatology in order to identify and establish criterions for search, retrieval, organization and selection of information, so that these criterions can integrate part of the methodology of scientific work in healthcare; and analysis of kinds of search and retrieval and mappings on Knowledge Organization Systems-KOS available in Metathesaurus, considering the scope of the Unified Medical Language System (UMLS) of the US National Library of Medicine (NLM), and in the BioPortal National Center for Biomedical Ontology, both in the biomedical field. The UMLS provides access to 151 KOS, and the BioPortal provides a set of 302 ontologies. We presented proposals for construction of search strategies by using Knowledge Organization System mapped and interoperate as well as for conducting literature searches for preparation of scientific papers in healthcare.

Tout d’abord, nous abordons les problématiques liées à l’organisation et à la gestion des connaissances ainsi que les principes présidant à l’élaboration des classifications à facettes. Nous proposons ensuite une synthèse des méthodes existantes d’élaboration de classifications à facettes. Nous poursuivons en réalisant une analyse de l’impact des types de Systèmes d’Information sur l’activité de gestion de l’information. Ce faisant, nous produisons une analyse de l’activité inspirée de la Théorie de l’Activité, et influencée par les travaux de la psychologie du travail et de l’ergonomie cognitive. Le prototype Hypertagging développé dans le cadre du projet Miipa-Doc fondé sur le tagging des utilisateurs et structuré par les principes de la classification à facettes est présenté. Notre expérimentation sur l’élaboration de classifications à facettes pour la gestion des documents de travail est détaillée. Enfin, nous exposons notre méthodologie d’élaboration de FolkClassifications à facettes pour la gestion des connaissances métier. Elle vise à appuyer une démarche de gestion des connaissances sur la gestion personnelle de l’information / We address Knowledge Organization and Knowldege Management general issues and we present the basic principles for the development of faceted classifications. Then we introduce a synthesis of existing methods to develop this kind of classification. Next we propose an analysis of effects of Information Systems on information management activities. By doing this, we produce an analysis of the concept of activity inspired by Activity Theory, occupational psychology and french ergonomics. A presentation of Hypertagging prototype developed in the frame of Miipa-Doc research project, based on users tagging and structured by faceted classification principles, is provided. Our experiment about generating faceted classification for document management activities is detailed. Finally, we expose our method for the development of faceted classification for Knowledge Management purposes in the context of specific trades. This Knowledge Management approach is incorporated in Knowledge Organization activities.