77 resultados para Knowledge organization systems


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Desde o final do século XX, as novas formas de produção documental e as novas tecnologias de informação apresentadas à Arquivística têm levado os profissionais da informação a repensar os conceitos e princípios arquivísticos postulados nos antigos manuais da área. Nesse contexto, destaca-se a produção arquivística canadense, que transformou o país em solo fértil para as discussões que circundam a disciplina na contemporaneidade, representando muito bem as necessidades colocadas pelos novos meios de produção documental aos arquivistas na sociedade da informação, redescobrindo princípios e (re) definindo conceitos, métodos e critérios para a criação, manutenção e uso de documentos em meio tradicional e eletrônico. Foi notadamente na década de 1980, que um novo paradigma se enunciou na área e, a partir dele, três correntes emergiram: a Arquivística Integrada - enunciada pela Escola de Québec - que propõe a reintegração da disciplina por meio do ciclo vital dos documentos e uma possível aproximação com a Ciência da Informação, graças à incorporação do termo informação orgânica registrada, como substituição ao termo documento de arquivo; a Arquivística Funcional ou Pós-Moderna, enunciada por Terry Cook - que propõe uma renovação e reformulação dos princípios e conceitos originais da disciplina, adotando a corrente Pós-moderna como pano de fundo; e a Diplomática Arquivística, enunciada primeiramente na Itália por Paola Carucci, mas desenvolvida e reformulada na América do Norte por Luciana Duranti, que busca, por meio do estudo da Diplomática, estabelecer critérios para a crítica textual dos documentos contemporâneos, garantindo ao método diplomático um posto fundamental na Arquivística contemporânea. A vista de tais aspectos, analisa-se, comparativamente, o universo epistemológico dessas três abordagens arquivísticas canadenses, enquanto perspectivas emergentes para a construção de uma disciplina contemporânea, capaz de dar conta dos novos processos de produção, organização e uso da informação orgânica registrada.

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Na atualidade a atribuição dos descritores de assuntos ou indexação do conteúdo dos livros, nem sempre está associada ao contexto concreto de cada biblioteca, provocando, em muitos casos, que a recuperação por assuntos não resulte adequada. Neste trabalho analisam-se os principais desafios e perspectivas da indexação dos livros, os avanços de análises de assuntos nos catálogos de bibliotecas, examinam-se procedimentos, instrumentos, regras e condutas utilizadas nas análises e representação do conteúdo dos livros. Também se mostra a interação entre o ensino, a pesquisa e a atuação profissional necessária para que os estudantes possam desenvolver competências na análise, na representação e na procura da informação, assim como os princípios - provavelmente menos evidentes- da organização do conhecimento. Este trabalho coloca em evidência que as políticas de gestão da informação, mais quantitativas que qualitativas, deixam num segundo plano o processamento intelectual do conteúdo prejudicando, desta maneira, a recuperação por assuntos através do catalogo da biblioteca. Finalmente, se recolhe uma serie de propostas docentes relacionadas com a atribuição de descritores de assuntos em contextos bibliotecários.

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Studies on ethics in information organization have deeply contributed to the recognition of the social dimension of Information Science. The subject approach to information is linked to an ethical dimension because one of its major concerns is related to its reliability and usefulness in a specific discursive community or knowledge domain. In this direction, we propose, through an exploratory research design with qualitative and inductive characteristics, to identify the specific terminology that Brazilian indexing languages allow for terms relating to male homosexuality. We also analyzed the terms assigned to papers published in the Journal of Homosexuality, Sexualities and Journal of Gay & Lesbian Mental Health between the years 2005 to 2009. From this analysis of terms and the Brazilian indexing languages, we see (1) the Brazilian context, (2) imprecision in the terminology, (3) indications of prejudices disseminated by political correctness, (4) biased representation of the subject matter, (5) and the presence of figures of speech.

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The increase of computing power of the microcomputers has stimulated the building of direct manipulation interfaces that allow graphical representation of Linear Programming (LP) models. This work discusses the components of such a graphical interface as the basis for a system to assist users in the process of formulating LP problems. In essence, this work proposes a methodology which considers the modelling task as divided into three stages which are specification of the Data Model, the Conceptual Model and the LP Model. The necessity for using Artificial Intelligence techniques in the problem conceptualisation and to help the model formulation task is illustrated.

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An overview is given on the possibility of controlling the status of circuit breakers (CB) in a substations with the use of a knowledge base that relates some of the operation magnitudes, mixing status variables with time variables and fuzzy sets. It is shown that even when all the magnitudes to be controlled cannot be included in the analysis, it is possible to control the desired status while supervising some important magnitudes as the voltage, power factor, and harmonic distortion, as well as the present status.

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In this paper, an expert and interactive system for developing protection system for overhead and radial distribution feeders is proposed. In this system the protective devices can be allocated through heuristic and an optimized way. In the latter one, the placement problem is modeled as a mixed integer non-linear programming, which is solved by genetic algorithm (GA). Using information stored in a database as well as a knowledge base, the computational system is able to obtain excellent conditions of selectivity and coordination for improving the feeder reliability indices. Tests for assessment of the algorithm efficiency were carried out using a real-life 660-nodes feeder. © 2006 IEEE.

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The aim of this research is to make a bibliometric analysis of the journal Scire: Representación y Organización del Conocimiento, edited in Spain, in order to evidence the most productive institutions and countries, as well as to build a cooperation network and calculate the density indicators, centrality degree and betweenness. The 292 articles of the period 1996 to 2010 were analyzed. It was found out that, of the institutions participating in the articles, 25 institutions have been clearly the most productive. Almost all of them are Spanish, except four Brazilian ones and three more from three different countries. The institutional network showed a low density, but several cooperative sub-networks were identified, which suggest the existence of an international dialogue among researchers on the discipline.

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Knowledge organization promotes advances in theoretical and applied study of concepts. This paper explores the question of semiotic backgrounds of knowledge organization, informational mediation and communication, focusing on the pragmatic-semiotic meaning of concepts. We conclude that organizing information and knowledge approaches that seek to emphasize the meaning of language used by a community must to recognize the semiotic characteristics of concepts.

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The search for a dialogical interpretation on the concept theory is the purpose of this paper. It uses the concept of dialogism, proposed by Bakhtin, which refers to the interaction occurring among the social actors in the process of (re)construction of language. Starting from the analysis of texts on concept theory authored by Dahlberg, Hjorland, Tennis and Tennis and Sutton, the convergent, divergent and complementary aspects related to the concepts advocated by the authors are discussed. The analysis revealed that, although these concepts have been built individually, they are reflections of distinct currents of thought and of the historical moments that have influenced each author's ideas. It can be argued, therefore, that the studied concepts were developed on dialogue with other authors and among themselves.

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Considering knowledge organization and representation as a theoretical line used by Information Science to face the subject approach to information, in a dialogical relation with subject cataloguing, indexing and analyse documentaire, this article carries out a domain-analysis of Scire journal (1995-2010) in order to identify the scientific production in the mentionned theoretical lines as well as their relationships. Scire constitutes an environment where members of the different paradigms have found an space to relate each other.

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The semiotics of C S. Peirce presents fundamental concepts to discover aspects of the indexing process, including representation and classes of signs. However, we still know little of its theoretical potential for subject indexing. We believe that the main difficulty in the proposals to understand the process of subject indexing based on Peircean semiotics stems from an incomplete interpretation of his semiotic system. This paper attempts to describe the contributions of Peircean semiotics to subject indexing. First, we analyze some of the concepts of the branches of semiotics, after which, we discuss strategies for conceptual approximation. Secondly, and aiming to raise the level of interlocution between the areas, we intend to argue that subject indexing is an inferential process, as explained by the second branch of semiotics. Thus, we seek to go beyond the level of speculative grammar, the first branch of semiotics, to forge a closer link with pure or critical logic, the second branch. We conclude that the indexer's work does not produce a mere reflection of what already exists in documents, but involves an instigating action to discover, through the inferential matrix, the meaning of a text in order to find the subject and the most appropriate subject added entry to the information system.

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The marine environment offers both economic and scientific potential which are relatively untapped from a biotechnological point of view. These environments whilst harsh are ironically fragile and dependent on a harmonious life form balance. Exploitation of natural resources by exhaustive wild harvesting has obvious negative environmental consequences. From a European industry perspective marine organisms are a largely underutilised resource. This is not due to lack of interest but due to a lack of choice the industry faces for cost competitive, sustainable and environmentally conscientious product alternatives. Knowledge of the biotechnological potential of marine organisms together with the development of sustainable systems for their cultivation, processing and utilisation are essential. In 2010, the European Commission recognised this need and funded a collaborative RTD/SME project under the Framework 7-Knowledge Based Bio-Economy (KBBE) Theme 2 Programme 'Sustainable culture of marine microorganisms, algae and/or invertebrates for high value added products'. The scope of that project entitled 'Sustainable Production of Biologically Active Molecules of Marine Based Origin' (BAMMBO) is outlined. Although the Union is a global leader in many technologies, it faces increasing competition from traditional rivals and emerging economies alike and must therefore improve its innovation performance. For this reason innovation is placed at the heart of a European Horizon 2020 Strategy wherein the challenge is to connect economic performance to eco performance. This article provides a synopsis of the research activities of the BAMMBO project as they fit within the wider scope of sustainable environmentally conscientious marine resource exploitation for high-value biomolecules. © 2013 Elsevier B.V.

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Pós-graduação em Ciência da Computação - IBILCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)