757 research outputs found

    Induced aggregation operators in decision making with the Dempster-Shafer belief structure

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    We study the induced aggregation operators. The analysis begins with a revision of some basic concepts such as the induced ordered weighted averaging (IOWA) operator and the induced ordered weighted geometric (IOWG) operator. We then analyze the problem of decision making with Dempster-Shafer theory of evidence. We suggest the use of induced aggregation operators in decision making with Dempster-Shafer theory. We focus on the aggregation step and examine some of its main properties, including the distinction between descending and ascending orders and different families of induced operators. Finally, we present an illustrative example in which the results obtained using different types of aggregation operators can be seen.aggregation operators, dempster-shafer belief structure, uncertainty, iowa operator, decision making

    The induced 2-tuple linguistic generalized OWA operator and its application in linguistic decision making

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    We present the induced 2-tuple linguistic generalized ordered weighted averaging (2-TILGOWA) operator. This new aggregation operator extends previous approaches by using generalized means, order-inducing variables in the reordering of the arguments and linguistic information represented with the 2-tuple linguistic approach. Its main advantage is that it includes a wide range of linguistic aggregation operators. Thus, its analyses can be seen from different perspectives and we obtain a much more complete picture of the situation considered and are able to select the alternative that best fits with with our interests or beliefs. We further generalize the operator by using quasi-arithmetic means, and obtain the Quasi-2-TILOWA operator. We conclude this paper by analysing the applicability of this new approach in a decision-making problem concerning product management.linguistic decision making, linguistic generalized mean, 2-tuple linguistic owa operator, 2-tuple linguistic aggregation operator

    The generalized index of maximum and minimum level and its application in decision making

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    The index of maximum and minimum level is a very useful technique, especially for decision making, which uses the Hamming distance and the adequacy coefficient in the same problem. In this paper, we suggest a generalization by using generalized and quasi-arithmetic means. As a result, we will get the generalized ordered weighted averaging index of maximum and minimum level (GOWAIMAM) and the Quasi-OWAIMAAM operator. These new aggregation operators generalize a wide range of particular cases such as the generalized index of maximum and minimum level (GIMAM), the OWAIMAM, the ordered weighted quadratic averaging IMAM (OWQAIMAM), and others. We also develop an application of the new approach in a decision making problem about selection of products.generalized mean, index of maximum and minimum level, quasi-arithmetic mean, decision making, owa operator

    Twenty Years of Information Systems Frontiers

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    A PROTEÇÃO SOCIAL DE MÉDIA COMPLEXIDADE NO SUAS E A VIOLAÇÃO DE DIREITOS

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    No presente artigo, busca-se aprofundar de que forma os MunicĂ­pios de Santa Catarina, aqueles de Pequeno Porte I (atĂ© 20.000 habitantes), estĂŁo atendendo as famĂ­lias com violaçÔes de direitos, a partir da proteção social de mĂ©dia complexidade no Sistema Único de AssistĂȘncia Social - SUAS, considerando que nĂŁo contam com Centros de ReferĂȘncia Especializados de AssistĂȘncia Social – CREAS, no Ăąmbito municipal e nem com equipamentos regionalizados, competĂȘncia da gestĂŁo estadual, bem como nĂŁo contam com cofinanciamento Federal e Estadual. Diante deste contexto, os MunicĂ­pios atendem as violaçÔes de direitos, com tĂ©cnico de gestĂŁo ou equipe tĂ©cnica na gestĂŁo (assistente social e psicĂłlogo), ou ainda no prĂłprio Centro de ReferĂȘncia da AssistĂȘncia Social - CRAS. Com essa realidade queremos problematizar o atendimento das violaçÔes de direitos, considerando a inexistĂȘncia dos espaços de referĂȘncia existentes em somente 94 municĂ­pios dos 295 de SC

    O PROCESSO DE TRABALHO DOS ASSISTENTES SOCIAIS NO SUAS EM TEMPOS DE PANDEMIA DO COVID-19

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    : Neste artigo analisamos o processo de trabalho do Assistente Social em tempo de precarização das PolĂ­ticas Sociais e da PolĂ­tica de AssistĂȘncia Social em Tempos de pandemia covid-19. O artigo foi elaborado a partir da disciplina Trabalho e Teoria de Valor em Marx, da PĂłs-Graduação em Serviço Social da UFSC, e da vivĂȘncia das autoras na PolĂ­tica de AssistĂȘncia Social. Apresenta-se aspectos relativos a pandemia da COVID-19, buscando discutir os caminhos que percorrem a precarização das PolĂ­ticas Sociais frente a mercadorização e a financeirização dos direitos sociais, que impacta diretamente no processo de trabalho, trazendo como foco de reflexĂŁo da atuação dos assistentes sociais na PolĂ­tica de AssistĂȘncia Social e as mudanças significativas que implicaram o trabalho neste polĂ­tica pĂșblica. ConcluĂ­mos que as PolĂ­ticas Sociais no atual cenĂĄrio, vem para incrementar a ação de um Estado, opressor, facista e mercadorizado, que cria situaçÔes para retirar direitos sociais

    Mapping knowledge management research: a bibliometric overview

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    In recent years, knowledge management (KM) has consistently attained considerably growing research attention. Consequently, several literature reviews have been performed addressing different topic areas of KM. This paper seeks to present a comprehensive bibliometric and network analysis on KM to understand its development from the perspective of academic communities. Subsequently, it seeks to identify the structure of associations between prior and current themes, predict emerging trends and offer a longitudinal perspective on KM research. This study used web of science database and the initial sample was trimmed down by considering only the articles contributing to KM literature, and further 8,721 KM papers published in the last 30 years were systematically evaluated. The descriptive statistics and science mapping methods employing co-citation analysis were performed with VOSviewer software. In the descriptive analysis, we have analysed publication trends over time, geographical localization of the contributing institutions, journals, most prolific authors, top-performing institutions and most cited articles. Science mapping analysis is based on co-word analysis and co-citations analysis, namely articles’ co-citations and authors’ co-citations. The main findings of this paper will help researchers and academicians to develop knowledge in a specific sub-field by analysing the research outcomes of the papers included in the body of literature. First published online 28 December 202
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