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In this research-in-progress, we explored LSA (Latent Semantic Analysis), a technique used for Text Mining approach. With the growing volume of unstructured data, especially text, our main objective was to uncover and systematize a... more
In this research-in-progress, we explored LSA (Latent Semantic Analysis), a technique used for Text Mining approach. With the growing volume of unstructured data, especially text, our main objective was to uncover and systematize a process in order to help researchers and practitioners to analyze and make sense in a Big Data environment. For that, we choose to work with all the titles from all researchers formally registered in Business Management PhD programs in Brazil, which resulted in 42.079 title articles from 1.600 different researchers, published between 1979 and 2016. As a result, we generate a describe a stepwise script based on Text Mining good practices in literature, that can be used for further unstructured data investigations, such as group of comments, news, interviews, and others. In addition, we demonstrate some of the main topics and key words from the investigated database
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Abstract The amount of texts available on the web is growing continuously and making sense of this unstructured data efficiently and effectively, therefore, poses a demanding challenge for organizations. Although computer science... more
Abstract The amount of texts available on the web is growing continuously and making sense of this unstructured data efficiently and effectively, therefore, poses a demanding challenge for organizations. Although computer science community has developed many techniques, there is ample room for improvement on organizational utilization of such text data, especially when referring to decision-making support. In this article, we propose and validate a framework towards an effective use of text data inside hotel industry, bringing tourism sector to this discussion. We combined three text mining techniques for text classification, sentiment analysis and topic modeling in a novelty way to allows managers to analyze guests’ comments and compares competitors in hospitality industry based on SERVQUAL. Our objective is to present an automatized process involving text data collection and analysis, improving decision-making process.
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PurposeIn a context where human–machine interaction is growing, understanding the limits between automated and human-based methods may leverage qualitative research. This paper aims to compare human and machine analyses, highlighting the... more
PurposeIn a context where human–machine interaction is growing, understanding the limits between automated and human-based methods may leverage qualitative research. This paper aims to compare human and machine analyses, highlighting the challenges and opportunities of both approaches.Design/methodology/approachThis study applied qualitative secondary analysis (QSA) with machine learning-based text mining on qualitative data from 25 interviews previously analyzed with traditional qualitative content analysis.FindingsBy analyzing both techniques' strengths and weaknesses, this study complements the results from the original research work. The previous human model failed to point to a particular aspect of the case, while the machine analysis did not recognize the sequence of time in the interviewee's discourse.Originality/valueThis study demonstrates that combining content analysis with text mining techniques improves the quality of the research output. Researchers may, theref...
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Deep Learning (DL) has become the state-of-the-art method for Natural Language Processing (NLP). During the last 5 years DL became the primary Artificial Intelligence (AI) method in the legal domain. In this work we provide a systematic... more
Deep Learning (DL) has become the state-of-the-art method for Natural Language Processing (NLP). During the last 5 years DL became the primary Artificial Intelligence (AI) method in the legal domain. In this work we provide a systematic bibliometric review of the publications that have utilized DL as the primary methodology. In particular we analyzed the performed objectives (performed tasks), the corpus utilized to train the models and promising areas of research. The sample includes a total of 137 works published between 1987 and 2020. This analysis starts with the first DL models (formerly Neural Networks) in the legal domain until the latest articles in the ongoing year. Our results show an increment of 300% on the total number of publications during the last 5 years, mainly on information extraction and classification tasks. Moreover, classification is the category with most publications with 39% of the total sample. Finally, we have identified that summarization and text generation as promising areas of research. These findings show that DL in the legal domain is currently in a growing stage, and hence it will be a promising topic of research in the coming years.
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Deep Learning has been gradually adopted as the main methodology to perform Natural Language Processing tasks on legal documents. In this work we provide a bibliometric network analysis of Deep Learning publications (formerly Neural... more
Deep Learning has been gradually adopted as the main methodology to perform Natural Language Processing tasks on legal documents. In this work we provide a bibliometric network analysis of Deep Learning publications (formerly Neural Networks) applied to the analysis of legal documents. Our study includes a total sample of 138 works published between 1987 and 2020 that used DL as primary methodology. We focused on three specific objectives: identification of the journals with more publications on the subject, a co-authorship network analysis, and an examination of the most cited works. Our results show that the publications are concentrated in a small number of specialized journals on the topic, and consequently, the number of works that use DL methodologies in the legal context is smaller compared to other areas. The co-authorship network analysis reveals four broad clusters of researchers that are time-dependent concentrated into Connectionism (1), Neural Networks (1) and Deep Learning (2). Our analysis of highly cited publications delivered 10 articles with two particular authors that centralize the network. Finally, we have found that collaboration between groups of researchers from different areas is minimal, showing a window of opportunity to increase interdisciplinary research, particularly between computer and legal research groups.
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Todos podem aprender as habilidades de ler, escrever e compreenderdados, desde que se mudem os paradigmas de ensino de data literacy.O aprendizado centrado no participante e na prática quotidiana ajuda a valorizar as ferramentas... more
Todos podem aprender as habilidades de ler, escrever e compreenderdados, desde que se mudem os paradigmas de ensino de data literacy.O aprendizado centrado no participante e na prática quotidiana ajuda a valorizar as ferramentas analíticas de baixo para cima, em um processo de “aprender fazendo”.
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Estudo propõe framework para que empresas enfrentem os novos desafios trazidos pelos algoritmos de inteligência artificial e façam uso dessas tecnologias de forma ética, responsável, confiável e segura.
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... JOAO L BECKER Faculdade cte, Cieneias Economieas, bTRGS, Brazil RAKESH tC SARIN The Fuqua School of Business, Duke University Key words: decision analysis, lotter~'-dependent expected utility, decision-tree models Abstract ...... more
... JOAO L BECKER Faculdade cte, Cieneias Economieas, bTRGS, Brazil RAKESH tC SARIN The Fuqua School of Business, Duke University Key words: decision analysis, lotter~'-dependent expected utility, decision-tree models Abstract ... U(F) = Us(X) dF(x) = Er[ur(x)]. 0 (1) ...
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Database with the transcript of 26 interviews carried out from 12/09/2017 to 11/16/2017, about the incentive policies for the internationalization of research. The interviews were conducted together with the most relevant researchers in... more
Database with the transcript of 26 interviews carried out from 12/09/2017 to 11/16/2017, about the incentive policies for the internationalization of research. The interviews were conducted together with the most relevant researchers in the ADI (Information Administration) area, divided into 4 groups, considering their experience, international insertion, leadership and position as coordinator of a master's and doctoral program in Administration. The geographical distribution of the interviewees was also considered, thus seeking to cover realities in different regions of the country. 26 researchers participated.
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*** RESUMO A presente pesquisa investiga o papel da TI nas inovacoes organizacionais e seu impacto nos sistemas de informacao. Ao analisar 519 organizacoes que passaram por programas de melhoria, ou programas de mudanca, como os de... more
*** RESUMO A presente pesquisa investiga o papel da TI nas inovacoes organizacionais e seu impacto nos sistemas de informacao. Ao analisar 519 organizacoes que passaram por programas de melhoria, ou programas de mudanca, como os de Balanced Scorecard (BSC) , Controle de Qualidade Total, ISO 9000, Gestao de Conhecimento, dentre outros, desenvolve-se um modelo de mensuracao para investigar utilizacoes organizacionais da TI, seguido de um modelo de equacoes estruturais que apresenta o impacto das utilizacoes organizacionais da TI nas caracteristicas dos sistemas de informacao. Os estudos revelaram tres variaveis latentes para utilizacoes organizacionais da TI – apoio a interacao, estruturacao e direcao da organizacao – e as influencias destas em quatro caracteristicas dos sistemas de informacao – escopo, acessibilidade, integracao e foco em decisao. Resultados da analise do modelo causal mostram que (1) apoio a interacao apresenta efeito positivo e significante em escopo, acessibilidade e integracao; (2) apoio a estruturacao apresenta efeito positivo e significante em integracao e foco em decisao e (3) apoio a direcao apresenta efeito positivo e significante em escopo e foco em decisao dos sistemas de informacao. PALAVRAS-CHAVE : Sistemas de informacao. Mudancas organizacionais. Capabilidades da TI. Modelos de mensuracao. Equacoes
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O estudo objetivou analisar a efetividade da comunicação do gerenciamento de risco nas notas explicativas considerando técnicas de text mining. A partir da análise de 241 trechos de texto de 32 instituições financeiras, utilizou-se a... more
O estudo objetivou analisar a efetividade da comunicação do gerenciamento de risco nas notas explicativas considerando técnicas de text mining. A partir da análise de 241 trechos de texto de 32 instituições financeiras, utilizou-se a similaridade de cosseno como medida de distância para avaliar a relação da variabilidade dos textos com os índices de risco Basileia e Inad90. Os resultados indicam que as notas analisadas não estão em conformidade com a OCPC 07, pois seu conteúdo não reflete a flutuação dos índices de risco. A utilidade para o usuário em processos de tomada de decisões pode ser prejudicada, dado o indício de desconexão entre os textos e a política de riscos. Apresentam-se casos de repetição integral dos trechos de texto. Como contribuição, esse artigo avança nos estudos textuais das demonstrações financeiras, indo além de análises léxicas e volumétricas, trazendo o conteúdo semântico em volume e sua relação com indicadores financeiros.
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Although some authors have stated that effective IT governance is crucial for any organization to achieve its corporate goals, little empirical research is available supporting the assumptions regarding the factors that determine the... more
Although some authors have stated that effective IT governance is crucial for any organization to achieve its corporate goals, little empirical research is available supporting the assumptions regarding the factors that determine the effectiveness of IT governance. This paper analyzes the main IT governance domains (i.e., IT strategic alignment, IT risk management, IT value delivery, IT resource management, and IT performance management) and the presence of several IT governance mechanisms that constitute antecedents of IT governance effectiveness. We used partial least squares (PLS) structural equation modeling to test our hypotheses based on survey data from 87 large Brazilian companies. Our results show IT strategic alignment, IT value delivery, IT risk management, and IT performance management have a positive and significant impact on the effectiveness of IT governance. Further, we found associations of structural, procedural, and relational mechanisms with the main IT governanc...
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Apresenta o relato de projeto desenvolvido em uma cooperativa de costureiras, estruturada em moldes solidarios, com o objetivo de promover, atraves da inclusao digital, o empoderamento de mulheres que trabalham no setor de corte dessa... more
Apresenta o relato de projeto desenvolvido em uma cooperativa de costureiras, estruturada em moldes solidarios, com o objetivo de promover, atraves da inclusao digital, o empoderamento de mulheres que trabalham no setor de corte dessa organizacao. A metodologia utilizada foi a pesquisa-acao, a qual implica uma interacao do pesquisador com seus sujeitos de investigacao para a analise da realidade encontrada e para a construcao de conhecimento. A intervencao ocorreu com a tecnologia social de residencia solidaria, que consiste na identificacao, junto a comunidade, da situacao problema, a partir da qual se elabora um projeto com objetivo de contribuir para sua solucao. Entre as principais constatacoes, verificou-se a dificuldade de o gestor social contar com a abertura da organizacao e a complexidade em envolver todas as cooperadas no projeto. Alem disso, pelas caracteristicas dessa acao, as respostas dos participantes nem sempre seguiram o previsto ou os prazos planejados, cabendo ao gestor realizar as adaptacoes necessarias ao longo do tempo. Por fim, a inclusao digital mostrou-se capaz de gerar o empoderamento necessario para se obter maior participacao das pessoas em seu trabalho e para o desenvolvimento da cooperativa como um todo.Palavras-chaveResidencia solidaria. Empoderamento. Inclusao digital. Mulheres.Women’s empowerement throught digital inclusionAbstractThis article describes a situation of social intervention, based on the use of social technology of Social Justice Residence Program and aims to demonstrate the potential of this tool for training social managers and for the autonomy of workers. The methodology used was a research-action, which means an interaction of researcher and the ones object of research, in order to come to an analysis of the found reality and build up knowledge. This intervention took place through the social technology of joint residence, which consists in identifying, in such a community, situation problem, with the purpose of coming to a solution. The main difficulty was for the social manager to count on an opening of the organization and the complexity to get all the members of the cooperative involved in the project. In addition to the characteristics of this action, the answers of the participants did not always follow the time expected or planned. The manager had to carry out the necessary adaptation along the time. The digital inclusion proved to be able to generate the necessary empowerment for a larger participation of the individuals in their work and for the development of the cooperative as whole.KeywordsJoint Residence. Empowerment. Social Inclusion.
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Resgatar a história recente das pesquisas acadêmicas brasileiras em sistemas de informação (SI) é um desafio oportuno, que possibilita avaliar seu impacto e definir rumos a seguir. Este artigo foca a temática identificada no acervo de... more
Resgatar a história recente das pesquisas acadêmicas brasileiras em sistemas de informação (SI) é um desafio oportuno, que possibilita avaliar seu impacto e definir rumos a seguir. Este artigo foca a temática identificada no acervo de 1.105 artigos publicados nos anais do EnANPAD, na divisão de ADI, e do EnADI no período de 1994 a 2013. Analisam-se os artigos considerando as atuais áreas listadas pela divisão de ADI, tendo sido feito um corte em dois grandes períodos de tempo: 1994 a 2002, considerado de alavancagem da área no Brasil, e 2003 a 2013, considerado como de formação e consolidação de grupos de pesquisa. De forma não acidental, o período estudado coincide com os vinte anos do AMCIS, que gradativamente ganha representatividade internacional, com participação de pesquisadores de todo o mundo. A comunidade mundial de SI foi estimulada pelo AMCIS, em 2014, a se manifestar sobre sua própria história. Busca-se uma tomada de consciência sobre o rumo a seguir, procurando gerar si...
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Recentemente, tem sido foco de interesse entre os executivos o tema governança de TI, de modo a justificar os investimentos realizados em Tecnologia da Informação (TI). Algumas pesquisas têm levantado indícios de que empresas que possuem... more
Recentemente, tem sido foco de interesse entre os executivos o tema governança de TI, de modo a justificar os investimentos realizados em Tecnologia da Informação (TI). Algumas pesquisas têm levantado indícios de que empresas que possuem bons modelos de governança de TI apresentam resultados superiores aos de seus concorrentes. Entretanto, as pesquisas científicas realizadas até agora não permitiram concluir se um desempenho superior da governança de TI se reflete no resultado financeiro. Dessa forma, buscou-se verificar se as empresas que adotaram mecanismos de Governança de TI melhoraram seu desempenho financeiro, comparando indicadores de performance pré e pós-adoção. O estudo permitiu concluir que as empresas que adotaram tais mecanismos melhoraram significativamente seu desempenho quando comparadas ao grupo de empresas que não possuía tais mecanismos, especialmente em relação às medidas de rentabilidade. Identificou-se, ainda, que a diferença entre o desempenho das empresas com...
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Efetividade de Conversão dos Investimentos em TI Efetividade de Conversão dos Investimentos em TI Efetividade de Conversão dos Investimentos em TI Efetividade de Conversão dos Investimentos em TI Efetividade de Conversão dos Investimentos em TI na Eficiência dos Bancos Brasileiros na Eficiência d...more
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More and more industrial and services organizations have invested time, money and their own future in Information Technology (IT). Banks, in particular, have spent billions of dollars in IT, having their products and services basically... more
More and more industrial and services organizations have invested time, money and their own future in Information Technology (IT). Banks, in particular, have spent billions of dollars in IT, having their products and services basically supported by it. Identifying the IT investments and its impact is a very important point for the bank executives. This study evaluates the strategic effects of IT in Brazilian, American, Argentinean, Uruguayan and Chilean banks as perceived by their executives. The sample included 334 executives and the proposed framework evaluated ten different variables. In order to externally validate the questionnaire, results were analyzed considering, as isolated samples, (a) Brazil, (b) the United States, (c) Argentina, Uruguay and Chile, and, then, (d) as one group merging all data. The results highlight that (1) Competition , Products and Services , and Borrowers (Customers) are the main strategic variables affected by IT; in order to detect similar and disti...