A5070925430- Complex Network Analysis Techniques
- Misinformation and Its Impacts
- Semantic Web and Ontologies
- Education and Digital Technologies
- Big Data and Business Intelligence
- Open Source Software Innovations
- Ethics and Social Impacts of AI
- Information Science and Libraries
- Data Visualization and Analytics
- Spam and Phishing Detection
- Social Media and Politics
- Innovation and Knowledge Management
- Business and Management Studies
- Online Learning and Analytics
- Software Engineering Research
- Service-Oriented Architecture and Web Services
- Science and Science Education
- Recommender Systems and Techniques
- Information Systems Theories and Implementation
- Advanced Text Analysis Techniques
- Software Engineering Techniques and Practices
- Competitive and Knowledge Intelligence
- Data Mining Algorithms and Applications
- Mental Health via Writing
- Big Data and Digital Economy
Universidade Federal do Rio de Janeiro
2015-2024
Brazilian Computer Society
2023
Instituto Superior de Engenharia do Porto
2022
Polytechnic Institute of Porto
2022
University of Lisbon
2022
Centro Universitário da Cidade
2016-2020
Centro de Referência em Informação Ambiental
2019
San Antonio College
2019
Meta (Israel)
2019
Twitter (United States)
2014-2017
O CSBC é o maior evento científico dedicado à computação da América Latina, integrando a brasileira e tratando dos rumos área no país. Em um de seus eventos satélites, BraSNAM, encontramos investigações sobre maturidade da(s) rede(s) ou comunidade(s), estruturando combinando dados informações, potenciais fontes conhecimento retroalimentação para ações práticas. Este trabalho apresenta duas análises: (i) análise onze anos (2013 - 2023) publicações mais longevos do CSBC; (ii) todas as edições,...
This study represents an initial endeavor to harness the potential of semantic space within Twitter news flow forecast financial anomalies. In pursuit this objective, approximately two million entities were extracted from text disseminated by most widely followed channels on Twitter. These scrutinized over 12 years explore correlations between their evolution and future stock market The examination focused centrality measures these daily graphs, with particular emphasis identifying...
Ethics is a field of study that analyses practices, their principles, customs, and habits. The Grand Research Challenges in Human-Computer Interaction Brazil (GranDIHC-BR) between 2012 2022 highlighted the relevance topic context Human Values. Aligned with that, we claim computational techniques are not neutral and, therefore, ethical analysis essential to design applications as well theoretical or conceptual research. goal this work provide an understanding on how researchers have addressed...
Neste trabalho apresentamos um conjunto de dados acerca uma década publicações que compõe o Congresso da Sociedade Brasileira Computação (CSBC), entre 2013 e 2022. Especificamos a extração, tratamento, armazenamento abertura dos dados, com suas limitações, desafios aprendizados. Analisamos cenário sobre os metadados, percebendo aspectos positivos negativos do escopo. Finalmente, encaminhamos propostas potenciais aplicações ameaças à validade relacionadas.
O CSBC integra a computação brasileira e trata dos rumos da área no país. Em um de seus eventos-base, WIT, questões gênero se encontram. A análise últimos 7 anos WIT expõe algo raro nos eventos do CSBC: uma quantidade absoluta proporcional autoria mulheres em conformidade com agenda dialética evento. apresenta coesão, reincidência colaboração entre sua comunidade, predominância instituições fora região Sudeste, publicações onde percebemos ênfase educação na solução problemas enfrentados...
O CSBC é o maior evento científico dedicado à computação da América Latina, integrando a brasileira e tratando dos rumos área no país. Em um de seus eventos satélites, BraSNAM, encontramos investigações sobre maturidade da(s) rede(s) ou comunidade(s), estruturando combinando dados informações, potenciais fontes conhecimento retroalimentação para ações práticas. Este trabalho apresenta uma análise última década, 2013 – 2022, publicações mais longevos do por meio uso métodos estatísticos redes...
Context: SBSI ties together the Brazilian Information Systems community since 2004, 20 years ago. Through their research, has matured, grown and established, through authorships, institutions, research interests, collaborations. Problem: complexity, diversity plurality grew as SBSI, IS community, spread; presenting self-monitoring challenges. There are few meta-scientific studies covering collaborations quantitative studies, in different dimensions. Solution: we conducted a comprehensive...
Muito se discute sobre o papel das redes sociais na sociedade atual, pois seus algoritmos acabam reforçando discursos predominantes e limitando a circulação de pautas minoritárias. Este trabalho investigou presença viés gênero através da análise sentimento dos comentários em vídeos do Youtube produzidos por canais notícias contendo nome homens ou mulheres no título vídeos. Para tal, foi escolhido os cenários brasileiros eleições presidenciais 2018 2022, utilizando classificador pySentimiento...
A social network is a structure consisting of individuals or organizations, usually represented by nodes tied one more types interdependency relationship. This work focuses on using data mining techniques to identify intra and inter organization groups people with similar profiles that could have relationships amongst them. For this, we construct multi relational scientific where researchers may four different relations each other. In this paper, analyze the scenario in computing science...
Social networks are sets of links that organize people, groups, and institutions in an equal democratic way, around a common purpose [4]. During the formation such networks, problems can arise, as elements concentrate many relationships, very isolated individuals or peripheral members network, people who only link between two distinct agglomerations points. This cause series communications problems, which ultimately will losses to most important element flows through social networks:...
With the success of MOOCs (Massive Open Online Courses) in recent years and emergence several courses these environments, students face difficulties choosing best materials, modules or courses. Some recommendation systems have come up to address such problem. However, they provide limited a specific MOOC provider. This work proposes an architecture web-based system support finding suitable materials reach their interests. In addition, this will raise fundamental actors roles underlying...
A sociedade é influenciada por novas tecnologias, culminando em questões éticas inéditas. Como habilitar a proteção de dados uma época algoritmos que utilizam os mesmos sabe-se lá para quê? O governo brasileiro, motivado esta questão, sancionou legislação abrangente dados. Na sua redação fica nítida preocupação com transparência. Em vista disso, quais serão as tecnológicas associadas transparência lei dedicada à privacidade?
Knowledge innovation can be detected by scientific and technology production. A challenge on knowledge analysis is the identification of areas in text documents - called topic modeling presenting related concepts an understandable way. The most used reliable approaches are based manual labeling, which impracticable when we analyze a huge period time, large number or different domains. We propose method automatic labeling. Evaluation results pointed that proposed effectively generate labels...
Journal Article i-ProSE: Inferring User Profiles in a Scientific Context Get access Adriana S. Vivacqua, Vivacqua * 1PURO/UFF, Science and Technology Department, Fluminense Federal University, Rua Recife, s/n, Jardim Bela Vista - Rio das Ostras, RJ, BrazilCEP 28890-000 *Corresponding author: avivacqua@addlabs.uff.br Search for other works by this author on: Oxford Academic Google Scholar Jonice Oliveira, Oliveira 2Institute of Mathematics Statistics, UERJ/IME, State de Janeiro são Francisco...
Software Ecosystem (SECO) is often understood as a set of actors interacting among themselves and manipulating artifacts with the support common technology platform. Usually, SECO approaches can be designed an environment whose component repository gathering stakeholders well software products components. By artifacts, technical network emerges from interactions made over in order to reuse improving code quality, downloading, selling, buying etc. Although repositories are essential store...
Many weightless neural networks, such as WiSARD, are RAM-based classifiers that receive binary data input. In order to convert raw into input, several techniques applicable. This work evaluates the impact of some these binarization on accuracy two types classifiers: WiSARD model and with bleaching mechanism. The encoding explored were: (i) thermometer, (ii) threshold, (iii) local (iv) Marr-Hildreth filter, (v) Laplacian filter. MNIST digit dataset was used compare obtained by each technique....
By compiling quantitative information obtained from 1154 publications, the present study aims at offering an overview on how interaction between nanomaterials & plants has been approached.