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About

About

I graduated in Mathematics Applied to Computer Science, from Faculty of Sciences (UP) in 1995, and took my MSc in Foundations of Advanced Information Technology, from Imperial College, London, in 1997. In 2004 I concluded my PhD in Computer Science in concurrent and distributed programming.

I am currently an Assistant Professor, with tenure, at Faculty of Sciences in University of Porto. My research interests are in the areas of text and web mining, community detection, e-learning and web-based learning and standards in education.

I'm also a researcher in the CRACS Research Unit where I have been leading international projects involving University of University of Porto, Texas at Austin, University of Coimbra and University of Aveiro, regarding the automatic detection of relevance in social networks.

Interest
Topics
Details

Details

002
Publications

2019

A Brief Overview on the Strategies to Fight Back the Spread of False Information

Authors
Figueira, A; Guirnaraes, N; Torgo, L;

Publication
JOURNAL OF WEB ENGINEERING

Abstract
The proliferation of false information on social networks is one of the hardest challenges in today's society, with implications capable of changing users perception on what is a fact or rumor. Due to its complexity, there has been an overwhelming number of contributions from the research community like the analysis of specific events where rumors are spread, analysis of the propagation of false content on the network, or machine learning algorithms to distinguish what is a fact and what is "fake news". In this paper, we identify and summarize some of the most prevalent works on the different categories studied. Finally, we also discuss the methods applied to deceive users and what are the next main challenges of this area.

2019

Preventing Failures by Predicting Students’ Grades through an Analysis of Logged Data of Online Interactions

Authors
Cabral, B; Figueira, A;

Publication
Proceedings of the 11th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management

Abstract

2019

On the Development of a Model to Prevent Failures, Built from Interactions with Moodle

Authors
Cabral, B; Figueira, Á;

Publication
Lecture Notes in Computer Science - Advances in Web-Based Learning – ICWL 2019

Abstract

2018

Human vs. Automatic Annotation Regarding the Task of Relevance Detection in Social Networks

Authors
Guimaraes, N; Miranda, F; Figueira, A;

Publication
Advances in Internet, Data & Web Technologies - Lecture Notes on Data Engineering and Communications Technologies

Abstract

2018

Twitter as a Source for Time- and Domain-Dependent Sentiment Lexicons

Authors
Guimaraes, N; Torgo, L; Figueira, A;

Publication
Lecture Notes in Social Networks - Social Network Based Big Data Analysis and Applications

Abstract

Supervised
thesis

2018

Melhoria de Processos de Software em Pequenas Empresas com base no Modelo ITmark

Author
Duarte Gil Araújo Gomes

Institution
UP-FEUP

2017

Using named entity recognition for relevance detection in social network messages

Author
Filipe Daniel da Gama Batista

Institution
UP-FCUP

2017

Computing the accuracy of an automatic system for relevance detection in social networks

Author
Filipe Fernandes Miranda

Institution
UP-FCUP

2017

Análise de atividade de instituições de ensino superior em redes sociais

Author
Ana Catarina Marinho Ribeiro

Institution
UP-FCUP

2017

Sistema para visualização e análise de interações pedagógicas online

Author
André Cruzeiro Rei

Institution
UP-FCUP