Search Results for author: Pedro O. S. Vaz de Melo

Found 8 papers, 1 papers with code

Prediction-Free, Real-Time Flexible Control of Tidal Lagoons through Proximal Policy Optimisation: A Case Study for the Swansea Lagoon

no code implementations18 Jun 2021 Túlio Marcondes Moreira, Jackson Geraldo de Faria Jr, Pedro O. S. Vaz de Melo, Luiz Chaimowicz, Gilberto Medeiros-Ribeiro

Tidal Range Structures (TRS) have been considered for large-scale electricity generation for their potential ability to produce reasonably predictable energy without the emission of greenhouse gases.

Unity

Overcoming Bias in Community Detection Evaluation

no code implementations6 Feb 2021 Jeancarlo Campos Leão, Alberto H. F. Laender, Pedro O. S. Vaz de Melo

In our approach, we measure the quality of a community by applying the structural and functional strategies, and the combination of both, to obtain different pieces of evidence.

Community Detection

Fast Estimation of Causal Interactions using Wold Processes

1 code implementation NeurIPS 2018 Flavio Figueiredo, Guilherme Borges, Pedro O. S. Vaz de Melo, Renato M. Assunção

Regarding accuracy, GrangerBusca is three times more accurate (in Precision@10) than the state of the art for the commonly explored subsets Memetracker.

Point Processes

When Politicians Talk About Politics: Identifying Political Tweets of Brazilian Congressmen

no code implementations4 May 2018 Lucas S. Oliveira, Pedro O. S. Vaz de Melo, Marcelo S. Amaral, José Antônio. G. Pinho

Since June 2013, when Brazil faced the largest and most significant mass protests in a generation, a political crisis is in course.

Burstiness Scale: a highly parsimonious model for characterizing random series of events

no code implementations20 Feb 2016 Rodrigo A. S. Alves, Renato Assunção, Pedro O. S. Vaz de Melo

From one side, the Poissonian processes, of which consecutive events follow each other at a relatively regular time and should not be correlated.

Breaking the News: First Impressions Matter on Online News

no code implementations26 Mar 2015 Julio Reis, Fabricio Benevenuto, Pedro O. S. Vaz de Melo, Raquel Prates, Haewoon Kwak, Jisun An

In order to discover strategies that could be used to attract clicks, we extracted features from the text of the news headlines related to the sentiment polarity of the headline.

Universal and Distinct Properties of Communication Dynamics: How to Generate Realistic Inter-event Times

no code implementations19 Mar 2014 Pedro O. S. Vaz de Melo, Christos Faloutsos, Renato Assunção, Rodrigo Alves, Antonio A. F. Loureiro

We show the potential application of SFP by proposing a framework to generate a synthetic dataset containing realistic communication events of any one of the analyzed means of communications (e. g. phone calls, e-mails, comments on blogs) and an algorithm to detect anomalies.

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