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Spatial-Time Motifs Discovery

Student: Heraldo Pimenta Borges Filho (
Advisor: Eduardo Ogasawara (
Description: The package STMotif allows performing research of motif in spatial-time series. A motif is a previously unknown subsequence of a (spatial) time series with a relevant number of occurrences. The main purpose is to find a way to handle the issue of large amounts of data. The package offers a way to do this research quickly and efficiently.
Code repository at Git-Hub:
Acknowledgments: The authors thank CAPES, CNPq, and FAPERJ for partially sponsoring this work.

Brazilian flight datasets

The Brazilian flight dataset is available at The file “airports-br.xlsx” contains all Brazilian airports descriptions. The file “vra.RData” contains all flight data from jan/2009 to dec/2017. The file airports_hist.xlsx contains the histogram of airports activities. It can be observed that the major 62 airports that interact with Brazilian flight mesh correspond to 94% of all flights […] Continue reading →

Supporting the Learning of Evolution Theory Using an Educational Simulator

Students: Diego Vaz Caetano, Josué Dias Cardoso and Luana Guimarães Piani Ferreira Collaborators: Raphael Abreu, João Quadros, Joel Santos Advisors: Leonardo Lignani, Eduardo Ogasawara Abstract The use of simulators as educational tools aims to increase students’ engagement in classes and seems to help them to understand difficult concepts. They can be used in natural science […] Continue reading →

TSPred Package for R : Functions for Benchmarking Time Series Prediction

Student: Rebecca Pontes Salles ( Advisor: Eduardo Ogasawara ( Description: Functions for time series prediction and accuracy assessment using automatic linear modeling. The generated linear models and its yielded prediction errors can be used for benchmarking other time series prediction methods and for creating a demand for the refinement of such methods. For this purpose, […] Continue reading →

Orthographic Educational Game for Portuguese Language Countries

Authors: Paula Chaves, Luan Paschoal, Tauan Velasco, Tiago Bento Sampaio, Julliany Brandão, Carlos Otávio Schocair, João Quadros, Talita Oliveira, Eduardo Ogasawara Abstract The new orthographic agreement introduces some changes in the vocabulary of the Portuguese language. Although these changes have modified a small percentage of the vocabulary words, people are struggling to adapt to some […] Continue reading →

RFIDBook: Combining Reward Program System with Social Networks

Students: Anderson Silva, Fábio Rosa Advisor: Eduardo Ogasawara Abstract: Over the past years, online social networks have increasingly become part of everyday life in many countries. Due to that, enterprises are increasing their presence in online social networks. To make them more attractive, they study ways to innovate and combine digital marketing with new technologies. […] Continue reading →

Amê: An Environment to Learn and Analyze Adversarial Search Algorithms Using Stochastic Card Games

Students: Ana Beatriz Cruz, Sabrina Seriques, and Leonardo Preuss Advisor: Eduardo Ogasawara Abstract: Computer Science students are usually enthusiastic about learning Artificial Intelligence (AI) due to the possibility of developing computer games that incorporate AI behaviors. Under this scenario, Search Algorithms (SA) are a fundamental subject of AI for a broad variety of games. Implementing […] Continue reading →

ControlHarvest: Game-Based Learning for Biological Control

Students: Gabriel Alves da Silva, Patrick Warley Telles da Silva Advisors: Leonardo Lignani, Eduardo Ogasawara Abstract: Biological control is a strategy used to control pests (insects, diseases) for certain environments, such as farmland. It is based on methods for controlling pests using other living beings. However, studies must be conducted before this practice in order […] Continue reading →