Filipe Nunes Ribeiro

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In the last few years thousands of scientific papers have investigated sentiment analysis, several startups that measure opinions on real data have emerged and a number of innovative products related to this theme have been developed. There are multiple methods for measuring sentiments, including lexical-based and supervised machine learning methods.(More)
In the last few years thousands of scientific papers have investigated sentiment analysis, several startups that measure opinions on real data have emerged and a number of innovative products related to this theme have been developed. There are multiple methods for measuring sentiments, including lexical-based approaches and supervised machine learning(More)
Sentiment analysis became a hot topic, specially with the amount of opinions available in social media data. With the increasing interest in this theme, several methods have been proposed in the literature. Recent efforts have showed that there is no single method that always achieves the best prediction performance for different datasets. Additionally,(More)
Sentiment Analysis became an important topic in the Web recently, especially regarding to Online Social Networks. Many applications are monitoring products and brands, and even important social events like political campaigns. A large number of Sentiment Analysis methods and techniques were proposed in the literature. This short course offers an(More)
Location Based Services like finding nearest restaurants or finding friends have increasingly became more common, especially to mobile users. Nevertheless, misuse of location information could represent some threats to users’ privacy. Great effort has been placed to propose new techniques which try to deal with these threats, but in most of these cases,(More)
Currently, many developing countries based their transportation infrastructure on roads. These roads qualities have a significant influence on how fast products are delivered and how much it costs. Due to the lack of low-cost solutions or negligence, roadways pavement quality inspections are usually set aside or hardly performed at some places. This fact(More)
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