Students' perceptions of Blackboard and Moodle in a Portuguese university. - Ana Carvalho; Nelson Areal; Joaquim Silva 002 (Br. J. Educ. Technol., 2011)

On the Predictability of Stock Market Behavior Using StockTwits Sentiment and Posting Volume. - Nuno Oliveira 002; Paulo Cortez 001; Nelson Areal (EPIA, 2013)

Some experiments on modeling stock market behavior using investor sentiment analysis and posting volume from Twitter. - Nuno Oliveira 002; Paulo Cortez 001; Nelson Areal (WIMS, 2013)

Automatic creation of stock market lexicons for sentiment analysis using StockTwits data. - Nuno Oliveira 002; Paulo Cortez 001; Nelson Areal (IDEAS, 2014)

Stock market sentiment lexicon acquisition using microblogging data and statistical measures. - Nuno Oliveira 002; Paulo Cortez 001; Nelson Areal (Decis. Support Syst., 2016)

The impact of microblogging data for stock market prediction: Using Twitter to predict returns, volatility, trading volume and survey sentiment indices. - Nuno Oliveira 002; Paulo Cortez 001; Nelson Areal (Expert Syst. Appl., 2017)