Company event popularity for financial markets using Twitter and sentiment analysis. (1st April 2017)

• Record Type: Journal Article
• Authors: Daniel, Mariana; Neves, Rui Ferreira; Horta, Nuno
• Is Part Of: Expert systems with applications. Volume 71(2017)
• Page Start: 111
• Page End: 124
• Publication Date: 2017-04-01
• Subjects: Event popularity -- Sentiment analysis -- Twitter -- Financial community; Expert systems (Computer science) -- Periodicals; Systèmes experts (Informatique) -- Périodiques; Electronic journals; 006.33
• DOI: 10.1016/j.eswa.2016.11.022
• Languages: English
• ISSNs: 0957-4174

Abstract

Highlights: The work proposes an Event Popularity Algorithm for Financial Trading. The approach is based on sentiment analysis to the social network Twitter. Planning and performing a financial community for the extraction of analyzed tweets. The events are focused on the thirty companies that compose the Dow Jones index. Abstract: The growing number of Twitter users makes it a valuable source of information to study what is happening right now. Users often use Twitter to report real-life events. Here we are only interested in following the financial community. This paper focuses on detecting events popularity through sentiment analysis of tweets published by the financial community on the Twitter universe. The detection of events popularity on Twitter makes this a non-trivial task due to noisy content that often are the tweets. This work aims to filter out all the noisy tweets in order to analyze only the tweets that influence the financial market, more specifically the thirty companies that compose the Dow Jones Average. To perform these tasks, in this paper it is proposed a methodology that starts from the financial community of Twitter and then filters the collected tweets, makes the sentiment analysis of the tweets and finally detects the important events in the life of companies.