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https://hdl.handle.net/1822/43067
Título: | Measuring user influence in financial microblogs: experiments using stocktwits data |
Autor(es): | Cortez, Paulo Oliveira, Nuno Miguel Rocha Ferreira, João Carlos Peixoto |
Palavras-chave: | Sentiment analysis Microblogging data Social networks User influence Stock markets |
Data: | 2016 |
Editora: | ACM |
Citação: | In Proceedings of the 6th International Conference on Web Intelligence, Mining and Semantics (WIMS'16), article no. 17, Nimes, France, June, 2016, ACM, ISBN 978-1-4503-4056-4/16/06 (10 pages). |
Resumo(s): | In this paper, we study the effect of graph structure user in- fluence measures in financial social media. In particular, we explore rich and recent data, composed of 1.2 million Stock- Twits messages, from June 2010 to March 2013. These data allow the creation of social network graphs by considering direct active interactions (retweets, shares or replies). Using such graphs and a realistic rolling windows evaluation, we analyzed four user influence measures (indegree, between- ness, page rank and posts) under two criteria: Percentage of Quality Users (PQU), as manually labeled by StockTwits; and the daily sentiment correlation between top lists of in- fluential users and other users. The sentiment was based on a StockTwits labeled dataset and assessed in terms of three selections: overall sentiment (ALL) and filtered by two ma- jor technological companies (Apple – AAPL and Google – GOOG). Promising results were obtained, with several top lists pre- senting PQU values higher than 80% and correlations higher than 0.6. Overall, the best results were achieved by the page rank and posts measures. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/43067 |
ISBN: | 978-1-4503-4056-4 |
DOI: | 10.1145/2912845.2912860 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
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Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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paper-38.pdf | 609,54 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons