Recently, the popularity of big data as a research field has shown continuous and wide-
scale growth. This study aims to capture the scientific structure and topic evolution of big …

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Information from microblogs is gaining increasing attention from researchers interested in
analyzing fluctuations in stock markets. Behavioral financial theory draws on social …

The stock market is influenced by several factors, such as macroeconomics, regulatory,
purely speculative ones, and many others. However, one of the most relevant and …

Nowadays, the social media play a central role not only in “de-asymmetrizing” the
information between firms and investors but also in influencing the emotional response to …

ABSTRACT In previous works ([8],[12]), it has already been showed that Twitter and social
media in general give an interesting additional predictive power to the models that take them …

In this paper, we examine the Global Game Jam Theme and the reaction of the'jammers' to
the release. The Theme is one of the main drivers for creative aspect of the Game Jam, it …

Using machine learning and alternative data for the prediction of financial markets has been
a popular topic in recent years. Many financial variables such as stock price, historical …

Social media data have been proved to be effective in augmenting stock price forecasting
models before ([8],[12]), but given the intrinsic speculative nature of traders who may use …

Big data is a buzzword that indicates data that do not fit traditional database structure. Their
potential is enormous for many fields, and risk management is within the ones that could …