“…big data, consumer confidence index, microblog, social media, user dictionary 1 | INTRODUCTION Psychological research has found that when individuals make cognitive evaluation, their emotions would be affected; at the same time, the emotion of individuals would in return influence the cognitive evaluation process. The sentiment analysis based on microblog texts mining is of great value to study users' satisfaction with commodities, attitudes towards social events, and individual psychological behavior characteristics (Bai et al, 2013;El Alaoui et al, 2018;He, 2013;Kadam et al, 2018;Li & Wu, 2010;Shayaa et al, 2018;Tausczik & Pennebaker, 2010). Based on the theory that emotions influence financial decisions, plenty of studies have combined social emotions with stock market trends (Koy & Akkaya, 2017).…”