Institute of Industrial Science, the University of Tokyo
Analysis of risk behavior-related Tweets
・Tweets related to actions of high infection risk were extracted and compared with positive COVID-19 cases. Tweets including the following keywords were subject to analysis:
-Drinking session, End-of-year Party, Christmas Party, New Year Party (Respectively 飲み会、忘年会、クリスマスパーティ、新年会 in Japanese)
-Karaoke (カラオケ in Japanese)
-Fitness center (ジム in Japanese)
-Hanami (“Flower-viewing”, 花見 in Japanese)
-Barbecue (バーベキュー in Japanese)
・The situations within Tokyo and Osaka regions were compared with each other, using location information from Twitter user profiles.
・The self-restraint attitude towards excursions seems to be continuing, similar to the situation shown in the last report.
・Tweets related to outdoor activities are decreasing overall, although there are minor differences among regions.