Analysis of risk behavior-related Tweets
・Tweets related to actions of high infection risk were extracted from all tweets written in Japanese on Twitter.
-Approximately 30 sentence patterns indicating an imminent action (up to the next day), current action, or recent action (up to the previous day) were used in the analysis.
-Risk-related activities subject to the analysis are as follows:
・Drinking session (飲み会 in Japanese)
・Karaoke (カラオケ in Japanese)
・Fitness center (ジム in Japanese)
・End-of-year Party, Christmas Party, New Year Party, Hatsumoude (“First shrine visit of the year”, Family reunion (Respectively 忘年会、クリスマスパーティ、新年会、初詣、帰省 in Japanese)
・Hanami (“Flower-viewing”), Barbecue (Respectively 花見、バーベキュー in Japanese)
Based on Twitter data provided by NTT DATA.
※ Blue sections indicate time periods of a state of emergency.
Based on Twitter data provided by NTT DATA.
※ Blue sections indicate time periods of a state of emergency.
Based on Twitter data provided by NTT DATA.
※ Blue sections indicate time periods of a state of emergency.
Based on Twitter data provided by NTT DATA.
※ Blue sections indicate time periods of a state of emergency.
Based on Twitter data provided by NTT DATA.
※ Blue sections indicate time periods of a state of emergency.
Comparison with the year 2021:
Tweets related to Karaoke
・Comparison with last year by weekdays is shown below.
e.g. January 17th, 2021 (Sun) and January 16th, 2022(Sun) are synced in the graph.
・The numbers began increasing since the 3-day weekend between February 11th and 13th.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to drinking session
・Comparison with last year by weekdays is shown below.
・The numbers began increasing since the weekend of the week of February 14th.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to New Year Party
・Comparison with last year by weekdays is shown below.
・The numbers are following those of last year during January.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to Coming-of-age ceremony
・Tweets related to coming-of-age ceremony increased to 1.4 – 1.6 times that of last year.
The date of the ceremony in 2022 is adjusted for comparison.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to family reunion
・Tweets related to family reunion on December 29th and 30th increased to 4.8 times that of last year.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to Hatsumoude
・Tweets related to Hatsumoude on New Year’s Day increased to 2 times that of last year.
・During the 3-day weekend from January 8th (Sat) to 10th (Mon), the numbers increased slightly.
Based on Twitter data provided by NTT DATA.
Comparison with the year 2021:
Tweets related to End-of-year Party
・Tweets increased rapidly from December 26th (Sun) to 29th (Wed), to a level of 3 times that of last year on the 29th.
・The number of tweets saw a standstill from 27th to 30th last year; the tweets continued to increase this year.
・The rate of increase slowed on December 18th (Sat), but this seems to be a temporary change.
Based on Twitter data provided by NTT DATA.
