Ms Yongxue Shi successfully completed her PhD Defense on January 21, 2019. She made a final presentation also for GSS program on January 23, 2019. Her PhD is entitled “ANALYZING AND CATEGORIZING FLOOD DISASTER-RELATED TWEETS FOR EMERGENCY RESPONSE (危機対応を目的とした洪水災害関連ツイートの分析と分類 )”. Congratulations, Seki-san!