Submission deadline: May 12, 2021Call for Papers: http://www.wikicfp.com/cfp/servlet/event.showcfp?eventid=131846©ownerid=168863Submission portal: https://cmt3.research.microsoft.com/RL4ITS2021/Submission/IndexWorkshop website: https://outreach.didichuxing.com/IJCAI2021/workshop/RL4ITS/