[Ai] AI Seminar hiatus for a month -- next seminar will be 4/21

Dear all,     Thanks for participating in the AI seminar during the winter term, we have had a wonderful lineup with many extremely interesting talks. We will not be having the AI seminar in the next few weeks. The next scheduled speakers are at 4/21: Jiajun Wu from Stanford University and 4/28: Drew Bagnell from CMU. I'm still working on confirming the May seminars as well. Look forward to seeing your participation in the AI seminar next term! Best Regards, Fuxin