Seminars and Talks 10:30 - 12:00, April 24, 2017 (Monday) 070116, Zhi Xi Building, NCCU On the Generalized Eggenberger-P\'olya Urn Models 15:30 - 16:30, April 24, 2017 (Monday) R201, Astronomy-Mathematics Building, NTU Some Optimization Problems Arising in Population Biology