Filtering by: Committee Xiong, Li, Emory University Remove constraint Committee: Xiong, Li, Emory University Graduation year sim 2017 Remove constraint Graduation year sim: 2017 Keyword artificial intelligence Remove constraint Keyword: artificial intelligence Keyword information retrieval Remove constraint Keyword: information retrieval School Laney Graduate School Remove constraint School: Laney Graduate School Submission Type Dissertation Remove constraint Submission Type: Dissertation