Filtering by: Committee Gavalda, Marsal, Square, Inc. Remove constraint Committee: Gavalda, Marsal, Square, Inc. Committee Xiong, Li, Emory University Remove constraint Committee: Xiong, Li, Emory University Degree Ph.D. Remove constraint Degree: Ph.D. Keyword Natural language processing, Information retrieval, Machine learning, question answering Remove constraint Keyword: Natural language processing, Information retrieval, Machine learning, question answering Research Field Computer Science Remove constraint Research Field: Computer Science Submission Type Dissertation Remove constraint Submission Type: Dissertation