Filtering by: Committee Xiong, Li, Emory University Remove constraint Committee: Xiong, Li, Emory University Committee Jiang, Xiaoqian, University of California, San Diego Remove constraint Committee: Jiang, Xiaoqian, University of California, San Diego Keyword Crowdsourcing Remove constraint Keyword: Crowdsourcing Keyword Recommender systems Remove constraint Keyword: Recommender systems Research Field Information Technology Remove constraint Research Field: Information Technology