His research interests include semantic search, data summarization, and question answering. He has published in WWW, WSDM, IJCAI, ISWC, TKDE, JoWS, etc. Two of his papers were nominated for best research papers at ISWC'14 and ISWC'11 (top venue for Semantic Web research). He served as a PC member in WWW and ISWC, and co-organized international and national conferences, such as JIST, SumPre, and CCKS.