I have been an assistant professor in the Department of Computer Science and Engineering at the Ohio State University (OSU) since Fall 2016. Prior to that, I spent half a year as a visiting scientist at the University of Washington, and received a Ph.D. in Computer Science from University of California, Santa Barbara (2015) and a B.S. in EEIS from the University of Science and Technology of China (2010).

I am looking for highly self-motivated students. Please do not hesitate to contact me if you are interested.

Research Interests

My research interests lie in data mining, and machine learning with emphasis on text mining and understanding, network analysis, and human behavior understanding. Particularly, my research projects focus on: (1) Machine intelligent question answering (QA) based on various sources, such as knowledge bases, texts, and tables; (2) Human collaborative QA: expert behavior understanding and expertise mining; (3) Knowledge discovery from texts and networks.



  • 09/2017: We are very excited and grateful for receiving an ARO grant (sole-PI, 2017-2020) for our research.
  • 06/2017: Our paper on answer triggering got accepted in EMNLP 2017. Code is now available here. Please let my student Jie Zhao or me know if you have any suggestions!
  • 03/2017: We received a gift grant from Fujitsu Laboratories of America. Thanks, Fujitsu!
  • 01/2017: Got tired of simple question answering? Try out our characteristic-rich question set! Any suggestions are welcome. ;)
  • 01/2017: I am on the program committee of SIGKDD 2017, ACL 2017, EMNLP 2017, CIKM 2017 (senior PC), IJCAI-BOOM 2017 (Please consider submitting to BOOM)
  • 12/2016: Our paper "Reliable Medical Diagnosis from Crowdsourcing: Discover Trustworthy Answers from Non-Experts" was accepted in WSDM 2017
  • 09/2016: Our paper "An Augmented LSTM Framework to Construct Medical Self-diagnosis Android" was accepted in ICDM 2016
  • 07/2016: Our paper "On Generating Characteristic-rich Question Sets for QA Evaluation" was accepted in EMNLP 2016
  • 07/2016: Received SIGKDD 2016 Ph.D. Dissertation Runner Up Award


Many thanks to ARO and Fujitsu Laboratories of America for their generous support of our research.