Shaodian Zhang            

Columbia Ph.D. Student
Department of Biomedical Informatics
Columbia University
Address: 622 West 168 Street, PH-20
New York, NY 10032
Email: sz2338 AT


I have moved. This page is no longer updated. Please refer to my new homepage at:

I was a Ph.D. student in the Department of Biomedical Informatics of Columbia University. My advisor was Prof. Noemie Elhadad.

I received my B.E. degree in computer science from Shanghai Jiao Tong University. I was a member of the ACM Honored Class. In my undergraduate years I have been fortunate to work with Prof. Hai Zhao on natural language processing.


  • Shaodian Zhang, and Noemie Elhadad, Factors Contributing to Dropping-out in an Online Health Community: Static and Longitudinal Analyses, AMIA 2016. Best student paper finalist. to appear
  • Shaodian Zhang, Erin O'Carroll Bantum, Jason Owen, Suzanne Bakken, and Noemie Elhadad Online cancer communities as informatics intervention for social support: Conceptualization, Characterization, and Impact, to appear, Journal of American Medical Informatics Association (JAMIA). [html]
  • Shaodian Zhang, Tian Kang, Xingting Zhang, Dong Wen, Noemie Elhadad, and Jianbo Lei, Speculation Detection for Chinese Clinical Notes: Impacts of Word Segmentation and Embedding Models, Journal of Biomedical Informatics (JBI).[html]
  • Shaodian Zhang, Edouard Grave, Elizabeth Sklar, and Noemie Elhadad, Longitudinal Analysis of Discussion Topics in an Online Breast Cancer Community using Convolutional Neural Networks, ArXiv preprint.[html]
  • Shaodian Zhang, Erin Bantum, Jason Owen, and Noemie Elhadad, Does Sustained Participation in an Online Health Community Affect Sentiment?, AMIA 2014. Best student paper finalist. [pdf]
  • Noemie Elhadad, Shaodian Zhang, Patricia Driscoll, and Samuel Brody, Characterizing the Sublanguage of Online Breast Cancer Forums for Medications, Symptoms, and Emotions., AMIA 2014.[pdf]
  • Shaodian Zhang and Noemie Elhadad, Unsupervised Biomedical Named Entity Recognition: Experiments with Clinical and Biological Texts, Journal of Biomedical Informatics (JBI).[html]
  • Xiaohua Liu, Shaodian Zhang, Furu Wei, and Ming Zhou, Recognizing Named Entities in Tweets, in Proceedings of ACL 2011. [pdf]
  • Shaodian Zhang, Hai Zhao, Guodong Zhou, and Bao-liang Lu, Hedge Detection and Scope Finding by Sequence Labeling with Normalized Feature Selection, in Proceedings of CoNLL 2010. [pdf]


  • CubNER: an unsupervised biomedical named entity recognizer.


  • May 2012 - Aug 2012  Intern, Natural Language Processing Group, Microsoft Research, Redmond
  • Oct 2010 - Jan 2011  Intern, Natural Language Computing Group, Microsoft Research Asia, Beijing


I play soccer and table tennis.

I travel and photograph.

I read political philosophy and history.

I enjoy classical music.