Editorial Board

  1. Journal of Biomedical Informatics.  Spring 2014-Present.
  2. Advances in Artificial Intelligence.  Fall 2011-Spring 2014.

Guest Editor

  1. Journal of Biomedical Informatics, Special issue on i2b2 2014 Challenges. Spring 2014-Present. Co-guest editor: Amber Stubbs.
  2. Journal of Biomedical Informatics, Special issue on i2b2 Temporal Relations Challenges. Spring 2013-Spring 2014. Co-guest editor: Amber Stubbs.

Shared-Task and Workshop Organization (selected)

  1. Co-Chair and Organizer. 7th i2b2/UTHealth Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data. De-identification and Identifying Risk Factors for Heart Disease over Time. In conjunction with the Fall Symposium of the American Medical Informatics Association, Washington, DC, November 14, 2014.
  2. Co-Chair and Organizer. 6th i2b2 Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data. Temporal Relations. In conjunction with the Fall Symposium of the American Medical Informatics Association, Chicago, IL, November 1, 2012.
  3. Co-Chair and Organizer. 5th i2b2/VA Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data. Co-reference resolution. In conjunction with the Fall Symposium of the American Medical Informatics Association, Washington, DC, October 21-22, 2011.
  4. Session Chair.  Fall Symposium of the American Medical Informatics Association, Washington, DC, October 21-22, 2011.
  5. Organizing Committee. ICML 2011 Workshop on Learning from Unstructured Text, Bellevue, WA, June 28-July 2, 2011.
  6. Co-Chair and Organizer. 4th i2b2/VA Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data.  Concepts, Assertions, and Relations.  In conjunction with the Fall Symposium of the American Medical Informatics Association, Washington, DC, November 12-13, 2010.
  7. Chair and Organizer. 3rd i2b2 Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data. Medication Extraction Challenge.  In conjunction with the Fall Symposium of the American Medical Informatics Association, San Francisco, CA, November 13-14, 2009.
  8. Chair and Organizer. 2nd i2b2 Shared-Task and Workshop on Challenges in Natural Language Processing for Clinical Data. Obesity Challenge (A Shared-Task on Obesity): Who's obese and what co-morbidities do they (definitely/likely) have? In conjunction with the Fall Symposium of the American Medical Informatics Association, Washington, DC, November 7-8, 2008.
  9. Chair and Organizer. i2b2 Workshop on Natural Language Processing Challenges for Clinical Records. In conjunction with the Fall Symposium of the American Medical Informatics Association, Washington, DC, November 10-11, 2006.
  10. Co-chair. SIGIR 2006 Workshop on Directions in Computational Analysis of Stylistics in Text Retrieval, Seattle, WA, August 6-11, 2006.