Director or Co-Director, Intelligent Systems Program, University of Pittsburgh, 2002-present
Action Editor, Transactions of the ACL.
Program Co-Chair, ACL-IJCNLP-09.
ACL SIGDial Scientific Advisory Board (February 2009-present).
Faculty Representative, Student Research Workshop, ACL 2008
Member University Undergraduate Council, University of Pittsburgh 2007-2010
Co-Editor: "Computing Attitude and Affect in Text" James G. Shanahan, Yan Qu, Janyce Wiebe (Eds.) Springer, Dordrecht, The Netherlands, 2005
Member of Executive Board, 2004-06 and 2000-01 North American Chapter of the Association for Computational Linguistics (NAACL) .
Member of Editorial Board, 2009-present IEEE Journal on Affective Computing
Member of Editorial Board, 2004-06, 2009-present Language Resources and Evaluation
Member of Editorial Board, 2001-03, Computational Linguistics .
Program Chair, 1st Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2000)
Workshop Program Co-Chair, AAAI-2002 .
Local Arrangements Chair, 32nd Annual Meeting of the Association for Computational Linguistics (ACL-94) .