Member of Advisory Council, Department of Chemistry, Princeton University (Spring 1981) Council to evaluate Chemistry Department programs at Princeton.
Member of IEICE Special Interest Group on Wavelets (1994-1996), consisting of Japanese university faculty and researchers, for technical discussions, seminar talks, and organizing sessions at meetings and special journal issues.
Committee Member, Information Processing Society of Japan (IPSJ), Special Interest Group (SIG) on Mathematical Modeling and its Applications, Apr. 1, 1999-Mar. 31, 2001.
Committee Member, External Review of the activities of the Kyoto University Research Institute for Mathematical Sciences (RIMS), Aug. 2002.
Reviewer, NSF grant proposals on research (2003).
Japan SIAM Review Committee Member, to review activities of J-SIAM 2004.
Member, NSF Panel to review grant proposals to support Focused Research Groups (FRG) in applied mathematical sciences for 2005-2008.
IBM Internal Committee work including Codec Task Force (1992), Library Committee (1993), Inventory & Asset Coordinator (1993-95), Demo Coordinator for open house (1996), Assistant for Foreign Visiting Scientists and Intern Program (1997), Seminar Series Coordinator (1997 & 2007), Web Master for Library (1997), Web Master for Solution Research Center (1998-2000), Member, of IBM Research Intranet/Internet Advisory Council (2004-2006), Co-organizer, Brown Bag Lunch Seminar (2005 - 2012), IBM Research Personal Interest Community (PIC) Co-Chair for Knowledge Discovery & Data Mining Activities (2007-2009).
Member, NSF Panel to review grant proposals for 2012-2014.
Member, NSF Panel to review grant proposals for 2013-2015.