Professional Service
2011
Secretary, SIGSPATIAL Executive Committee, ACM Special Interest Gropu SIGSPATIAL.
Chair, NSF PI Meeting: The Science of Cloud Computing, Arlington, VA.\
General Co-Chair, ACM SIGSPATIAL International Conference on Advances on Geographical Information Systems, Chicago, IL.
Group-leader, Program Committee, The 14th International Conference on Extending Database Technology, Uppsala, Sweden.
Program Co-Chair, The 5th Workshop on Large Scale Distributed Information Systems and Middleware, Seattle, WA.
Member, Program Committee, The 12th International Symposium on Spatial and Temporal Databases (SSTD'2011), Minneapolis, MN.
Member, Program Committee, 12th IEEE International Conference on Mobile Data Management (MDM'2011), LuleƄ, Sweden.
Member, Program Committee, International Conference on Very Large Databases (VLDB'2011), Seattle, WA.
Member, Program Committee, The 10th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE'2011), Crete, Greece.
2010
Program Chair, ACM International Conference on Management of Data (SIGMOD'10), Indianapolis, IN.
Member, Program Committee, IEEE International Conference on Data Engineering (ICDE'2010), Long Beach, CA.
General Chair, Workshop on Information and Software as a Service (WISS'2010), Long Beach, CA.
General Chair, ACM SIGSPATIAL International Conference on Advances on Geographical Information Systems (GIS'2010), San Jose, CA.
Member, Program Committee, The 16th International Conference on Management of Data (COMAD'2010), Nagpur, India.
2009
- Member, Program Committee, 10th International Conference on Web Information System Engineering (WISE'09), Poznan, Poland.
- General Co-Chair, a href="">ACM SIGSPATIAL International Conference on Advances on Geographical Information Systems (GIS'2009), Seattle, WA.
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2008), Honolulu, Hawaii.
- Member, Program Committee, ACM International Conference on Mobile Data Management (MDM'09).
- Vice Chair, Data Warehousing Track, IEEE Interantional Conference on Data Engineering (ICDE'09), Shanghai, China.
2008
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2008), Ceara, Brazil.
- Member, Program Committee, ACM Symposium on Principles of Database Systems (PODS'08), Vancouver, Canada.
- Member, Program Committee, International Conferencce on Management of Data (SIGMOD'08), Vancouver, Canada.
2007
- Member, Program Committee, The Second International Conference on Scalable Information Systems (InfoScale'07), Suzhou, China.
- Member, Program Committee, International Workshop on Databases in Networked Information Systems (DNIS'07), Aizu, Japan.
- Member, Program Committee, IEEE International Symposium on Applications and the Internet (SAINT'07), Hiroshima, Japan.
- Member, Program Committee, IEEE International Conference on Data Engineering (ICDE'07), Istanbul, Turkey.
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2007), Seoul, Korea.
- Member, Program Committee, The 3rd International Workshop on Network meets Databases (NetDB'07), Cambridge, MA.
2006
- Member, Program Committee, International Conference on Very Large Data Bases (VLDB'06), Seoul, Korea.
- Member, Program Committee, International Conference on Mobile Data Management (MDM'06), Nara, Japan
- Member, Program Committee, IEEE International Symposium on Applications and the Internet (SAINT'06), Phoenix, AZ.
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2006), Dijon, France.
2005
- Member, Program Committee, International Conference on management of Data (COMAD'05), Goa, India.
- Member, Program Committee, International Conference on Mobile Data Management (MDM'05), Cyprus.
- Member, Program Committee, IEEE International Symposium on Applications and the Internet (SAINT'05), Trento, Italy.
- Member, Program Committee, IEEE International Conference on Web Services (ICWS'05), Orlando, FL.
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2005), Santa Fe, New Mexico.
- Member, Program Committee, 4th International Workshop on Databases in Networked Information Systems (DNIS'05), Aizu, Japan.
- Member, Program Committee, 13th ACM International Symposium on Advances in GIS (ACMGIS'05), Bremen, Germany.
- Member, Program Committee, 10th International Conference on Databases for Advanced Applications (DASFAA'05), Beijing, China.
- Member, Program Committee, International IEEE Workshop on Network Meets Databases (NetDB'05), Tokyo, Japan.
- Member, Program Committee, International Conference on Very Large Data Bases: Demonstration Track (VLDB'05), Trondheim, Norway.
- Member, Program Committee, 4th International ACM Workshop on Data Engineering for Wireless and Mobile Access (MobiDE `05), Baltimore, MD.
2004
- Member, Program Committee, 20th IEEE International Conference on Data Engineering (ICDE'2004), Boston, MA, USA.
- Member, Program Committee, International Workshop on Spatio temporal Database Management (STDBM'04), Toronto, Canada.
- Member, Program Committee, ACM Symposium on Principles of Database Systems (PODS'2004), Paris, France.
- Member, Program Committee, ACM Symposium on Applied Computing (SAC'2004), Santa Fe, NM.
- Member, Program Committee, 24th IEEE International Conference on Distributed Computing Systems (ICDCS'2004), Vienna, Austria.
2003
2002
- Vice Chair, Distributed Databases Program Committee, 22nd IEEE International Conference on Distributed Computing Systems (ICDCS'2002), Vienna, Austria.
- Member, Program Committee, 2002 International Database Engineering and Applications Symposium (IDEAS'2002).
- Member, Program Committee, 18th IEEE International Conference on Data Engineering (ICDE'2002), San Jose, CA, USA.
2001
- Member, Program Committee, 7th International Symposium on Spatial and Temporal Databases (SSTD'2001), Redondo Beach, CA, USA.
- Member, Program Committee, International Conference on Very Large Data Bases (VLDB'2001)
- Member, Program Committee, International Conference on Mobile Data Management (MDM'2001)
- Associate Program Chair, ACM International Conference on Management of Data (SIGMOD'2001) ,
2000
- Tutorial Co Chair for the 26th International Conference on Very Large Data Bases (VLDB 2000) , ,
- Member, Program Committee, International Workshop on Data and Networked Information Systems (DNIS'2000)
- Member, Program Committee, IEEE International Conference on Data Engineering (ICDE'2000)
- Member, Program Committee, ACM International Conference on Management of Data (SIGMOD'2000)
- Member, Program Committee, 2nd International Conference on Data Warehouses and Knowledge Discovery (DAWAK'2000)
- Member, Program Committee, 1st International Conference on Multimedia and Expo (ICME'2000)
- Member, Program Committee, 10th International Conference on Management of Data (COMAD'2000)
1999
1998
1997
1996
- Member, Program Committee, International Workshop on Advanced Transaction Models and Architectures (ATMA'96)
- Member, Program Committee, Fourth International Conference on Parallel and Distributed Information Systems (PDIS'96)
- Member, Program Committee, Tenth International Workshop on Distributed Algorithms (WDAG'96)
- Member, Program Committee, The Advances in Parallel and Distributed Systems Conference (APADS'96)
- Member, Program Committee, International Conference on Very Large Data Bases (VLDB'96)
- Member, Program Committee, International Conference on Parallel and Distributed Systems (ICPADS'96)
1995
- Member, Technical advisory Board, Ukiah Software Solutions, Inc., Campbell, CA.
- Member, Technical Advisory Board, Tactica Corporation, Portland, OR.
- Member, Technical Advisory Board, Digital Media International, Santa Barbara, CA.
- Member, Program Committee, ACM Symposium on Principles of Database Systems (PODS'96)
- External Member, Masters Thesis Committee, City University of Hong Kong, Hong Kong Student: Keith Mak; Chair: Professor Man Hon Wong)
- Member, Program Committee, International Conference on Parallel and Distributed Systems
- Member, Program Committee, International Conference on Information Systems and Management of Data
- Member, Program Committee, ACM SIGMOD International Conference on Management of Data
1994
1993
1992
- Member, Program Committee, Twelfth International Conference on Distributed Computing Systems
- Member, Program Committee, Second International Conference on Parallel and Distributed Information Systems
- Member, Program Committee, Second IEEE Workshop on Management of Replicated Data
- Member, Program Committee, Eighth International Conference on Data Engineering
- Member, the NSF Database and Expert Systems Review Panel, the National Science Foundation
1991