• Conferences
    1. Int'l Symposium on Large Spatial Databases (SSD). Steering committee. 1993-1999
    2. IEEE International Conference on Data Engineering (ICDE'10), 2010, PC member.
    3. 19th International World Wide Web Conference (WWW-2010), 2010. PC Member.
    4. 18th International World Wide Web Conference (WWW-2009), 2009. PC member.
    5. International Conference on Very Large Data Bases (VLDB'2009), 2009. PC member.
    6. IEEE International Conference on Data Engineering (ICDE'09), 2009, PC member.
    7. International Conference on Management of Data (SIGMOD'09), 2009. PC member.
    8. The 10th International Conference on Mobile Data Management (MDM'09), 2009. Industrial PC member.
    9. International Conference on Very Large Data Bases (VLDB'2008), 2008. Core DB PC Chair.
    10. 17th International World Wide Web Conference (WWW-2008), 2008. PC member.
    11. IEEE International Conference on Data Engineering (ICDE'08), 2008. Demo track PC member.
    12. Australian Database Conference (ADC'08), 2008. PC member.
    13. International Conference on Extending DataBase Technology (EDBT'2008), 2008. PC member.
    14. 16th ACM International Symposium on Advances in Geographic Information Systems (ACM GIS 2008). 2008. PC member.
    15. International Conference on Management of Data (SIGMOD'07), 2007. PC Chair.
    16. International Conference on Very Large Data Bases (VLDB'2007), 2007. PC member.
    17. International Conference on Very Large Data Bases (VLDB'2007), 2007. 10 year test-of-time award committee.
    18. 16th International World Wide Web Conference (WWW-2007), 2007. PC member.
    19. International Conference on Distributed Computing Systems (ICDCS'07), 2007. PC member
    20. 15th ACM International Symposium on Advances in Geographic Information Systems (ACM GIS 2007). 2007. PC member.
    21. International Conference on Data Engineering (ICDE'07), 2007. PC member.
    22. Australian Database Conference (ADC'07), 2007. PC member.
    23. The Twelfth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD'06). 2006. PC member.
    24. ACM Conference on Information and Knowledge Management (CIKM'06), 2006. PC member.
    25. International Conference on Extending DataBase Technology (EDBT'2006), Munich, 2006.
    26. International Conference on Very Large Data Bases (VLDB'2006), Seoul, 2006. PC member.
    27. International Conference on Data Engineering (ICDE'06), Atlanta, 2006. Vice PC-Chair.
    28. International Conference on Management of Data (SIGMOD'06), Chicago, 2006. PC member.
    29. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'2006), Singapore, 2006. Conference chair.
    30. International Conference on Mobile Data Management (MDM'2006), Japan, 2006. PC.
    31. Australian Database Conference, 2006. PC.
    32. International Conference on Very Large Data Bases (VLDB'2005), 2005, Demonstration chair.
    33. 12th International Conference on Management of Data (COMAD), 2005. PC
    34. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'2005), PC co-chair.
    35. Third International XML Database Symposium (XSym 2005). PC.
    36. 14th ACM Conference on Information and Knowledge Management (CIKM 2005). PC.
    37. 21th Int'l Conference on Data Engineering (ICDE'2005), Japan. 2005. PC member.
    38. 2005 International Conference on Web Engineering, Sydney. 2005. PC member.
    39. Int'l Conference on Web-Age Information Management, 2005. PC member.
    40. 2005 IEEE International Conference on Web Services, Orlando. 2005. PC member.
    41. 9th International Symposium on Spatial and Temporal Databases (SSTD05), Brazil, 2005. PC member.
    42. 17th International Conference on Scientific and Statistical Database Management (SSDBM 2005), Santa Barbara, 2005. PC member.
    43. International Conference on Mobile Data Management (MDM'2005), Cyprus, 2005. PC member.
    44. Australian Database Conference, 2005. PC member.
    45. 13th ACM Conference on Information and Knowledge Management (CIKM 2004), Washington, D.C. 2004. PC.
    46. 6th Workshop on Distributed Data and Structures (WDAS'2004), Lausanne, Switzerland. 2004. PC.
    47. The 11th International Conference on Cooperative Information Systems (CoopIS 2004), 2004. PC member.
    48. International Database Engineering and Applications Symposium (IDEAS'04), 2004. PC member.
    49. International Conference on Very Large Data Based (VLDB'04), 2004, Workshop selection PC.
    50. Int'l Conference on Asia Pacific Web (APWeb), 2004. PC member.
    51. Int'l Conference on Extending Data Base Technology (EDBT'2004), Greece, 2004. PC member
    52. 2nd International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P), 2004. PC Co-chair.
    53. 16th Int'l Conference on Scientific and Statistical Database Management (SSDBM'2004), Greece. 2004. PC member
    54. 20th Int'l Conference on Data Engineering (ICDE'2004), Boston, 2004. Vice PC chair
    55. 14th International Workshop on Research Issues on Data Engineering: Digital Government Services (RIDE-DGS'2004), Boston, 2004. PC member.
    56. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'2004), Korea, 2004. PC member.
    57. Australiasian Database Conference, 2004. PC member.
    58. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'2003), Japan, 2003. PC member.
    59. The 10th International Conference on Cooperative Information Systems (CoopIS 2003), November 3-7, Sicily, 2003. PC member.
    60. ACM International Conference on Management of Data (SIGMOD'2003), 2003, San Diego. PC member.
    61. International Database Engineering and Applications Symposium (IDEAS'03), 2003, PC member
    62. Int'l Conference on Asia Pacific Web (APWeb), 2003. PC member & keynote speaker.
    63. International Conference on Pacific Asia Knowledge Discovery and Datamining (PAKDD), 2003, Korea. PC member.
    64. The 3rd International Workshop on Web and Wireless GIS, 2003, Roma. PC member.
    65. International Workshop on Databases, Information Systems and Peer-to-Peer Computing, Berlin, 2003. PC member.
    66. Second International Workshop on Agents and Peer-to-Peer Computing (AP2PC 2003), Melbourne, 2003. PC member.
    67. Int'l Conference on Web-Age Information Management, 2003. PC member, panelist & keynote speaker
    68. 3rd International Conference on Mobile Data Management, Singapore, Conference Chair, 2002
    69. Int'l Conference on Very Large Data Bases (VLDB'2002), Hong Kong, 2002. PC member
    70. 18th Int'l Conference on Data Engineering (ICDE'2002), San Jose, 2002. PC member
    71. The 2nd International Workshop on Web and Wireless GIS, Singapore, 2002. PC member & keynote speaker.
    72. International Database Engineering and Applications Symposium (IDEAS'02), Edmonton, Canada, PC member
    73. Int'l Conference on Web-Age Information Management, 2002. PC member
    74. Int'l Conference on Extending Data Base Technology (EDBT'2002), Czech Republic, 2002. PC member
    75. Int'l Visual Data Base Symposium (VDB), 2002. PC member
    76. Int'l Conference on Very Large Data Bases (VLDB'2001), Italy, 2001. PC member
    77. 9th IFIP 2.6 WORKING CONFERENCE ON DATABASE SEMANTICS (DS-9), Hong Kong, 2001, PC member
    78. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'2001), HongKong, 2001. PC member
    79. The Ninth ACM Symposium on Geographic information Systems (ACM-GIS'2001), 2001. PC member
    80. The Eighth ACM Symposium on Geographic information Systems (ACM-GIS'2000), Denver, 2000. PC member
    81. IEEE Int'l Conference on Data Engineering (ICDE'2000), San Diego, 2000. Vice PC Chair
    82. Int'l Conference on Very Large Data Bases (VLDB'2000) , Cairo, 2000. PC member
    83. Int'l Conference on Web-Age Information Management , Shanghai, 2000. PC member
    84. Int'l Conference on Very Large Data Bases (VLDB'99) , Scotland, 1999. PC member
    85. Int'l Symposium on Large Spatial Databases (SSD'99) , Hongkong, 1999, PC member
    86. The Seventh ACM Symposium on Geographic information Systems (ACM-GIS'99), Kansas City, 1999. PC member
    87. The Fifth Int'l Workshop on Multimedia Information Systems (MIS'99), Palm Springs, 1999. PC.
    88. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'99), Taiwan, 1999. PC member
    89. Int'l Conference on Interoperating Geographic Information Systems (INTEROP'99), Zurich, 1999. PC member
    90. Asian Computer Science Conference, Phillippines, 1998. PC member
    91. The Sixth ACM Symposium on Geographic information Systems (ACM-GIS'98), Washington, 1998. PC member
    92. The Fifth Int'l Conference on Foundation of Data Organizations (FODO'98), Kyoto, 1998.
    93. IEEE Int'l Conference on Data Engineering (ICDE'98), USA, 1998. Far East Coordinator
    94. Int'l Conference on Extended Data Base Technology (EDBT'98), Spain, 1998. PC member
    95. The Ninth Australianasian Database Conference (ADC'98), Perth, Australia, 1998. PC member
    96. ACM Symposium on Applied Computing (SAC'97), USA, 1997. PC member
    97. Int'l Symposium on Large Spatial Databases (SSD'97), Berlin, 1997. PC member
    98. Int'l Conference on Very Large Data Bases (VLDB'97), Greece, 1997. PC member
    99. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'97), Melbourne, 1997. PC member
    100. The Seventh Australianasian Database Conference (ADC'96), Melbourne, Australia, 1996. PC member
    101. Int'l Symposium on Object Technologies for Advanced Software (ISOTA'96), Japan, 1996. PC member
    102. Int'l Conference on Very Large Data Bases (VLDB'96), India, 1996. PC member
    103. Int'l Symposium on Database Systems for Advanced Applications (DASFAA'95), Singapore,1995. PC member
    104. The Sixth Australianasian Database Conference (ADC'95), Adelaide, Australia, 1995. PC member
    105. VLDB Int'l Workshop on Temporal Databases (VLDB'95), Zurich, Switzerland, 1995. PC member
    106. Int'l Symposium on Large Spatial Databases (SSD'95), Maine, USA, 1995. PC member
    107. Int'l Conference on Deductive and Object-Oriented Databases (DOOD'95), 1995. Org. comm.
    108. Int'l Workshop on the Integration of Knowledge Discovery and Deductive and Object-Oriented Databases, 1995. PC member
    109. The Fifth Australianasian Database Conference (ADC'94), New Zealand, 1994. PC Member
    110. ACM Int'l Conference on Management of Data (SIGMOD'94), USA, 1994. PC Member
    111. ACM Symposium on Applied Computing (SAC'94), USA, 1994. PC member
    112. Int'l Conference on Applications of Databases (ADB'94), Sweden, 1994. PC member
    113. Far East Workshop on Geographic Information Systems, Singapore, 1993. Workshop Chair
    114. Int'l. Conference on Multimedia Systems (MMM'93), Singapore, 1993. PC Member
    115. Int'l Symposium on Large Spatial Databases (SSD'93), Singapore, 1993. PC Chair
    116. IFIP Int'l Conference on Semantics of Heterogeneous Database, Lorne, Australia, 1992. PC member
    117. 4th Int'l. Hong Kong Comp. Soc. Database Workshop -- Database Management Horizon, Hong Kong, 1992. PC Member
    118. Singapore Conference on Geographic Information Systems, Singapore, 1992. Panel Chair
      119.

  • Editorial
    1. IEEE Transactions on Knowledge and Data Engineering, 2003-
    2. VLDB Journal, Springer Verlag, 2002-
    3. International Journal of Geographical Information Systems (Taylor&Francis), 1994-
    4. Geoinformatica (Kluwer Academics), 1996-
    5. ACM SIGMOD Digital Symposium Collection, 2000-2003
    6. Guest editor, IEEE Transactions on Knowledge and Data Engineering, Special issues on P2P based Data Management, July 2004