Conferences
- 20th International World Wide Web Conference (WWW-2011), 2012.
PC member.
- ACM International Conference on Management of Data (SIGMOD), 2012.
PC member.
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IEEE International Conference on Data Engineering (ICDE'12), 2012.
PC Chair.
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past activities: 1992-2010
Journals
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IEEE Transactions on Knowledge and Data Engineering, Editor-in-Chief, 2009-2012
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Distributed and Parallel Databases, Springer. Editor, 2008-.
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IEEE Transactions on Knowledge and Data Engineering, Editor, 2003-2007
- VLDB Journal, Springer Verlag, Editor, 2002-2007
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International Journal of Geographical Information Systems (Taylor&Francis).
Editor, 1995-2005
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Geoinformatica (Kluwer Academics). Editor, 1997--2005
Trustee
- VLDB Endowment, Trustee board member. 2006-2013. Secretary: 2010-2013.
Others
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SIGMOD Jim Gray Best Thesis Award committee, co-Chair, 2008-2011.
(Committee member. 2005-2008)
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Evaluator for promotion/new hire cases for
various Universities in Hongkong, Taiwan, US, Canada
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Evaluator for Grant Proposals for various overseas funding agencies