Professional Activities
Conferences
  1. ACM International Conference on Management of Data (SIGMOD), 2017. PC member.
  2. ACM International Conference on Management of Data (SIGMOD), 2016. PC member.
  3. IEEE International Conference on Data Engineering (ICDE'15), 2015. PC member.
  4. 22nd International World Wide Web Conference (WWW-2014), 2014. PC member.
  5. ACM International Conference on Management of Data (SIGMOD), 2014. PC member.
  6. IEEE International Conference on Data Engineering (ICDE'14), 2014. PC member.
  7. ACM International Conference on Management of Data (SIGMOD), 2013. Tutorial selection committee.
  8. IEEE International Conference on Data Engineering (ICDE'13), 2013. Conference Chair.
  9. 21st International World Wide Web Conference (WWW-2013), 2013. PC member.
  10. 20th International World Wide Web Conference (WWW-2012), 2012. PC member.
  11. ACM International Conference on Management of Data (SIGMOD), 2012. PC member.
  12. IEEE International Conference on Data Engineering (ICDE'12), 2012. PC Chair.
  13. past activities: 1992-2010
Journals
  1. Journal of Big Data Research, Elsevier, co-Editor-in-Chief, 2014-2015.
  2. IEEE Transactions on Knowledge and Data Engineering, Editor-in-Chief, 2009-2012
  3. Distributed and Parallel Databases, Springer. Editor, 2008-.
  4. IEEE Transactions on Knowledge and Data Engineering, Editor, 2003-2007
  5. VLDB Journal, Springer Verlag, Editor, 2002-2007
  6. International Journal of Geographical Information Systems (Taylor&Francis). Editor, 1995-2005
  7. Geoinformatica (Kluwer Academics). Editor, 1997--2005
Trustee
  1. VLDB Endowment, Trustee board member. 2006-2017. Secretary: 2010-2013. President: 2014-2017.
Others
  1. SIGMOD Jim Gray Best Thesis Award committee, co-Chair, 2008-2011. (Committee member. 2005-2008)
  2. Evaluator for promotion/new hire cases for various Universities in Hongkong, Taiwan, US, Canada
  3. Evaluator for Grant Proposals for various overseas funding agencies