====== 2014 ======
  * **Program Co-chair**, International Symposium on Neural Networks (ISNN2014), Dec. 8-10, 2014, Macau and Hong Kong
  * Invited Speaker, [[http://www2.ims.nus.edu.sg/Programs/014wliv/index.php|Workshop on Living Analytics: Analyzing High-Dimensional Behavioral and Other Data from Dynamic Network Environments]] (LARC-NUS-IMS), February 27-28, 2014, Singapore [ [[confs:larc2014|Presentation]] ]

====== 2013 ======
  * **General Co-Chair**, The 7th ACM Conference on Recommender Systems (RecSys2013), Sept/Oct 2013, Hong Kong
  * TPC, The 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining ([[http://http://asonam.cpsc.ucalgary.ca|ASONAM 2013]]), Niagara Falls, Ontartio, Canada 25-28 August 2013.
  * **Keynote**,  Asia Modelling Symposium ([[http://ams2013.info|AMS2013]]), Hong Kong, 23 – 25 July 2013.
  * Demo Track Co-Chair, World Wide Web Conference ([[http://http://www2013.org|WWW2013]]), May 13-17, 2013, Rio de Janeiro, Brazil
  * TPC, 2013 SIAM INternational Conference on Data Mining ([[http://www.siam.org/meetings/sdm13/|SDM2013]]), May 2-4, 2013, Austin, Texas, USA
  * TPC, Sixth ACM International Conference on Web Search and Data Mining ([[http://wsdm2013.org/|WSDM2013]]), February 5-8, 2013, Rome, Italy

====== 2012 ======
  * TPC, The 8th International Conference on Advanced Data Mining and Applications ([[http://adma2012.njue.edu.cn/|ADMA 2012]]), December 15-18, 2012, Nangjing, China.
  * **SPC**, The 4th Asia Conference on Machine Learning ([[http://acml12.comp.nus.edu.sg/|ACML2012]]), November 4-6, 2012, Singapore.
  * TPC, International ACM Workshop on Crowdsourcing for Multimedia ([[http://crowdmm.org/|CrowdMM 2012]])held in conjunction with ACM Multimedia 2012, Oct. 29-Nov. 2, 2012, Nara, Japan.
  * TPC, The 21st ACM International Conference on Information and Knowledge Management ([[http://www.ittc.ku.edu/CIKM12/|CIKM2012]]), Oct. 29 - Nov. 2, 2012, Maui, Hawaii, USA
  * **Keynote**, IADIS International Conference on WWW/Internet ([[http://www.internet-conf.org/|WWW/Internet 2012]]), Madrid, Spain, October 18-21, 2012
  * TPC, IADIS International Conference on WWW/Internet ([[http://www.internet-conf.org/|WWW/Internet 2012]]), Madrid, Spain, October 18-21, 2012
  * **Keynote**, The 6th International Conference on Advances in Information Technology (IAIT2012), Bangkok, Thailand, October-November, 2012.
  * **General Co-Chair**, The 2nd International Conference on Social Computing and Its Applications ([[http://kpnm.hnust.cn/confs/sca2012/index.html|SCA2012]]), Xiangtan, Hunan, China, November 1-3, 2012.
  * TPC, The 1st International Workshop on Online Social Systems ([[http://www.cs.ubc.ca/~welu/woss2012/woss2012.htm|WOSS 2012]]) in conjunction with the 38th International Conference on Very Large Databases ([[http://www.vldb2012.org/|VLDB 2012]]), Istanbul, Turkey, August 27-31, 2012
  * **General Co-Chair**, The 2012 International Conference on Advances in Social Networks Analysis and Mining ([[http://www.asonam2012.etu.edu.tr/|ASONAM2012]]), Istanbul, Turkey, August 26-29, 2012.
  * TPC, The 2nd Workshop on Social Network Analysis in Applications ([[http://www.zsi.pwr.wroc.pl/SNAA2012/index.html|SNNA2012]]), Istanbul, Turkey, 26-29 August, 2012
  * TPC, Research Track, The 18th ACM SIGKDD Conference on Knowledge Discovery and Data Mining ([[http://www.kdd.org/kdd2012/|KDD 2012]]), Beijing, China, August 12-16, 2012.
  * Workshop PC, The 18th ACM SIGKDD Conference on Knowledge Discovery and Data Mining ([[http://www.kdd.org/kdd2012/workshops_cfw.shtml|KDD Workshop]]), Beijing, China, August 12-16, 2012.
  * TPC, The ACM SIGIR Conference ([[http://www.sigir.org/sigir2012/|SIGIR2012]]), August 12-16, 2012, Portland, USA
  * TPC, Conference on Empirical Methods in Natural Language Processing and Natural Language Learning ([[http://emnlp-conll2012.unige.ch/|emnlp-conll2012]]), Jeju, Korea, July 12–14, 2012.
  * TPC, International Conference on Machine Learning ([[http://icml.cc/2012/|ICML2012]]), Edinburgh, Scotland, June 26-July 1, 2012.
  * TPC, Workshop on Social Computing, Network, and Services ([[http://www.ftrai.org/socialcomnet2012|SocialComNet-2012]]), FutureTech-2012, Vancouver, Canada, June 26-28, 2012.
  * **Tutorial Speaker**, 2012 IEEE World Congress on Computational Intelligence ([[http://www.ieee-wcci2012.org/ieee-wcci2012/|WCCI2012]]), June 10-15, 2012, Brisbane, Australia.
  *   **Tutorial Co-Chair**,  World Wide Web Conference ([[http://www2012.org|WWW2012]]), April 16-20, 2012, Lyon, France.
    * TPC, Workshop on CQA, World Wide Web Conference ([[http://www2012.org|WWW2012]]), April 16-20, 2012, Lyon, France.
    * TPC, Workshop on Appification of the Web, World Wide Web Conference ([[http://www2012.org|WWW2012]]), April 16-20, 2012, Lyon, France.
  * **Invited Speaker**, Social Recommendation at Bay Area Search Meetup, February 22, 2012, eBay Campus, San Jose, CA [ [[http://www.cse.cuhk.edu.hk/~king/PUB/BayAreaSearchMeetup2012.pdf|pdf]] ].
  * **SPC**, The Fifth ACM International Conference on Web Search and Data Mining ([[http://www.wsdm2012.org/|WSDM2012]]), February 9-12, 2012, Seattle, USA.
  * PC, Best Paper Committee, The Fifth ACM International Conference on Web Search and Data Mining ([[http://www.wsdm2012.org/|WSDM2012]]), February 9-12, 2012, Seattle, USA.
  * **Invited Speaker**, INNS Workshop on Trends in Natural and Machine Intelligence ([[http://inns.sit.kmutt.ac.th/|TNMI2012]]), January 20, 2012, Bangkok, Thailand

====== 2011 ======
  * **PC Co-Chair**, The 7th International Conference on Advanced Data Mining and Applications ([[http://arnetminer.org/adma2011|ADMA 2011]]), December 16-18, 2011, Beijing, China.
  * **General Co-Chair**, International Conference on Social Computing and Its Applications ([[http://www.swinflow.org/confs/sca2011/|SCA2011]]), December 12-14, 2011, Sydney, Australia.
  * **Tutorial Speaker**,  18th International Conference on Neural Information Processing ([[http://iconip2011.sjtu.edu.cn/|ICONIP2011]]), November 13-18, 2011, Shanghai, China.  [ {{:confs:ICONIP2011_ssl_tutorial.pdf|pdf}} ]
  * **SPC**, The 3rd Asia Conference on Machine Learning ([[http://acml2011.wikispaces.com/|ACML2011]]), November 13-15, 2011, Taoyuan, Taiwan.
  *   TPC, The 2011 Conference on Technologies and Applications of Artificial Intelligence ([[http://taai2011.cse.yzu.edu.tw/|TAAI2011]]), November 11-13, 2011, Taoyuan, Taiwan.
  * TPC, International Conference on Knowledge Discovery and Information Retrieval ([[http://www.kdir.ic3k.org/|KDIR2011]]), October 26-29, 2011, Paris, France.
  *   TPC, ACM 20th ACM International Conference on Information and Knowledge Management ([[http://www.cikm2011.org/|CIKM2011]]), October 24-28, 2011, Glasgow, UK
  * **General Co-Chair**, The 4th IEEE International Conference on Cyber, Physical and Social Computing ([[http://cpscom.org/|CPSCom 2011]]), October 19-22, 2011, Dalian, China
  * TPC, Third World Congress on Nature and Biologically Inspired Computing ([[http://www.mirlabs.org/nabic11/|NaBIC 2011]]), October 19-21, 2011, Salamanca, Spain
  * TPC, Third International Conference on Computational Aspects of Social Networks ([[http://www.mirlabs.org/cason11/|CSCoN 2011]]), October 19-21, 2011, Salamanca, Spain
  * TPC, 7th International Conference on Collaborative Computing: Networking, Applications and Worksharing ([[http://www.collaboratecom.org/2011/|CollaborateCom2011]]), October 15-18, 2011, Orlando, Florida, USA.
  * TPC, 3rd International Conference on Social Informatics ([[http://www.socinfo2011.org/|SocInfo2011]]), October 6-8, 2011, Singapore.
  * **Vice-Program Chair**, The 8th International Conference on Mobile Web Information Systems ([[http://cs-conferences.acadiau.ca/mobiwis-11/|MobiWIS]]), September 19-21, 2011, Niagara Falls, Ontario, Canada.
  * TPC, The 17th annual ACM SIGKDD International Conference on Knowledge Discovery and Data Mining ([[http://www.kdd.org/kdd/2011/|KDD 2011]]), August 21-24, 2011, San Diego, USA.
   * TPC, Mining Data Semantics ([[http://vivo-onto.slis.indiana.edu/MDS2011/|MDS'11]]) Workshop at the 17th annual ACM SIGKDD International Conference on Knowledge Discovery and Data Mining ([[http://www.kdd.org/kdd/2011/|KDD 2011]]), August 21-24, 2011, San Diego, USA.
  * **SPC**, AI and the Web Track, The Twenty-Fifth Conference on Artificial Intelligence ([[http://www.aaai.org/Conferences/AAAI/aaai11.php|AAAI-11]]), August 7-11, 2011, San Francisco, USA.
  * Publicity Chair, International Joint Conference on Neural Networks ([[http://www.ijcnn2011.org|IJCNN2011]]), July 31-August 5, 2011, San Jose, USA.
  * **General Co-Chair** of The 3rd Workshop on Social Web Search and Mining ([[http://arnetminer.org/SWSM_2011|SWSM2011]]): Analysis of User Generated Content Under Crisis , The 34th Annual ACM SIGIR Conference ([[http://www.sigir2011.org/|SIGIR2011]]), July 24-28, 2011, Beijing, China.
  * TPC, First Workshop on Social Network Analysis in Applications ([[http://www.zsi.pwr.wroc.pl/SNAA/|SNAA2011]]), July 25-27, 2011, Kaohsiung, Taiwan.
  * TPC, The 2011 Workshop on Social Computing, Network, and Services ([[http://www.ftrai.org/socialcomnet2011|SocialComNet-2011]]) will be held in conjunction with FutureTech-2011,  June 28-30, 2011, Crete, Greece.
  * Finance Chair, The 41st Annual IEEE/IFIP International Conference on Dependable Systems and Networks ([[http://2011.dsn.org/|DSN 2011]]), June 27-30, 2011, Hong Kong
  * TPC, Workshop on the uses of Agents for Education, Games and Simulations ([[http://www.windmill-cottage.net/AEGS-11/index.html|AEGS2011]]) in conjunction with the Tenth International Conference on Autonomous Agents and Multiagent Systems ([[http://www.aamas2011.tw/|AAMAS2011]]), May 2-6, 2011, Taipei, Taiwan.
  * **Program Co-Chair**, IEEE ([[http://ieee-ssci.org/|SSCI]]) Symposium Series on Computational Intelligence and Data Mining ([[http://ieee-ssci.org/2011/cidm-2011|CIDM2011]]), April 11-15, 2011, Paris, France.
  * TPC Content Analysis Track, World Wide Web Conference ([[http://wwwconference.org/www2011/|WWW2011]]), March 28-April 1, 2011, Hyderabad, India.
  * TPC, International Conference on Social Computing, Behavioral-Cultural Modeling, and Prediction ([[http://www.umiacs.umd.edu/conferences/sbp2011/index.html|SBP11]]), March 28-31, 2011, University of Maryland, College Park, USA.
  * **General Chair**, The Fourth ACM International Conference on Web Search and Data Mining ([[http://www.wsdm2011.org/|WSDM2011]]), February 9-12, 2011, Hong Kong.

/*
* General Chair, Workshop on Computational Intelligence in Social Computing, April 11-15, 2011, Paris, France
*/


====== 2010 ======
  * **Invited Talk**, The Eighth ICSA International Conference: Frontiers of Interdisciplinary and Methodological Statistical Research ([[http://www.icsa2.org/Intl_2010/|ICSA2010]]), December 19-22, 2010, Guangzhou, China.  (//Did not attend due to extenuating  circumstances.//)
  * TPC, Computer Vision and Pattern Recognition Track, Asia Pacific Signal and Information Processing Association ([[http://www.apsipa.org/|APSIPA2010]]), December 15-17, 2010, Singapore.
  * Attendee, IEEE Workshop on Spoken Language Technology ([[http://www.slt2010.org/|SLT2010]]), December 12-15, 2010, Berkeley, USA.
  *   **Workshop Organizer**, [[http://nips.cc/Conferences/2010/Program/event.php?ID=1998|Workshop]] on [[http://mlg.cs.purdue.edu/doku.php?id=mlsc2010|Machine Learning for Social Computing]].  Twenty-Fourth Annual Conference on Neural Information Processing Systems ([[http://nips.cc/Conferences/2010/|NIPS2010]]), December 11, 2010, Whistler, BC, Canada.
  *   **Course Speaker**, //Introduction to Social Computing//.  2010 [[http://eii.edu.au/phd-school-10/program|EII PhD School: Cloud Computing, Service Computing & Social Networks]], November 23-27, 2010, Sydney, Australia.
  * **Advisory Board**, 17th International Conference on Neural Information Processing ([[http://cs.anu.edu.au/iconip2010/|ICONIP2010]]), November 22-25, 2010, Sydney, Australia.
  * Session Chair, 17th International Conference on Neural Information Processing ([[http://cs.anu.edu.au/iconip2010/|ICONIP2010]]), November 22-25, 2010, Sydney, Australia.
  * **Keynote Speaker**, //The Era of Social Computing//.  The 2010 Conference on Technologies and Applications of Artificial Intelligence ([[http://taai2010.nctu.edu.tw/|TAAI2010]]), November 18-20, 2010, Hsinchu, Taiwan.
  * **Program Co-Chair**, The 2010 Conference on Technologies and Applications of Artificial Intelligence ([[http://taai2010.nctu.edu.tw/|TAAI2010]]), November 18-20, 2010, Hsinchu, Taiwan.
  * **Keynote**, The 5th Conference on Intelligent Systems and Knowledge Engineering ([[http://iske2010.nit.net.cn/|ISKE2010]]), November 15-16, 2010, Hangzhou, China.   (//Did not attend due to extenuating  circumstances.//)
  * **International Advisory Board**, 2nd International Conference on IT & Business Intelligence ([[http://imtnagpur.ac.in/itbi10/committees.html|ITBI-10]]), November 12-14, 2010, Nagpur, India.
  * **Invited Talk**, The 1st International Workshop on Semantic Web, Mobile Web, and Social Networks, November 4-5, 2010, KAIST, Daijeon, Korea.  (//Did not attend due to extenuating  circumstances.//)
  *   Session Chair, ACM 19th ACM International Conference on Information and Knowledge Management ([[http://www.yorku.ca/cikm10/|CIKM2010]]), October 26-30, 2010, Toronto, Canada
  *   TPC, ACM 19th ACM International Conference on Information and Knowledge Management ([[http://www.yorku.ca/cikm10/|CIKM2010]]), October 26-30, 2010, Toronto, Canada
  * TPC, International ACM Conference on Management of Emergent Digital EcoSystems ([[http://sigappfr.acm.org/MEDES/10|MEDES'10]]), October 26-29, 2010, Bangkok, Thailand.
  * TPC, XX Brazillan Symposium on Artificial Intelligence ([[http://www.jointconference.fei.edu.br/|SBIA2010]]), October 2010, Sao Bernardo do Campo, Brazil.
  * TPC, International Conference on Computational Aspects of Social Networks ([[http://www1.tyust.edu.cn/cason/|CASoN2010]]), September 26-28, 2010, Taiyuan, China.
  * **Program Co-Chair**, [[http://www.yorku.ca/wiiat10/index.php|IEEE WIC/ACM International Conference]], August 31-September 3, 2010, Toronto, Canada
  * TPC, The 3rd Workshop on Collective Intelligence in Semantic Web and Social Networks ([[http://resources.smile.deri.ie/ciswsn2010/|CISWSN 2010]]), co-located with IEEE/WIC/ACM Joint International Conference on Web Intelligence and Intelligent Agent Technology 2010, August 31-September 3, 1020, Toronto, Canada
  * TPC, 20th International Conference on Pattern Recognition ([[http://www.icpr2010.org/|ICPR2010]]), August 23-26, 2009, Istanbul, Turkey
  * TPC, Tenth International Conference on Hybrid Intelligent Systems ([[http://mirlabs.org/his10//|HIS2010]]), August 23-25, 2010, Atlanta, USA.
  * **Workshop Co-Chair**, The 16th ACM SIGKDD Conference on Knowledge Discovery and Data Mining ([[http://www.kdd.org/kdd2010/index.htm|KDD2010]]), August, 2010, Washington DC, USA.
  * **General Co-Chair**, Workshop on Social Media and Web. 2.0 to be held in conjunction with The 6th International Conference on Intelligent Environments ([[http://intelligentenvironments.org/conferences/ie10|IE'10]]), July 19-21, 2010, Kuala Lumpur, Malaysia.
  * TPC, 2010 IEEE World Congress on Computational Intelligence ([[http://www.wcci2010.org|IJCNN2010]]), July 18-23, 2010, Barcelona, Spain.
   * **Tutorial Speaker**, 2010 IEEE World Congress on Computational Intelligence ([[http://www.wcci2010.org|IJCNN2010]]), July 18-23, 2010, Barcelona, Spain.
  * TPC, The 8th International Conference on Web Services ([[http://conferences.computer.org/icws/2010/|ICWS2010]]), July 5-10, 2010, Miami, Florida, USA.
  * TPC, Workshop on Feature Selection in Data Mining ([[http://featureselection.asu.edu/fsdm10/|FSDM2010]]) in conjunction with The 14th Pacific-Asia Conference on Knowledge Discovery and Data Mining ([[http://www.iiit.ac.in/conferences/pakdd2010/|PAKDD2010]]), June 31-24, 2010, Hyderabad, India
  * TPC, 21st ACM Conference on Hypertext and Hypermedia ([[http://www.ht2010.org/|HT2010]]), June 13-16, 2010, Toronto, Canada.
  * **Keynote**, How Social Computing Impacts Society, The 2nd International Conference on E-business and Information System Security ([[http://www.icebiss.org/ebiss2010/index.html|EBISS2010]]), May 21-23, 2010, Wuhan, China.
  * **Tutorial Speaker**, //Introduction to Social Recommendation//, World Wide Web Conference ([[http://www2010.org|WWW2010]]), April 26-30, 2010, Raleigh, NC, USA
  * TPC Search Track, World Wide Web Conference ([[http://www2010.org|WWW2010]]), April 26-30, 2010, Raleigh, NC, USA.
  * Member, Awards Committee, World Wide Web Conference ([[http://www2010.org|WWW2010]]), April 26-30, 2010, Raleigh, NC, USA.
  * **Tutorial Speaker**, //Introduction to Social Computing//.  Database Systems for Advanced Applications ([[http://dasfaa2010.cs.tsukuba.ac.jp/|DASFAA2010]]), April 1-4, 2010, Tsukuba, Japan
  * TPC, Social Computing, Behavioral Modeling and Prediction ([[http://sbp.asu.edu/|SBP2010]]), March 29-April 1, 2010. Bethesda, USA.
  * **Keynote**, //Computer Ethics: A Case Study of Plagiarism in Higher Education//.  The 2nd International Workshop on Education Technology and Computer Science ([[http://www.icetcs.org/etcs2010/|ETCS2010]]), March 6-7, 2010, Wuhan, China.
  * TPC, ACM [[http://www.wsdm-conference.org/2010/|WSDM2010]], February 4-6, 2010, New York City, USA.

====== 2009 ======
  * **Keynote**, Future Generation Information Technology 2009 ([[http://www.sersc.org/FGIT2009/index.php|FGIT2009]]), December 10-12, 2009, Jeju Island, South Korea
  * **Advisory Committee**, 16th International Conference on Neural Information Processing ([[http://www.iconip09.org/|ICONIP'09]]), December 1-5, 2009, Bangkok, Thailand
  * **Tutorial Speaker**, 16th International Conference on Neural Information Processing ([[http://www.iconip09.org/|ICONIP'09]]), December 1-5, 2009, Bangkok, Thailand
  * TPC, The Twelfth IASTED International Conference on Computers and Advanced Technology in Education ([[http://www.iasted.org/CONFERENCES/home-672.html|CATE2009]]), November 22 – 24, 2009, St. Thomas, US Virgin Islands
  * TPC, 5th International Conference on Collaborative Computing: Networking, Applications and Worksharing ([[http://www.collaboratecom.org/|CollaborateCom2009]]), November 11-14, 2009, Crystal City, Washington D.C., USA
  * **Invited Talk**, Forum on CyberSpace and Social Computing (CyberSocialCom-09), November 9, 2009, Vaton Yunqi Resort Hotel (杭州华庭云栖度假酒店), Hangzhou, China 
  * **Invited Talk**, The 7th Chinese Workshop on Machine Learning and Applications ([[http://lamda.nju.edu.cn/conf/mla09/|MLA'09]]), November 6-8, 2009, Nanjing University, Nanjing, China
  * **General Co-Chair**, Workshop on Social Web Search and Mining ([[http://arnetminer.org/confs/SWSM2009/|SWSM2009]]) in conjunction with the ACM Eighteenth Conference on Information and Knowledge Management ([[http://www.ischool.drexel.edu/cikm2009/about/index.asp|CIKM2009]]), November 2-6, 2009, Hong Kong, China
  * TPC, Workshop on Complex Networks meet Information & Knowledge Management ([[http://www.dcs.bbk.ac.uk/~dell/cnikm09/|CNIKM]]) in conjunction with the ACM Eighteenth Conference on Information and Knowledge Management ([[http://www.ischool.drexel.edu/cikm2009/about/index.asp|CIKM2009]]), November 2-6, 2009, Hong Kong, China
  * Session Chair, Link Analysis and Social Computing, The ACM Eighteenth Conference on Information and Knowledge Management ([[http://www.ischool.drexel.edu/cikm2009/about/index.asp|CIKM2009]]), November 2-6, 2009, Hong Kong, China
  * TPC, ACM Eighteenth Conference on Information and Knowledge Management ([[http://www.ischool.drexel.edu/cikm2009/about/index.asp|CIKM2009]]), November 2-6, 2009, Hong Kong, China
  * TPC, The 1st Asian Conference on Machine Learning ([[http://lamda.nju.edu.cn/conf/acml09/|ACML'09]]), November 2-4, 2009, Nanjing, China
  * **Workshop Program Co-Chair**, The first SIGMM Workshop on Social Media (WSM2009) in conjunction with ACM Multimedia 2009 ([[http://www.acmmm09.org/default.aspx|ACM MM'09]]), October 19-24, 2009, Beijing, China
  * **Invited Speaker**, 2009 Pacific Neighborhood Consortium (PNC) Annual Conference and Joint Meetings ([[http://www.pnclink.org/pnc2009/english/index.html|PNC2009]]), October 6-8, 2009, Taipei, Taiwan
  * TPC, Special Session on [[http://www.iit.pwr.wroc.pl/~krzysiek/rwsn.html |Dynamic of Real-World Social Networks]] in the 1st International Conference on Computational Intelligence - Semantic Web, Social Networks and Multiagent Systems ([[http://isccci.org/iccci-09/ |ICCCI'09]]), 5-7 October 2009, Wrocław (Poland)
  * TPC, 2009 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference ([[http://www.gcoe.ist.hokudai.ac.jp/apsipa2009/|APSIPA ASC 2009]]), October 4-7, 2009, Sapporo, Japan
  * TPC, The 2009 IEEE/WIC/ACM International Conferences on Web Intelligence ([[http://www.wi-iat09.disco.unimib.it/|WI'09]]) and Intelligent Agent Technology (IAT'09), September 15-18, 2009, Milano, Italy
  * TPC, The 2009 IEEE International Conference on Social Computing ([[http://cse.stfx.ca/~socialcom09/|SocialCom-09]]), August 29-31, 2009, Vancouver, Canada
    * **General Co-Chair**, Workshop on Social Computing in Education ([[http://groups.google.com/group/WSCE2009/|WSCE2009]]), in conjunction with The 2009 IEEE International Conference on Social Computing ([[http://cse.stfx.ca/~socialcom09/|SocialCom-09]]), August 29-1, 2009, Vancouver, Canada
  * **General Co-Chair**, The Fourth BJ-HK Doctoral Forum ([[http://wiki.cse.cuhk.edu.hk/PHDForum/2009/start|BJ-HK PhDForum 2009]]), August 6-10, 2009, Hong Kong, China
  * Reviewer, The 32nd Annual ACM SIGIR Conference ([[http://sigir2009.org/|SIGIR2009]]), July 19-23, 2009, Boston, USA
  * TPC, Twenty-first International Joint Conference on Artificial Intelligence ([[http://ijcai-09.org/index.html|IJCAI-09]]), July 11-17, 2009, Pasadena, USA
  * TPC, International Conference on Computational Aspects of Social Networks ([[http://www.mirlabs.org/cason09/|CASoN2009]]), June 24-27, 2009, Fontainebleau, France
  * **Invited Speaker**, International Workshop on Multimedia Technologies for Education ([[http://iwmte.csie.ntnu.edu.tw/|IWMTE2009]]), June 26, 2009, Taipei, Taiwan
  * **Plenary**, 16th International Conference on Systems, Signals and Image Processing ([[http://www.teihal.gr/iwssip09/index.htm|IWSSIP2009]]), June 18-20, 2009, Chalkida, Greece
  * TPC, International Joint Conference on Neural Networks ([[http://cnd.memphis.edu/ijcnn2009/|IJCNN2009]]), June 14-19, 2009, Atlanta, Georgia
  * **Panel Chair**, International Joint Conference on Neural Networks, [[http://cnd.memphis.edu/ijcnn2009/panels.html|IJCNN2009 Panels]], June 14-19, 2009, Atlanta, Georgia
  * Panel Session Co-Chair, International Joint Conference on Neural Networks, [[http://cnd.memphis.edu/ijcnn2009/panels.html|IJCNN2009 Panels]], June 14-19, 2009, Atlanta, Georgia
  * TPC, Frontier of Algorithmics Workshop ([[http://faw2009.hfut.edu.cn/|FAW2009]]), June 20-23, 2009, Hefei, China
  * TPC Search Track, [[http://www2009.org|WWW2009]], April 20-24, 2009, Madrid, Spain
  * TPC Tutorial Track, [[http://www2009.org|WWW2009]], April 20-24, 2009, Madrid, Spain
  * **Tutorial Speaker**, [[http://www2009.org|WWW2009]], April 20-24, 2009, Madrid, Spain
  * Member of the WWW2009 Best Paper Award Committee, [[http://www2009.org|WWW2009]], April 20-24, 2009, Madrid, Spain
  * Panel Moderator, 25th International Conference on Data Engineering ([[http://i.cs.hku.hk/icde2009/|ICDE2009]]), March 29-April 4, 2009, Shanghai, China
    * [[http://wiki.cse.cuhk.edu.hk/irwin.king/confs/icde2009panel|ICDE2009 Panel]] on Social Networks Mining and Search, ICDE2009, March 29-April 4, 2009, Shanghai, China
  * TPC, 2009 Symposium on Computational Intelligence and Data Mining ([[http://www.ieee-ssci.org/index.php?q=node/14|CIDM2009]]), March 30-April 2, 2009, Sheraton Music City Hotel, Nashville, TN, USA
  * Attendee, Microsoft Research Asia Mobile Computing in Education Theme Workshop 2009 ([[http://www.msramce.com/|MSRAMCE2009]]), March 16-17, 2009, Beijing, China
  * **Keynote**, 2009 International Symposium on Education and Computer Science ([[http://www.ieee-education.org.cn/indexen.html|ECS2009]]), March 7-8, 2009, Wuhan, China

/*
  * Chair, [[WWW2009 Workshop:home|WWW2009 Workshop on Social Computing]], April 20-24, 2009, Madrid, Spain
*/

====== 2008 ======
  * **General Co-Chair**, [[http://phd2008.cs.tsinghua.edu.cn/index.htm|Beijing-Hong Kong Doctoral Forum 2008]], December 21-24, 2008, Beijing, China
  * Panel Member, Neural network applications: The present and the future, [[http://www.aut.ac.nz/iconip08/|ICONIP2008]], November 25-28, 2008, Auckland, New Zealand
  * **Panel Chair**, [[http://www.aut.ac.nz/iconip08/|ICONIP2008]], November 25-28, 2008, Auckland, New Zealand
    * [[iconip2008panel1|Panel on The Presence and the Future...]]
    * [[iconip2008panel2|Panel on Conducting and publishing research...]]
  * **Invited Talk**, The 6th Chinese Workshop on Machine Learning and Applications ([[http://lamda.nju.edu.cn/conf/MLA08/|MLA'08]]), November 7-9, 2008, Nanjing University, Nanjing, China
  * **Session Chair**, ACM 17th Conference on Information and Knowledge Management ([[http://www.cikm2008.org/|CIKM2008]]), October 26-30, 2008, Napa Valley, USA
  * TPC Information Retrieval Track, ACM 17th Conference on Information and Knowledge Management ([[http://www.cikm2008.org/|CIKM2008]]), October 26-30, 2008, Napa Valley, USA
  * TPC, 8th International Conference on Hybrid Intelligent Systems ([[http://his2008.lsi.upc.edu/|HIS2008]]), September 10-12, 2008, Barcelona, Spain
  * **General Chair**, International Workshop on Advanced Computational Intelligence ([[iwaci2008:home|IWACI2008]]), June 7-8, 2008, Macau, China
  ***Workshop Chair**, **Panel Moderator**, **Special Session Chair**, World Congress on Computational Intelligence ([[http://www.wcci2008.org|WCCI2008]]), June 1-6, 2008, Hong Kong, China
    * [[wcci2008workshops|Workshops]]
    * [[wcci2008ss|Special Session 22]]
    * [[wcci2008panel|Panel]]
  * **Workshop Chair**, World Wide Web ([[http://www.www2008.org|WWW2008]]), April 21-25, 2008, Beijing, China
    * [[http://wiki.cse.cuhk.edu.hk/WWW2008/|Workshops]]

====== 2007 ======

  * **Program Co-Chair**, 2007 International Joint Conference on Neural Networks [[http://www.ijcnn2007.org/|IJCNN2007]], August 12-17, 2007, Orlando, USA

===== Conference Attended =====
  * [[http://nips.cc/Conferences/2008/|NIPS2008]]
  * [[http://www.aut.ac.nz/iconip08/|ICONIP2008]]
  * [[http://lamda.nju.edu.cn/conf/MLA08/index.htm|MLA2008]]
  * [[http://research.microsoft.com/asia/ur/workshop08/is/|Microsoft Research Asia-Tsinghua University Workshop on Internet Services and Cloud Computing]]
  * [[http://research.microsoft.com/ur/asia/summit08|Microsoft Research Asia Faculty Summit 2008]]
  * [[http://www.cikm2008.org/|CIKM2008]]
  * [[http://edcommunity.apple.com/ali/story.php?itemID=9671|Apple Distinguished Educator Workshop 2008]]
  * [[iwaci2008:home|IWACI2008]]
  * [[http://www.wcci2008.org|WCCI2008]]
  * [[http://www.www2008.org|WWW2008]]
====== 2007 ======
  * **Program Co-Chair**, International Joint Conference on Neural Networks ([[http://www.ijcnn2007.org|IJCNN2007]]), August 12-17, 2007, Orlando, USA
  * **General Co-Chair**, The Second Beijing-Hong Kong International Doctorla Forum ([[http://wiki.cse.cuhk.edu.hk/PHDForum2007/|Second BJ-HK International Doctoral Forum 2007]]), July 3-6, 2007, Hong Kong, China
====== 2006 ======
  *  **Program Co-Chair**, International Conference on Neural Information Processing ([[http://www.iconip2006.org|ICONIP2006]]), October 3-6, 2006, Hong Kong, China