Editors/Chairs/Co-Chairs

• Organizer, Workshop on Big Data for B2B Marketing and Sales, 2015
• Section Editor, Section "Social Communities", Encyclopedia of Social Network Analysis and Mining, 2012, 2016.
• Session Chair, Social Network Analysis, SIAM Conference on Data Mining, 2011
• Vice PC Chair, Infernational Conference on Web Intelligence, 2011
• Publicity Chair, International Workshop on Social Computing, Behavioral Modeling, and Prediction, 2008, 2009.

Program Committee Members

• 2016: WSDM, ICML, KDD
• 2014: WWW, SDM, ICWSM, AAAI, WebSci, ICDM, LSRS
• 2013: WWW, ASONAM, BigData, Hypertex, ICDM, IJCAI, SBP, SCA, SNAA, LSRS
• 2012: WWW, AAAI, ECML PKDD, CIKM, ASONAM, WI, LSNA, Hypertex, SNAA
• 2011: WSDM, AAAI,ECML PKDD, IJCAI, ICWSM, SDM, MOSN, SNAA

Research Proposal Reviewers

• NSF Panel, 2013-2014
• Research Grant Council (RGC), HongKong, 2011-2012

Journal Referees

• Journal of Machine Learning Research (JMLR)
• IEEE Intelligent Systems
• ACM Transactions on Information Systems (TOIS)
• Elsevier Data & Knowledge Engineering (DKE)
• IEEE Transactions on Data and Knowledge Engineering (TKDE)
• ACM Transactions on Intelligent Systems and Technology (TIST)
• Journal of Data Mining and Knowledge Discovery (DMKD)
• Social Network Analysis and Mining (SNAM)
• IEEE Transactions on Neural Networks (TNN)
• Knowledge Based Systems Journal (KBS)
• Pattern Recognition (PR)
• Machine Learning Journal (ML)
• Knowledge and Information Systems (KAIS)
• Elsevier Information Processing & Management: An International Journal (IPM)
• Intelligent Data Analysis (IDA) Special Issue on Dynamic Networks and Knowledge Discovery
• The International Journal of Artificial Intelligence, Neural Networks, and Complex Problem-Solving Technologies (APIN)
• Journal of Computing and Informatics
• Journal of Computing Science
• Systems, Man and Cybernetics - Part B
• Journal of Ambient Intelligence and Humanized Computing
• Journal of Information Science
• The WWW Journal