I am on the editorial board of Information Retrieval, a Springer journal.

I also serve as the ACL Anthology Editor, as of 2008, and was elected to be be board member of the executive committee of the Association of Computational Linguistics, as their first information officer.

I have edited special issues of the IJDL (on very large digital libraries) and the IJCLCLP on Chinese language question answering.

I served as the registration chair for SIGIR 2008 and have served as publicity chair and helped out in the local organization for ACL-IJCNLP 2009. I have also served as the publication chair of AIRS 2006.

I served as the program co-chair for AIRS 2010, held in Taipei, Taiwan. I have also organized the inaugural NLPIR4DL workshop.

I am an active member of the community, serving as a reviewer and program committee for a number of conferences in my active research areas. In digital libraries, I have reviewed for JCDL ('12, '11, '09, '08, '07, '06 and '05), TPDL/ECDL ('12, '10) and ICADL ('12, '10, '07 and '03). In computational linguistics and natural language processing, I served as area chair for information extraction in ACL '08, and area chair for summarization in '12. I have reviewed for ACL ('12, '11, '09, '05 and '03), EACL ('08), EMNLP ('11, '08, '07, '06, '05), HLT-NAACL ('09, '07 and '06), RANLP ('07 and '05), COLING ('10 and '04), INLG '04 and IJCNLP '04. I have also reviewed for information retrieval (SIGIR '09). I have also reviewed as a specialist in human-computer interaction - IUI ('07 and '06), Document Engineering (DocEng '12), multimedia - CIVR '06 and in general AI conferences (in the computational linguistics track) - IJCAI ('07 and '05), and for AAAI ('11).

I have also served as a reviewer for a number of specific workshops including ACL's R50 workshop ('12), AIRS ('10, '06 and '05), BUCC ('10 and '09), BioNLP ('10), CAW ('09), CREDISLAS ('12), ESIRMT-HyTra ('12), MMIES ('08, '07 and '06), MWE ('10, '09), RDSRP ('12 and '11), WEAS ('12) and WIDM ('05, '04 and '03),

I have also been a one-off reviewer for a few other journals, such as ACM Transactions on Information Systems (TOIS), ACM Transactions on the Web (TWEB), Information Processing and Management (IPM), Data and Knowledge Engineering (DKE), and the International Journal of Information Technology (IJIT). I have also helped with reviewing articles in JCST.

I do a small amount of consulting work for industry as well. I've acted as an external examiner for grant proposals in Malaysia and Hong Kong and thesis examiner for theses in New Zealand. I was previously a board member and auditor for the Singapore chapter of the Int'l Assoc. for Pattern Recognition (PREMIA).

I am a technical advisor to Wordster, Inc., makers of Mobilewalla.

• I serve as the Assistant Director of the Interactive and Digital Media Institute at NUS.
• I am a member of the NUS Graduate School for Integrative Sciences and Engineering (since 2012) and am eligible to supervise students matricated into this programme.
• I manage the School's current Term Project Showcase event, held at the end of the academic semesters.
• I serve on the School's Executive Committee, as the representative for all associate professors.
• I serve on the Graduate Studies Committee and on our Final (previously, "Honors") Year Project Committee from 2009-current and previously in 2006-2008.
• I was the assistant coordinator for the undergraduate bachelors programme on the (now-defunct) Communications and Media.
• I served on the University's committee investigating student's qualitative feedback in 2007, led by Prof. KP Mohanan.
• I served as the assistant professor representative on our school's executive committee (2004/2005).
• I served in the school's IOI/NOI committee, for years 2003-7.
• I started the new staff FAQ for SoC new staff, now defunct.