Dr. Sun Aixin is an Associate Professor and Assistant Chair (Academic) at the School of Computer Science and Engineering (SCSE), Nanyang Technological University (NTU), Singapore. He has been a faculty member of SCSE since 2005 and was the Assistant Chair (Admissions and Outreach) from 2016 to 2020. He is a member of Singapore Data Science Consortium (SDSC) Technical Committee, and SDSC institution representative of NTU. His current research interests include information retrieval, text mining, social computing, and digital libraries.

Dr. Sun received B.A.Sc (1st class honours) and Ph.D. both in Computer Engineering from NTU in 2001 and 2004 respectively. He has published about 200 papers in major international journals and conferences. According to Google Scholar, his papers have received more than 13,000 citations, with h-index above 50.

Dr. Sun is an associate editor of Neurocomputing, editorial board member of Journal of the Association for Information Science and Technology (JASIST), and editorial board member of Information Retrieval Journal. He has served as the demonstration track co-chair for SIGIR2020, ICDM2018, CIKM2017, PC co-chair for AIRS2019, and general chair for ADMA2017. He was a member of the best paper committee for SIGIR2020. He has also served as Area Chair, Senior PC member or PC member for many conferences including SIGIR, WWW, WSDM, EMNLP, AAAI, and IJCAI.

Email: axsun AT ntu DOT edu DOT sg Phone: (+65) 6790 5139 Office: N4-2C-102


My group has a PhD scholarships available for the coming Aug-2022 intake. The research topic is on NLP and IR, open to Singapore citizen or permanent resident.

We also have research position openings (from Research Assistant to Research Associate). The research topic is on natural language video retrieval and localization. If you are interested in joining my team, please drop me an email.

Professional services

  • Editorial board member: JASIST, Information Retrieval Journal
  • Associate Editor: Neurocomputing
  • Conference organization and PC members:
    • 2022: WWW22 (SPC), IJCAI22 (SPC), ECIR22, SIGIR22 (SPC for long and short papers), SIGIR22 (PC for Perspectives Paper Track), KDD22 (PC for Applied Data Science Track)
    • 2021: WSDM21, IJCAI21 (AC), NAACL-HIT21 (AC), SIGIR21 (SPC), ACL21, NeurIPS21(PC for Datasets and Benchmarks Track)
    • 2020: SIGIR20 (Demo Co-Chair, Member of Best Paper Committee, PC Member), PAKDD20 (Publicity Co-Chair), EMNLP20 (AC), WWW, WSDM, IJCAI (SPC)
    • 2019: AIRS19 (PC Co-Chair), WWW, WSDM, SIGIR, NLPCC, CIKM (SPC)

Revisiting Recommender Systems

Survey papers

Recent papers


  • Apr 2022. Congratulations to Shaowen's paper acceptance to IJCAI 2022 survey track.
  • Jan 2022. Congratulations to Lin Ting's paper acceptance to PAKDD 2022
  • Jan 2022. Dr. Li Jing's survey paper on NER is officially published in TKDE
  • Sep 2021. A fully funded PhD position is available for Jan or Aug 2022 intake
  • Sep 2021. Chen Zhe defended his PhD thesis

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