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Dr. Sun Aixin is an Associate Professor and Associate Dean (Undergraduate Education) at the College of Computing and Data Science (CCDS), Nanyang Technological University (NTU), Singapore. He has been a faculty member of the college since 2005 and was the Associate Chair (Academic) from 2023 to 2024, Assistant Chair (Academic) from 2020 to 2023, and 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.

Dr. Sun received B.A.Sc (1st class honours) and Ph.D. both in Computer Engineering from NTU in 2001 and 2004 respectively. His current research interests include information retrieval, text mining, recommender systems, and social computing. He has published more than 200 papers in major international journals and conferences. According to Google Scholar, his papers have received more than 19,000 citations, with h-index 62.

Dr. Sun is an associate editor of ACM Transactions on Information Systems (TOIS), Neurocomputing, ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP), and editorial board member of Journal of the Association for Information Science and Technology (JASIST). He has served as the Doctoral Consortium co-chair for WSDM2023, 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 short paper committee for SIGIR2020 and SIGIR2022. 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: N4-2B-50

Professional services

• Associate Editor and Editorial Board Member:
  • ACM Transactions on Information Systems (TOIS)
  • ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP)
  • Journal of the Association for Information Science and Technology (JASIST)
  • Neurocomputing
• Conference organization and PC members:
  • 2024: WWW (Search Track Co-Chair). Action Editor for ARR (ACL, EACL, NAACL), SIGIR (SPC, and PC for Perspectives Paper Track), RecSys (SPC), NeurIPS (AC for Datasets and Benchmarks Track)
  • 2023: EMNLP (Publication Chair), SIGIR (SPC, and PC for Perspectives Paper Track), WWW (SPC), IJCAI (AC), WSDM (DC Co-Chair), NeurIPS (AC for Datasets and Benchmarks Track), SIGIR-AP (SPC)
  • 2022: WWW (SPC), IJCAI (SPC), ECIR, SIGIR(SPC, and PC for Perspectives Paper Track), KDD (PC for Applied Data Science Track)

Recent papers

• On Context Utilization in Summarization with Large Language Models
  Mathieu Ravaut, Aixin Sun, Nancy F. Chen, Shafiq Joty. ACL 2024. NLP
• Towards Verifiable Generation: A Benchmark for Knowledge-aware Language Model Attribution.
  Xinze Li, Yixin Cao, Liangming Pan, Yubo Ma, Aixin Sun. ACL 2024 Findings. NLP
• Parameter-Efficient Conversational Recommender System as a Language Processing Task
  Mathieu Ravaut, Hao Zhang, Lu Xu, Aixin Sun, Yong Liu. EACL 2024. NLP RecSys
• DiffuRec: A Diffusion Model for Sequential Recommendation
  Zhihao Li, Aixin Sun, Chenliang Li. ACM TOIS: 42(3), Article 66. May 2024. RecSys
• DP-GCN: Node Classification by Connectivity and Local Topology Structure on Real-World Network
  Zhe Chen, Aixin Sun. ACM TKDD. Accepted 2004. DM IR
• Large Language Model Is Not a Good Few-shot Information Extractor, but a Good Reranker for Hard Samples!
  Yubo Ma, Yixin Cao, Yong Ching Hong, Aixin Sun. EMNLP 2023 Findings. NLP IR
• Open Information Extraction via Chunks
  Kuicai Dong, Aixin Sun, Jung-jae Kim, Xiaoli Li. EMNLP 2023. NLP
• From Speculation Detection to Trustworthy Relational Tuples in Information Extraction.
  Kuicai Dong, Aixin Sun, Jung-jae Kim, Xiaoli Li. EMNLP 2023 Findings. NLP
• Dataset vs Reality: Understanding Model Performance from the Perspective of Information Need
  Mengying Yu, Aixin Sun. Journal of the Association for Information Science and Technology (JASIST). Accepted. IR
• MS-DETR: Natural Language Video Localization with Sampling Moment-Moment Interaction.
  Wang Jing, Aixin Sun, Hao Zhang and Xiaoli Li. ACL 2023. NLP
• Few-shot Event Detection: An Empirical Study and a Unified View.
  Yubo Ma, Zehao Wang, Yixin Cao and Aixin Sun. ACL 2023. NLP