Dr. Sun Aixin is an Associate Professor and Assistant Chair (Admissions and Outreach) with School of Computer Science and Engineering (SCSE), Nanyang Technological University (NTU), Singapore. He received B.A.Sc (1st class honours) and Ph.D. both in Computer Engineering from the same school in 2001 and 2004 respectively. Aixin's research areas include Information Retrieval, Text Mining, Social Computing, and Digital Libraries. Aixin is a member of editorial board for JASIST and Information Retrieval Journal. He is an associate editor for Neurocomputing. He has been a PC member of many major conferences such as SIGIR, KDD, and WWW.

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


Our group has two openings for a project on medical text mining: Research Fellow and Research Assistant NLP.

Professional services

  • Editorial board member: JASIST, Information Retrieval Journal
  • Associate Editor: Neurocomputing
  • Conference organization:
    • SIGIR20 (Demo co-Chair)
    • PAKDD20 (Publicity co-Chair)
    • AIRS19 (PC Co-Chair)
    • ICDM18 (Demo Co-Chair), CIKM17 (Demo Co-Chair), ADMA17 (General Chair)
  • PC Member 2020: WWW, WSDM, IJCAI-PRICAI (SPC)
  • PC Member 2019: WWW, WSDM, SIGIR, NLPCC, CIKM (SPC)
  • PC Member 2018: WWW, AAAI, WSDM, SIGIR, PAKDD
  • PC Member 2017: WSDM, AAAI, SIGIR, AIRS, DSAA

Recent papers

  • CASE: Context-Aware Semantic Expansion
    Jialong Han, Aixin Sun, Haisong Zhang, Chenliang Li, Shuming Shi. AAAI. Feb 2020 NLP
  • Subtopic-Driven Multi-Document Summarization
    Xin Zheng, Aixin Sun, Jing Li and Karthik Muthuswamy. EMNLP. Nov 2019 NLP
  • Collective Named Entity Recognition in User Comments via Parameterized Label Propagation
    Minh C. Phan and Aixin Sun. JASIST. Accepted NLP
  • Community Detection on Large Complex Attribute Network
    Zhe Chen, Aixin Sun, Xiaokui Xiao. KDD. Aug 2019 DM
  • Robust Representation Learning of Biomedical Names
    Minh C. Phan, Aixin Sun and Yi Tay. ACL. July 2019 NLP IR
  • ChID: A Large-scale Chinese IDiom Dataset for Cloze Test
    Chujie Zheng, Minlie Huang and Aixin Sun. ACL. July 2019 NLP
  • A Study on Agreement in PICO Span Annotations [PDF@arXiv ]
    Grace E. Lee and Aixin Sun. SIGIR. July 2019 (Short paper) Health NLP
  • Aspect-level Sentiment Analysis using AS-Capsules [PDF@RG]
    Yequan Wang, Aixin Sun, Minlie Huang, Xiaoyan Zhu. WWW. Apr 2019 NLP
  • Learning Travel Time Distributions with Deep Generative Model [PDF@GoogleDrive]
    Xiucheng Li, Gao Cong, Aixin Sun, Yun Cheng. WWW. Apr 2019 DM
  • Deep Learning based Recommender System: A Survey and New Perspectives [PDF@RG]
    Shuai Zhang, Lina Yao, Aixin Sun, and Yi Tay. ACM Computing Surveys. 2019 RecSys
  • Towards Effective Extraction and Linking of Software Mentions from User-Generated Support Tickets. [PDF@RG]
    Jianglei Han, Ka Hian Goh, Aixin Sun, and Mohammad Akbari. ACM CIKM. Oct 2018 NER
  • Pair-Linking for Collective Entity Disambiguation: Two Could Be Better Than All [PDF@arXiv]
    Minh C. Phan, Aixin Sun, Yi Tay, Jialong Han, and Chenliang Li. TKDE. Accpeted in 2018 NER
  • Collecting Event-related Tweets from Twitter Stream
    Xin Zheng, Aixin Sun. JASIST 70(2): 176-186 (2019) IR
  • Seed-driven Document Ranking for Systematic Reviews in Evidence-Based Medicine [PDF@RG] [Slides]
    Grace E. Lee and Aixin Sun. ACM SIGIR. July 2018 Health IR
  • SegBot: A Generic Neural Text Segmentation Model with Pointer Network [Demo Link]
    Jing Li, Aixin Sun, and Shafiq Joty. IJCAI. July 2018 NLP

Working draft

  • Understanding Stability of Medical Concept Embeddings: Analysis and Prediction [arXiv ]
    Grace E. Lee, Aixin Sun. Apr 2019 Health NLP
  • A Survey on Deep Learning for Named Entity Recognition [PDF@RG arXiv ]
    Jing Li, Aixin Sun, Jianglei Han and Chenliang Li. Dec 2018 NER NLP IR


  • Dec 2019. Minh and Keke defended PhD theses.
  • Dec 2019. Aixin delivered an invited talk "Towards AI-Empowered Research Grant Administration" at the ARMS Singapore Chapter Conference 2019.
  • Nov 2019. Congratulations to Jialong's paper acceptance "CASE: Context-Aware Semantic Expansion" to AAAI 2020.
  • Sep 2019. PAKDD2020 Call for papers
  • Aug 2019. Congratulations to Zheng Xin for her EMNLP paper acceptance "Subtopic-Driven Multi-Document Summarization" NLP IR
  • May 2019. Congratulations to Minh for his ACL paper acceptance "Robust Representation Learning of Biomedical Names" NLP IR

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