top of page
Stock Market Quotes

Chua Tat-Seng 蔡达成



I'm a professor of computer science at the National University of Singapore

I devote my life to exploring and researching unstructured data analytics, recommendation systems, trustable AI, and emerging e-commerce & Fintech applications. You can find my works in a wide range of leading conferences and scholarly publications. As an academic, I supervise many Ph.D. students and manage the NExT++ Center, a joint research center between NUS and Tsinghua University focusing on Extreme Search.



Research Interest

My main research interests include unstructured data analytics, multimedia information retrieval, recommendation and conversation systems, and the emerging applications in e-commerce and fintech. To further research emerging topics in these areas, I set up the Lab for Media Search (LMS) at SoC and conduct regular seminars. Since 2010, I have served as the co-Director of NExT Center, a joint research center between NUS and Tsinghua University on Extreme Search. the co-Director of NExT Center, a joint research center between NUS and Tsinghua University on Extreme Search. For my current list of research topics, please refer to Please visit the following websites for more information.



A full list of my publications can be found on the following website:

List of Best Paper Awards

  • 2020 Best Paper Award, ACM Multimedia 2020 (Liang et al., PiRhDy: Learning Pitch-, Rhythm-, and Dynamics-aware Embeddings for Symbolic Music. Seattle, USA, Oct 2020)

  • 2019 CSVT Transactions Best Paper Award, IEEE Trans on Circuits and Systems for Video Technology (Han et al., Joint Content Replication and Request Routing for Social Video Distribution Over Cloud CDN: A Community Clustering Method, Vol: 26, Issue: 7, Jul 2016)

  • 2018 Best Department Article Award, IEEE Multimedia (Cui, et al., Social Sensed Multimedia Computing, Jan 2016)

  • 2016 Honorable Mention Award, ACM SIGIR’ 2016 (Zhang et al., Discrete Collaborative Filtering, Pisa Italy, Jul 2016)

  • 2015 IEEE Multimedia Best Paper Award, IEEE Multimedia Magazine (Hu et al., Towards Multi-Screen Social TV with Geolocation-Aware Social Sense, 31(3): 10-19, 2014)

  • 2015 Prize Paper Award Honorable Mention, IEEE Transactions on Multimedia (Hong et al., Movie2Comics: Towards a Lively Video Content Presentation, 14(3-2): 858-870, 2012)

  • 2015 Best Paper Runner-up Award, MMM ‘2015 (Gao et al. Multimedia Social Event Detection in Microblog, Sydney, Australia, Jan 2015)

  • 2013 Best Student Paper in ACM Multimedia (Zhang et al., Attribute-augmented semantic hierarchy: towards bridging semantic gap and intention gap in image retrieval. 33-42, Barcelona, Spain, Oct 2013).

  • 2011 Best Paper Award, MMM‘2011 (Zhao et al. Tat-Seng Chua. Generating Representative Views of Landmarks via Scenic Theme Detection, Taiwan, Jan 2011).

  • 2010 Best Paper Award, ACM Multimedia 2010 (Hong et al., Dynamic Captioning: Video Accessibility Enhancement for Hearing Impairment, Florence, Italy, Oct 2010)

  • 2008 Best Student Paper Award, MMM’ 2008 (Zheng et al., Object-based Image Retrieval beyond Visual Appearances, Tokyo, Japan. Jan 2008)

  • 2007 Best Paper Award, MMM’ 2007 (Marchenko et al., Ontology-based Annotation of Paintings using Transductive Inference Framework, Springer-Verlag, LNCS 4351. 13-23.

  • 2007 Best Paper Award, PCM ‘2007 (Marchenko et al. Auto-Annotation of Paintings using Social Annotations, Domain Ontology and Transductive Inference, Hong Kong, Dec 2007)

Research Grant

  • Title: NExT++: Towards Web Intelligence and User Empowerment. Collaborators: Tsinghua University, University of Southampton. Source: National Research Foundations, Singapore. Grant: S$12,000,000. Duration: Oct 2016 – Mar 2021.

  • Title: Base Metals Price Forecasting from Alternate Data Sources Using AI. Collaborator: Four Elements Capital. Source: AI Singapore. Grant: S$200,000. Duration: Oct 2018 - Sep 2020.

  • Title: Multilingual Multimodal Knowledge Graph (M3KG). Collaborator: Tsinghua University. 
    National Natural Science Foundation of China, National Research Foundations, Singapore. Grant: S$500,000. Duration: May 2017 – Apr 2019.

  • Title: NExT Search Center. Collaborators: NUS and Tsinghua University. Source: Infocomm Media Development Authority & National Research Foundation, Singapore. Grant: S$11,000,000. Duration: May 2010 – Sep 2016.

  • Title: Intelligent Local Media SearchSource: Singapore Press Holdings, Singapore. Grant: S$2,300,000. Duration: Aug 2008 – Jun 2010




Academic Year 2021/2022

  • TBA


Graduate Students

​I have supervised 37 Ph.D. students since 2004.

  • 2021: Zhao Na

  • 2020: Gelli Francesco

  • 2019: Wang Xiang; Feng Fuli; Liao Lizi

  • 2018: Aleksandr Farseev; Chen Jingyuan

  • 2017: Geng Xue; Fu Jie

  • 2016: Bian Jingwen; Song Xuemeng; Akbari Mohammad

  • 2014: Zhao Yiliang;  Zhang Hanwang;  Lin Jovian;  Ghasem Heyrani Nobari

  • 2013: Chen Xiangyu;  Amiri Hadi;  Yuan Jin;  Nie Liqiang

  • 2012: Li Guangda;  Katti Harish;  Yu Jianxing

  • 2011: Wang Kai; Ming Zhaoyan

  • 2010: Zhang Yantao

  • 2009: Wang Gang

  • 2008: Xu Huaxin; Shi Rui; Maslennikov Mstislav; Neo Shiyong

  • 2007: Marchenko Yelizaveta

  • 2006: Cui Hang

  • 2005: Xiao Jing

  • 2004: Zhao Yunlong; Chaisorn Lekha; Feng Huamin

Invited presentations at scientific conferences/workshops (since 2008 only)


  • Keynote Talk: “Towards semantic Understanding of Videos: from Relation Inference to Causal Reasoning”. ChinaMM, Qingdao, Sep 2020.

  • Keynote Talk: “Challenges in Multimodal Conversational Search”. ACM SIGIR E-Commerce Workshop,
    Jul 2020.

  • Keynote Talk: “Towards Relation Inference and Causal Reasoning in Video”. Multimedia Modeling Conference (MMM), Daejeon, Korea, Jan 2020.


  • Keynote Talk: “AI x MM – Booster for the Fashion Industry”. Int’l Conf for AI on Fashion and Textile (AIFT), Shanghai, China, Nov 2019.

  • Keynote Talk: “Explainable AI & BigMM”. IEEE BigMM, Singapore, Sep 2019.

  • Keynote Talk: “Towards Explainability in AI and Multimedia Research”. ACM ICMR, Ottawa, Canada, June 2019.


  • Keynote Talk: “From Affective Analysis to Actionable Attributes”. ACM Multimedia Workshop on USAD (Understanding Subjective Attributes of Data), ACM Multimedia, Korea, Oct 2018.


  • Keynote Talk: “From Image to Video: the connection between Vision and language”. IEEE ICME, Hong Kong, Jul 2017


  • Keynote Talk: “Learning from Multiple Heterogeneous Social Networks”. ACM SIGIR Workshop on Heterogeneous Information Access, Pisa, Italy, Jul 2016.


  • Keynote Talk: “Multimedia Retrieval: Are We Doing it Right?” ACM ICMR (Int’l Conference on Multimedia Retrieval), Shanghai, China, Jun 2015.


  • Keynote Talk: “From Social Media Data to Actionable Analytics”. Workshop on SoMeRA’14 (International Workshop on Social Media Retrieval and Analysis), ACM SIGIR ‘2014, Australia, Jul 2014.


  • Keynote Speaker: “Managing large-scale social images as part of a live Social Media Observatory”. The 13th Pacific-Rim Conference on Multimedia (PCM2012), Singapore, Dec 2012.

  • Keynote Speaker: “Live Social Monitors: Learning the Social Pulses of a City from User-Generated Contents”. The 13th Int’l Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), Dublin, Ireland, May 2012.


  • Keynote Speaker: “Learning the Social Pulses of a City from User-Generated Contents”, Workshop on Social Behavioural Networked Media Access (SBNMA’11), in ACM Multimedia ‘2011, Arizona, USA, 28 Nov – 1 Dec 2011.

  • Keynote Speaker: “Extracting Structured Knowledge from User-Generated Information Resources”, Workshop on SWSM (Social Web Search and Mining, Analysis under Crisis), in ACM SIGIR ‘2011, Beijing, China, 24-28 July 2011.

  • Keynote Speaker: “Multimedia Question-Answering (MMQA)”, MMM ‘2011 (International Conference on Multimedia Modeling), Taipei, Taiwan, Jan 2011.


  • Keynote Speaker: “Extracting Knowledge form Community QA (cQA) Sites”, COLING Workshop (People’s Web Meets NLP), COLING’10 (23rdInternational Conference on Computational Linguistics 2010), Beijing, China, 23-28 August 2010.

  • Keynote Speaker: “Towards Web-Scale Media Content Analysis and Retrieval”, CIVR’2010 (International Conference on Image and Video Retrieval 2010), Xi’an, China, 5-7 July 2010.


  • Keynote Speaker: “Web-Scale Media Search: From Research Prototype to Commercial Applications”,  DICTA’2009 (Digital Image Computing: Techniques and Applications), Melbourne, 1-3 December 2009.

  • Keynote Speaker: “Visual Dictionary: Toward a Higher-level Visual Representation for Object Categorization”,  SIGFRA’09 (The Singaporean-French IPAL Symposium), Singapore, 18-20 February, 2009


  • Keynote Speaker: “A Unified MMM Model for Media Content Analysis and Retrieval”, MMM 2008 (International Conference on Multimedia Modeling). Kyoto, Japan, January 2008


Career History

  • 2009 – Present: KITHCT Chair Professor, School of Computing, NUS

  • 2003 – Present: Professor, School of Computing, NUS

  • 1998-2000: Acting Dean, School of Computing, NUS

  • 1996-1998: Acting Head, Dept of Information Systems & Computer Science, Faculty of Science, NUS

  • 1996-2003: Associate Professor, School of Computing, NUS

  • 1990-1996: Senior Lecturer, Dept of Info Systems & Computer Science, NUS

  • 1988-1990: Research Staff member, Institute of Systems Science (now I2R)

  • 1983-1988: Lecturer, Dept of Information Systems & Computer Science, NUS


Visiting Professorship

  • 2017-Present: Distinguished Visiting Professor (杰出访问教授), Tsinghua University, China.

  • 2021-Present: Pao Yu-Kong Chair Professor (包玉刚讲座教授), Zhejiang University, China.


  • ACM SIGMM Technical Achievement Award 2015 (for Outstanding Technical Contributions to Multimedia Computing, Communications, and Applications)

Associate Editors of Journals

  • IEEE Transactions of Multimedia (IEEE) – (2000-2004)

  • The Visual Computer (Springer-Verlag) – (1993-Present)

  • Multimedia Tools and Applications (Kluwer) – (1998 – Present)

  • ACM Transaction of Information Systems (ACM) – (2007 – Present)

  • Foundations and Trends in Information Retrieval (FTIR) – (2010 – 2017)


Steering Committee Members

  • Multimedia Modeling Conference (since 1993)

  • ACM International Conference on Multimedia Retrieval (ICMR) (as ICMR Chair from 2015-2018)

Conference General Co-Chairs

  • ACM Multimedia Asia 2020  Mar 2021 (Singapore)

  • IEEE Cloud Computing and Information Systems - Dec 2019 (Singapore)

  • ACM Web Science – Jun 2015 (Oxford, UK)

  • ACM SIGIR – Aug 2008 (Singapore)

  • ACM Multimedia - Nov 2005 (Singapore)

  • CIVR (Conference on Image & Video Retrieval) – Jul 2005 (Singapore)

  • Computer Graphics International (CGI) – 1990 (Singapore); 2000 (Switzerland); 2001 (Hong Kong);
    2003 (Japan)

  • Multi-Media Modeling (MMM)-- 1993 (Singapore); 1995 (Singapore); 1997 (Singapore); 2003 (Taiwan)

  • Pacific Graphic-- 1998 (Singapore)

Conference Technical Program Co-Chairs

  • ACM ICMR Co-Chair – Apr 2013 (USA)

  • ACM SIGIR PC Co-Chair – Aug 2011 (China)

  • CIVR (Conference on Image & Video Retrieval) – Jul 2009 (Greece)

  • Numerous others

Technical Program Committees and Area Chairs

  • Numerous conferences in computer graphics and multimedia areas, including ACM Multimedia, ACM SIGIR, ACL (Association of Computational Linguistics), EMNLP, WWW, Computer Graphics International (CGI), Computer Animation, Pacific Graphics, Multimedia Modeling (MMM), IEEE Int’l Conference on MM and Expo (ICME)

Member of Visiting Committee

  • Member of Review Panel: Program for “Interactive Multimodal Information Management”, under Swiss National “Centres of Competence in Research" (NCCR IM2), Switzerland (2006-2013)

  • Member of Industrial Advisory Board: European Network of Excellence Program – INTERMEDIA ( Europe (2007-2010)

Services in Singapore

  • Chair, The Public Sector R&D Projects Review Panel, SERC, ASTAR (2006- 2009)

  • Chair, Board of Assessor, Certified IT Project Management (CITPM), Singapore (2000 -2012)

  • Chair, Board of Assessor, Certification in Outsourcing Management for IT (COMIT), Singapore (2006-2006)


Co-Founder of Technology Start-Ups

  • ViSenze Pte Ltd

  • 6Estates Pte Ltd

bottom of page