Projects per year
Personal profile
Chinese Name
Biography
Professor Li Chen is currently a Full Professor and Associate Head (Research) in the Department of Computer Science at Hong Kong Baptist University (HKBU). She obtained her PhD degree in Computer Science from the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland, and her Bachelor's and Master's degrees from Peking University, China. Her recent research focus has mainly been on conversational AI, explainable AI, recommender systems, and human-computer interaction. She has authored and co-authored over 160 publications, with over 13,000 citations (H-index 53). Her co-authored papers have received several awards, such as the RecSys’24 Best Student Paper Award, CHI’22 Honourable Mention Award, UMAP’20 Best Student Paper Award, UMUAI 2018 Best Paper Award, and UMAP’15 Best Student Paper Award. She received the President’s Award for Outstanding Performance in Teaching (Individual) 2024/25 and the President’s Award for Outstanding Performance in Research Supervision 2022/23. She has been included in the list of the world’s top 2% most-cited scientists by Stanford University since 2021, and the list of the Best Computer Science Scientists 2025/2026 by Research.com. She is now an ACM senior member, founding co-editor-in-chief of ACM Transactions on Recommender Systems (TORS), steering committee member of ACM Conference on Recommender Systems (RecSys), associate editor of International Journal of Human-Computer Studies (IJHCS), editorial board member of User Modeling and User-Adapted Interaction Journal (UMUAI), and associate editor of ACM Transactions on Interactive Intelligent Systems (TiiS). She has also served as program co-chair of IUI’26, general co-chair of ACM RecSys’23, program co-chair of ACM RecSys’20, and program co-chair of ACM UMAP’18.
Research Interests
Conversational AI, Explainable AI, Recommender Systems, Human-Computer Interaction
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Collaborations and top research areas from the last five years
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A randomised controlled trial of a sensor-aided ecological momentary intervention for emotion regulation and mental health (EMI-ER) in parents of children with special educational needs
ZHUANG, X. (PI), WONG, D. F. K. (CoI), PAN, J. (CoI), CHEN, L. (CoI) & CHAN, C. P. (CoI)
1/09/25 → 31/08/27
Project: Research project
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Research on Key Technology for Modeling Cross-Domain Sequential Behaviors in Recommender Systems
CHEN, L. (PI), LI, L. (CoI), Pan, W. (PI) & Liu, D. (CoI)
1/01/25 → 31/12/28
Project: Research project
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Enhancing Conversational Recommender Systems: Adaptive Multimodal Preference Elicitation Powered by MLLMs
CHEN, L. (PI)
1/01/27 → 31/12/28
Project: Research project
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Automated assessment of speech difficulty: Application of automatic speech recognition technology
CHEN, L. (PI), LIU, M.-H. (CoI) & LIU, N. (CoI)
1/07/23 → 31/12/25
Project: Research project
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Future Cinema Systems: Next-Generation Art Technologies
SHAW, J. (PI), LIU, J. (CoPI), ALONSO TRILLO, R. (CoI), NELSON, P. (CoI), ZHOU, C. (CoI), CHEN, L. (CoI), WAN, R. (CoI), LIU, Y. (CoI) & Guo, Y. (CoI)
1/11/22 → 31/10/24
Project: Research project
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A cross-domain study on the user experience of ChatGPT-based recommendations
Zhang, Y., Jin, Y., Chen, L. & Yang, T., Mar 2026, In: International Journal of Human Computer Studies. 210, 18 p., 103743.Research output: Contribution to journal › Journal article › peer-review
2 Citations (Scopus) -
Improving Methodological Standards in Recommender Systems Offline Evaluation
Jannach, D. & Chen, L., Sept 2026, In: ACM Transactions on Recommender Systems. 4, 3, 15 p., 34e.Research output: Contribution to journal › Editorial
Open Access -
Investigating User-Side Fairness in Outcome and Process for Multi-Type Sensitive Attributes in Recommendations
Chen, W., Chen, L. & Zhao, Y., Jun 2026, In: ACM Transactions on Recommender Systems. 4, 2, p. 1-29 29 p., 25.Research output: Contribution to journal › Journal article › peer-review
Open Access -
Matryoshka Representation Learning for Recommendation with Layer- and Hardness-Adaptive Negative Sampling
Lai, R., Chen, L., Chen, W. & Chen, R., Aug 2026, In: ACM Transactions on Intelligent Systems and Technology. 17, 4, p. 1-25 25 p., 88.Research output: Contribution to journal › Journal article › peer-review
Open Access -
Post-Training Fairness Control: A Single-Train Framework for Dynamic Fairness in Recommendation
Chen, W., Chen, L. & Zhao, Y., Jun 2026, WWW Companion 2026 - Companion Proceedings of the ACM Web Conference 2026. New York, NY, USA: Association for Computing Machinery (ACM), p. 640–649 10 p. (WWW Companion - Companion Proceedings of the ACM Web Conference).Research output: Chapter in book/report/conference proceeding › Conference proceeding › peer-review
Open Access1 Citation (Scopus)
Prizes
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Best Student Paper Award
ZHAO, Y. (Recipient), Chen, R. (Recipient), Han, Q. (Recipient), Song, H. (Recipient) & CHEN, L. (Recipient), 16 Oct 2024
Prize: Award
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Best Student Paper Award for paper "Multiple Neighbor Relation Enhanced Graph Collaborative Filtering" at WI-IAT’22
Lai, R. (Recipient), Xiao, S. (Recipient), Chen, R. (Recipient), CHEN, L. (Recipient), Han, Q. (Recipient) & Li, L. (Recipient), 20 Nov 2022
Prize: Award
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Honorable Mention Award for paper “Impacts of Personal Characteristics on User Trust in Conversational Recommender Systems”
CAI, W. (Recipient), JIN, Y. (Recipient) & CHEN, L. (Recipient), 29 Jun 2022
Prize: Award
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President's Award for Outstanding Performance in Research Supervision
CHEN, L. (Recipient), 3 May 2023
Prize: Award
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The Best Paper Award from the 2021 International Workshop on Mobile Ubiquitous Systems and Technologies
PENG, Z. (Recipient), HUANG, J. (Recipient), WANG, H. (Recipient), WANG, S. (Recipient), CHU, X. (Recipient), ZHANG, X. (Recipient), CHEN, L. (Recipient), HUANG, X. (Recipient), FU, X. (Recipient), GUO, Y.-K. (Recipient) & XU, J. (Recipient), 11 Apr 2021
Prize
Activities
- 5 Editor/reviewer for publications (incl. CDCF T61 Journal Editor)
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International Journal of Human Computer Studies (Journal)
CHEN, L. (Associate editor)
Oct 2025 → …Activity: Publication peer-review/editorial work › Editor/reviewer for publications (incl. CDCF T61 Journal Editor)
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Frontiers in Big Data (Journal)
CHEN, L. (Member of editorial board)
2021 → …Activity: Publication peer-review/editorial work › Editor/reviewer for publications (incl. CDCF T61 Journal Editor)
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ACM Transactions on Recommender Systems (Journal)
CHEN, L. (Editor in chief)
Sept 2021 → …Activity: Publication peer-review/editorial work › Editor/reviewer for publications (incl. CDCF T61 Journal Editor)
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ACM Transactions on Interactive Intelligent Systems (Journal)
CHEN, L. (Associate editor)
2019 → …Activity: Publication peer-review/editorial work › Editor/reviewer for publications (incl. CDCF T61 Journal Editor)
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Journal of Intelligent Information Systems (Journal)
CHEN, L. (Member of editorial board)
2019 → 2022Activity: Publication peer-review/editorial work › Editor/reviewer for publications (incl. CDCF T61 Journal Editor)