Chao Huang
Assistant Professor
Department of Computer Science & Institute of Data Science
π§ chaohuang75@gmail.comΒ Β π Google Scholar Β Β π Lab Github Β π Β Open DataScience
I am an Assistant Professor at the Department of Computer Science and Musketeers Foundation Institute of Data Science, at the University of Hong Kong (HKU) . I am the director of Data Intelligence Lab@HKU, with the focus on Data Mining, Information Retrieval, Spatio-Temporal Data Mining, User Behavior Modeling, Recommender Systems, Graph Representation Learning, and Large Language Models. Prior to that, I received my Ph.D. in Computer Science from the University of Notre Dame in USA.
Prospective Students:
I am looking for self-motivated Ph.D. students/Research (Remote) Interns to work together on various data science topics.Β
If you are interested in working with me, please drop an email to chaohuang75@gmail.com. Please check Here for details.
Please include your CV (including your publications, ranking/GPA, anything important) with the email.
HKU Students: Please feel free to contact me if you would like to conduct research in my lab.
π¨βπ»β¨ Our Research Works are Open-Sourced β Explore Them on Our Lab GitHub RepositoryΒ π
Research Work Related to Large Language Models (LLMs)
[03/2024] - π£ Please check out our released Graph Foundation Model: πOpenGraphπ
π₯ OpenGraph Uncovers the Potential of the Graph Foundation Model
π₯ Zero-shot Graph Generalization Distilled from LLMs
[03/2024] - π£ Please check out our released Heterogenous Graph Language Models: π[KDD'2024] HiGPTπ
π₯ HiGPT One Model for Any Heterogeneous Graph
π₯ Cross-domain Zero-shot Heterogeneous Graph Learning
π₯ 1-shot Beat 60-shot with Graph In-Context Learning
[02/2024] - π£ Please check out our released Spatio-Temporal Large Language Models: π[KDD'2024] UrbanGPTπ
π₯ UrbanGPT empowers LLMs to comprehend the intricate inter-dependencies across time and space
π₯ We facilitate more comprehensive and accurate Spatio-Temporal Predictions under Data Scarcity
[02/2024] - π£ Please check out our released Large Language Models for Graph Structure Learning: πGraphEditπ
π₯ GraphEdit is a large language model to Effectively Denoises Noisy Connections
π₯ The proposed new framework identifies node-wise dependencies from a global perspective
[11/2023] - π£ Please check out our released Graph Large Language Model: π[SIGIR'2024] GraphGPTπ
π₯ GraphGPT framework aligns LLMs with Graph Structural Knowledge for graph learning
π₯ We integrate Text-Graph Grounding with Instruction Tuning to build Effective and Efficient LLM for Graphs
[11/2023] - π£ Please check out our released LLM-enhanced Recommender System: π[WSDM'2024] LLMRecπ
π₯ LLMRec: Simple yet Effective LLM-based Graph Augmentation strategies for recommendation
π₯ We enhance the understanding of user preference with the Incorporation of LLM-based Knowledge
[11/2023] - π£ Please check out our released Representation Learning Framework with LLMs: π[WWW'2024] RLMRecπΒ
π₯ RLMRec: Enhancing existing recommenders with Model-agnostic LLM-empowered Representation Learning
π₯ We integrate Representation Learning with LLMs to capture Intricate Semantic Aspects of User Behaviors
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Recent News HighlightsΒ Β
[04/2024] - π£ Please check out our Survey on Self-Supervised Learning for Recommendation
A Comprehensive Survey of Self-Supervised Learning (SSL) for Recommendation: Survey Paper
A Collection of Papers and Resources about SSL for Recommendation (Rec): Github Repo
[03/2024] - π£ Two papers are accepted by SIGIR'2024, Congratulations to Jiabin, Yuxi and Other Collaborators! ππ
Graph Fundation Model with LLMs (GraphGPT)
Self-Supervised Graph Neural Networks (SelfGNN)
[02/2024] - π£ Three papers are accepted by WWW'2024, Congratulations to Xubin, Yuhao, Wei and Other Collaborators! ππ
[02/2024] - π£ One paper is accepted by ICDE'2024, Congratulations to Qianru and Other Collaborators! ππ
Graph Augmentation for Recommendation (GraphAug)
[12/2023] - π£ Excited to share our latest video highlightingΒ our recent research investigations of πΊ Graph + LLMs! ππ¬
π₯ i) Topic 1: Towards Large Model for Graphs; ii) Topic 2: Large Languages Models for Sturctured Data in BioChem
π₯ iii) Topic 3: Graph Instruction Tuning for Large Language Models; iv) Topic 4: Enhancing Recommender Systems with Large Language Models
[10/2023] - π£ Please check out our SSLRec: A Self-Supervised Learning Framework for Recommendation
π₯ SSLRec covers various recommendation scenarios: i) General Collaborative Filtering; ii) Sequential Recommendation;Β
Β Β Β Β Β Β iii) Multi-Behavior Recommendation; iv) Social Recommendation; v) Knowledge Graph-enhanced Recommendation
π₯ SSLRec offers a vast array of utility functions and an easy-to-use interface that simplifies the development and evaluation of recommendation models.
[10/2023] - π£ Three papers are accepted by WSDM'2024, Congratulations to Wei, Xubin, Yangqin and Other Collaborators! ππ
Simple yet Effective LLM-enhanced Recommender Systems (LLMRec)
Self-Supervised Learning Framework for Recommendation (SSLRec)
Knowledge Graph Diffusion Model (DiffKG)
[09/2023] - π£ Two papers are accepted by NeurIPS'2023, Congratulations to Zhonghang, Xu and Other Collaborators! ππ
[08/2023] - π£ Three papers are accepted by CIKM'2023, Congratulations to Xuheng, Jiabin and Other Collaborators! ππ
Explainable Spatio-Temporal Graph Neural Networks (STExplainer)
Spatio-Temporal Meta Contrastive Learning (CL4ST)
Expressive Graph Neural Networks for Recommendation (GTE)
[07/2023] - π£ Our paper is accepted by Recsys'2023, Congratulations to Wei and Other Collaborators! ππ
Multi-Relational Contrastive Learning (RCL)
[05/2023] - π£ Our Works (HCCF and KGCL) are featured in π Most Influential Papers of SIGIR 2022 (Rank 2nd & 3rd), Congratulations to All Authors! ππ
[05/2023] - π£ Two papers are accepted by KDD'2023, Congratulations to Yuhao, Yangqin and Other Collaborators! ππ
[05/2023] - π£ Our Work (AutoCF) is featured as π Spotlight Paper of WWW'2023 (16/323), Congratulations to All Authors! ππ
[04/2023] - π£ Our paper is accepted by ICML'2023, Congratulations to Qianru and Other Collaborators! ππ
Spatio-Temporal Graph Pre-training (GraphST)
[04/2023] - π£ Three papers are accepted by SIGIR'2023, Congratulations to Xubin, Yaowen, Chaoliu and Other Collaborators!Β
[04/2023] - π£ One paper is accepted by IJCAI'2023, Congratulations to Tianle and Other Collaborators! ππ
Denoised Self-Augmented Learning (DSL)
[01/2023] - π£ Five papers are accepted by WWW'2023, Congratulations to Lianghao, Wei, Yuhao, Qianru and Other Collaborators! ππ
[01/2023] - π£ One paper is accepted by ICLR'2023, Congratulations to Xuheng and Other Collaborators! ππ
Simple yet Effective Graph Contrastive LearningΒ (LightGCL)
[01/2023] - π£ One paper is accepted by ICDE'2023, Congratulations to Lianghao and Other Collaborators! ππ
Disentangled Graph Neural NetworksΒ (DGNN)
[10/2022] - π£ One paper is accepted by WSDM'2023, Congratulations to Mengru and Other Collaborators! ππ
Heterogenous Graph Contrastive Learning Β (HGCL)
[05/2022] - π£ Three papers are accepted by KDD'2022, Congratulations to Lianghao, Yuhao and Other Collaborators! ππ
[04/2022] - π£ Two papers are accepted by SIGIR'2022, Congratulations to Lianghao, Yuhao and Other Collaborators! ππ
[11/2021] - π£ Our Research Work CML has been selected as π Best Paper Candidate of WSDM'2022, Congratulations to All Authors!
[10/2021] - π£ One paper is accepted by WSDM'2022, Congratulations to Wei and Other Collaborators! ππ
Contrastive Meta LearningΒ (CML)
Research Highlights:
(In chronological order, * indicates corresponding author, + indicates supervised student)
[SIGIR'2024] "GraphGPT: Graph Instruction Tuning for Large Language Models"
J. Tang+, Y. Yang, W. Wei, L. Shi, L. Su, S. Cheng, D. Yin and C. Huang*
π (Top-2 Most Cited Paper: 2 / 159 Accepted Papers) π
[WWW'2024] "RLMRec: Representation Learning with Large Language Models for Recommendation"
X. Ren+, W. Wei, L. Xia, L. Su, S. Cheng, J. Wang, D. Yin and C. Huang*
π (Top-1 Most Cited Paper: 1 / 405 Accepted Papers) π
[WSDM'2024] "LLMRec: Large Language Models with Graph Augmentation for Recommendation"
W. Wei+, X. Ren, J. Tang, Q. Wang, L. Su, S. Cheng, J. Wang, D. Yin and C. Huang*
π (Top-1 Most Cited Paper: 1 / 112 Accepted Papers) π
[WWW'2023] "Automated Self-Supervised Learning for Recommendation"
L. Xia+, C. Huang*, C. Huang, K. Lin, T. Yu and B. Kao
π (Spotlight Paper & Best Paper Nomination: 16/323 Accepted Papers) π
[WWW'2023] "Multi-Modal Self-Supervised Learning for Recommendation"
W. Wei+, C. Huang*, L. Xia and C. Zhang
π (Most Influential Papers of WWW'2023 - Rank 2nd /323 Accepted Papers) π
[WWW'2023] "Debiased Contrastive Learning for Sequential Recommendation"
Y. Yang+, C. Huang*, L. Xia, C. Huang, D. Luo and K. Li
π (Most Influential Papers of WWW'2023 - Rank 4th /323 Accepted Papers) π
[SIGIR'2023] "Disentangled Contrastive Collaborative Filtering"
X. Ren+, L. Xia, J. Zhao, D. Yin and C. Huang*
π (Most Influential Papers of SIGIR'2023 - Rank 12th / 165 Accepted Papers) π
[ICLR'2023] "LightGCL: Simple Yet Effective Graph Contrastive Learning for Recommendation"
X. Cai+, C. Huang*, L. Xia and X. Ren
π (Selected as Spotlight Paper: 25%) π
[WSDM'2023] "Heterogeneous Graph Contrastive Learning for Recommendation"
M. Chen+, C. Huang*, L. Xia, Β W. Wei, Y. Xu and R. Luo
π (Top-2 Most Cited Paper: 2 / 123 Accepted Papers) π
[SIGIR'2022] "Hypergraph Contrastive Collaborative Filtering"
L. Xia+, C. Huang*, Y. Xu, J. Zhao, D. Yin and J. Huang
ACM Special Interest Group on Information Retrieval
π (Most Influential Papers of SIGIR'2022 - Rank 2nd / 161 Accepted Papers) π
[SIGIR'2022] "Knowledge Graph Contrastive Learning for Recommendation"
Y. Yang+, C. Huang*, L. Xia and C. Li
ACM Special Interest Group on Information Retrieval
π (Most Influential Papers of SIGIR'2022 - Rank 3rd / 161 Accepted Papers) π
[WSDM'2022] "Contrastive Meta Learning with Behavior Multiplicity for Recommendation"
W. Wei+, C. Huang*, L. Xia,Β Y. Xu, J. Zhao and D. Yin
ACM International Conference on Web Search and Data Mining
π (Best Paper Nomination & Top-3 Most Cited Paper 3 / 159 Accepted Papers) π
[SIGIR'2021] "Graph Meta Network for Multi-Behavior Recommendation"Β
L. Xia+, Y. Xu, C. Huang*, P. Dai and L. Bo
π (Most Influential Papers of SIGIR'2021 - Rank 14th / 151 Accepted Papers) π
[WWW'2019] "Mist: A Multiview and Multimodal Spatial-Temporal Learning Framework for Citywide Abnormal Event Forecasting"Β
C. Huang*, C. Zhang, J. Zhao, X. Wu, D. Yin and N. Chawla
π (Best Paper Nomination) π
[pdf] [code]
[KDD'2019] "Heterogeneous Graph Neural Network"Β
C. Zhang, D. Song, C. Huang, A. Swami, N. Chawla
π (Most Influential Papers of KDD'2019 - Rank 3rd / 174 Accepted Papers) π
Honors & Awards:
π Worldβs Top 2% Scientists 2023 published by Stanford University
π Worldβs Top 2% Scientists 2022 published by Stanford University
π WWW 2023 Most Influential Papers (Rank 2nd / 323 Accepted Papers)
π WWW 2023 Most Influential Papers (Rank 4th / 323 Accepted Papers)
π SIGIR 2023 Most Influential Papers (Rank 12th / 165 Accepted Papers)
π SIGIR 2022 Most Influential Papers (Rank 2nd / 161 Accepted Papers)Β
π SIGIR 2022 Most Influential Papers (Rank 3rd / 161 Accepted Papers)
π SIGIR 2021 Most Influential Papers (Rank 14th / 151 Accepted Papers)
π KDD 2019 Most Influential Papers (Rank 3rd / 174 Accepted Papers)
π WWW 2024 Top-1 Most Cited Paper (Rank 1st / 405 Accepted Papers)
π SIGIR 2024 Top-2 Most Cited Paper (Rank 2nd / 159 Accepted Papers)
π WSDM 2024 Top-1 Most Cited Paper (Rank 1st / 112 Accepted Papers)
π WWW 2023 Best Paper Candidate
π WSDM 2022 Best Paper Candidate
π WWW 2019 Best Paper CandidateΒ
π WSDM 2022 Outstanding PC award
π WSDM 2020 Outstanding PC award
π Frontiers of Science Award from ICBS 2024