| Aug 29, 2025 | We propose MMSearch-Plus — a challenging MLLM agent benchmark that requires high-level multimodal understanding and tool-use capability through iterative image-text retrieval and cross-validation under retrieval noise. Released benchmark dataset is available here. |
| Jul 14, 2025 | We propose Guided Hybrid Policy Optimization (GHPO) — a difficulty-aware RLVR framework that improves training stability and reasoning performance in LLMs, achieving strong gains on challenging math benchmarks. Code is available here. |
| Oct 28, 2024 | I have joined Huawei HKRC in Hong Kong as a full-time research engineer. |
| May 21, 2024 | Happy to announce that I have passed my PhD oral defense! |
| May 17, 2024 | One paper accepted by KDD 2024: Geometric View of Soft Decorrelation in Self-Supervised Learning. Congratulations to Yifei! |
| Apr 24, 2024 | Another survey paper accepted by ACM TIST: A Survey of Trustworthy Federated Learning: Issues, Solutions, and Challenges. Congratulations to Yifei! |
| Apr 20, 2024 | One survey paper accepted by IJCAI 2024: A Systematic Survey on Federated Semi-supervised Learning. Congratulations to Zixing! |
| Nov 14, 2023 | One paper accepted by Neural Networks: MECCH: Metapath Context Convolution-based Heterogeneous Graph Neural Networks |
| Jun 18, 2023 | Our tutorial Trustworthy Federated Learning: Concepts, Methods, Applications, and Beyond was presented at IJCNN 2023 |
| Apr 20, 2023 | One paper accepted by IJCAI 2023: FedHGN: A Federated Framework for Heterogeneous Graph Neural Networks |
| Apr 04, 2023 | Served as a reviewer in the WWW 2023 “Artifacts Available” review committee |
| Jan 14, 2023 | Fellow students from our MISC Lab presented our recent research on LOGS |
| Jul 28, 2022 | Our tutorial Deep Learning on Graphs was presented at DeepLearn 2022 Summer |
| Nov 22, 2020 | Our tutorial Deep Learning on Graphs: Methods and Applications was presented at ICONIP 2020 |
| Jan 11, 2020 | One paper accepted by WWW 2020: MAGNN: Metapath Aggregated Graph Neural Network for Heterogeneous Graph Embedding |