All Stories

  1. Explainable Anomaly Detection in Dynamic Heterogeneous Graphs via Relation Evolution

    Article • IEEE Transactions on Knowledge and Data Engineering, May 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  2. Mamba Hawkes Process for Event Sequence Modeling

    Article • April 2026, ACM (Association for Computing Machinery)

    Shan Dai, Yuyang Shen, Chenhao Ma

  3. Scalable Privacy-Preserving Shortest Path Distance Computation via 2-Hop Labeling in MPC

    Article • Proceedings of the ACM on Management of Data, April 2026, ACM (Association for Computing Machinery)

    Wei Dong, Chenhao Ma

  4. Corrigendum: Attribute Filtering in Approximate Nearest Neighbor Search: An In-depth Experimental Study: [Experiments & Analysis]

    Article • Proceedings of the ACM on Management of Data, April 2026, ACM (Association for Computing Machinery)

    Chenhao Ma

  5. Finding Locally Densest Subgraphs: Convex Programming with Edge and Triangle Density

    Article • The VLDB Journal, January 2026, Springer Science + Business Media

    Chenhao Ma

  6. Attribute Filtering in Approximate Nearest Neighbor Search: An In-depth Experimental Study

    Article • Proceedings of the ACM on Management of Data, December 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  7. STORM: Spatio-Temporal Similar Trajectory Retrieval on Non-Uniform Maritime Data

    Article • November 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  8. TempASD: Temporal Anomalous Subgraph Discovery in Large-Scale Dynamic Financial Networks

    Article • August 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  9. UnG-MoCha: Neural Motif Counting in Uncertain Graphs

    Article • August 2025, ACM (Association for Computing Machinery)

    Lujie Ban, Chenhao Ma

  10. MoDiff - Graph Generation with Motif-aware Diffusion Model

    Article • August 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  11. UTCS: Effective Unsupervised Temporal Community Search with Pre-training of Temporal Dynamics and Subgraph Knowledge

    Article • July 2025, ACM (Association for Computing Machinery)

    Yankai Chen, Chenhao Ma

  12. SemExplorer: A User Interface for Semantic Approach to Customized Dataset Search

    Article • June 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  13. Accelerating Skyline Path Enumeration with a Core Attribute Index on Multi-attribute Graphs

    Article • Proceedings of the ACM on Management of Data, June 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  14. Similarity and Diversity: PCA-Based Contribution Evaluation in Federated Learning

    Article • IEEE Internet of Things Journal, June 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  15. Efficient Structural Clustering Over Hypergraphs

    Article • May 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  16. ReadGraph: Relational Evolution Enhanced Anomaly Detection in Dynamic Heterogeneous Graph

    Article • May 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  17. CSPO: Cross-Market Synergistic Stock Price Movement Forecasting with Pseudo-volatility Optimization

    Article • May 2025, ACM (Association for Computing Machinery)

    Sida LIN, Yankai Chen, Chenhao Ma

  18. TRACE: Intra-visit Clinical Event Nowcasting via Effective Patient Trajectory Encoding

    Article • May 2025, ACM (Association for Computing Machinery)

    Laks Lakshmanan, V.S., Yankai Chen, Chenhao Ma

  19. Hypergraph-Enhanced Multi-Granularity Stochastic Weight Completion in Sparse Road Networks

    Article • ACM Transactions on Knowledge Discovery from Data, April 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  20. Reproducibility Report for ACM SIGMOD 2024 Paper: 'Temporal JSON Keyword Search'

    Article • March 2025, ACM (Association for Computing Machinery)

    Chenhao Ma, Curtis Dyreson

  21. Efficient Maintenance of 2-Hop Labeling Index on Dynamic Small-World Graphs

    Article • Proceedings of the VLDB Endowment, March 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  22. Efficient Historical Butterfly Counting in Large Temporal Bipartite Networks via Graph Structure-Aware Index

    Article • Proceedings of the VLDB Endowment, February 2025, ACM (Association for Computing Machinery)

    Chenhao Ma

  23. Towards Effective Top-N Hamming Search via Bipartite Graph Contrastive Hashing

    Article • IEEE Transactions on Knowledge and Data Engineering, December 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  24. In-Depth Analysis of Densest Subgraph Discovery in a Unified Framework

    Article • Proceedings of the VLDB Endowment, December 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  25. FDM: Effective and efficient incident detection on sparse trajectory data

    Article • Information Systems, November 2024, Elsevier

    Chenhao Ma

  26. Machine learning model improves job mobility predictions by studying market connections

    Article • October 2024, ACM (Association for Computing Machinery)

    Sida LIN, Yankai Chen, Shan Dai, Chenhao Ma

  27. Scalable Algorithm for Finding Balanced Subgraphs with Tolerance in Signed Networks

    Article • August 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  28. Efficient Maximal Motif-Clique Enumeration over Large Heterogeneous Information Networks

    Article • Proceedings of the VLDB Endowment, July 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  29. Distributed Shortest Distance Labeling on Large-Scale Graphs

    Article • Proceedings of the VLDB Endowment, June 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  30. On Efficient Large Sparse Matrix Chain Multiplication

    Article • Proceedings of the ACM on Management of Data, May 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  31. A Counting-based Approach for Efficient k-Clique Densest Subgraph Discovery

    Article • Proceedings of the ACM on Management of Data, May 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  32. A Similarity-based Approach for Efficient Large Quasi-clique Detection

    Article • May 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  33. Efficient Core Decomposition Over Large Heterogeneous Information Networks

    Article • May 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  34. Efficient and effective algorithms for densest subgraph discovery and maintenance

    Article • The VLDB Journal, May 2024, Springer Science + Business Media

    Chenhao Ma

  35. Influential Exemplar Replay for Incremental Learning in Recommender Systems

    Article • Proceedings of the AAAI Conference on Artificial Intelligence, March 2024, Association for the Advancement of Artificial Intelligence (AAAI)

    Chenhao Ma

  36. Efficient Distributed Hop-Constrained Path Enumeration on Large-Scale Graphs

    Article • Proceedings of the ACM on Management of Data, March 2024, ACM (Association for Computing Machinery)

    Chenhao Ma

  37. Before Generation, Align it! A Novel and Effective Strategy for Mitigating Hallucinations in Text-to-SQL Generation

    Article • January 2024, Association for Computational Linguistics (ACL)

    Chenhao Ma

  38. TRoute: Dynamic Time-Dependent Route Recommendation on Road Networks

    Article • January 2024, Springer Science + Business Media

    Chenhao Ma

  39. MOSER: Scalable Network Motif Discovery Using Serial Test

    Article • Proceedings of the VLDB Endowment, November 2023, ACM (Association for Computing Machinery)

    Chenhao Ma

  40. Accelerating directed densest subgraph queries with software and hardware approaches

    Article • The VLDB Journal, July 2023, Springer Science + Business Media

    Chenhao Ma

  41. Efficient and Effective Algorithms for Generalized Densest Subgraph Discovery

    Article • Proceedings of the ACM on Management of Data, June 2023, ACM (Association for Computing Machinery)

    Chenhao Ma

  42. On Querying Connected Components in Large Temporal Graphs

    Article • Proceedings of the ACM on Management of Data, June 2023, ACM (Association for Computing Machinery)

    Chenhao Ma

  43. Scalable Algorithms for Densest Subgraph Discovery

    Article • April 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Chenhao Ma

  44. Fdm: Effective and Efficient Incident Detection on Sparse Trajectory Data

    Article • January 2023, Elsevier

    Chenhao Ma

  45. Densest subgraph discovery on large graphs

    Article • Proceedings of the VLDB Endowment, August 2022, ACM (Association for Computing Machinery)

    Chenhao Ma

  46. Towards Passive, Migration-Free, Standardized, Long-Term Database Archival

    Article • ACM SIGMOD Record, July 2022, ACM (Association for Computing Machinery)

    Chenhao Ma

  47. Effective community search over large star-schema heterogeneous information networks

    Article • Proceedings of the VLDB Endowment, July 2022, ACM (Association for Computing Machinery)

    Chenhao Ma

  48. Finding locally densest subgraphs

    Article • Proceedings of the VLDB Endowment, July 2022, ACM (Association for Computing Machinery)

    Chenhao Ma

  49. A Convex-Programming Approach for Efficient Directed Densest Subgraph Discovery

    Article • June 2022, ACM (Association for Computing Machinery)

    Chenhao Ma, Laks Lakshmanan, V.S.

  50. DeepTEA

    Article • Proceedings of the VLDB Endowment, March 2022, ACM (Association for Computing Machinery)

    Chenhao Ma

  51. On Directed Densest Subgraph Discovery

    Article • ACM Transactions on Database Systems, December 2021, ACM (Association for Computing Machinery)

    Chenhao Ma, Laks Lakshmanan, V.S.

  52. Efficient Directed Densest Subgraph Discovery

    Article • ACM SIGMOD Record, June 2021, ACM (Association for Computing Machinery)

    Chenhao Ma, Laks Lakshmanan, V.S.

  53. On analyzing graphs with motif-paths

    Article • Proceedings of the VLDB Endowment, February 2021, ACM (Association for Computing Machinery)

    Chenhao Ma

  54. Efficient Algorithms for Densest Subgraph Discovery on Large Directed Graphs

    Article • May 2020, ACM (Association for Computing Machinery)

    Laks Lakshmanan, V.S., Chenhao Ma

  55. LINC

    Article • Proceedings of the VLDB Endowment, October 2019, ACM (Association for Computing Machinery)

    Chenhao Ma