All Stories

  1. 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

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

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

    Chenhao Ma

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

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

    Chenhao Ma

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

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

    Lujie Ban, Chenhao Ma

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

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

    Chenhao Ma

  6. 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

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

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

    Chenhao Ma

  8. 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

  9. 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

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

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

    Chenhao Ma

  11. 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

  12. 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

  13. 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

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

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

    Chenhao Ma, Curtis Dyreson

  15. 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

  16. 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

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

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

    Chenhao Ma

  18. 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

  19. 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

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

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

    Chenhao Ma

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

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

    Chenhao Ma

  22. 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

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

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

    Chenhao Ma

  24. 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

  25. 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

  26. Scalable Algorithms for Densest Subgraph Discovery

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

    Chenhao Ma

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

    Article • January 2023, Elsevier

    Chenhao Ma

  28. Densest subgraph discovery on large graphs

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

    Chenhao Ma

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

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

    Chenhao Ma

  30. 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

  31. Finding locally densest subgraphs

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

    Chenhao Ma

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

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

    Chenhao Ma, Laks Lakshmanan, V.S.

  33. DeepTEA

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

    Chenhao Ma

  34. On Directed Densest Subgraph Discovery

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

    Chenhao Ma, Laks Lakshmanan, V.S.

  35. Efficient Directed Densest Subgraph Discovery

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

    Chenhao Ma, Laks Lakshmanan, V.S.

  36. On analyzing graphs with motif-paths

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

    Chenhao Ma

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

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

    Laks Lakshmanan, V.S., Chenhao Ma

  38. LINC

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

    Chenhao Ma