publications

Preprints

  1. Under Review: Tenindra Abeywickrama, Muhammad Aamir Cheema, and Sabine Storandt.
    COL-Trees: Efficient Hierarchical Object Search in Road Networks.
    Submitted to Artificial Intelligence (Invited Award Paper Track). [Code] [Paper]

Refereed Conferences and Journals

  1. SIGMOD Record 2022: Tenindra Abeywickrama, Victor Liang, and Kian-Lee Tan.
    Bipartite Matching: What to do in the Real World When Computing Assignment Costs Dominates Finding the Optimal Assignment.
    SIGMOD Record, 51(1):51–58. SIGMOD Research Highlight Award [Paper]

  2. IEEE MDM 2022 (Short Paper): Keru Chen, Wentong Li, Michael Chirico, and Tenindra Abeywickrama.
    Effectively Relocating Ride-Hailing Drivers Using A Markov Decision Process with Dynamic Sharding.
    Proc. of the 23rd IEEE International Conference on Mobile Data Management

  3. VLDB 2021: Tenindra Abeywickrama, Victor Liang, and Kian-Lee Tan.
    Optimizing Bipartite Matching in Real-World Applications by Incremental Cost Computation.
    Proc. of the VLDB Endowment Vol 14. Best Scalable Data Science Paper Award [Paper]

  4. IJCAI 2021 (Extended Abstract): Tenindra Abeywickrama, Muhammad Aamir Cheema, and Sabine Storandt.
    Hierarchical Graph Traversal for Aggregate k Nearest Neighbors Search in Road Networks (Extended Abstract).
    Proc. of the 30th International Joint Conference on Artificial Intelligence. Invited Paper - Best Papers from Sister Conferences

  5. ICAPS 2020: Tenindra Abeywickrama, Muhammad Aamir Cheema, and Sabine Storandt.
    Hierarchical Graph Traversal for Aggregate k Nearest Neighbors Search in Road Networks.
    Proc. of the 30th International Conference on Automated Planning and Scheduling. Best Paper Award [Paper]

  6. ICDE 2020 (Extended Abstract): Tenindra Abeywickrama, Muhammad Aamir Cheema, and Arijit Khan. 2020.
    K-SPIN: Efficiently Processing Spatial Keyword Queries on Road Networks (Extended Abstract).
    Proc. of the 36th IEEE International Conference on Data Engineering

  7. TKDE 2020: Tenindra Abeywickrama, Muhammad Aamir Cheema, and Arijit Khan
    K-SPIN: Efficiently Processing Spatial Keyword Queries on Road Networks.
    IEEE Transactions on Knowledge and Data Engineering, 32(5):983–997 [Paper]

  8. SOCS 2018 (Extended Abstract): Tenindra Abeywickrama, Muhammad Aamir Cheema, and David Taniar.
    k-Nearest Neighbors on Road Networks: Euclidean Heuristic Revisited.
    Proc. of the 11th Annual Symposium on Combinatorial Search

  9. DASFAA 2017: Tenindra Abeywickrama and Muhammad Aamir Cheema.
    Efficient Landmark-Based Candidate Generation for kNN Queries on Road Networks.
    Proc. of the 22nd International Conference on Database Systems for Advanced Applications [Paper]

  10. VLDB 2016: Tenindra Abeywickrama, Muhammad Aamir Cheema, and David Taniar.
    K-Nearest Neighbors on Road Networks: A Journey in Experimentation and In-Memory Implementation.
    Proc. of the VLDB Endowment Vol 9. [Code] [Paper] [Extended Version]

Patents

  1. Tenindra Nadeeshan Abeywickrama, Chen Liang.
    System and method for bipartite matching.
    US Patent No. US12260357B2, Granted Mar. 2025

  2. Chunda Ding, Xiaocheng Huang, Minbo Qiu, Tenindra Nadeeshan Abeywickrama, Chen Liang.
    Method of annotating map data for navigation of vehicles.
    US Patent App. 18/561,112, Pending (Published Nov. 2024)

Articles

  1. Tenindra Abeywickrama and Victor Liang. "Using real-world patterns to improve matching in theory and practice" in Grab Tech Blog (Nov 2021) [Link]