SimRN: Trajectory Similarity Learning in Road Networks based on Distributed Deep Reinforcement Learning
Summary: SimRN, the first DRL-based trajectory-similarity framework for road networks, integrates spatio-temporal prompt extraction, DRL-based trajectory representation with automatic parameter selection and parallel training, plus graph contrastive learning. Yields 20–40% accuracy gains, 2–4× speedups, and strong generalization on tiny training sets via self-supervised contrastive sampling that preserves spatial and temporal constraints. (summarized by gpt-5-mini on Feb 09 2026)
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Authors
- 1. Danlei Hu (Zhejiang University)
- 2. Yilin Li (Zhejiang University)
- 3. Lu Chen (Zhejiang University)
- 4. Ziquan Fang (Zhejiang University)
- 5. Yushuai Li (Aalborg University)
- 6. Yunjun Gao (Zhejiang University)
- 7. Tianyi Li (Aalborg University)
BibTeX Citation
@article{hu_vldb25,
title = {{SimRN: Trajectory Similarity Learning in Road Networks based on Distributed Deep Reinforcement Learning}},
author = {Hu, Danlei and Li, Yilin and Chen, Lu and Fang, Ziquan and Li, Yushuai and Gao, Yunjun and Li, Tianyi},
journal = {PVLDB},
series = {{VLDB} '25},
volume = {18},
number = {7},
pages = {2057--2069},
doi = {10.14778/3734839.3734844},
url = {https://doi.org/10.14778/3734839.3734844},
year = {2025}
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Outgoing Citations (Sorted by Pagerank)
Showing 10 of 10 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 221 | Robust and Fast Similarity Search for Moving Object Trajectories | 2005 | SIGMOD | 0.00024224879 |
| 303 | On The Marriage of Lp-norms and Edit Distance | 2004 | VLDB | 0.00021956234 |
| 898 | Querying and Mining of Time Series Data: Experimental Comparison of Representations and Distance Measures | 2008 | VLDB | 0.00013339042 |
| 1,193 | On Map-Matching Vehicle Tracking Data | 2005 | VLDB | 0.00011730808 |
| 2,046 | Distributed Trajectory Similarity Search | 2017 | VLDB | 9.260657e-05 |
| 2,416 | DITA: Distributed In-Memory Trajectory Analytics | 2018 | SIGMOD | 8.6068712e-05 |
| 4,956 | Heterogeneity-Aware Distributed Machine Learning Training via Partial Reduce | 2021 | SIGMOD | 6.4290135e-05 |
| 5,071 | Fast Subtrajectory Similarity Search in Road Networks under Weighted Edit Distance Constraints | 2020 | VLDB | 6.3761034e-05 |
| 6,285 | Trajectory Similarity Join in Spatial Networks | 2017 | VLDB | 5.9270112e-05 |
| 9,199 | On Repairing Timestamps for Regular Interval Time Series | 2022 | VLDB | 5.3058708e-05 |