PPQ-Trajectory: Spatio-temporal Quantization for Querying in Large Trajectory Repositories
Summary: PPQ-trajectory introduces spatio-temporal quantization for querying large dynamic trajectories. Partition-wise predictive quantizer yields an error-bounded codebook with autocorrelation and spatial partitions, enabling approximate and exact queries; quadtrees and incremental temporal indexing allow fast, reconstruction-free querying on compressed trajectories, with experiments showing improved accuracy and compression. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
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Incoming Citations (Sorted by Pagerank)
Showing 3 of 3 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 7,348 | Public Transport Planning: When Transit Network Connectivity Meets Commuting Demand | 2021 | SIGMOD | 4.7554541e-05 |
| 8,157 | TOD: GPU-accelerated Outlier Detection via Tensor Operations | 2023 | VLDB | 4.5730908e-05 |
| 10,980 | BT-Tree: A Reinforcement Learning Based Index for Big Trajectory Data | 2024 | SIGMOD | 4.1945683e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 4 of 4 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 79 | A Quantitative Analysis and Performance Study for Similarity-Search Methods in High-Dimensional Spaces | 1998 | VLDB | 0.00056242144 |
| 1,363 | Indexing Spatio-Temporal Trajectories with Chebyshev Polynomials | 2004 | SIGMOD | 0.00012372959 |
| 2,534 | STRIPES: An Efficient Index for Predicted Trajectories | 2004 | SIGMOD | 8.5890923e-05 |
| 3,395 | PRESS: A Novel Framework of Trajectory Compression in Road Networks | 2014 | VLDB | 7.1480157e-05 |
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