Trajectory Simplification: On Minimizing the Direction-based Error
Summary: Defines Min-Error for direction-preserving trajectory simplification (DPTS) under a fixed output size, removing reliance on user-specified tolerances by directly minimizing error. Proposes two exact algorithms and a 2-approximation algorithm; experiments on real datasets validate efficiency and accuracy. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Cheng Long (Hong Kong University of Science and Technology)
- 2. Raymond Chi-Wing Wong (Hong Kong University of Science and Technology)
- 3. H. V. Jagadish (University of Michigan)
BibTeX Citation
@article{long_vldb15,
title = {{Trajectory Simplification: On Minimizing the Direction-based Error}},
author = {Long, Cheng and Wong, Raymond Chi-Wing and Jagadish, H. V.},
journal = {PVLDB},
series = {{VLDB} '15},
volume = {8},
number = {1},
doi = {10.14778/2735461.2735466},
url = {https://doi.org/10.14778/2735461.2735466},
year = {2015}
}Incoming Citations (Sorted by Pagerank)
Showing 9 of 9 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 2,046 | Distributed Trajectory Similarity Search | 2017 | VLDB | 9.260657e-05 |
| 2,416 | DITA: Distributed In-Memory Trajectory Analytics | 2018 | SIGMOD | 8.6068712e-05 |
| 3,029 | Trajectory Simplification: An Experimental Study and Quality Analysis | 2018 | VLDB | 7.8340364e-05 |
| 5,163 | One-Pass Error Bounded Trajectory Simplification | 2017 | VLDB | 6.3372141e-05 |
| 6,002 | Compression of Uncertain Trajectories in Road Networks | 2020 | VLDB | 6.0133202e-05 |
| 7,813 | TRACE: Real-time Compression of Streaming Trajectories in Road Networks | 2021 | VLDB | 5.5390003e-05 |
| 8,435 | Spatial Data Quality in the IoT Era: Management and Exploitation | 2022 | SIGMOD | 5.4253644e-05 |
| 8,727 | Quantifying Point Contributions: A Lightweight Framework for Efficient and Effective Query-Driven Trajectory Simplification | 2025 | VLDB | 5.3766157e-05 |
| 10,669 | LCP: Enhancing Scientific Data Management with Lossy Compression for Particles | 2025 | SIGMOD | 5.093636e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 3 of 3 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,381 | Finding Time Period-Based Most Frequent Path in Big Trajectory Data | 2013 | SIGMOD | 0.00010965263 |
| 2,964 | Direction-Preserving Trajectory Simplification | 2013 | VLDB | 7.9156383e-05 |
| 4,729 | EBM - An Entropy-Based Model to Infer Social Strength from Spatiotemporal Data | 2013 | SIGMOD | 6.5359356e-05 |
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| # | Overall Rank | Paper | Year | Venue |
|---|---|---|---|---|
| 1 | 221 | Robust and Fast Similarity Search for Moving Object Trajectories | 2005 | SIGMOD |
| 2 | 8,727 | Quantifying Point Contributions: A Lightweight Framework for Efficient and Effective Query-Driven Trajectory Simplification | 2025 | VLDB |
| 3 | 4,803 | Subtrajectory Clustering: Models and Algorithms | 2018 | PODS |
| 4 | 6,002 | Compression of Uncertain Trajectories in Road Networks | 2020 | VLDB |
| 5 | 10,594 | PILOT-C: Physics-Informed Low-Distortion Optimal Trajectory Compression | 2026 | VLDB |
| 6 | 11,456 | Efficient Non-Learning Similar Subtrajectory Search | 2023 | VLDB |
| 7 | 10,222 | DimWeaver: Dimensional Weaved Trajectory Compression | 2026 | SIGMOD |
| 8 | 5,163 | One-Pass Error Bounded Trajectory Simplification | 2017 | VLDB |
| 9 | 3,029 | Trajectory Simplification: An Experimental Study and Quality Analysis | 2018 | VLDB |
| 10 | 2,964 | Direction-Preserving Trajectory Simplification | 2013 | VLDB |