Quantifying Point Contributions: A Lightweight Framework for Efficient and Effective Query-Driven Trajectory Simplification

Summary: MLSimp: a mutual-learning, query-driven trajectory simplification framework combining GNN-TS (attention-based GNN capturing globality and uniqueness to avoid iterative pruning) and Diff-TS (diffusion-based signal amplification for low-rate retention). Cuts simplification time 42–70% and improves query accuracy up to 34.6% vs eight baselines. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 14064
Venue: VLDB
Year: 2025
Pagerank: 4.1945683e-05
Overall Rank: 10,750 | 25.22%
DOI: 10.14778/3705829.3705858

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Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
10,272	MH-GIN: Multi-scale Heterogeneous Graph-based Imputation Network for AIS Data	2026	VLDB	4.1945683e-05

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
251	Robust and Fast Similarity Search for Moving Object Trajectories	2005	SIGMOD	0.00030644658
1,126	Trajectory Clustering: A Partition-and-Group Framework	2007	SIGMOD	0.00013821443
2,850	Trajectory Simplification: On Minimizing the Direction-based Error	2015	VLDB	8.0191031e-05
3,088	Direction-Preserving Trajectory Simplification	2013	VLDB	7.5936173e-05
3,318	Trajectory Simplification: An Experimental Study and Quality Analysis	2018	VLDB	7.2282052e-05
3,429	Real-time Workload Pattern Analysis for Large-scale Cloud Databases	2023	VLDB	7.1010535e-05
3,934	SimpleTS: An Efficient and Universal Model Selection Framework for Time Series Forecasting	2023	VLDB	6.6175631e-05
6,004	Compression of Uncertain Trajectories in Road Networks	2020	VLDB	5.2415551e-05
6,512	Trajectory Similarity Measurement: An Efficiency Perspective	2024	VLDB	5.0321577e-05
9,446	TRACE: Real-time Compression of Streaming Trajectories in Road Networks	2021	VLDB	4.3404859e-05

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