Trajectory Compression with Spatio-Temporal Semantic Constraints
Bibliographic Data
| ID | 22031160 |
|---|---|
| Authors | Yan Zhou (0000-0002-3659-5881, University of Electronic Science and Technology of China), Yunhan Zhang (0000-0002-3937-753X, University of Electronic Science and Technology of China), Fangfang Zhang (0000-0003-2385-2356, Ministry of Natural Resources), Yeting Zhang (0000-0002-9611-9051, University of Electronic Science and Technology of China, corresponding author), Xiaodi Wang (0000-0001-7039-2503, University of Electronic Science and Technology of China) |
| Year | 2024 |
| Volume | 13 |
| Issue | 6 |
| Pages | 212 |
| Publication date | 2024-06-18 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | ISPRS International Journal of Geo-Information (JOURNAL) |
| Journal identifiers | ISSN: 2220-9964 • E-ISSN: 2220-9964 |
| Publisher | MDPI AG (PUBLISHER • IT) |
| DOI | 10.3390/ijgi13060212 |
| OpenAlex | W4399810343 |
| Language | EN |
| Citations received | 2 |
| References cited | 22 |
Most trajectory compression methods primarily focus on geometric similarity between compressed and original trajectories, lacking explainability of compression results due to ignoring semantic information. This paper proposes a spatio-temporal semantic constrained trajectory compression method. It constructs a new trajectory distance measurement model integrating both semantic and spatio-temporal features. This model quantifies semantic features using information entropy and measures spatio-temporal features with synchronous Euclidean distance. The compression principle is to retain feature points with maximum spatio-temporal semantic distance from the original trajectory until the compression rate is satisfied. Experimental results show these methods closely resemble each other in maintaining geometric similarity of trajectories, but our method significantly outperforms DP, TD-TR, and CascadeSync methods in preserving semantic similarity of trajectories. This indicates that our method considers both geometric and semantic features during compression, resulting in the compressed trajectory becoming more interpretable
Physics · Trajectory · Advanced Database Systems and Queries · Computer Science · Data Management and Algorithms · Materials Science · Semantic Web and Ontologies
| Unique citing works | 2 |
|---|---|
| Citations per year | 2 |
| Citation span | 2025 - 2025 (1) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 2 |