Graph-Structured Trajectory Extraction from Travelogues

Aitaro Yamamoto, Hiroyuki Otomo, Hiroki Ouchi, Shohei Higashiyama, Hiroki Teranishi +2 more
10/22/2024
cs.CLcs.AI

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Abstract

Previous studies on sequence-based extraction of human movement trajectories have an issue of inadequate trajectory representation. Specifically, a pair of locations may not be lined up in a sequence especially when one location includes the other geographically. In this study, we propose a graph representation that retains information on the geographic hierarchy as well as the temporal order of visited locations, and have constructed a benchmark dataset for graph-structured trajectory extraction. The experiments with our baselines have demonstrated that it is possible to accurately predict visited locations and the order among them, but it remains a challenge to predict the hierarchical relations.

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Cite this paper

@article{yamamoto2024graphstructured,
  title  = {Graph-Structured Trajectory Extraction from Travelogues},
  author = {Aitaro Yamamoto and Hiroyuki Otomo and Hiroki Ouchi and Shohei Higashiyama and Hiroki Teranishi and Hiroyuki Shindo and Taro Watanabe},
  year   = {2024},
  eprint = {2410.16633},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2410.16633v1}
}

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