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arXiv · 2410.16633

Graph-Structured Trajectory Extraction from Travelogues

Aitaro Yamamoto·Hiroyuki Otomo·Hiroki Ouchi·Shohei Higashiyama·Hiroki Teranishi·Hiroyuki Shindo·Taro Watanabe
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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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Aitaro Yamamoto, Hiroyuki Otomo, Hiroki Ouchi, Shohei Higashiyama, Hiroki Teranishi, Hiroyuki Shindo, Taro Watanabe. 2024-10-22. Graph-Structured Trajectory Extraction from Travelogues. https://arxiv.org/abs/2410.16633

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