探索变压器和图形卷积网络用于人类移动性建模.
Riccardo Corrias1, Martin Gjoreski1, Marc Langheinrich1
1Computer Systems Institute, Faculty of Informatics, Università della Svizzera italiana (USI), 6900 Lugano, Switzerland.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
使用通用变压器 (GPT) 和图形卷积网络 (GCN) 的新人工智能模型显示出预测人类下一个位置的流动性的前景. 虽然在稀疏数据上的专业模型略高于它们的表现,但在密集数据集上的表现表明了先进的移动性估计的未来潜力.
科学领域:
- 人工智能的人工智能
- 人类流动性研究 人类流动性研究
- 数据科学数据科学数据科学
背景情况:
- 准确估计人类流动模式对于城市规划,污染控制和疾病管理至关重要.
- 对于移动性估计至关重要的下一个位置预测器,尚未利用像GPT和GCNs这样的先进AI技术.
研究的目的:
- 探索基于通用变压器 (GPT) 和图形卷积网络 (GCN) 模型的有效性,以预测下一个位置.
- 在稀疏和密集的移动数据集上,将GPT和GCN模型的性能与最新的模型 (Flashback-LSTM) 进行比较.
主要方法:
- 开发基于GPT和GCN的模型,根据一般时间序列预测架构进行调整.
- 通过使用两个稀疏 (入住) 和一个密集 (连续GPS) 人类移动数据集来评估模型性能.
主要成果:
- 基于GPT的模型在基于GCN的模型 (1.03.2 p.p.) 上显示出轻微的精度优势. 在测试过的数据集上.
- Flashback-LSTM在稀疏的数据集 (1.03.5pp) 上略高于GPT和GCN模型的表现. 差异) 的区别.
- 所有评估的模型在密集的GPS数据集上都具有可比的性能.
结论:
- 在下一个位置的预测中,GPT和GCN模型的性能与最先进的方法相美.
- 随着未来的移动数据变得更加密集 (例如,来自智能手机),稀疏数据性能的相关性可能会减少.
- 对于GPT和GCN模型来说,有很大的潜力来推进超越当前最先进的能力的人类流动性预测.
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