arXiv Machine Learning By Rongchao Xu, Dahai Yu, Lin Jiang, Guang Wang

ZeroHAT: Behavior-Conditioned Zero-Shot Human Activity Trace Generation

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ZeroHAT is a new framework for generating synthetic human activity traces (HATs) in a target region without any real data from that region. It transfers behavioral patterns learned from real HATs in source regions and adapts them using publicly available contextual information about the target region. The system includes a consistency-aware intent extractor, a cross-region behavioral cloning module, and a behavior-conditioned activity realization module, and it outperforms the strongest baseline by 4.5–6.4× in downstream utility and improves fidelity by 15.6–40.8% across ten cities.

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