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Adaptive Location Hierarchy Learning for Long-Tailed Mobility Prediction
arXiv β CS AI|Yu Wang, Junshu Dai, Yuchen Ying, Hanyang Yuan, Zunlei Feng, Tongya Zheng, Mingli Song||3 views
π€AI Summary
Researchers propose ALOHA, an architecture-agnostic plugin that improves human mobility prediction models by addressing long-tailed distribution bias in location visits. The system uses Large Language Models and Chain-of-Thought prompts to construct location hierarchies and demonstrates up to 16.59% performance improvements across multiple state-of-the-art models.
Key Takeaways
- βALOHA is the first architecture-agnostic plugin specifically designed to handle long-tailed bias in human mobility prediction models.
- βThe system leverages Large Language Models and Chain-of-Thought prompts to automatically construct city-tailored location hierarchies with minimal human verification.
- βAdaptive Hierarchical Loss (AHL) rebalances learning through Gumbel disturbance and node-wise adaptive weighting to improve prediction accuracy.
- βExtensive experiments show consistent performance improvements of up to 16.59% across multiple state-of-the-art mobility prediction models.
- βThe solution maintains efficiency and robustness while being compatible with diverse existing architectures.
#human-mobility#prediction-models#large-language-models#machine-learning#location-based-services#urban-planning#chain-of-thought#hierarchical-learning
Read Original βvia arXiv β CS AI
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