7 papers
Bridging Policy and Real-World Dynamics: LLM-Augmented Rebalancing for Shared Micromobility Systems
Heng Tan, Hua Yan, Yu Yang
Shared micromobility services such as e-scooters and bikes have become an integral part of urban transportation, yet their efficiency critically depends on effective vehicle rebala…
Mobility-Aware Cache Framework for Scalable LLM-Based Human Mobility Simulation
Hua Yan, Heng Tan, Yingxue Zhang +1
Simulating large-scale human mobility is fundamental to understanding population movement patterns and supporting real-world geospatial applications such as urban planning, epidemi…
Bridging Individual and Collective Realism in LLM-Based Human Mobility Simulation via Mobility Scaling-Law Guidance
Hua Yan, Heng Tan, Yu Yang
Geospatial applications such as urban planning, epidemic forecasting, and transportation demand modeling depend on individual mobility data, but such data are costly to collect, un…
Small Fleet, Big Impact: Enhancing Shared Micromobility Efficiency through Minimal Autonomous Vehicle Deployment
Heng Tan, Hua Yan, Lucas Yang +1
Shared micromobility systems, such as electric scooters and bikes, have gained widespread popularity as sustainable alternatives to traditional transportation modes. However, these…
REALISM: A Regulatory Framework for Coordinated Scheduling in Multi-Operator Shared Micromobility Services
Heng Tan, Hua Yan, Yukun Yuan +2
Shared micromobility (e.g., shared bikes and electric scooters), as a kind of emerging urban transportation, has become more and more popular in the world. However, the blooming of…
LLM-Guided Reinforcement Learning: Addressing Training Bottlenecks through Policy Modulation
Heng Tan, Hua Yan, Yu Yang
While reinforcement learning (RL) has achieved notable success in various domains, training effective policies for complex tasks remains challenging. Agents often converge to local…
Large Language Model-Guided Semantic Alignment for Human Activity Recognition
Hua Yan, Heng Tan, Yi Ding +3
Human Activity Recognition (HAR) using Inertial Measurement Unit (IMU) sensors is critical for applications in healthcare, safety, and industrial production. However, variations in…