📑 arXiv 3d ago
Meituan Merchant Business Diagnosis via Policy-Guided Dual-Process User Simulation
Meituan introduces Policy-Guided Hybrid Simulation (PGHS), a dual-process framework that simulates group-level user behavior for merchant strategy evaluation by mining transferable decision policies from behavioral trajectories. The approach addresses information incompleteness and mechanism duality by anchoring an LLM-based reasoning branch with behavioral policies to prevent over-rationalization. This enables scalable counterfactual evaluation without costly online experiments.