Abstract
This paper proposes H-UPF (Hybrid Universal Policy with Forecasting), a hybrid intelligent framework for scalable sequential decision-making in heterogeneous environments under uncertainty. The architecture integrates probabilistic multi-horizon forecasting via a Temporal Fusion Transformer with continuous control via Proximal Policy Optimization, embedding predictive quantile distributions directly into the agent’s state representation. A Dynamic Adaptation Layer normalizes observations relative to instance-specific scales, enabling zero-shot policy transfer across environments with 18.5× variability in operating characteristics — without inter-agent communication or per-instance retraining. Validated on two real-world residential energy management datasets (REFIT: 20 UK households; CityLearn: 6 US buildings with real PV profiles), the framework achieves 88.4% of the theoretical optimum in zero-shot transfer, outperforming meta-learning (MAML-PPO) by 8.4 percentage points (Wilcoxon p = 0.003, Cohen’s d = 1.42). Ablation analysis identifies the adaptation layer as the dominant contributor (−16.2 p.p. upon removal), while probabilistic forecasting adds +6.8 p.p. through proactive scheduling. The learned policy is robust to reward parameter variations (≤3.2 p.p. sensitivity across 5× range) and supports practical deployment: 9.8 h one-time training, 18.4 ms inference per control step.