arXiv:2605.12435cs.LGcs.CE2026-05

针对火灾预测中环境变化与数据长尾问题,提出自适应优化框架。

Environment-Adaptive Preference Optimization for Wildfire Prediction

论文配图:Environment-Adaptive Preference Optimization for Wildfire Prediction
图 1 · 摘自论文原文
  • 基于k近邻构建目标环境数据集,实现分布对齐
  • 融合监督学习与偏好优化,提升极端事件检测能力
  • 适合动态环境下的罕见灾害预测系统

从气象数据预测罕见极端事件(如野火)需模型在不断变化的环境中保持可靠性。该问题具有固有的长尾分布特征:野火事件稀少但影响巨大,多数观测属于非火灾状态,导致标准学习目标忽视最关键的少数类(火灾)。此外,基于历史分布训练的模型在分布偏移下表现下降。为此,我们提出环境自适应偏好优化(EAPO),一种适应目标环境长尾分布的预测框架。给定新输入分布后,先通过k-最近邻检索构建分布对齐数据集,再在此局部流形上进行混合微调,结合监督学习与偏好优化,并强化对稀有极端事件的关注。EAPO在调整决策边界的同时避免异质训练数据带来的冲突信号。我们在存在环境变化的真实野火预测任务上评估该方法,取得鲁棒性能(ROC-AUC 0.7310),并在极端情形下提升检测效果,验证其在动态野火预测系统中的有效性。

原文摘要 · Abstract (English)

Predicting rare extreme events such as wildfires from meteorological data requires models that remain reliable under evolving environmental conditions. This problem is inherently long-tailed: wildfire events are rare but high-impact, while most observations correspond to non-fire conditions, causing standard learning objectives to underemphasize the minority class (fire) that matters most. In addition, models trained on historical distributions often fail under distribution shifts, exhibiting degraded performance in new environments. To this end, we propose Environment-Adaptive Preference Optimization (EAPO), a framework that adapts prediction to the target environment with long-tail distribution. Given a new input distribution, we first construct distribution-aligned datasets via $k$-nearest neighbor retrieval. We then perform a hybrid fine-tuning procedure on this local manifold, combining supervised learning with preference optimization, as well as emphasizing on rare extreme events. EAPO refines decision boundaries while avoiding conflicting signals from heterogeneous training data. We evaluate EAPO on a real-world wildfire prediction task with environmental shifts. EAPO achieves robust performance (ROC-AUC 0.7310) and improves detection in extreme regimes, demonstrating its effectiveness in dynamic wildfire prediction systems.

野火预测长尾分布自适应学习

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