arXiv:2512.21435stat.APcs.LG2025-12

动态注意力模型提升冲突死亡预测精度,还能解释暴力扩散与气候影响。

Dynamic Attention (DynAttn): Interpretable High-Dimensional Spatio-Temporal Forecasting (with Application to Conflict Fatalities)

  • 用动态注意力+弹性网门控捕捉时空暴力模式
  • 在网格级数据上预测准确率显著优于现有方法
  • 适合政策制定者分析冲突演化机制

冲突死亡预测因数据稀疏、突发性强且非平稳,仍是政治科学与政策分析的核心挑战。本文提出DynAttn,一种可解释的高维时空计数过程动态注意力预测框架。其结合滚动窗口估计、共享弹性网特征门控、紧凑权值共享自注意力编码器及零膨胀负二项分布似然,实现多时距伤亡期望与超限概率的校准预测,同时通过特征门控、消融分析与弹性度量保持透明诊断能力。我们在全球国家层级与高分辨率PRIO网格层级的VIEWS系统数据上评估,对比了DynENet、LSTM、Prophet、PatchTST及官方VIEWS基线。在1至12个月的预测周期中,DynAttn始终显著提升预测准确性,尤其在稀疏网格级场景下,其性能远超易失稳或骤降的竞品模型。此外,跨区域分析表明,短期冲突持续性与空间扩散构成核心预测基础,而气候压力则视冲突地区不同,可能作为条件放大器或主要驱动因素。

原文摘要 · Abstract (English)

Forecasting conflict-related fatalities remains a central challenge in political science and policy analysis due to the sparse, bursty, and highly non-stationary nature of violence data. We introduce DynAttn, an interpretable dynamic-attention forecasting framework for high-dimensional spatio-temporal count processes. DynAttn combines rolling-window estimation, shared elastic-net feature gating, a compact weight-tied self-attention encoder, and a zero-inflated negative binomial (ZINB) likelihood. This architecture produces calibrated multi-horizon forecasts of expected casualties and exceedance probabilities, while retaining transparent diagnostics through feature gates, ablation analysis, and elasticity measures. We evaluate DynAttn using global country-level and high-resolution PRIO-grid-level conflict data from the VIEWS forecasting system, benchmarking it against established statistical and machine-learning approaches, including DynENet, LSTM, Prophet, PatchTST, and the official VIEWS baseline. Across forecast horizons from one to twelve months, DynAttn consistently achieves substantially higher predictive accuracy, with particularly large gains in sparse grid-level settings where competing models often become unstable or degrade sharply. Beyond predictive performance, DynAttn enables structured interpretation of regional conflict dynamics. In our application, cross-regional analyses show that short-run conflict persistence and spatial diffusion form the core predictive backbone, while climate stress acts either as a conditional amplifier or a primary driver depending on the conflict theater.

时空预测冲突建模可解释性动态注意力

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。