用公平性算法优化洪水救援分配,让最弱势地区优先获援。
Toward Equitable Recovery: A Fairness-Aware AI Framework for Prioritizing Post-Flood Aid in Bangladesh
- 引入对抗去偏模型,学习不受历史偏见影响的脆弱性评估表示。
- 在87个区中降低41.6%统计平等差异,减少43.2%区域公平差距。
- 适合政策制定者和人道机构,推动灾后援助更公平可执行。
发展中国家灾后援助分配常存在系统性偏见,加剧弱势地区不公。本文针对高易涝国孟加拉国,基于2022年洪水真实数据(影响720万人,损失4.055亿美元),提出一种公平性感知的AI框架,用于洪水灾后援助优先级排序。采用医疗AI中的公平表征学习技术,通过梯度反转层强制模型学习对偏见免疫的特征表示。在11个县共87个上阿齐拉的实验表明,该框架使统计平等差异降低41.6%,区域公平差距缩小43.2%,同时保持较高预测精度(R²=0.784,基线为0.811)。模型生成可操作的优先级排名,确保援助依据真实需求而非历史模式分配。本研究证明算法公平性技术可有效应用于人道主义场景,为决策者提供实现更公平灾后恢复的工具。
原文摘要 · Abstract (English)
Post-disaster aid allocation in developing nations often suffers from systematic biases that disadvantage vulnerable regions, perpetuating historical inequities. This paper presents a fairness-aware artificial intelligence framework for prioritizing post-flood aid distribution in Bangladesh, a country highly susceptible to recurring flood disasters. Using real data from the 2022 Bangladesh floods that affected 7.2 million people and caused 405.5 million US dollars in damages, we develop an adversarial debiasing model that predicts flood vulnerability while actively removing biases against marginalized districts and rural areas. Our approach adapts fairness-aware representation learning techniques from healthcare AI to disaster management, employing a gradient reversal layer that forces the model to learn bias-invariant representations. Experimental results on 87 upazilas across 11 districts demonstrate that our framework reduces statistical parity difference by 41.6 percent, decreases regional fairness gaps by 43.2 percent, and maintains strong predictive accuracy (R-squared=0.784 vs baseline 0.811). The model generates actionable priority rankings ensuring aid reaches the most vulnerable populations based on genuine need rather than historical allocation patterns. This work demonstrates how algorithmic fairness techniques can be effectively applied to humanitarian contexts, providing decision-makers with tools to implement more equitable disaster recovery strategies.
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