让用户参与建模,生成更符合个人情况的改进建议。
Personalized Causal Recourse: A Human-In-The-Loop Approach

- 通过人机交互和贝叶斯推断逐步构建用户的因果模型。
- 在模拟中验证了个性化建议的可行性与有效性。
- 适合需要高可解释性、高定制化决策的场景。
算法救济旨在为受机器学习负面决策影响的用户提供个性化建议,尤其适用于高风险场景。传统方法常依赖最近的反事实解释或预设用户因果结构,导致干预方案忽视个体背景与特征间复杂互动。为此,我们提出一种人机协同框架,通过交互式查询结合贝叶斯推断,迭代逼近用户的结构化因果模型,再生成符合其真实因果关系的个性化救济建议。该方法利用人类反馈提升因果效应识别精度,使建议更具合理性、成本可控且贴合实际。作为概念验证,我们在线性和非线性因果模型上进行模拟人类响应测试,结果表明该框架表现良好,但对复杂非线性结构仍存在挑战,凸显准确建模与稳健噪声分布的重要性。
原文摘要 · Abstract (English)
Algorithmic recourse addresses the challenge of providing tailored recommendations to users affected by unfavorable machine learning decisions, in potentially high-stakes scenarios. Traditional approaches to recourse often rely on the closest counterfactual explanations or assume a priori knowledge of a user's causal structure, resulting in interventions that overlook individual contexts and specific feature interactions. To overcome these limitations, we study a human-in-the-loop framework that iteratively approximates the user's structural causal model through interactive queries via Bayesian inference before producing recourse recommendations. This framework exploits humans' feedback to improve the identification of causal effects, allowing personalized recourse that is plausible, cost-effective, and aligned with the actual causal dependencies of each user. As a proof of concept, we evaluate this framework through simulated human responses. Our simulations across linear and non-linear causal models show promising results, though challenges remain in capturing complex, non-linear structures, emphasizing the importance of accurate approximations and robust noise distribution modeling.
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