arXiv:2508.15220cs.LGcs.AI2025-08中稿 · ATVA'25被引 1

提出局部最优保证的可解释性生成框架,兼顾准确与可解释性。

Locally Pareto-Optimal Interpretations for Black-Box Machine Learning Models

  • 基于局部最优性验证,用SAT求解器高效筛选候选解释。
  • 在多个基准上逼近全局最优方法的解释质量。
  • 适合需要可信、可扩展解释的黑箱模型应用。

为黑箱机器学习模型生成有意义的解释需平衡准确性与可解释性。现有方法多缺乏帕累托最优的严格保证,而有保证的方法又面临严重可扩展性问题。本文提出一种基于局部最优性保证的框架,可在每个解的邻域内实现帕累托最优解释的高效合成。首先使用多目标蒙特卡洛树搜索等技术生成一组帕累托最优候选解释,再将局部最优性验证转化为布尔可满足性问题,由SAT求解器求解。在多个基准测试中,该方法生成的解释质量接近具有全局保证方法的结果,同时显著提升效率。

原文摘要 · Abstract (English)

Creating meaningful interpretations for black-box machine learning models involves balancing two often conflicting objectives: accuracy and explainability. Exploring the trade-off between these objectives is essential for developing trustworthy interpretations. While many techniques for multi-objective interpretation synthesis have been developed, they typically lack formal guarantees on the Pareto-optimality of the results. Methods that do provide such guarantees, on the other hand, often face severe scalability limitations when exploring the Pareto-optimal space. To address this, we develop a framework based on local optimality guarantees that enables more scalable synthesis of interpretations. Specifically, we consider the problem of synthesizing a set of Pareto-optimal interpretations with local optimality guarantees, within the immediate neighborhood of each solution. Our approach begins with a multi-objective learning or search technique, such as Multi-Objective Monte Carlo Tree Search, to generate a best-effort set of Pareto-optimal candidates with respect to accuracy and explainability. We then verify local optimality for each candidate as a Boolean satisfiability problem, which we solve using a SAT solver. We demonstrate the efficacy of our approach on a set of benchmarks, comparing it against previous methods for exploring the Pareto-optimal front of interpretations. In particular, we show that our approach yields interpretations that closely match those synthesized by methods offering global guarantees.

可解释性帕累托优化黑箱模型SAT求解

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