RHALE: Robust and Heterogeneity-aware Accumulated Local Effects
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Abstract (arXiv)
Accumulated Local Effects (ALE) is a widely-used explainability method for isolating the average effect of a feature on the output, because it handles cases with correlated features well. However, it has two limitations. First, it does not quantify the deviation of instance-level (local) effects from the average (global) effect, known as heterogeneity. Second, for estimating the average effect, it partitions the feature domain into user-defined, fixed-sized bins, where different bin sizes may lead to inconsistent ALE estimations. To address these limitations, we propose Robust and Heterogeneity-aware ALE (RHALE). RHALE quantifies the heterogeneity by considering the standard deviation of the local effects and automatically determines an optimal variable-size bin-splitting. In this paper, we prove that to achieve an unbiased approximation of the standard deviation of local effects within each bin, bin splitting must follow a set of sufficient conditions. Based on these conditions, we propose an algorithm that automatically determines the optimal partitioning, balancing the estimation bias and variance. Through evaluations on synthetic and real datasets, we demonstrate the superiority of RHALE compared to other methods, including the advantages of automatic bin splitting, especially in cases with correlated features.
Key facts. Cited by 8 papers in the map (data through 14 Oct 2026). Builds on 16 of its 24 references that are in the map. First posted on arXiv 20 Sep 2023.
Builds on
16 of 24 references.
References · 16
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4 more
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Built on by
Citing papers per year: 2023: 2; 2024: 2; 2025: 0; 2026: 4.
8 papers.
- 2023Regionally Additive Models: Explainable-by-design models minimizing feature interactionscited by 3
- 2023Statistical inference using machine learning and classical techniques based on accumulated local effects (ALE)cited by 3
- 2024On the Robustness of Global Feature Effect Explanationscited by 2
- 2024Effector: A Python package for regional explanationscited by 1
- 2026Analyzing Error Sources in Global Feature Effect Estimationcited by 1
- 2026Neural Additive Experts: Context-Gated Experts for Controllable Model Additivitycited by 0
- 2026Interpretability-by-Design with Accurate Locally Additive Models and Conditional Feature Effectscited by 0
- 2026SAILS: Surrogate-based Analysis of Interactions via Local Effect Smoothscited by 0
- 2026SAILS: Surrogate-based Analysis of Interactions via Local Effect Smooths8 Jun 2026
- 2026Analyzing Error Sources in Global Feature Effect Estimation16 Mar 2026
- 2026Interpretability-by-Design with Accurate Locally Additive Models and Conditional Feature Effects18 Feb 2026
- 2026Neural Additive Experts: Context-Gated Experts for Controllable Model Additivity11 Feb 2026
- 2024On the Robustness of Global Feature Effect Explanations13 Jun 2024
- 2024Effector: A Python package for regional explanations3 Apr 2024
- 2023Statistical inference using machine learning and classical techniques based on accumulated local effects (ALE)15 Oct 2023
- 2023Regionally Additive Models: Explainable-by-design models minimizing feature interactions21 Sep 2023