GLEAMS: Bridging the Gap Between Local and Global Explanations

Fuente: arXiv
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Autori principali: Visani, Giorgio, Stanzione, Vincenzo, Garreau, Damien
Natura: Preprint
Pubblicazione: 2024
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author Visani, Giorgio
Stanzione, Vincenzo
Garreau, Damien
author_facet Visani, Giorgio
Stanzione, Vincenzo
Garreau, Damien
contents The explainability of machine learning algorithms is crucial, and numerous methods have emerged recently. Local, post-hoc methods assign an attribution score to each feature, indicating its importance for the prediction. However, these methods require recalculating explanations for each example. On the other side, while there exist global approaches they often produce explanations that are either overly simplistic and unreliable or excessively complex. To bridge this gap, we propose GLEAMS, a novel method that partitions the input space and learns an interpretable model within each sub-region, thereby providing both faithful local and global surrogates. We demonstrate GLEAMS' effectiveness on both synthetic and real-world data, highlighting its desirable properties and human-understandable insights.
format Preprint
id arxiv_https___arxiv_org_abs_2408_05060
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle GLEAMS: Bridging the Gap Between Local and Global Explanations
Visani, Giorgio
Stanzione, Vincenzo
Garreau, Damien
Machine Learning
Artificial Intelligence
The explainability of machine learning algorithms is crucial, and numerous methods have emerged recently. Local, post-hoc methods assign an attribution score to each feature, indicating its importance for the prediction. However, these methods require recalculating explanations for each example. On the other side, while there exist global approaches they often produce explanations that are either overly simplistic and unreliable or excessively complex. To bridge this gap, we propose GLEAMS, a novel method that partitions the input space and learns an interpretable model within each sub-region, thereby providing both faithful local and global surrogates. We demonstrate GLEAMS' effectiveness on both synthetic and real-world data, highlighting its desirable properties and human-understandable insights.
title GLEAMS: Bridging the Gap Between Local and Global Explanations
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2408.05060