QPM: Discrete Optimization for Globally Interpretable Image Classification

Fuente: arXiv
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Autores principales: Norrenbrock, Thomas, Kaiser, Timo, Biswas, Sovan, Manuvinakurike, Ramesh, Rosenhahn, Bodo
Formato: Preprint
Publicado: 2025
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author Norrenbrock, Thomas
Kaiser, Timo
Biswas, Sovan
Manuvinakurike, Ramesh
Rosenhahn, Bodo
author_facet Norrenbrock, Thomas
Kaiser, Timo
Biswas, Sovan
Manuvinakurike, Ramesh
Rosenhahn, Bodo
contents Understanding the classifications of deep neural networks, e.g. used in safety-critical situations, is becoming increasingly important. While recent models can locally explain a single decision, to provide a faithful global explanation about an accurate model's general behavior is a more challenging open task. Towards that goal, we introduce the Quadratic Programming Enhanced Model (QPM), which learns globally interpretable class representations. QPM represents every class with a binary assignment of very few, typically 5, features, that are also assigned to other classes, ensuring easily comparable contrastive class representations. This compact binary assignment is found using discrete optimization based on predefined similarity measures and interpretability constraints. The resulting optimal assignment is used to fine-tune the diverse features, so that each of them becomes the shared general concept between the assigned classes. Extensive evaluations show that QPM delivers unprecedented global interpretability across small and large-scale datasets while setting the state of the art for the accuracy of interpretable models.
format Preprint
id arxiv_https___arxiv_org_abs_2502_20130
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle QPM: Discrete Optimization for Globally Interpretable Image Classification
Norrenbrock, Thomas
Kaiser, Timo
Biswas, Sovan
Manuvinakurike, Ramesh
Rosenhahn, Bodo
Computer Vision and Pattern Recognition
Artificial Intelligence
Human-Computer Interaction
Machine Learning
Understanding the classifications of deep neural networks, e.g. used in safety-critical situations, is becoming increasingly important. While recent models can locally explain a single decision, to provide a faithful global explanation about an accurate model's general behavior is a more challenging open task. Towards that goal, we introduce the Quadratic Programming Enhanced Model (QPM), which learns globally interpretable class representations. QPM represents every class with a binary assignment of very few, typically 5, features, that are also assigned to other classes, ensuring easily comparable contrastive class representations. This compact binary assignment is found using discrete optimization based on predefined similarity measures and interpretability constraints. The resulting optimal assignment is used to fine-tune the diverse features, so that each of them becomes the shared general concept between the assigned classes. Extensive evaluations show that QPM delivers unprecedented global interpretability across small and large-scale datasets while setting the state of the art for the accuracy of interpretable models.
title QPM: Discrete Optimization for Globally Interpretable Image Classification
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Human-Computer Interaction
Machine Learning
url https://arxiv.org/abs/2502.20130