Look at the Variance! Efficient Black-box Explanations with Sobol-based Sensitivity Analysis

Autor:	Fel, Thomas, Cadene, Remi, Chalvidal, Mathieu, Cord, Matthieu, Vigouroux, David, Serre, Thomas
Rok vydání:	2021
Předmět:	Computer Science - Computer Vision and Pattern Recognition Computer Science - Artificial Intelligence Computer Science - Computation and Language Computer Science - Machine Learning
Zdroj:	Conference on Neural Information Processing Systems (NeurIPS), Dec 2022, Sydney, Australia
Druh dokumentu:	Working Paper
Popis:	We describe a novel attribution method which is grounded in Sensitivity Analysis and uses Sobol indices. Beyond modeling the individual contributions of image regions, Sobol indices provide an efficient way to capture higher-order interactions between image regions and their contributions to a neural network's prediction through the lens of variance. We describe an approach that makes the computation of these indices efficient for high-dimensional problems by using perturbation masks coupled with efficient estimators to handle the high dimensionality of images. Importantly, we show that the proposed method leads to favorable scores on standard benchmarks for vision (and language models) while drastically reducing the computing time compared to other black-box methods -- even surpassing the accuracy of state-of-the-art white-box methods which require access to internal representations. Our code is freely available: https://github.com/fel-thomas/Sobol-Attribution-Method Comment: NeurIPS2021
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2111.04138 Zobrazit plný text záznamu View this record from Arxiv