Segment Integrated Gradients: Better attributions through regions.
CoRR(2019)
摘要
Saliency methods can aid understanding of deep neural networks. Recent years have witnessed many improvements to saliency methods, as well as new ways for evaluating them. In this paper, we 1) present a novel region-based attribution method, Segment-Integrated Gradients (SIG), that builds upon integrated gradients (Sundararajan et al. 2017), 2) introduce evaluation methods for empirically assessing the quality of image-based saliency maps (Performance Information Curves (PICs)), and 3) contribute an axiom-based sanity check for attribution methods. Through empirical experiments and example results, we show that SIG produces better results than other saliency methods for common models and the ImageNet dataset.
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关键词
attribution methods,XRAI,saliency methods,deep neural networks,region-based,evaluation methods,image-based saliency maps,axiom-based sanity check,performance information curves,PIC,ImageNet dataset
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