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Opti-CAM: Optimizing saliency maps for interpretability
March 1, 2024, 5:47 a.m. | Hanwei Zhang, Felipe Torres, Ronan Sicre, Yannis Avrithis, Stephane Ayache
cs.CV updates on arXiv.org arxiv.org
Abstract: Methods based on class activation maps (CAM) provide a simple mechanism to interpret predictions of convolutional neural networks by using linear combinations of feature maps as saliency maps. By contrast, masking-based methods optimize a saliency map directly in the image space or learn it by training another network on additional data.
In this work we introduce Opti-CAM, combining ideas from CAM-based and masking-based approaches. Our saliency map is a linear combination of feature maps, where …
abstract arxiv class contrast convolutional neural networks cs.cv feature image interpretability learn linear map maps masking network networks neural networks predictions simple space training type
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