AdaptGrad: Adaptive Sampling to Reduce Noise
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Abstract (arXiv)
Gradient Smoothing is an efficient approach to reducing noise in gradient-based model explanation method. SmoothGrad adds Gaussian noise to mitigate much of these noise. However, the crucial hyper-parameter in this method, the variance σ of Gaussian noise, is set manually or with heuristic approach. However, it results in the smoothed gradients still containing a certain amount of noise. In this paper, we aim to interpret SmoothGrad as a corollary of convolution, thereby re-understanding the gradient noise and the role of σ from the perspective of confidence level. Furthermore, we propose an adaptive gradient smoothing method, AdaptGrad, based on these insights. Through comprehensive experiments, both qualitative and quantitative results demonstrate that AdaptGrad could effectively reduce almost all the noise in vanilla gradients compared with baselines methods. AdaptGrad is simple and universal, making it applicable for enhancing gradient-based interpretability methods for better visualization.
Key facts. Cited by 2 papers in the map (data through 14 Oct 2026). Builds on 45 of its 58 references that are in the map. First posted on arXiv 10 Oct 2024.
Builds on
45 of 58 references.
References · 45
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- 2017SmoothGrad: removing noise by adding noisecited by 1,109
33 more
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- 2017Grad-CAM++: Improved Visual Explanations for Deep Convolutional Networkscited by 939
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Citing papers per year: 2025: 1; 2026: 1.
2 papers.