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Input gradients have a pivotal role in a variety of applications, including adversarial attack algorithms for evaluating model robustness, explainable AI techniques for generating Saliency Maps, and counterfactual explanations.However,…

人工智能 · 计算机科学 2024-02-05 Mathieu Serrurier , Franck Mamalet , Thomas Fel , Louis Béthune , Thibaut Boissin

Graph convolutional networks (GCNs) allow to apply traditional convolution operations in non-Euclidean domains, where data are commonly modelled as irregular graphs. Medical imaging and, in particular, neuroscience studies often rely on…

计算机视觉与模式识别 · 计算机科学 2018-06-06 Salim Arslan , Sofia Ira Ktena , Ben Glocker , Daniel Rueckert

Graph Convolutional Neural Networks (GCNs) has been generally accepted to be an effective tool for node representations learning. An interesting way to understand GCNs is to think of them as a message passing mechanism where each node…

机器学习 · 计算机科学 2022-10-04 Wei Duan , Junyu Xuan , Maoying Qiao , Jie Lu

This paper presents a tutorial of an explainable approach using Convolutional Neural Network (CNN) and Gradient-weighted Class Activation Mapping (Grad-CAM) to classify four progressive dementia stages based on open MRI brain images. The…

图像与视频处理 · 电气工程与系统科学 2024-08-21 Kevin Kam Fung Yuen

Gradient-based saliency methods are widely used to interpret deep neural networks, yet they often produce noisy and unstable explanations that poorly align with semantically meaningful input features. We argue that a fundamental cause of…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Ali Karkehabadi , Jamshid Hassanpour , Houman Homayoun , Avesta Sasan

Using only global image-class labels, weakly-supervised learning methods, such as class activation mapping, allow training CNNs to jointly classify an image, and locate regions of interest associated with the predicted class. However,…

图像与视频处理 · 电气工程与系统科学 2022-05-06 Soufiane Belharbi , Marco Pedersoli , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

This paper addresses the visualisation of image classification models, learnt using deep Convolutional Networks (ConvNets). We consider two visualisation techniques, based on computing the gradient of the class score with respect to the…

计算机视觉与模式识别 · 计算机科学 2014-04-22 Karen Simonyan , Andrea Vedaldi , Andrew Zisserman

It is known that deep neural networks (DNNs) classify an input image by paying particular attention to certain specific pixels; a graphical representation of the magnitude of attention to each pixel is called a saliency-map. Saliency-maps…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Satoshi Munakata , Caterina Urban , Haruki Yokoyama , Koji Yamamoto , Kazuki Munakata

We introduce a saliency-based distortion layer for convolutional neural networks that helps to improve the spatial sampling of input data for a given task. Our differentiable layer can be added as a preprocessing block to existing task…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Adrià Recasens , Petr Kellnhofer , Simon Stent , Wojciech Matusik , Antonio Torralba

With their increase in performance, neural network architectures also become more complex, necessitating explainability. Therefore, many new and improved methods are currently emerging, which often generate so-called saliency maps in order…

机器学习 · 计算机科学 2024-12-24 Leonid Schwenke , Martin Atzmueller

In order to maximize the applicability of sentiment analysis results, it is necessary to not only classify the overall sentiment (positive/negative) of a given document but also to identify the main words that contribute to the…

计算与语言 · 计算机科学 2017-10-02 Gichang Lee , Jaeyun Jeong , Seungwan Seo , CzangYeob Kim , Pilsung Kang

Saliency methods compute heat maps that highlight portions of an input that were most {\em important} for the label assigned to it by a deep net. Evaluations of saliency methods convert this heat map into a new {\em masked input} by…

机器学习 · 统计学 2022-11-08 Arushi Gupta , Nikunj Saunshi , Dingli Yu , Kaifeng Lyu , Sanjeev Arora

Numerous efforts have been made to design different low level saliency cues for the RGBD saliency detection, such as color or depth contrast features, background and color compactness priors. However, how these saliency cues interact with…

计算机视觉与模式识别 · 计算机科学 2017-04-26 Liangqiong Qu , Shengfeng He , Jiawei Zhang , Jiandong Tian , Yandong Tang , Qingxiong Yang

Salient object detection increasingly receives attention as an important component or step in several pattern recognition and image processing tasks. Although a variety of powerful saliency models have been intensively proposed, they…

计算机视觉与模式识别 · 计算机科学 2016-11-18 Tianshui Chen , Liang Lin , Lingbo Liu , Xiaonan Luo , Xuelong Li

This paper investigates the role of saliency to improve the classification accuracy of a Convolutional Neural Network (CNN) for the case when scarce training data is available. Our approach consists in adding a saliency branch to an…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Carola Figueroa Flores , Abel Gonzalez-García , Joost van de Weijer , Bogdan Raducanu

In this paper, we propose a fast deep learning method for object saliency detection using convolutional neural networks. In our approach, we use a gradient descent method to iteratively modify the input images based on the pixel-wise…

计算机视觉与模式识别 · 计算机科学 2016-02-02 Hengyue Pan , Hui Jiang

Class activation map (CAM) helps to formulate saliency maps that aid in interpreting the deep neural network's prediction. Gradient-based methods are generally faster than other branches of vision interpretability and independent of human…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Masud An Nur Islam Fahim , Nazmus Saqib , Shafkat Khan Siam , Ho Yub Jung

Deep neural networks have shown their profound impact on achieving human level performance in visual saliency prediction. However, it is still unclear how they learn the task and what it means in terms of understanding human visual system.…

计算机视觉与模式识别 · 计算机科学 2021-09-09 Sai Phani Kumar Malladi , Jayanta Mukhopadhyay , Chaker Larabi , Santanu Chaudhury

Saliency Map, the gradient of the score function with respect to the input, is the most basic technique for interpreting deep neural network decisions. However, saliency maps are often visually noisy. Although several hypotheses were…

机器学习 · 计算机科学 2019-09-17 Beomsu Kim , Junghoon Seo , SeungHyun Jeon , Jamyoung Koo , Jeongyeol Choe , Taegyun Jeon

Saliency detection is an active topic in the multimedia field. Most previous works on saliency detection focus on 2D images. However, these methods are not robust against complex scenes which contain multiple objects or complex backgrounds.…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Chunbiao Zhu , Ge Li