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Class activation map (CAM) highlights regions of classes based on classification network, which is widely used in weakly supervised tasks. However, it faces the problem that the class activation regions are usually small and local. Although…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Kaixu Huang , Fanman Meng , Hongliang Li , Shuai Chen , Qingbo Wu , King N. Ngan

A feature learning task involves training models that are capable of inferring good representations (transformations of the original space) from input data alone. When working with limited or unlabelled data, and also when multiple visual…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Gabriel B. Cavallari , Leonardo Sampaio Ferraz Ribeiro , Moacir Antonelli Ponti

Open-set image recognition is a challenging topic in computer vision. Most of the existing works in literature focus on learning more discriminative features from the input images, however, they are usually insensitive to the high- or…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Qiulei Dong , Jiayin Sun , Mengyu Gao

Visual explanation enables human to understand the decision making of Deep Convolutional Neural Network (CNN), but it is insufficient to contribute the performance improvement. In this paper, we focus on the attention map for visual…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Hiroshi Fukui , Tsubasa Hirakawa , Takayoshi Yamashita , Hironobu Fujiyoshi

The necessity of abundant annotated data and complex network architectures presents a significant challenge in deep-learning Salient Object Detection (deep SOD) and across the broader deep-learning landscape. This challenge is particularly…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Felipe Crispim Salvagnini , Jancarlo F. Gomes , Cid A. N. Santos , Silvio Jamil F. Guimarães , Alexandre X. Falcão

Convolutional neural network (CNN) models for computer vision are powerful but lack explainability in their most basic form. This deficiency remains a key challenge when applying CNNs in important domains. Recent work on explanations…

Computer Vision and Pattern Recognition · Computer Science 2021-06-18 Ruihan Zhang , Prashan Madumal , Tim Miller , Krista A. Ehinger , Benjamin I. P. Rubinstein

Transparency and explainability in image classification are essential for establishing trust in machine learning models and detecting biases and errors. State-of-the-art explainability methods generate saliency maps to show where a specific…

Machine Learning · Computer Science 2024-07-30 Matteo Bianchi , Antonio De Santis , Andrea Tocchetti , Marco Brambilla

Deep learning models have shown their superior performance in various vision tasks. However, the lack of precisely interpreting kernels in convolutional neural networks (CNNs) is becoming one main obstacle to wide applications of deep…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Jia-Xin Zhuang , Wanying Tao , Jianfei Xing , Wei Shi , Ruixuan Wang , Wei-shi Zheng

In this paper, we present contemporary techniques for visualising the feature space of a deep learning image classification neural network. These techniques are viewed in the context of a feed-forward network trained to classify low…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Ezra Webb , Cheng Lei , Chun-Jung Huang , Hirofumi Kobayashi , Hideharu Mikami , Keisuke Goda

Deep learning underlies most modern approaches and tools in computer vision, including biomedical imaging. However, for interactive semantic segmentation (often called pixel classification in this context) and interactive object-level…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Carolin Teuber , Anwai Archit , Tobias Boothe , Peter Ditte , Jochen Rink , Constantin Pape

Convolutional Neural Networks (CNNs) have recently been shown to excel at performing visual place recognition under changing appearance and viewpoint. Previously, place recognition has been improved by intelligently selecting relevant…

Robotics · Computer Science 2018-10-31 Stephen Hausler , Adam Jacobson , Michael Milford

In this paper, we report a hierarchical deep learning model for classification of complex human activities using motion sensors. In contrast to traditional Human Activity Recognition (HAR) models used for event-based activity recognition,…

Machine Learning · Computer Science 2022-07-19 Eric Rosen , Doruk Senkal

Obtaining compact and discriminative features is one of the major challenges in many of the real-world image classification tasks such as face verification and object recognition. One possible approach is to represent input image on the…

Computer Vision and Pattern Recognition · Computer Science 2012-11-29 Junyoung Chung , Donghoon Lee , Youngjoo Seo , Chang D. Yoo

CNNs have excelled at performing place recognition over time, particularly when the neural network is optimized for localization in the current environmental conditions. In this paper we investigate the concept of feature map filtering,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Stephen Hausler , Adam Jacobson , Michael Milford

The aim of this work is to propose an ensemble of descriptors for Melanoma Classification, whose performance has been evaluated on validation and test datasets of the melanoma challenge 2018. The system proposed here achieves a strong…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Loris Nanni , Alessandra Lumini , Stefano Ghidoni

Despite their black-box nature, deep learning models are extensively used in image-based drug discovery to extract feature vectors from single cells in microscopy images. To better understand how these networks perform representation…

Image and Video Processing · Electrical Eng. & Systems 2024-03-27 Vivek Gopalakrishnan , Jingzhe Ma , Zhiyong Xie

Deep learning has gained great success in various classification tasks. Typically, deep learning models learn underlying features directly from data, and no underlying relationship between classes are included. Similarity between classes…

Computer Vision and Pattern Recognition · Computer Science 2020-09-28 Xueli Xiao , Chunyan Ji , Thosini Bamunu Mudiyanselage , Yi Pan

Concept Activation Vectors (CAVs) offer insights into neural network decision-making by linking human friendly concepts to the model's internal feature extraction process. However, when a new set of CAVs is discovered, they must still be…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Laines Schmalwasser , Jakob Gawlikowski , Joachim Denzler , Julia Niebling

To visualize the regions of interest that classifiers base their decisions on, different Class Activation Mapping (CAM) methods have been developed. However, all of these techniques target categorical classifiers only, though most…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Xinyi Zhang , Johanna Sophie Bieri , Manuel Günther

Deep learning methods have been widely used for Human Activity Recognition (HAR) using recorded signals from Iner-tial Measurement Units (IMUs) sensors that are installed on various parts of the human body. For this type of HAR, sev-eral…

Machine Learning · Computer Science 2025-02-10 Saeed Arabzadeh , Farshad Almasganj , Mohammad Mahdi Ahmadi