English
Related papers

Related papers: Spatially-weighted Anomaly Detection with Regressi…

200 papers

Region sampling or weighting is significantly important to the success of modern region-based object detectors. Unlike some previous works, which only focus on "hard" samples when optimizing the objective function, we argue that sample…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Qi Cai , Yingwei Pan , Yu Wang , Jingen Liu , Ting Yao , Tao Mei

Many anomaly detection approaches, especially deep learning methods, have been recently developed to identify abnormal image morphology by only employing normal images during training. Unfortunately, many prior anomaly detection methods…

The increasing digitization of medical imaging enables machine learning based improvements in detecting, visualizing and segmenting lesions, easing the workload for medical experts. However, supervised machine learning requires reliable…

Image and Video Processing · Electrical Eng. & Systems 2024-12-03 Maximilian E. Tschuchnig , Michael Gadermayr

Recently anomaly detection has drawn much attention in diagnosing ocular diseases. Most existing anomaly detection research in fundus images has relatively large anomaly scores in the salient retinal structures, such as blood vessels,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Jingqi Niu , Shiwen Dong , Qinji Yu , Kang Dang , Xiaowei Ding

The robustness and anomaly detection capability of neural networks are crucial topics for their safe adoption in the real-world. Moreover, the over-parameterization of recent networks comes with high computational costs and raises questions…

Machine Learning · Computer Science 2022-07-12 Morgane Ayle , Bertrand Charpentier , John Rachwan , Daniel Zügner , Simon Geisler , Stephan Günnemann

We develop a new robust geographically weighted regression method in the presence of outliers. We embed the standard geographically weighted regression in robust objective function based on $\gamma$-divergence. A novel feature of the…

Methodology · Statistics 2021-10-15 Shonosuke Sugasawa , Daisuke Murakami

Although unsupervised generative modeling of an image dataset using a Variational AutoEncoder (VAE) has been used to detect anomalous images, or anomalous regions in images, recent works have shown that this method often identifies images…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 David Dehaene , Pierre Eline

Anomaly detection is important in many real-life applications. Recently, self-supervised learning has greatly helped deep anomaly detection by recognizing several geometric transformations. However these methods lack finer features, usually…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Loic Jezequel , Ngoc-Son Vu , Jean Beaudet , Aymeric Histace

High-dimensional feature spaces in particle physics events pose a fundamental challenge to density-estimation-based weakly supervised anomaly detection, whose fidelity degrades rapidly with an increasing number of dimensions. We propose a…

High Energy Physics - Phenomenology · Physics 2026-03-30 Runze Li , Benjamin Nachman , Dennis Noll

Generative models based on variational autoencoders are a popular technique for detecting anomalies in images in a semi-supervised context. A common approach employs the anomaly score to detect the presence of anomalies, and it is known to…

Machine Learning · Computer Science 2024-07-30 Muhammad Rashid , Elvio Amparore , Enrico Ferrari , Damiano Verda

Anomaly detection for time-series data has been an important research field for a long time. Seminal work on anomaly detection methods has been focussing on statistical approaches. In recent years an increasing number of machine learning…

Machine Learning · Computer Science 2020-04-02 Mohammad Braei , Sebastian Wagner

Anomaly detection is a fundamental problem in computer vision area with many real-world applications. Given a wide range of images belonging to the normal class, emerging from some distribution, the objective of this task is to construct…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Chengwei Chen , Pan Chen , Haichuan Song , Yiqing Tao , Yuan Xie , Shouhong Ding , Lizhuang Ma

Visual sensory anomaly detection (AD) is an essential problem in computer vision, which is gaining momentum recently thanks to the development of AI for good. Compared with semantic anomaly detection which detects anomaly at the label level…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Xi Jiang , Guoyang Xie , Jinbao Wang , Yong Liu , Chengjie Wang , Feng Zheng , Yaochu Jin

Anomaly detection in videos refers to the identification of events that do not conform to expected behavior. However, almost all existing methods tackle the problem by minimizing the reconstruction errors of training data, which cannot…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 Wen Liu , Weixin Luo , Dongze Lian , Shenghua Gao

In line with the development of Industry 4.0, surface defect detection/anomaly detection becomes a topical subject in the industry field. Improving efficiency as well as saving labor costs has steadily become a matter of great concern in…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Yajie Cui , Zhaoxiang Liu , Shiguo Lian

Spatial regression is widely used for modeling the relationship between a dependent variable and explanatory covariates. Oftentimes, the linear relationships vary across space, when some covariates have location-specific effects on the…

Methodology · Statistics 2020-12-18 Xin Wang , Zhengyuan Zhu , Hao Helen Zhang

The inability of state-of-the-art semantic segmentation methods to detect anomaly instances hinders them from being deployed in safety-critical and complex applications, such as autonomous driving. Recent approaches have focused on either…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Giancarlo Di Biase , Hermann Blum , Roland Siegwart , Cesar Cadena

Anomalies are samples that significantly deviate from the rest of the data and their detection plays a major role in building machine learning models that can be reliably used in applications such as data-driven design and novelty…

Machine Learning · Statistics 2023-06-19 Amin Yousefpour , Mehdi Shishehbor , Zahra Zanjani Foumani , Ramin Bostanabad

Industrial image anomaly detection under the setting of one-class classification has significant practical value. However, most existing models struggle to extract separable feature representations when performing feature embedding and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Minghui Yang , Jing Liu , Zhiwei Yang , Zhaoyang Wu

Due to the issue that existing wireless sensor network (WSN)-based anomaly detection methods only consider and analyze temporal features, in this paper, a self-supervised learning-based anomaly node detection method based on an autoencoder…

Machine Learning · Computer Science 2022-12-29 Miao Ye , Qinghao Zhang , Xingsi Xue , Yong Wang , Qiuxiang Jiang , Hongbing Qiu
‹ Prev 1 3 4 5 6 7 10 Next ›