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Reconstruction error-based neural architectures constitute a classical deep learning approach to anomaly detection which has shown great performances. It consists in training an Autoencoder to reconstruct a set of examples deemed to…

机器学习 · 计算机科学 2024-06-06 Fabrizio Angiulli , Fabio Fassetti , Luca Ferragina

Automated surface-anomaly detection using machine learning has become an interesting and promising area of research, with a very high and direct impact on the application domain of visual inspection. Deep-learning methods have become the…

计算机视觉与模式识别 · 计算机科学 2019-06-12 Domen Tabernik , Samo Šela , Jure Skvarč , Danijel Skočaj

Deep learning based methods have seen a massive rise in popularity for hyperspectral image classification over the past few years. However, the success of deep learning is attributed greatly to numerous labeled samples. It is still very…

计算机视觉与模式识别 · 计算机科学 2021-06-30 Bing Liu , Anzhu Yu , Pengqiang Zhang , Lei Ding , Wenyue Guo , Kuiliang Gao , Xibing Zuo

Semi-supervised anomaly detection for sensor signals is critical in ensuring system reliability in smart manufacturing. However, existing methods rely heavily on data correlation, neglecting causality and leading to potential…

机器学习 · 计算机科学 2024-05-17 Xiangwei Chen , Ruliang Xiaoa , Zhixia Zeng , Zhipeng Qiu , Shi Zhang , Xin Du

Learning from noisy labels (LNL) is a challenge that arises in many real-world scenarios where collected training data can contain incorrect or corrupted labels. Most existing solutions identify noisy labels and adopt active learning to…

机器学习 · 计算机科学 2025-04-07 Bo Yuan , Yulin Chen , Yin Zhang , Wei Jiang

Active learning is the iterative construction of a classification model through targeted labeling, enabling significant labeling cost savings. As most research on active learning has been carried out before transformer-based language models…

计算与语言 · 计算机科学 2022-03-22 Christopher Schröder , Andreas Niekler , Martin Potthast

Surface anomaly classification is critical for manufacturing system fault diagnosis and quality control. However, the following challenges always hinder accurate anomaly classification in practice: (i) Anomaly patterns exhibit intra-class…

机器学习 · 统计学 2025-02-18 Xuanming Cao , Chengyu Tao , Juan Du

From a safety perspective, a machine learning method embedded in real-world applications is required to distinguish irregular situations. For this reason, there has been a growing interest in the anomaly detection (AD) task. Since we cannot…

机器学习 · 计算机科学 2021-04-21 JuneKyu Park , Jeong-Hyeon Moon , Namhyuk Ahn , Kyung-Ah Sohn

In anomaly detection (AD), one seeks to identify whether a test sample is abnormal, given a data set of normal samples. A recent and promising approach to AD relies on deep generative models, such as variational autoencoders (VAEs), for…

机器学习 · 计算机科学 2021-11-05 Tal Daniel , Thanard Kurutach , Aviv Tamar

Class imbalance severely impacts machine learning performance on minority classes in real-world applications. While various solutions exist, active learning offers a fundamental fix by strategically collecting balanced, informative labeled…

机器学习 · 计算机科学 2025-06-13 Shyam Nuggehalli , Jifan Zhang , Lalit Jain , Robert Nowak

We introduce a new semi-supervised, time series anomaly detection algorithm that uses deep reinforcement learning (DRL) and active learning to efficiently learn and adapt to anomalies in real-world time series data. Our model - called RLAD…

机器学习 · 计算机科学 2021-04-02 Tong Wu , Jorge Ortiz

Active learning seeks to achieve strong performance with fewer training samples. It does this by iteratively asking an oracle to label new selected samples in a human-in-the-loop manner. This technique has gained increasing popularity due…

机器学习 · 计算机科学 2024-07-16 Dongyuan Li , Zhen Wang , Yankai Chen , Renhe Jiang , Weiping Ding , Manabu Okumura

This paper presents a simple yet effective method for anomaly detection. The main idea is to learn small perturbations to perturb normal data and learn a classifier to classify the normal data and the perturbed data into two different…

机器学习 · 计算机科学 2023-02-07 Jinyu Cai , Jicong Fan

Anomaly detection on attributed networks attracts considerable research interests due to wide applications of attributed networks in modeling a wide range of complex systems. Recently, the deep learning-based anomaly detection methods have…

机器学习 · 计算机科学 2021-05-07 Yixin Liu , Zhao Li , Shirui Pan , Chen Gong , Chuan Zhou , George Karypis

Modern computing and communication technologies can make data collection procedures very efficient. However, our ability to analyze large data sets and/or to extract information out from them is hard-pressed to keep up with our capacities…

机器学习 · 统计学 2019-01-30 Zhanfeng Wang , Yumi Kwon , Yuan-chin Ivan Chang

Anomaly detection, a.k.a. outlier detection or novelty detection, has been a lasting yet active research area in various research communities for several decades. There are still some unique problem complexities and challenges that require…

机器学习 · 计算机科学 2020-12-08 Guansong Pang , Chunhua Shen , Longbing Cao , Anton van den Hengel

Active learning aims to identify the most informative data from an unlabeled data pool that enables a model to reach the desired accuracy rapidly. This benefits especially deep neural networks which generally require a huge number of…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Jihyo Kim , Jeonghyeon Kim , Sangheum Hwang

Deep learning methodologies have been employed in several different fields, with an outstanding success in image recognition applications, such as material quality control, medical imaging, autonomous driving, etc. Deep learning models rely…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Saul Calderon-Ramirez , Shengxiang Yang , David Elizondo

Anomaly detection is widely applied in a variety of domains, involving for instance, smart home systems, network traffic monitoring, IoT applications and sensor networks. In this paper, we study deep reinforcement learning based active…

机器学习 · 计算机科学 2019-08-29 Chen Zhong , M. Cenk Gursoy , Senem Velipasalar

Deep neural networks (DNN) can achieve high performance when applied to In-Distribution (ID) data which come from the same distribution as the training set. When presented with anomaly inputs not from the ID, the outputs of a DNN should be…

机器学习 · 计算机科学 2021-10-08 Fangzhen Zhao , Chenyi Zhang , Naipeng Dong , Zefeng You , Zhenxin Wu