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Time series forecasting is crucial for various applications, such as weather forecasting, power load forecasting, and financial analysis. In recent studies, MLP-mixer models for time series forecasting have been shown as a promising…

机器学习 · 计算机科学 2024-12-24 Md Mahmuddun Nabi Murad , Mehmet Aktukmak , Yasin Yilmaz

Anomaly detection has many important applications, such as monitoring industrial equipment. Despite recent advances in anomaly detection with deep-learning methods, it is unclear how existing solutions would perform under…

声音 · 计算机科学 2022-04-06 Bingqing Chen , Luca Bondi , Samarjit Das

Time-series anomaly detection plays a vital role in monitoring complex operation conditions. However, the detection accuracy of existing approaches is heavily influenced by pattern distribution, existence of multiple normal patterns,…

机器学习 · 计算机科学 2022-02-08 Min Hu , Yi Wang , Xiaowei Feng , Shengchen Zhou , Zhaoyu Wu , Yuan Qin

Today's cyber-world is vastly multivariate. Metrics collected at extreme varieties demand multivariate algorithms to properly detect anomalies. However, forecast-based algorithms, as widely proven approaches, often perform sub-optimally or…

机器学习 · 计算机科学 2022-01-14 Lan Wang , Yusan Lin , Yuhang Wu , Huiyuan Chen , Fei Wang , Hao Yang

The surge in real-time data collection across various industries has underscored the need for advanced anomaly detection in both univariate and multivariate time series data. This paper introduces TransNAS-TSAD, a framework that synergizes…

机器学习 · 计算机科学 2024-03-06 Ijaz Ul Haq , Byung Suk Lee , Donna M. Rizzo

Recent studies on visual anomaly detection (AD) of industrial objects/textures have achieved quite good performance. They consider an unsupervised setting, specifically the one-class setting, in which we assume the availability of a set of…

计算机视觉与模式识别 · 计算机科学 2023-07-10 Jie Zhang , Masanori Suganuma , Takayuki Okatani

A robust and efficient anomaly detection technique is proposed, capable of dealing with crowded scenes where traditional tracking based approaches tend to fail. Initial foreground segmentation of the input frames confines the analysis to…

计算机视觉与模式识别 · 计算机科学 2013-04-04 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Jian Shi , Ni Zhang

Anomaly detection (AD) is a crucial machine learning task that aims to learn patterns from a set of normal training samples to identify abnormal samples in test data. Most existing AD studies assume that the training and test data are drawn…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Tri Cao , Jiawen Zhu , Guansong Pang

The vision-language model has brought great improvement to few-shot industrial anomaly detection, which usually needs to design of hundreds of prompts through prompt engineering. For automated scenarios, we first use conventional prompt…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Xiaofan Li , Zhizhong Zhang , Xin Tan , Chengwei Chen , Yanyun Qu , Yuan Xie , Lizhuang Ma

With the widespread availability of sensor data across industrial and operational systems, we frequently encounter heterogeneous time series from multiple systems. Anomaly detection is crucial for such systems to facilitate predictive…

机器学习 · 计算机科学 2025-04-22 Sarah Alnegheimish , Zelin He , Matthew Reimherr , Akash Chandrayan , Abhinav Pradhan , Luca D'Angelo

Anomaly detection, the task of identifying unusual samples in data, often relies on a large set of training samples. In this work, we consider the setting of few-shot anomaly detection in images, where only a few images are given at…

计算机视觉与模式识别 · 计算机科学 2021-04-30 Shelly Sheynin , Sagie Benaim , Lior Wolf

Time series anomaly detection (TSAD) plays a crucial role in various industries by identifying atypical patterns that deviate from standard trends, thereby maintaining system integrity and enabling prompt response measures. Traditional TSAD…

计算与语言 · 计算机科学 2024-05-27 Jun Liu , Chaoyun Zhang , Jiaxu Qian , Minghua Ma , Si Qin , Chetan Bansal , Qingwei Lin , Saravan Rajmohan , Dongmei Zhang

This study presents a novel time series prediction model, FPN-fusion, designed with linear computational complexity, demonstrating superior predictive performance compared to DLiner without increasing parameter count or computational…

机器学习 · 计算机科学 2024-06-12 Chu Li , Pingjia Xiao , Qiping Yuan

Unsupervised anomaly detection (AD) methods typically assume clean training data, yet real-world datasets often contain undetected or mislabeled anomalies, leading to significant performance degradation. Existing solutions require access to…

机器学习 · 计算机科学 2026-01-30 Sukanya Patra , Souhaib Ben Taieb

In this paper, we introduce Masked Anomaly Detection (MAD), a general self-supervised learning task for multivariate time series anomaly detection. With the increasing availability of sensor data from industrial systems, being able to…

机器学习 · 计算机科学 2022-10-04 Yiwei Fu , Feng Xue

Few-shot anomaly detection (FSAD) methods identify anomalous regions with few known normal samples. Most existing methods rely on the generalization ability of pre-trained vision-language models (VLMs) to recognize potentially anomalous…

计算机视觉与模式识别 · 计算机科学 2025-10-31 Yuanting Fan , Jun Liu , Xiaochen Chen , Bin-Bin Gao , Jian Li , Yong Liu , Jinlong Peng , Chengjie Wang

Anomaly detection is an important task for complex systems (e.g., industrial facilities, manufacturing, large-scale science experiments), where failures in a sub-system can lead to low yield, faulty products, or even damage to components.…

机器学习 · 计算机科学 2023-09-06 Ryan Humble , Zhe Zhang , Finn O'Shea , Eric Darve , Daniel Ratner

Anomaly detection, which aims to identify anomalies deviating from normal patterns, is challenging due to the limited amount of normal data available. Unlike most existing unified methods that rely on carefully designed image feature…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Jiawei Liu , Jiahe Hou , Wei Wang , Jinsong Du , Yang Cong , Huijie Fan

One main challenge in time series anomaly detection for industrial IoT lies in the complex spatio-temporal couplings within multivariate data. However, traditional anomaly detection methods focus on modeling spatial or temporal dependencies…

机器学习 · 计算机科学 2025-09-30 Tao Yin , Xiaohong Zhang , Shaochen Fu , Zhibin Zhang , Li Huang , Yiyuan Yang , Kaixiang Yang , Meng Yan