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Related papers: Refining Time Series Anomaly Detectors using Large…

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Efficient anomaly detection and diagnosis in multivariate time-series data is of great importance for modern industrial applications. However, building a system that is able to quickly and accurately pinpoint anomalous observations is a…

Machine Learning · Computer Science 2022-05-17 Shreshth Tuli , Giuliano Casale , Nicholas R. Jennings

Inspired by the success of large language models (LLMs) in natural language processing, recent research has explored the building of time series foundation models and applied them to tasks such as forecasting, classification, and anomaly…

Machine Learning · Computer Science 2025-06-04 Chihiro Maru , Shoetsu Sato

The automatic generation of representative natural language descriptions for observable patterns in time series data enhances interpretability, simplifies analysis and increases cross-domain utility of temporal data. While pre-trained…

Computation and Language · Computer Science 2025-01-06 Mohamed Trabelsi , Aidan Boyd , Jin Cao , Huseyin Uzunalioglu

System log anomaly detection is critical for maintaining the reliability of large-scale software systems, yet traditional methods struggle with the heterogeneous and evolving nature of modern log data. Recent advances in Large Language…

Machine Learning · Computer Science 2026-04-15 Disha Patel

This paper introduces a scalable Anomaly Detection Service with a generalizable API tailored for industrial time-series data, designed to assist Site Reliability Engineers (SREs) in managing cloud infrastructure. The service enables…

Machine Learning · Computer Science 2025-01-29 Nimesh Jha , Shuxin Lin , Srideepika Jayaraman , Kyle Frohling , Christodoulos Constantinides , Dhaval Patel

The rapidly evolving cloud platforms and the escalating complexity of network traffic demand proper network traffic monitoring and anomaly detection to ensure network security and performance. This paper introduces a large language model…

Networking and Internet Architecture · Computer Science 2025-04-28 Ze Yang , Yihong Jin , Juntian Liu , Xinhe Xu , Yihan Zhang , Shuyang Ji

Time series anomaly detection (TSAD) plays a vital role in various domains such as healthcare, networks, and industry. Considering labels are crucial for detection but difficult to obtain, we turn to TSAD with inexact supervision: only…

Machine Learning · Computer Science 2024-01-23 Chen Liu , Shibo He , Haoyu Liu , Shizhong Li

Growth in system complexity increases the need for automated log analysis techniques, such as Log-based Anomaly Detection (LAD). While deep learning (DL) methods have been widely used for LAD, traditional machine learning (ML) techniques…

Software Engineering · Computer Science 2025-06-24 Shan Ali , Chaima Boufaied , Domenico Bianculli , Paula Branco , Lionel Briand

Time-series anomaly detection is an important task and has been widely applied in the industry. Since manual data annotation is expensive and inefficient, most applications adopt unsupervised anomaly detection methods, but the results are…

Machine Learning · Computer Science 2023-01-02 Hong Guo , Yujing Wang , Jieyu Zhang , Zhengjie Lin , Yunhai Tong , Lei Yang , Luoxing Xiong , Congrui Huang

The rapid development of large language models (LLMs) has not only provided numerous opportunities but also presented significant challenges. This becomes particularly evident when LLMs inadvertently generate harmful or toxic content,…

Computation and Language · Computer Science 2024-02-20 Kai Chen , Chunwei Wang , Kuo Yang , Jianhua Han , Lanqing Hong , Fei Mi , Hang Xu , Zhengying Liu , Wenyong Huang , Zhenguo Li , Dit-Yan Yeung , Lifeng Shang , Xin Jiang , Qun Liu

Speech deepfake detection (SDD) focuses on identifying whether a given speech signal is genuine or has been synthetically generated. Existing audio large language model (LLM)-based methods excel in content understanding; however, their…

Sound · Computer Science 2026-02-02 Xiaoxuan Guo , Yuankun Xie , Haonan Cheng , Jiayi Zhou , Jian Liu , Hengyan Huang , Long Ye , Qin Zhang

Multi-Agentic AI systems, powered by large language models (LLMs), are inherently non-deterministic and prone to silent failures such as drift, cycles, and missing details in outputs, which are difficult to detect. We introduce the task of…

Artificial Intelligence · Computer Science 2025-11-07 Divya Pathak , Harshit Kumar , Anuska Roy , Felix George , Mudit Verma , Pratibha Moogi

Time Series Anomaly Detection (TSAD) finds widespread applications across various domains such as financial markets, industrial production, and healthcare. Its primary objective is to learn the normal patterns of time series data, thereby…

Machine Learning · Computer Science 2024-07-01 Yutong Chen , Hongzuo Xu , Guansong Pang , Hezhe Qiao , Yuan Zhou , Mingsheng Shang

The robust causal capability of Multimodal Large Language Models (MLLMs) hold the potential of detecting defective objects in Industrial Anomaly Detection (IAD). However, most traditional IAD methods lack the ability to provide multi-turn…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Zewen Li , Zitong Yu , Qilang Ye , Weicheng Xie , Wei Zhuo , Linlin Shen

Sign spotting, the task of identifying and localizing individual signs within continuous sign language video, plays a pivotal role in scaling dataset annotations and addressing the severe data scarcity issue in sign language translation.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 JianHe Low , Ozge Mercanoglu Sincan , Richard Bowden

Large Language Models (LLMs) are transforming artificial intelligence, enabling autonomous agents to perform diverse tasks across various domains. These agents, proficient in human-like text comprehension and generation, have the potential…

Artificial Intelligence · Computer Science 2024-04-10 Saikat Barua

Identifying anomalies in large multi-dimensional time series is a crucial and difficult task across multiple domains. Few methods exist in the literature that address this task when some of the variables are categorical in nature. We…

Machine Learning · Computer Science 2022-04-25 Matthew Horak , Sowmya Chandrasekaran , Giovanni Tobar

Time-series anomaly detection plays a central role across a wide range of application domains. With the increasing proliferation of the Internet of Things (IoT) and smart manufacturing, time-series data has dramatically increased in both…

Machine Learning · Computer Science 2025-10-13 Yuan-Cheng Yu , Yen-Chieh Ouyang , Chun-An Lin

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…

Machine Learning · Computer Science 2024-03-06 Ijaz Ul Haq , Byung Suk Lee , Donna M. Rizzo

Anomaly detection on attributed graphs plays an essential role in applications such as fraud detection, intrusion monitoring, and misinformation analysis. However, text-attributed graphs (TAGs), in which node information is expressed in…