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While Multimodal Large Language Models (MLLMs) demonstrate remarkable capabilities across diverse domains, their application to specialized anomaly detection (AD) remains constrained by domain adaptation challenges. Existing Group Relative…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Jingyi Liao , Yongyi Su , Rong-Cheng Tu , Zhao Jin , Wenhao Sun , Yiting Li , Dacheng Tao , Xun Xu , Xulei Yang

Log parsing serves as an essential prerequisite for various log analysis tasks. Recent advancements in this field have improved parsing accuracy by leveraging the semantics in logs through fine-tuning large language models (LLMs) or…

Software Engineering · Computer Science 2024-08-09 Junjie Huang , Zhihan Jiang , Zhuangbin Chen , Michael R. Lyu

Large Language Model (LLM)-based systems present new opportunities for autonomous health monitoring in sensor-rich industrial environments. This study explores the potential of LLMs to detect and classify faults directly from sensor data,…

Artificial Intelligence · Computer Science 2025-09-30 Xian Yeow Lee , Lasitha Vidyaratne , Ahmed Farahat , Chetan Gupta

Hacking and false data injection from adversaries can threaten power grids' everyday operations and cause significant economic loss. Anomaly detection in power grids aims to detect and discriminate anomalies caused by cyber attacks against…

Machine Learning · Computer Science 2023-03-14 Xijuan Sun , Di Wu , Arnaud Zinflou , Benoit Boulet

The advance of Large Language Models (LLMs) has greatly stimulated research interest in developing multi-modal LLM (MLLM)-based visual anomaly detection (VAD) algorithms that can be deployed in complex environments. The challenge is that in…

Machine Learning · Computer Science 2026-03-04 Congjing Zhang , Feng Lin , Xinyi Zhao , Pei Guo , Wei Li , Lin Chen , Chaoyue Zhao , Shuai Huang

In computer security, designing a robust intrusion detection system is one of the most fundamental and important problems. In this paper, we propose a system-call language-modeling approach for designing anomaly-based host intrusion…

Cryptography and Security · Computer Science 2016-11-08 Gyuwan Kim , Hayoon Yi , Jangho Lee , Yunheung Paek , Sungroh Yoon

Anomaly detecting as an important technical in cloud computing is applied to support smooth running of the cloud platform. Traditional detecting methods based on statistic, analysis, etc. lead to the high false-alarm rate due to…

Machine Learning · Computer Science 2019-01-29 Jing Zhang

In industrial settings, the accurate detection of anomalies is essential for maintaining product quality and ensuring operational safety. Traditional industrial anomaly detection (IAD) models often struggle with flexibility and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Zhiling Chen , Hanning Chen , Mohsen Imani , Farhad Imani

Large Language Models (LLMs) have demonstrated strong capabilities in various natural language processing tasks; however, their application to graph-related problems remains limited, primarily due to scalability constraints and the absence…

Machine Learning · Computer Science 2025-05-08 Hyun Lee , Chris Yi , Maminur Islam , B. D. S. Aritra

Anomaly detection is the problem of recognizing abnormal inputs based on the seen examples of normal data. Despite recent advances of deep learning in recognizing image anomalies, these methods still prove incapable of handling complex…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Nina Shvetsova , Bart Bakker , Irina Fedulova , Heinrich Schulz , Dmitry V. Dylov

General-purpose Large Language Models (LLMs) are frequently fine-tuned through supervised fine-tuning (SFT) to enhance performance in specific domains. Better results can be achieved by distilling the chain-of-thought of a larger model at…

Machine Learning · Computer Science 2026-03-24 Andrey Goncharov , Daniil Vyazhev , Petr Sychev , Edvard Khalafyan , Alexey Zaytsev

Recovering the structure of causal graphical models from observational data is an essential yet challenging task for causal discovery in scientific scenarios. Domain-specific causal discovery usually relies on expert validation or prior…

Artificial Intelligence · Computer Science 2025-08-27 Taiyu Ban , Lyuzhou Chen , Derui Lyu , Xiangyu Wang , Qinrui Zhu , Qiang Tu , Huanhuan Chen

The design of safety-critical agents based on large language models (LLMs) requires more than simple prompt engineering. This paper presents a comprehensive information-theoretic analysis of how rule encodings in system prompts influence…

Artificial Intelligence · Computer Science 2025-10-10 Joachim Diederich

The rapid growth of deep learning (DL) has spurred interest in enhancing log-based anomaly detection. This approach aims to extract meaning from log events (log message templates) and develop advanced DL models for anomaly detection.…

Machine Learning · Computer Science 2024-02-01 Lin Yang , Junjie Chen , Shutao Gao , Zhihao Gong , Hongyu Zhang , Yue Kang , Huaan Li

Log anomaly detection using traditional rule based or deep learning based methods is often challenging due to the large volume and highly complex nature of log sequence. So effective way of detection of anomalous sequence of logs is crucial…

Machine Learning · Computer Science 2025-07-16 Isaiah Thompson Ocansey , Ritwik Bhattacharya , Tanmay Sen

A real-time autoencoder-based anomaly detection system using semi-supervised machine learning has been developed for the online Data Quality Monitoring system of the electromagnetic calorimeter of the CMS detector at the CERN LHC. A novel…

Instrumentation and Detectors · Physics 2024-07-31 Abhirami Harilal , Kyungmin Park , Manfred Paulini

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

As large language models (LLMs) often generate plausible but incorrect content, error detection has become increasingly critical to ensure truthfulness. However, existing detection methods often overlook a critical problem we term as…

Computation and Language · Computer Science 2025-09-09 Hexiang Tan , Fei Sun , Sha Liu , Du Su , Qi Cao , Xin Chen , Jingang Wang , Xunliang Cai , Yuanzhuo Wang , Huawei Shen , Xueqi Cheng

Logs are ubiquitous digital footprints, playing an indispensable role in system diagnostics, security analysis, and performance optimization. The extraction of actionable insights from logs is critically dependent on the log parsing…

Software Engineering · Computer Science 2024-08-27 Aoxiao Zhong , Dengyao Mo , Guiyang Liu , Jinbu Liu , Qingda Lu , Qi Zhou , Jiesheng Wu , Quanzheng Li , Qingsong Wen

Recent advances in visual industrial anomaly detection have demonstrated exceptional performance in identifying and segmenting anomalous regions while maintaining fast inference speeds. However, anomaly classification-distinguishing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Sassan Mokhtar , Arian Mousakhan , Silvio Galesso , Jawad Tayyub , Thomas Brox