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Related papers: LUNAR: Unsupervised LLM-based Log Parsing

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Scaling training data and model parameters has long driven progress in large language models (LLMs), but this paradigm is increasingly constrained by the scarcity of high-quality data and diminishing returns from rising computational costs.…

Computation and Language · Computer Science 2026-05-18 Changyue Wang , Weihang Su , Qingyao Ai , Yiqun Liu

Automated log analysis is crucial to ensure high availability and reliability of complex systems. The advent of LLMs in NLP has ushered in a new era of language model-driven automated log analysis, garnering significant interest. Within…

Software Engineering · Computer Science 2025-01-22 Lipeng Ma , Weidong Yang , Yixuan Li , Ben Fei , Mingjie Zhou , Shuhao Li , Sihang Jiang , Bo Xu , Yanghua Xiao

Log parsing is a fundamental step for automated log analysis, which transforms raw log messages into structured formats. Existing syntax-based parsers struggle with complex logs because they lack semantic reasoning ability. Emerging…

Software Engineering · Computer Science 2026-05-26 Shiwen Shan , Yintong Huo , Minxing Wang , Zhiying Wu , Yuxin Su , Zibin Zheng

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

Software systems log massive amounts of data, recording important runtime information. Such logs are used, for example, for log-based anomaly detection, which aims to automatically detect abnormal behaviors of the system under analysis by…

Software Engineering · Computer Science 2024-08-20 Zanis Ali Khan , Donghwan Shin , Domenico Bianculli , Lionel Briand

Spoken language understanding (SLU) tasks involve diverse skills that probe the information extraction, classification and/or generation capabilities of models. In this setting, task-specific training data may not always be available. While…

Computation and Language · Computer Science 2025-10-06 Neeraj Agrawal , Sriram Ganapathy

Large Language Models (LLMs) have become a focal point of research across various domains, including software engineering, where their capabilities are increasingly leveraged. Recent studies have explored the integration of LLMs into…

Software Engineering · Computer Science 2024-10-14 Yi Wen Heng , Zeyang Ma , Zhenhao Li , Dong Jae Kim , Tse-Hsun , Chen

In modern IT systems and computer networks, real-time and offline event log analysis is a crucial part of cyber security monitoring. In particular, event log analysis techniques are essential for the timely detection of cyber attacks and…

Cryptography and Security · Computer Science 2025-04-15 Risto Vaarandi , Hayretdin Bahsi

Modern computing systems, such as HDFS and Spark, produce vast quantities of logs that developers use for tasks like anomaly detection and error analysis. To simplify log analysis, template generation methods have been proposed to…

Databases · Computer Science 2025-08-14 Fei Teng , Haoyang Li , Lei Chen

Event log analysis is an important task that security professionals undertake. Event logs record key information on activities that occur on computing devices, and due to the substantial number of events generated, they consume a large…

Artificial Intelligence · Computer Science 2025-02-04 Siraaj Akhtar , Saad Khan , Simon Parkinson

Human Activity Recognition (HAR) using Inertial Measurement Unit (IMU) sensors is critical for applications in healthcare, safety, and industrial production. However, variations in activity patterns, device types, and sensor placements…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Hua Yan , Heng Tan , Yi Ding , Pengfei Zhou , Vinod Namboodiri , Yu Yang

Recent claims of strong performance by Large Language Models (LLMs) on causal discovery are undermined by a key flaw: many evaluations rely on benchmarks likely included in pretraining corpora. Thus, apparent success suggests that LLM-only…

With increasing scale and complexity of cloud operations, automated detection of anomalies in monitoring data such as logs will be an essential part of managing future IT infrastructures. However, many methods based on artificial…

Machine Learning · Computer Science 2021-11-29 Thorsten Wittkopp , Philipp Wiesner , Dominik Scheinert , Alexander Acker

Logging is a critical function in modern distributed applications, but the lack of standardization in log query languages and formats creates significant challenges. Developers currently must write ad hoc queries in platform-specific…

The advent of Large Language Models (LLMs) has provided unprecedented capabilities for analyzing unstructured text data. However, deploying these models as reliable, robust, and scalable classifiers in production environments presents…

Computation and Language · Computer Science 2025-08-25 Doohee You , Andy Parisi , Zach Vander Velden , Lara Dantas Inojosa

Due to the sheer size of software logs, developers rely on automated log analysis. Log parsing, which parses semi-structured logs into a structured format, is a prerequisite of automated log analysis. However, existing log parsers are…

Software Engineering · Computer Science 2026-03-16 Yifan Wu , Bingxu Chai , Siyu Yu , Ying Li , Pinjia He , Wei Jiang , Jianguo Li

Logs provide first-hand information for engineers to diagnose failures in large-scale online service systems. Log parsing, which transforms semi-structured raw log messages into structured data, is a prerequisite of automated log analysis…

Software Engineering · Computer Science 2022-02-15 Yudong Liu , Xu Zhang , Shilin He , Hongyu Zhang , Liqun Li , Yu Kang , Yong Xu , Minghua Ma , Qingwei Lin , Yingnong Dang , Saravan Rajmohan , Dongmei Zhang

The use of LLMs for natural language processing has become a popular trend in the past two years, driven by their formidable capacity for context comprehension and learning, which has inspired a wave of research from academics and industry…

Computation and Language · Computer Science 2024-04-09 Faren Yan , Peng Yu , Xin Chen

Large-scale software systems generate vast volumes of system logs that are essential for monitoring, diagnosing, and performance optimization. However, the unstructured nature and ever-growing scale of these logs present significant…

Software Engineering · Computer Science 2025-04-04 Shu-Wei Huang , Xingfang Wu , Heng Li

Anomaly detection often relies on supervised or clustering approaches, with limited success in specialized domains like automotive communication systems where scalable solutions are essential. We propose a novel decoder-only Large Language…

Machine Learning · Computer Science 2025-07-03 Bogdan Bogdan , Arina Cazacu , Laura Vasilie