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Related papers: Anomaly Detection of Tabular Data Using LLMs

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With the expanding application of Large Language Models (LLMs) in various domains, it becomes imperative to comprehensively investigate their unforeseen behaviors and consequent outcomes. In this study, we introduce and systematically…

Computation and Language · Computer Science 2024-04-22 Yuxi Li , Yi Liu , Gelei Deng , Ying Zhang , Wenjia Song , Ling Shi , Kailong Wang , Yuekang Li , Yang Liu , Haoyu Wang

Large Language Models (LLMs) have shown promising results on various language and vision tasks. Recently, there has been growing interest in applying LLMs to graph-based tasks, particularly on Text-Attributed Graphs (TAGs). However, most…

Machine Learning · Computer Science 2024-06-10 Zhongmou He , Jing Zhu , Shengyi Qian , Joyce Chai , Danai Koutra

This paper describes the use of neural networks to enhance simulations for subsequent training of anomaly-detection systems. Simulations can provide edge conditions for anomaly detection which may be sparse or non-existent in real-world…

Neural and Evolutionary Computing · Computer Science 2020-11-06 Philip Feldman

Log analysis is a relevant research field in cybersecurity as they can provide a source of information for the detection of threats to networks and systems. This paper presents a pipeline to use fine-tuned Large Language Models (LLMs) for…

Cryptography and Security · Computer Science 2025-07-04 Jorge J. Tejero-Fernández , Alfonso Sánchez-Macián

Self-supervised methods have gained prominence in time series anomaly detection due to the scarcity of available annotations. Nevertheless, they typically demand extensive training data to acquire a generalizable representation map, which…

Machine Learning · Computer Science 2024-01-30 Chen Liu , Shibo He , Qihang Zhou , Shizhong Li , Wenchao Meng

Large Language Models (LLMs) have shown remarkable performance across diverse tasks without domain-specific training, fueling interest in their potential for time-series forecasting. While LLMs have shown potential in zero-shot forecasting…

Machine Learning · Computer Science 2025-06-03 Junwoo Park , Hyuck Lee , Dohyun Lee , Daehoon Gwak , Jaegul Choo

In recent years, large language models (LLMs) have emerged as promising candidates for graph tasks. Many studies leverage natural language to describe graphs and apply LLMs for reasoning, yet most focus narrowly on performance benchmarks…

Machine Learning · Computer Science 2026-01-28 Yuxiang Wang , Xinnan Dai , Wenqi Fan , Yao Ma

Topic modelling, as a well-established unsupervised technique, has found extensive use in automatically detecting significant topics within a corpus of documents. However, classic topic modelling approaches (e.g., LDA) have certain…

Computation and Language · Computer Science 2024-03-27 Yida Mu , Chun Dong , Kalina Bontcheva , Xingyi Song

Large Language Models (LLMs) have shown great potential in Natural Language Processing (NLP) tasks. However, recent literature reveals that LLMs generate nonfactual responses intermittently, which impedes the LLMs' reliability for further…

Computation and Language · Computer Science 2024-03-22 Yukun Zhao , Lingyong Yan , Weiwei Sun , Guoliang Xing , Chong Meng , Shuaiqiang Wang , Zhicong Cheng , Zhaochun Ren , Dawei Yin

Most enterprise applications use logging as a mechanism to diagnose anomalies, which could help with reducing system downtime. Anomaly detection using software execution logs has been explored in several prior studies, using both classical…

Machine Learning · Computer Science 2023-11-01 Nadun Wijesinghe , Hadi Hemmati

Large Language Models (LLMs) are emerging as transformative tools for software vulnerability detection, addressing critical challenges in the security domain. Traditional methods, such as static and dynamic analysis, often falter due to…

Cryptography and Security · Computer Science 2025-02-19 Ze Sheng , Zhicheng Chen , Shuning Gu , Heqing Huang , Guofei Gu , Jeff Huang

Deep Learning (DL) is vulnerable to out-of-distribution and adversarial examples resulting in incorrect outputs. To make DL more robust, several posthoc (or runtime) anomaly detection techniques to detect (and discard) these anomalous…

Machine Learning · Computer Science 2021-02-23 Saikiran Bulusu , Bhavya Kailkhura , Bo Li , Pramod K. Varshney , Dawn Song

In this paper, we demonstrate a surprising capability of large language models (LLMs): given only input feature names and a description of a prediction task, they are capable of selecting the most predictive features, with performance…

Machine Learning · Computer Science 2025-04-21 Daniel P. Jeong , Zachary C. Lipton , Pradeep Ravikumar

This paper explores the potential of Large Language Models(LLMs) in zero-shot anomaly detection for safe visual navigation. With the assistance of the state-of-the-art real-time open-world object detection model Yolo-World and specialized…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Hao Wang , Jiayou Qin , Ashish Bastola , Xiwen Chen , John Suchanek , Zihao Gong , Abolfazl Razi

We propose a new framework for zero-shot generation of synthetic tabular data. Using the large language model (LLM) GPT-4o and plain-language prompting, we demonstrate the ability to generate high-fidelity tabular data without task-specific…

Machine Learning · Computer Science 2025-02-21 Austin A. Barr , Robert Rozman , Eddie Guo

Advanced Persistent Threats (APTs) pose a major cybersecurity challenge due to their stealth and ability to mimic normal system behavior, making detection particularly difficult in highly imbalanced datasets. Traditional anomaly detection…

Cryptography and Security · Computer Science 2025-02-14 Sidahmed Benabderrahmane , Petko Valtchev , James Cheney , Talal Rahwan

Real data often contain anomalous cases, also known as outliers. These may spoil the resulting analysis but they may also contain valuable information. In either case, the ability to detect such anomalies is essential. A useful tool for…

Machine Learning · Statistics 2021-01-13 Peter J. Rousseeuw , Mia Hubert

The ability to predict drug overdose risk from a patient's medical records is crucial for timely intervention and prevention. Traditional machine learning models have shown promise in analyzing longitudinal medical records for this task.…

Artificial Intelligence · Computer Science 2025-04-17 Md Sultan Al Nahian , Chris Delcher , Daniel Harris , Peter Akpunonu , Ramakanth Kavuluru

An anomaly detection method based on deep autoencoders is proposed to address anomalies that often occur in enterprise-level ETL data streams. The study first analyzes multiple types of anomalies in ETL processes, including delays, missing…

Machine Learning · Computer Science 2025-11-04 Xin Chen , Saili Uday Gadgil , Kangning Gao , Yi Hu , Cong Nie

Sensitive information detection is crucial in content moderation to maintain safe online communities. Assisting in this traditionally manual process could relieve human moderators from overwhelming and tedious tasks, allowing them to focus…