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Anomaly detection (AD) aims to identify defective images and localize their defects (if any). Ideally, AD models should be able to detect defects over many image classes; without relying on hard-coded class names that can be uninformative…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Chih-Hui Ho , Kuan-Chuan Peng , Nuno Vasconcelos

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

Large Language Model (LLM) inference systems present significant challenges in statistical performance characterization due to dynamic workload variations, diverse hardware architectures, and complex interactions between model size, batch…

Performance · Computer Science 2025-05-15 Kaustabha Ray , Nelson Mimura Gonzalez , Bruno Wassermann , Rachel Tzoref-Brill , Dean H. Lorenz

With growing public safety demands, text-based person anomaly search has emerged as a critical task, aiming to retrieve individuals with abnormal behaviors via natural language descriptions. Unlike conventional person search, this task…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Hao Ju , Hu Zhang , Zhedong Zheng

Classification tasks are typically handled using Machine Learning (ML) models, which lack a balance between accuracy and interpretability. This paper introduces a new approach for classification tasks using Large Language Models (LLMs) in…

Computation and Language · Computer Science 2025-01-03 Praneeth Vadlapati

Software systems often record important runtime information in logs to help with troubleshooting. Log-based anomaly detection has become a key research area that aims to identify system issues through log data, ultimately enhancing the…

Software Engineering · Computer Science 2025-04-15 Wei Guan , Jian Cao , Shiyou Qian , Jianqi Gao , Chun Ouyang

Data is a crucial element in large language model (LLM) alignment. Recent studies have explored using LLMs for efficient data collection. However, LLM-generated data often suffers from quality issues, with underrepresented or absent aspects…

Computation and Language · Computer Science 2024-10-08 Fei Wang , Ninareh Mehrabi , Palash Goyal , Rahul Gupta , Kai-Wei Chang , Aram Galstyan

Detecting anomalies in business processes is crucial for ensuring operational success. While many existing methods rely on statistical frequency to detect anomalies, it's important to note that infrequent behavior doesn't necessarily imply…

Computation and Language · Computer Science 2025-12-16 Wei Guan , Jian Cao , Jianqi Gao , Haiyan Zhao , Shiyou Qian

Hybrid methods have been shown to outperform pure statistical and pure deep learning methods at both forecasting tasks, and at quantifying the uncertainty associated with those forecasts (prediction intervals). One example is Multivariate…

Machine Learning · Computer Science 2022-02-28 Thabang Mathonsi , Terence L van Zyl

Large Language Models (LLMs) have recently developed new advanced functionalities. Their effectiveness relies on statistical learning and generalization capabilities. However, they face limitations in internalizing the data they process and…

Machine Learning · Computer Science 2026-01-14 Farah Ben Slama , Frédéric Armetta

Machine learning (ML) holds great potential to advance anomaly detection (AD) in chemical processes. However, the development of ML-based methods is hindered by the lack of openly available experimental data. To address this gap, we have…

In the rapidly evolving field of large language models (LLMs), data augmentation (DA) has emerged as a pivotal technique for enhancing model performance by diversifying training examples without the need for additional data collection. This…

Computation and Language · Computer Science 2024-07-03 Bosheng Ding , Chengwei Qin , Ruochen Zhao , Tianze Luo , Xinze Li , Guizhen Chen , Wenhan Xia , Junjie Hu , Anh Tuan Luu , Shafiq Joty

Anomaly detection (AD) is a critical task across domains such as cybersecurity and healthcare. In the unsupervised setting, an effective and theoretically-grounded principle is to train classifiers to distinguish normal data from…

Machine Learning · Statistics 2025-06-18 Matthew Lau , Tian-Yi Zhou , Xiangchi Yuan , Jizhou Chen , Wenke Lee , Xiaoming Huo

Video Anomaly Detection (VAD) is crucial for applications such as security surveillance and autonomous driving. However, existing VAD methods provide little rationale behind detection, hindering public trust in real-world deployments. In…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Yuchen Yang , Kwonjoon Lee , Behzad Dariush , Yinzhi Cao , Shao-Yuan Lo

Anomaly detection is crucial to ensure the security of cyber-physical systems (CPS). However, due to the increasing complexity of CPSs and more sophisticated attacks, conventional anomaly detection methods, which face the growing volume of…

Cryptography and Security · Computer Science 2021-01-20 Yuan Luo , Ya Xiao , Long Cheng , Guojun Peng , Danfeng Daphne Yao

Data serves as the fundamental foundation for advancing deep learning, particularly tabular data presented in a structured format, which is highly conducive to modeling. However, even in the era of LLM, obtaining tabular data from sensitive…

Machine Learning · Computer Science 2024-08-07 Yuxin Wang , Duanyu Feng , Yongfu Dai , Zhengyu Chen , Jimin Huang , Sophia Ananiadou , Qianqian Xie , Hao Wang

Large Language Models (LLMs) have shown remarkable performance in various natural language processing tasks but face challenges in mathematical reasoning, where complex problem-solving requires both linguistic understanding and mathematical…

Computation and Language · Computer Science 2025-03-20 Shuguang Chen , Guang Lin

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 rapid growth of mobile applications has escalated Android malware threats. Although there are numerous detection methods, they often struggle with evolving attacks, dataset biases, and limited explainability. Large Language Models…

Cryptography and Security · Computer Science 2025-04-23 Xingzhi Qian , Xinran Zheng , Yiling He , Shuo Yang , Lorenzo Cavallaro

Anomaly detection on text-rich graphs is widely prevalent in real life, such as detecting incorrectly assigned academic papers to authors and detecting bots in social networks. The remarkable capabilities of large language models (LLMs)…

Computation and Language · Computer Science 2025-08-08 Yunhe Pang , Bo Chen , Fanjin Zhang , Yanghui Rao , Evgeny Kharlamov , Jie Tang