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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

We develop a new method to detect anomalies within time series, which is essential in many application domains, reaching from self-driving cars, finance, and marketing to medical diagnosis and epidemiology. The method is based on…

Machine Learning · Computer Science 2022-02-22 Tim Schneider , Chen Qiu , Marius Kloft , Decky Aspandi Latif , Steffen Staab , Stephan Mandt , Maja Rudolph

The expansion of Multimodal Large Language Models (MLLMs) and their integration into autonomous agentic workflows has introduced a non-stationary attack surface. Empirical observations indicate that adversaries employ progressive,…

Cryptography and Security · Computer Science 2026-05-20 Doohee You

Cybersecurity breaches in digital substations can pose significant challenges to the stability and reliability of power system operations. To address these challenges, defense and mitigation techniques are required. Identifying and…

Cryptography and Security · Computer Science 2024-06-11 Aydin Zaboli , Seong Lok Choi , Tai-Jin Song , Junho Hong

Anomaly detection (AD) plays a crucial role in various domains, including cybersecurity, finance, and healthcare, by identifying patterns or events that deviate from normal behaviour. In recent years, significant progress has been made in…

Machine Learning · Computer Science 2024-01-24 Hadi Hojjati , Thi Kieu Khanh Ho , Narges Armanfard

Anomaly detection (AD) plays a vital role across a wide range of real-world domains by identifying data instances that deviate from expected patterns, potentially signaling critical events such as system failures, fraudulent activities, or…

Machine Learning · Computer Science 2025-07-11 Amirhossein Sadough , Mahyar Shahsavari , Mark Wijtvliet , Marcel van Gerven

We introduce a new semi-supervised, time series anomaly detection algorithm that uses deep reinforcement learning (DRL) and active learning to efficiently learn and adapt to anomalies in real-world time series data. Our model - called RLAD…

Machine Learning · Computer Science 2021-04-02 Tong Wu , Jorge Ortiz

We propose a novel inference-time out-of-domain (OOD) detection algorithm for specialized large language models (LLMs). Despite achieving state-of-the-art performance on in-domain tasks through fine-tuning, specialized LLMs remain…

Computation and Language · Computer Science 2025-09-17 Ayush Gupta , Ramneet Kaur , Anirban Roy , Adam D. Cobb , Rama Chellappa , Susmit Jha

Since with massive data growth, the need for autonomous and generic anomaly detection system is increased. However, developing one stand-alone generic anomaly detection system that is accurate and fast is still a challenge. In this paper,…

Machine Learning · Computer Science 2018-12-03 Sooyeon Lee , Huy Kang Kim

Text evaluation has historically posed significant challenges, often demanding substantial labor and time cost. With the emergence of large language models (LLMs), researchers have explored LLMs' potential as alternatives for human…

Computation and Language · Computer Science 2023-08-15 Chi-Min Chan , Weize Chen , Yusheng Su , Jianxuan Yu , Wei Xue , Shanghang Zhang , Jie Fu , Zhiyuan Liu

Conversational systems must be robust to user interactions that naturally exhibit diverse conversational traits. Capturing and simulating these diverse traits coherently and efficiently presents a complex challenge. This paper introduces…

Computation and Language · Computer Science 2024-10-29 Rafael Ferreira , David Semedo , João Magalhães

Time-series anomaly detection (TSAD) is a critical component in monitoring complex systems, yet modern deep learning-based detectors are often highly sensitive to localized input corruptions and structured noise. We propose ARTA…

Machine Learning · Computer Science 2026-05-07 Hadi Hojjati , Narges Armanfard

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

Goal-oriented de novo molecule design, namely generating molecules with specific property or substructure constraints, is a crucial yet challenging task in drug discovery. Existing methods, such as Bayesian optimization and reinforcement…

Computational Engineering, Finance, and Science · Computer Science 2025-02-28 Chuanliu Fan , Ziqiang Cao , Zicheng Ma , Nan Yu , Yimin Peng , Jun Zhang , Yiqin Gao , Guohong Fu

Large language models (LLMs) often generate self-contradictory outputs, which severely impacts their reliability and hinders their adoption in practical applications. In video-language models (Video-LLMs), this phenomenon recently draws the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Chengzhi Li , Heyan Huang , Ping Jian , Zhen Yang , Yaning Tian , Zhongbin Guo

Tabular anomaly detection (TAD) remains challenging due to the heterogeneity of tabular data: features lack natural relationships, vary widely in distribution and scale, and exhibit diverse types. Consequently, each TAD method makes…

Machine Learning · Computer Science 2026-05-07 Hangting Ye , He Zhao , Wei Fan , Xiaozhuang Song , Dandan Guo , Yi Chang , Hongyuan Zha

Task-oriented dialogue (TOD) systems are experiencing a revolution driven by Large Language Models (LLMs), yet the evaluation methodologies for these systems remain insufficient for their growing sophistication. While traditional automatic…

Computation and Language · Computer Science 2025-07-17 Emre Can Acikgoz , Carl Guo , Suvodip Dey , Akul Datta , Takyoung Kim , Gokhan Tur , Dilek Hakkani-Tür

A chatbot is an intelligent software application that automates conversations and engages users in natural language through messaging platforms. Leveraging artificial intelligence (AI), chatbots serve various functions, including customer…

Computation and Language · Computer Science 2025-01-03 Lamya Benaddi , Charaf Ouaddi , Adnane Souha , Abdeslam Jakimi , Mohamed Rahouti , Mohammed Aledhari , Diogo Oliveira , Brahim Ouchao

Industrial Anomaly Detection (IAD) is critical for ensuring product quality by identifying defects. Traditional methods such as feature embedding and reconstruction-based approaches require large datasets and struggle with scalability.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Peijian Zeng , Feiyan Pang , Zhanbo Wang , Aimin Yang

Time series anomaly detection is critical for supply chain management to take proactive operations, but faces challenges: classical unsupervised anomaly detection based on exploiting data patterns often yields results misaligned with…

Machine Learning · Computer Science 2026-01-28 Haoting Zhang , Shekhar Jain
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