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Time series anomaly detection plays a critical role in many dynamic systems. Despite its importance, previous approaches have primarily relied on unimodal numerical data, overlooking the importance of complementary information from other…

Machine Learning · Computer Science 2026-03-24 Shiyan Hu , Jianxin Jin , Yang Shu , Peng Chen , Bin Yang , Chenjuan Guo

Traditional deep learning models often lack annotated data, especially in cross-domain applications such as anomaly detection, which is critical for early disease diagnosis in medicine and defect detection in industry. To address this…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Wahyu Rahmaniar , Kenji Suzuki

Video reasoning has emerged as a critical capability for multimodal large language models (MLLMs), requiring models to move beyond static perception toward coherent understanding of temporal dynamics in complex scenes. Yet existing MLLMs…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Sicheng Tao , Jungang Li , Yibo Yan , Junyan Zhang , Yubo Gao , Hanqian Li , ShuHang Xun , Yuxuan Fan , Hong Chen , Jianxiang He , Xuming Hu

Generative Large Language Models (LLMs) show potential in data analysis, yet their full capabilities remain uncharted. Our work explores the capabilities of LLMs for creating and refining visualizations via conversational interfaces. We…

Human-Computer Interaction · Computer Science 2023-11-10 Matt-Heun Hong , Anamaria Crisan

Time series anomaly detection (TSAD) has been a research hotspot in both academia and industry in recent years. Deep learning methods have become the mainstream research direction due to their excellent performance. However, new viewpoints…

Machine Learning · Computer Science 2024-12-10 Pengyu Li , Zhijie Zhong , Tong Zhang , Zhiwen Yu , C. L. Philip Chen , Kaixiang Yang

Anomaly detection tools and methods enable key analytical capabilities in modern cyberphysical and sensor-based systems. Despite the fast-paced development in deep learning architectures for anomaly detection, model optimization for a given…

Neural and Evolutionary Computing · Computer Science 2024-04-12 Marcin Pietroń , Dominik Żurek , Kamil Faber , Roberto Corizzo

Large Language Models (LLMs) remain vulnerable to jailbreaking attacks where adversarial prompts elicit harmful outputs. Yet most evaluations focus on single-turn interactions while real-world attacks unfold through adaptive multi-turn…

Computation and Language · Computer Science 2025-12-23 Aashray Reddy , Andrew Zagula , Nicholas Saban

Vision-language models (VLMs) such as CLIP exhibit strong Out-of-distribution (OOD) detection capabilities by aligning visual and textual representations. Recent CLIP-based test-time adaptation methods further improve detection performance…

Computation and Language · Computer Science 2026-04-20 Jinlun Ye , Jiang Liao , Runhe Lai , Xinhua Lu , Jiaxin Zhuang , Zhiyong Gan , Ruixuan Wang

Video Anomaly Detection~(VAD) focuses on identifying anomalies within videos. Supervised methods require an amount of in-domain training data and often struggle to generalize to unseen anomalies. In contrast, training-free methods leverage…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Yihua Shao , Haojin He , Sijie Li , Siyu Chen , Xinwei Long , Fanhu Zeng , Yuxuan Fan , Muyang Zhang , Ziyang Yan , Ao Ma , Xiaochen Wang , Hao Tang , Yan Wang , Shuyan Li

The anomaly detection of time series is a hotspot of time series data mining. The own characteristics of different anomaly detectors determine the abnormal data that they are good at. There is no detector can be optimizing in all types of…

Machine Learning · Statistics 2019-07-19 Hui Ye , Xiaopeng Ma , Qingfeng Pan , Huaqiang Fang , Hang Xiang , Tongzhen Shao

Massive key performance indicators (KPIs) are monitored as multivariate time series data (MTS) to ensure the reliability of the software applications and service system. Accurately detecting the abnormality of MTS is very critical for…

Machine Learning · Computer Science 2023-08-28 Haotian Si , Changhua Pei , Zhihan Li , Yadong Zhao , Jingjing Li , Haiming Zhang , Zulong Diao , Jianhui Li , Gaogang Xie , Dan Pei

Identifying anomalous human spatial trajectory patterns can indicate dynamic changes in mobility behavior with applications in domains like infectious disease monitoring and elderly care. Recent advancements in large language models (LLMs)…

Machine Learning · Computer Science 2023-10-10 Zheng Zhang , Hossein Amiri , Zhenke Liu , Andreas Züfle , Liang Zhao

When applying pre-trained large language models (LLMs) to address anomaly detection tasks, the multivariate time series (MTS) modality of anomaly detection does not align with the text modality of LLMs. Existing methods simply transform the…

Computation and Language · Computer Science 2025-04-15 Wei Tao , Xiaoyang Qu , Kai Lu , Jiguang Wan , Guokuan Li , Jianzong Wang

Large Language Models (LLMs) tend to generate a long reasoning chain when solving complex tasks. However, as the reasoning chain extends, critical intermediate steps and the original prompt will be buried in the context, receiving…

Computation and Language · Computer Science 2026-03-30 Hongxiang Zhang , Yuan Tian , Tianyi Zhang

Eye-tracking data reveals valuable insights into users' cognitive states but is difficult to analyze due to its structured, non-linguistic nature. While large language models (LLMs) excel at reasoning over text, they struggle with temporal…

Human-Computer Interaction · Computer Science 2025-07-25 Dongyang Guo , Yasmeen Abdrabou , Enkeleda Thaqi , Enkelejda Kasneci

Anomaly detection on attributed graphs plays an essential role in applications such as fraud detection, intrusion monitoring, and misinformation analysis. However, text-attributed graphs (TAGs), in which node information is expressed in…

Time series anomaly detection (TSAD) finds many applications such as monitoring environmental sensors, industry KPIs, patient biomarkers, etc. A two-fold challenge for TSAD is a versatile and unsupervised model that can detect various…

Machine Learning · Computer Science 2025-05-07 Boje Deforce , Meng-Chieh Lee , Bart Baesens , Estefanía Serral Asensio , Jaemin Yoo , Leman Akoglu

In previous work, we have proposed the Audio-Visual Scene-Aware Dialog (AVSD) task, collected an AVSD dataset, developed AVSD technologies, and hosted an AVSD challenge track at both the 7th and 8th Dialog System Technology Challenges…

Computation and Language · Computer Science 2021-10-14 Ankit P. Shah , Shijie Geng , Peng Gao , Anoop Cherian , Takaaki Hori , Tim K. Marks , Jonathan Le Roux , Chiori Hori

The integration of Computer-Aided Diagnosis (CAD) with Large Language Models (LLMs) presents a promising frontier in clinical applications, notably in automating diagnostic processes akin to those performed by radiologists and providing…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Zihao Zhao , Sheng Wang , Jinchen Gu , Yitao Zhu , Lanzhuju Mei , Zixu Zhuang , Zhiming Cui , Qian Wang , Dinggang Shen

Conversational AI and Large Language Models (LLMs) have become powerful tools across domains, including cybersecurity, where they help detect threats early and improve response times. However, challenges such as false positives and complex…

Machine Learning · Computer Science 2025-09-03 Prasasthy Balasubramanian , Dumindu Kankanamge , Ekaterina Gilman , Mourad Oussalah