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相关论文: Towards Multimodal Time Series Anomaly Detection w…

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Weakly supervised temporal action localization (WS-TAL) is a challenging task that aims to localize action instances in the given video with video-level categorical supervision. Both appearance and motion features are used in previous…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Fa-Ting Hong , Jia-Chang Feng , Dan Xu , Ying Shan , Wei-Shi Zheng

Multi-modal language model has made advanced progress in vision and audio, but still faces significant challenges in dealing with complex reasoning tasks in the time series domain. The reasons are twofold. First, labels for multi-modal time…

机器学习 · 计算机科学 2025-03-10 Haochuan Zhang , Chunhua Yang , Jie Han , Liyang Qin , Xiaoli Wang

Detecting anomalies in the data collected by WSNs can provide crucial evidence for assessing the reliability and stability of WSNs. Existing methods for WSN anomaly detection often face challenges such as the limited extraction of…

机器学习 · 计算机科学 2025-06-03 Miao Ye , Suxiao Wang , Jiaguang Han , Yong Wang , Xiaoli Wang , Jingxuan Wei , Peng Wen , Jing Cui

Time series anomaly detection (TSAD) plays a vital role in many industrial applications. While contrastive learning has gained momentum in the time series domain for its prowess in extracting meaningful representations from unlabeled data,…

机器学习 · 计算机科学 2025-01-28 Katrina Chen , Mingbin Feng , Tony S. Wirjanto

Conventional time series classification approaches based on bags of patterns or shapelets face significant challenges in dealing with a vast amount of feature candidates from high-dimensional multivariate data. In contrast, deep neural…

机器学习 · 计算机科学 2023-06-07 Raneen Younis , Abdul Hakmeh , Zahra Ahmadi

Multivariate time series anomaly detection (MTSAD) aims to accurately identify and localize complex abnormal patterns in the large-scale industrial control systems. While existing approaches excel in recognizing the distinct patterns under…

机器学习 · 计算机科学 2025-12-17 Xuechun Liu , Heli Sun , Xuecheng Wu , Ruichen Cao , Yunyun Shi , Dingkang Yang , Haoran Li

The mechanism of connecting multimodal signals through self-attention operation is a key factor in the success of multimodal Transformer networks in remote sensing data fusion tasks. However, traditional approaches assume access to all…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yuxing Chen , Maofan Zhao , Lorenzo Bruzzone

Reconstruction-based methods are a dominant paradigm in time series anomaly detection (TSAD), however, their near-universal reliance on Mean Squared Error (MSE) loss results in statistically flawed reconstruction residuals. This fundamental…

机器学习 · 计算机科学 2026-05-12 Wenlong Shang , Shihao Tian , Xutong Wan , Peng Chang

Recent advances in digitization have led to the availability of multivariate time series data in various domains, enabling real-time monitoring of operations. Identifying abnormal data patterns and detecting potential failures in these…

机器学习 · 计算机科学 2023-10-10 Fan Wang , Keli Wang , Boyu Yao

Most existing single-modal time series models rely solely on numerical series, which suffer from the limitations imposed by insufficient information. Recent studies have revealed that multimodal models can address the core issue by…

机器学习 · 计算机科学 2025-05-05 Wenfa Wu , Guanyu Zhang , Zheng Tan , Yi Wang , Hongsheng Qi

Feature modeling of different modalities is a basic problem in current research of cross-modal information retrieval. Existing models typically project texts and images into one embedding space, in which semantically similar information…

多媒体 · 计算机科学 2019-06-13 Jing Yu , Chenghao Yang , Zengchang Qin , Zhuoqian Yang , Yue Hu , Weifeng Zhang

Remote sensing (RS) cross-modal text-image retrieval has attracted extensive attention for its advantages of flexible input and efficient query. However, traditional methods ignore the characteristics of multi-scale and redundant targets in…

计算机视觉与模式识别 · 计算机科学 2022-04-22 Zhiqiang Yuan , Wenkai Zhang , Kun Fu , Xuan Li , Chubo Deng , Hongqi Wang , Xian Sun

Recent research in time series forecasting has explored integrating multimodal features into models to improve accuracy. However, the accuracy of such methods is constrained by three key challenges: inadequate extraction of fine-grained…

机器学习 · 计算机科学 2025-10-21 Shule Hao , Junpeng Bao , Wenli Li

Time series anomaly detection (TSAD) has traditionally focused on binary classification and often lacks the fine-grained categorization and explanatory reasoning required for transparent decision-making. To address these limitations, we…

机器学习 · 计算机科学 2026-04-17 Yiyuan Yang , Zichuan Liu , Lei Song , Kai Ying , Zhiguang Wang , Tom Bamford , Svitlana Vyetrenko , Jiang Bian , Qingsong Wen

Detecting anomalies in real-world multivariate time series data is challenging due to complex temporal dependencies and inter-variable correlations. Recently, reconstruction-based deep models have been widely used to solve the problem.…

机器学习 · 计算机科学 2023-12-06 Junho Song , Keonwoo Kim , Jeonglyul Oh , Sungzoon Cho

Multivariate time-series (MTS) anomaly detection is critical in domains such as service monitor, IoT, and network security. While multi-model methods based on selection or ensembling outperform single-model ones, they still face…

机器学习 · 计算机科学 2026-01-06 Wei Hu , Zewei Yu , Jianqiu Xu

Multivariate time series data, collected across various fields such as manufacturing and wearable technology, exhibit states at multiple levels of granularity, from coarse-grained system behaviors to fine-grained, detailed events.…

机器学习 · 计算机科学 2025-08-15 Ching Chang , Ming-Chih Lo , Wen-Chih Peng , Tien-Fu Chen

Irregular sampling occurs in many time series modeling applications where it presents a significant challenge to standard deep learning models. This work is motivated by the analysis of physiological time series data in electronic health…

机器学习 · 计算机科学 2021-06-08 Satya Narayan Shukla , Benjamin M. Marlin

Multivariate time series anomaly detection is essential for failure management in web application operations, as it directly influences the effectiveness and timeliness of implementing remedial or preventive measures. This task is often…

机器学习 · 计算机科学 2025-01-29 Yongzheng Xie , Hongyu Zhang , Muhammad Ali Babar

Fake news often involves multimedia information such as text and image to mislead readers, proliferating and expanding its influence. Most existing fake news detection methods apply the co-attention mechanism to fuse multimodal features…

信息检索 · 计算机科学 2023-04-13 Linmei Hu , Ziwang Zhao , Weijian Qi , Xuemeng Song , Liqiang Nie