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Unsupervised fault detection in multivariate time series plays a vital role in ensuring the stable operation of complex systems. Traditional methods often assume that normal data follow a single Gaussian distribution and identify anomalies…

机器学习 · 计算机科学 2025-07-01 Hong Liu , Xiuxiu Qiu , Yiming Shi , Miao Xu , Zelin Zang , Zhen Lei

Continuous-time series is essential for different modern application areas, e.g. healthcare, automobile, energy, finance, Internet of things (IoT) and other related areas. Different application needs to process as well as analyse a massive…

机器学习 · 计算机科学 2024-09-17 Mansura Habiba , Barak A. Pearlmutter , Mehrdad Maleki

The ability to identify and localize new objects robustly and effectively is vital for robotic grasping and manipulation in warehouses or smart factories. Deep convolutional neural networks (DCNNs) have achieved the state-of-the-art…

机器人学 · 计算机科学 2019-03-05 Benjamin Schnieders , Shan Luo , Gregory Palmer , Karl Tuyls

This paper presents a novel deep learning architecture to classify structured objects in datasets with a large number of visually similar categories. We model sequences of images as linear-chain CRFs, and jointly learn the parameters from…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Eran Goldman , Jacob Goldberger

Clustering is a fundamental unsupervised representation learning task with wide application in computer vision and pattern recognition. Deep clustering utilizes deep neural networks to learn latent representation, which is suitable for…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Wenhao Wu , Weiwei Wang , Shengjiang Kong

Recent success in contrastive learning has sparked growing interest in more effectively leveraging multiple augmented views of data. While prior methods incorporate multiple views at the loss or feature level, they primarily capture…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Jae Hyoung Jeon , Cheolsu Lim , Myungjoo Kang

Recently, with the development of deep learning, end-to-end neural network architectures have been increasingly applied to condition monitoring signals. They have demonstrated superior performance for fault detection and classification, in…

机器学习 · 计算机科学 2021-07-01 Oliver Ammann , Gabriel Michau , Olga Fink

Orthogonal time frequency space (OTFS) modulation is a robust candidate waveform for future wireless systems, particularly in high-mobility scenarios, as it effectively mitigates the impact of rapidly time-varying channels by mapping…

信号处理 · 电气工程与系统科学 2026-01-12 Meiwen Men , Tao Zhou , Kaifeng Bao , Zhiyang Guo , Yongning Qi , Liu Liu , Bo Ai

The structured time series (STS) classification problem requires the modeling of interweaved spatiotemporal dependency. most previous STS classification methods model the spatial and temporal dependencies independently. Due to the…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Shuchen Weng , Wenbo Li , Yi Zhang , Siwei Lyu

Accurate multivariate time series forecasting hinges on inter-series correlations, which often evolve in complex ways across different temporal scales. Existing methods are limited in modeling these multi-scale dependencies and struggle to…

机器学习 · 计算机科学 2026-01-27 Shaoxun Wang , Xingjun Zhang , Qianyang Li , Jiawei Cao , Zhendong Tan

Deep neural networks (DNNs) that tackle the time series classification (TSC) task have provided a promising framework in signal processing. In real-world applications, as a data-driven model, DNNs are suffered from insufficient data.…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Hao Zhang , Zhendong Pang , Jiangpeng Wang , Teng Li

Time-series data originate from various applications that describe specific observations or quantities of interest over time. Their analysis often involves the comparison across different time-series data sequences, which in turn requires…

机器学习 · 计算机科学 2024-02-15 Kishansingh Rajput , Duong Binh Nguyen , Guoning Chen

A highly comparative, feature-based approach to time series classification is introduced that uses an extensive database of algorithms to extract thousands of interpretable features from time series. These features are derived from across…

机器学习 · 计算机科学 2017-11-10 Ben D. Fulcher , Nick S. Jones

Pervasive localization is essential for continuous tracking applications, yet existing solutions face challenges in balancing power consumption and accuracy. GPS, while precise, is impractical for continuous tracking of micro-assets due to…

系统与控制 · 电气工程与系统科学 2025-05-12 Aritrik Ghosh , Nakul Garg , Nirupam Roy

Time series data, defined by equally spaced points over time, is essential in fields like medicine, telecommunications, and energy. Analyzing it involves tasks such as classification, clustering, prototyping, and regression. Classification…

机器学习 · 计算机科学 2025-02-27 Ali Ismail-Fawaz

Dynamic Time Wrapping (DTW) is a widely used algorithm for measuring similarities between two time series. It is especially valuable in a wide variety of applications, such as clustering, anomaly detection, classification, or video…

机器学习 · 计算机科学 2023-01-31 Hugo Lerogeron , Romain Picot-Clemente , Alain Rakotomamonjy , Laurent Heutte

Benefiting from high capacity for capturing complex temporal patterns, deep learning (DL) has significantly advanced time series forecasting (TSF). However, deep models tend to suffer from severe overfitting due to the inherent…

机器学习 · 计算机科学 2025-10-30 Yisong Fu , Zezhi Shao , Chengqing Yu , Yujie Li , Zhulin An , Qi Wang , Yongjun Xu , Fei Wang

We introduce a self-consistent deep-learning framework which, for a noisy deterministic time series, provides unsupervised filtering, state-space reconstruction, identification of the underlying differential equations and forecasting.…

机器学习 · 计算机科学 2021-08-05 Zhe Wang , Claude Guet

Multivariate time series anomaly detection has become an active area of research in recent years, with Deep Learning models outperforming previous approaches on benchmark datasets. Among reconstruction-based models, most previous work has…

机器学习 · 计算机科学 2022-02-28 Cristian Challu , Peihong Jiang , Ying Nian Wu , Laurent Callot

Inspired by the tremendous success of deep Convolutional Neural Networks as generic feature extractors for images, we propose TimeNet: a deep recurrent neural network (RNN) trained on diverse time series in an unsupervised manner using…

机器学习 · 计算机科学 2017-06-28 Pankaj Malhotra , Vishnu TV , Lovekesh Vig , Puneet Agarwal , Gautam Shroff