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Deep learning-based algorithms, e.g., convolutional networks, have significantly facilitated multivariate time series classification (MTSC) task. Nevertheless, they suffer from the limitation in modeling long-range dependence due to the…

机器学习 · 计算机科学 2023-02-21 Mingyue Cheng , Qi Liu , Zhiding Liu , Zhi Li , Yucong Luo , Enhong Chen

A fundamental challenge in federated learning lies in mixing heterogeneous datasets and classification tasks while minimizing the high communication cost caused by clients as well as the exchange of weight updates with the server over a…

图像与视频处理 · 电气工程与系统科学 2024-08-19 Atefe Hassani , Islem Rekik

Multivariate time series forecasting (MTSF) is a critical task with broad applications in domains such as meteorology, transportation, and economics. Nevertheless, pervasive missing values caused by sensor failures or human errors…

机器学习 · 计算机科学 2025-06-23 Kai Tang , Ji Zhang , Hua Meng , Minbo Ma , Qi Xiong , Fengmao Lv , Jie Xu , Tianrui Li

Deep learning methods are powerful tools but often suffer from expensive computation and limited flexibility. An alternative is to combine light-weight models with deep representations. As successful cases exist in several visual problems,…

计算机视觉与模式识别 · 计算机科学 2015-09-25 Bin Yang , Junjie Yan , Zhen Lei , Stan Z. Li

Multi-horizon forecasting problems often contain a complex mix of inputs -- including static (i.e. time-invariant) covariates, known future inputs, and other exogenous time series that are only observed historically -- without any prior…

机器学习 · 统计学 2020-09-29 Bryan Lim , Sercan O. Arik , Nicolas Loeff , Tomas Pfister

The analysis of multivariate time series data is challenging due to the various frequencies of signal changes that can occur over both short and long terms. Furthermore, standard deep learning models are often unsuitable for such datasets,…

机器学习 · 计算机科学 2023-06-21 Iman Deznabi , Madalina Fiterau

Multivariate time series classification (MTSC) has attracted significant research attention due to its diverse real-world applications. Recently, exploiting transformers for MTSC has achieved state-of-the-art performance. However, existing…

机器学习 · 计算机科学 2024-05-24 Xuan-May Le , Ling Luo , Uwe Aickelin , Minh-Tuan Tran

Accurate multivariate time-series prediction of vital signs and laboratory results is crucial for early intervention and precision medicine in intensive care units (ICUs). However, vital signs are often noisy and exhibit rapid fluctuations,…

机器学习 · 计算机科学 2025-11-26 Wanzhe Xu , Yutong Dai , Yitao Yang , Martin Loza , Weihang Zhang , Yang Cui , Xin Zeng , Sung Joon Park , Kenta Nakai

Detecting and analyzing complex patterns in multivariate time-series data is crucial for decision-making in urban and environmental system operations. However, challenges arise from the high dimensionality, intricate complexity, and…

机器学习 · 计算机科学 2024-12-25 Haowen Xu , Ali Boyaci , Jianming Lian , Aaron Wilson

Multivariate time series classification supports applications from wearable sensing to biomedical monitoring and demands models that can capture both short-term patterns and multi-scale temporal dependencies. Despite recent advances,…

机器学习 · 计算机科学 2026-04-07 Federico Zucchi , Thomas Lampert

Time series motifs play an important role in the time series analysis. The motif-based time series clustering is used for the discovery of higher-order patterns or structures in time series data. Inspired by the convolutional neural network…

机器学习 · 计算机科学 2020-01-22 Yadong Zhang , Xin Chen

Time series analysis plays a vital role in fields such as finance, healthcare, industry, and meteorology, underpinning key tasks including classification, forecasting, and anomaly detection. Although deep learning models have achieved…

机器学习 · 计算机科学 2025-12-17 Da Zhang , Bingyu Li , Zhiyuan Zhao , Feiping Nie , Junyu Gao , Xuelong Li

Multivariate time series forecasting is a pivotal task in several domains, including financial planning, medical diagnostics, and climate science. This paper presents the Neural Fourier Transform (NFT) algorithm, which combines…

机器学习 · 计算机科学 2024-05-24 Noam Koren , Kira Radinsky

Explanation for Multivariate Time Series Classification (MTSC) is an important topic that is under explored. There are very few quantitative evaluation methodologies and even fewer examples of actionable explanation, where the explanation…

机器学习 · 计算机科学 2024-08-13 Davide Italo Serramazza , Thach Le Nguyen , Georgiana Ifrim

In the domain of multivariate time series analysis, the concept of channel independence has been increasingly adopted, demonstrating excellent performance due to its ability to eliminate noise and the influence of irrelevant variables.…

机器学习 · 计算机科学 2024-12-18 Haoxin Wang , Yipeng Mo , Kunlan Xiang , Nan Yin , Honghe Dai , Bixiong Li , Songhai Fan , Site Mo

Multimodal evidence is critical in computational pathology: gigapixel whole slide images capture tumor morphology, while patient-level clinical descriptors preserve complementary context for prognosis. Integrating such heterogeneous signals…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Chengying She , Chengwei Chen , Xinran Zhang , Ben Wang , Lizhuang Liu , Chengwei Shao , Yun Bian

In recent times, the field of unsupervised representation learning (URL) for time series data has garnered significant interest due to its remarkable adaptability across diverse downstream applications. Unsupervised learning goals differ…

机器学习 · 计算机科学 2025-05-12 Chen Liang , Donghua Yang , Zhiyu Liang , Hongzhi Wang , Zheng Liang , Xiyang Zhang , Jianfeng Huang

This paper presents unitary-precoded single-carrier (USC) modulation as a family of waveforms based on multiplexing the information symbols on time domain unitary basis functions. The common property of these basis functions is that they…

信号处理 · 电气工程与系统科学 2022-01-26 Tharaj Thaj , Emanuele Viterbo

Electrocardiogram (ECG) is an authoritative source to diagnose and counter critical cardiovascular syndromes such as arrhythmia and myocardial infarction (MI). Current machine learning techniques either depend on manually extracted features…

机器学习 · 计算机科学 2021-07-22 Zeeshan Ahmad , Anika Tabassum , Ling Guan , Naimul Khan

Errors are common in time series due to unreliable sensor measurements. Existing methods focus on univariate data but do not utilize the correlation between dimensions. Cleaning each dimension separately may lead to a less accurate result,…

数据库 · 计算机科学 2024-11-05 Aoqian Zhang , Zexue Wu , Yifeng Gong , Ye Yuan , Guoren Wang