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Multivariate time-series data in numerous real-world applications (e.g., healthcare and industry) are informative but challenging due to the lack of labels and high dimensionality. Recent studies in self-supervised learning have shown their…

机器学习 · 计算机科学 2024-07-18 Ching Chang , Chiao-Tung Chan , Wei-Yao Wang , Wen-Chih Peng , Tien-Fu Chen

Large Language Models (LLMs) have been extensively applied in time series analysis. Yet, their utility in the few-shot classification (i.e., a crucial training scenario due to the limited training data available in industrial applications)…

机器学习 · 计算机科学 2025-02-04 Yakun Chen , Zihao Li , Chao Yang , Xianzhi Wang , Guandong Xu

Time series prediction with neural networks has been the focus of much research in the past few decades. Given the recent deep learning revolution, there has been much attention in using deep learning models for time series prediction, and…

机器学习 · 计算机科学 2021-06-08 Rohitash Chandra , Shaurya Goyal , Rishabh Gupta

Learning compressed representations of multivariate time series (MTS) facilitates data analysis in the presence of noise and redundant information, and for a large number of variates and time steps. However, classical dimensionality…

神经与进化计算 · 计算机科学 2019-07-17 Filippo Maria Bianchi , Lorenzo Livi , Karl Øyvind Mikalsen , Michael Kampffmeyer , Robert Jenssen

As industrial systems become more complex and monitoring sensors for everything from surveillance to our health become more ubiquitous, multivariate time series prediction is taking an important place in the smooth-running of our society. A…

机器学习 · 计算机科学 2022-03-03 Fan Jin , Ke Zhang , Yipan Huang , Yifei Zhu , Baiping Chen

Applying machine learning (ML) on multivariate time series data has growing popularity in many application domains, including in computer system management. For example, recent high performance computing (HPC) research proposes a variety of…

机器学习 · 计算机科学 2021-08-20 Emre Ates , Burak Aksar , Vitus J. Leung , Ayse K. Coskun

Multimodal large language models (MLLMs) have advanced rapidly, yet heterogeneity in architecture, alignment strategies, and efficiency means that no single model is uniformly superior across tasks. In practical deployments, workloads span…

人工智能 · 计算机科学 2026-01-27 Haoxuan Ma , Guannan Lai , Han-Jia Ye

Multivariate time series classification (TSC) is critical for various applications in fields such as healthcare and finance. While various approaches for TSC have been explored, important properties of time series, such as shift…

机器学习 · 计算机科学 2025-03-18 Md Atik Ahamed , Qiang Cheng

There are now a broad range of time series classification (TSC) algorithms designed to exploit different representations of the data. These have been evaluated on a range of problems hosted at the UCR-UEA TSC Archive…

机器学习 · 计算机科学 2017-04-10 Anthony Bagnall , Aaron Bostrom , James Large , Jason Lines

In this paper, we introduce novel Twin Parametric Margin Support Vector Machine (TPMSVM) models designed to address multiclass classification tasks under feature uncertainty. To handle data perturbations, we construct bounded-by-norm…

机器学习 · 计算机科学 2026-04-29 Renato De Leone , Francesca Maggioni , Andrea Spinelli

We build upon time-series classification by leveraging the capabilities of Vision Language Models (VLMs). We find that VLMs produce competitive results after two or less epochs of fine-tuning. We develop a novel approach that incorporates…

人工智能 · 计算机科学 2025-01-22 Vinay Prithyani , Mohsin Mohammed , Richa Gadgil , Ricardo Buitrago , Vinija Jain , Aman Chadha

Real-world time series often exhibit strong non-stationarity, complex nonlinear dynamics, and behavior expressed across multiple temporal scales, from rapid local fluctuations to slow-evolving long-range trends. However, many contemporary…

机器学习 · 计算机科学 2026-05-19 Sumit S Shevtekar , Chandresh K Maurya

Time-series classification is one of the most frequently performed tasks in industrial data science, and one of the most widely used data representation in the industrial setting is tabular representation. In this work, we propose a novel…

机器学习 · 计算机科学 2021-10-06 Sharath M Shankaranarayana , Davor Runje

Time Series Classification (TSC) encompasses two settings: classifying entire sequences or classifying segmented subsequences. The raw time series for segmented TSC usually contain Multiple classes with Varying Duration of each class (MVD).…

人工智能 · 计算机科学 2025-04-24 Junru Chen , Tianyu Cao , Jing Xu , Jiahe Li , Zhilong Chen , Tao Xiao , Yang Yang

Time series (TS) data are ubiquitous across various application areas, rendering time series forecasting (TSF) a fundamental task. With the astounding advances in large language models (LLMs), a variety of methods have been developed to…

人工智能 · 计算机科学 2025-08-25 Zhuomin Chen , Dan Li , Jiahui Zhou , Shunyu Wu , Haozheng Ye , Jian Lou , See-Kiong Ng

Time series classification (TSC) is the most import task in time series mining as it has several applications in medicine, meteorology, finance cyber security, and many others. With the ever increasing size of time series datasets, several…

机器学习 · 计算机科学 2023-12-12 Muhammad Marwan Muhammad Fuad

Spatiotemporal predictive learning, which predicts future frames through historical prior knowledge with the aid of deep learning, is widely used in many fields. Previous work essentially improves the model performance by widening or…

计算机视觉与模式识别 · 计算机科学 2024-03-01 Zhifeng Ma , Hao Zhang , Jie Liu

Most current multivariate time series (MTS) classification algorithms focus on improving the predictive accuracy. However, for large-scale (either high-dimensional or long-sequential) time series (TS) datasets, there is an additional…

机器学习 · 计算机科学 2022-03-29 Yuqing Wang , Yun Zhao , Linda Petzold

Time-series reasoning remains a significant challenge in multimodal large language models (MLLMs) due to the dynamic temporal patterns, ambiguous semantics, and lack of temporal priors. In this work, we introduce TimeMaster, a reinforcement…

机器学习 · 计算机科学 2025-06-17 Junru Zhang , Lang Feng , Xu Guo , Yuhan Wu , Yabo Dong , Duanqing Xu

Accurate analysis of industrial time-series big data is critical for the Prognostics and Health Management (PHM) of industrial equipment. While recent advancements in Large Language Models (LLMs) have shown promise in time-series analysis,…

机器学习 · 计算机科学 2026-03-10 Haiteng Wang , Yikang Li , Yunfei Zhu , Jingheng Yan , Lei Ren , Laurence T. Yang