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Bearing fault detection is a critical task in predictive maintenance, where accurate and timely fault identification can prevent costly downtime and equipment damage. Traditional attention mechanisms in Transformer neural networks often…

机器学习 · 计算机科学 2024-12-17 Marzieh Mirzaeibonehkhater , Mohammad Ali Labbaf-Khaniki , Mohammad Manthouri

In multivariate time series (MTS) forecasting, many deep learning based methods have been proposed for modeling dependencies at multiple spatial (inter-variate) or temporal (intra-variate) scales. However, existing methods may fail to model…

机器学习 · 计算机科学 2025-09-03 Binqing Wu , Jianlong Huang , Zongjiang Shang , Ling Chen

We introduce an anomaly detection method for multivariate time series data with the aim of identifying critical periods and features influencing extreme climate events like snowmelt in the Arctic. This method leverages the Variational…

机器学习 · 计算机科学 2024-07-16 Tolulope Ale , Nicole-Jeanne Schlegel , Vandana P. Janeja

Time series forecasting is critical for decision-making across dynamic domains such as energy, finance, transportation, and cloud computing. However, real-world time series often exhibit non-stationarity, including temporal distribution…

机器学习 · 计算机科学 2025-12-01 Junkai Lu , Peng Chen , Chenjuan Guo , Yang Shu , Meng Wang , Bin Yang

Transformers have demonstrated remarkable efficacy in forecasting time series data. However, their extensive dependence on self-attention mechanisms demands significant computational resources, thereby limiting their practical applicability…

机器学习 · 计算机科学 2024-06-26 Cat P. Le , Chris Cannella , Ali Hasan , Yuting Ng , Vahid Tarokh

Accurate spatial-temporal traffic flow forecasting is crucial in aiding traffic managers in implementing control measures and assisting drivers in selecting optimal travel routes. Traditional deep-learning based methods for traffic flow…

机器学习 · 计算机科学 2026-01-12 Pengxin Guo , Pengrong Jin , Ziyue Li , Lei Bai , Yu Zhang

Short-term precipitation forecasting is essential for planning of human activities in multiple scales, ranging from individuals' planning, urban management to flood prevention. Yet the short-term atmospheric dynamics are highly nonlinear…

机器学习 · 计算机科学 2021-01-26 Donlapark Ponnoprat

As a core technology of Intelligent Transportation System (ITS), traffic flow prediction has a wide range of applications. Traffic flow data are spatial-temporal, which are not only correlated to spatial locations in road networks, but also…

人工智能 · 计算机科学 2024-12-24 Xiao Xu , Lei Zhang , Bailong Liu , Zhizhen Liang , Xuefei Zhang

Trajectory prediction is a challenging problem that requires considering interactions among multiple actors and the surrounding environment. While data-driven approaches have been used to address this complex problem, they suffer from…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Daehee Park , Jaeseok Jeong , Sung-Hoon Yoon , Jaewoo Jeong , Kuk-Jin Yoon

This paper addresses the difficulty of characterizing the time-varying nature of fading channels. The current time-invariant models often fall short of capturing and tracking these dynamic characteristics. To overcome this limitation, we…

信号处理 · 电气工程与系统科学 2024-02-22 Eya Ben Amar , Nadhir Ben Rached , Raul Tempone , Mohamed-Slim Alouini

Online updating of time series forecasting models aims to tackle the challenge of concept drifting by adjusting forecasting models based on streaming data. While numerous algorithms have been developed, most of them focus on model design…

机器学习 · 计算机科学 2024-03-25 YiFan Zhang , Weiqi Chen , Zhaoyang Zhu , Dalin Qin , Liang Sun , Xue Wang , Qingsong Wen , Zhang Zhang , Liang Wang , Rong Jin

Querying causal effects from time-series data is important across various fields, including healthcare, economics, climate science, and epidemiology. However, this task becomes complex in the existence of time-varying latent confounders,…

机器学习 · 计算机科学 2024-11-28 Debo Cheng , Ziqi Xu , Jiuyong Li , Lin Liu , Thuc duy Le , Xudong Guo , Shichao Zhang

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

In an intelligent transportation system, the key problem of traffic forecasting is how to extract periodic temporal dependencies and complex spatial correlations. Current state-of-the-art methods for predicting traffic flow are based on…

机器学习 · 计算机科学 2022-03-01 Zichuan Liu , Rui Zhang , Chen Wang , Zhu Xiao , Hongbo Jiang

Since distribution shifts are likely to occur during test-time and can drastically decrease the model's performance, online test-time adaptation (TTA) continues to update the model after deployment, leveraging the current test data.…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Robert A. Marsden , Mario Döbler , Bin Yang

Multivariate Time Series Forecasting (MTSF) has long been a key research focus. Traditionally, these studies assume a fixed number of variables, but in real-world applications, Cyber-Physical Systems often expand as new sensors are…

机器学习 · 计算机科学 2025-06-03 Minbo Ma , Kai Tang , Huan Li , Fei Teng , Dalin Zhang , Tianrui Li

Probabilistic forecasting of multivariate time series is essential for various downstream tasks. Most existing approaches rely on the sequences being uniformly spaced and aligned across all variables. However, real-world multivariate time…

机器学习 · 计算机科学 2025-02-18 Yijun Li , Cheuk Hang Leung , Qi Wu

The key problem in multivariate time series (MTS) analysis and forecasting aims to disclose the underlying couplings between variables that drive the co-movements. Considerable recent successful MTS methods are built with graph neural…

机器学习 · 计算机科学 2022-10-11 Kun Yi , Qi Zhang , Liang Hu , Hui He , Ning An , LongBing Cao , ZhenDong Niu

Deep learning has achieved strong performance in Time Series Forecasting (TSF). However, we identify a critical representation paradox, termed Latent Chaos: models with accurate predictions often learn latent representations that are…

机器学习 · 计算机科学 2026-05-13 Jie Yang , Yifan Hu , Yuante Li , Kexin Zhang , Kaize Ding , Philip S. Yu

Recent years have witnessed tremendous interest in understanding and predicting information spread on social media platforms such as Twitter, Facebook, etc. Existing diffusion prediction methods primarily exploit the sequential order of…

社会与信息网络 · 计算机科学 2020-06-09 Aravind Sankar , Xinyang Zhang , Adit Krishnan , Jiawei Han
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