D-CTNet: A Dual-Branch Channel-Temporal Forecasting Network with Frequency-Domain Correction

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Main Authors: Wang, Shaoxun, Zhang, Xingjun, Xia, Kun, Li, Qianyang, Cao, Jiawei, Tan, Zhendong
Format: Preprint
Published: 2025
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author Wang, Shaoxun
Zhang, Xingjun
Xia, Kun
Li, Qianyang
Cao, Jiawei
Tan, Zhendong
author_facet Wang, Shaoxun
Zhang, Xingjun
Xia, Kun
Li, Qianyang
Cao, Jiawei
Tan, Zhendong
contents Accurate Multivariate Time Series (MTS) forecasting is crucial for collaborative design of complex systems, Digital Twin building, and maintenance ahead of time. However, the collaborative industrial environment presents new challenges for MTS forecasting models: models should decouple complex inter-variable dependencies while addressing non-stationary distribution shift brought by environmental changes. To address these challenges and improve collaborative sensing reliability, we propose a Patch-Based Dual-Branch Channel-Temporal Forecasting Network (D-CTNet). Particularly, with a parallel dual-branch design incorporating linear temporal modeling layer and channel attention mechanism, our method explicitly decouples and jointly learns intra-channel temporal evolution patterns and dynamic multivariate correlations. Furthermore, a global patch attention fusion module goes beyond the local window scope to model long range dependencies. Most importantly, aiming at non-stationarity, a Frequency-Domain Stationarity Correction mechanism adaptively suppresses distribution shift impacts from environment change by spectrum alignment. Evaluations on seven benchmark datasets show that our model achieves better forecasting accuracy and robustness compared with state-of-the-art methods. Our work shows great promise as a new forecasting engine for industrial collaborative systems.
format Preprint
id arxiv_https___arxiv_org_abs_2512_00925
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle D-CTNet: A Dual-Branch Channel-Temporal Forecasting Network with Frequency-Domain Correction
Wang, Shaoxun
Zhang, Xingjun
Xia, Kun
Li, Qianyang
Cao, Jiawei
Tan, Zhendong
Machine Learning
Accurate Multivariate Time Series (MTS) forecasting is crucial for collaborative design of complex systems, Digital Twin building, and maintenance ahead of time. However, the collaborative industrial environment presents new challenges for MTS forecasting models: models should decouple complex inter-variable dependencies while addressing non-stationary distribution shift brought by environmental changes. To address these challenges and improve collaborative sensing reliability, we propose a Patch-Based Dual-Branch Channel-Temporal Forecasting Network (D-CTNet). Particularly, with a parallel dual-branch design incorporating linear temporal modeling layer and channel attention mechanism, our method explicitly decouples and jointly learns intra-channel temporal evolution patterns and dynamic multivariate correlations. Furthermore, a global patch attention fusion module goes beyond the local window scope to model long range dependencies. Most importantly, aiming at non-stationarity, a Frequency-Domain Stationarity Correction mechanism adaptively suppresses distribution shift impacts from environment change by spectrum alignment. Evaluations on seven benchmark datasets show that our model achieves better forecasting accuracy and robustness compared with state-of-the-art methods. Our work shows great promise as a new forecasting engine for industrial collaborative systems.
title D-CTNet: A Dual-Branch Channel-Temporal Forecasting Network with Frequency-Domain Correction
topic Machine Learning
url https://arxiv.org/abs/2512.00925