A multiscale model for multivariate time series forecasting

Abstract Transformer based models for time-series forecasting have shown promising performance and during the past few years different Transformer variants have been proposed in time-series forecasting domain. However, most of the existing methods, mainly represent the time-series from a single scal...

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Main Authors: Vahid Naghashi, Mounir Boukadoum, Abdoulaye Banire Diallo
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-82417-4
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author Vahid Naghashi
Mounir Boukadoum
Abdoulaye Banire Diallo
author_facet Vahid Naghashi
Mounir Boukadoum
Abdoulaye Banire Diallo
author_sort Vahid Naghashi
collection DOAJ
description Abstract Transformer based models for time-series forecasting have shown promising performance and during the past few years different Transformer variants have been proposed in time-series forecasting domain. However, most of the existing methods, mainly represent the time-series from a single scale, making it challenging to capture various time granularities or ignore inter-series correlations between the series which might lead to inaccurate forecasts. In this paper, we address the above mentioned shortcomings and propose a Transformer based model which integrates multi-scale patch-wise temporal modeling and channel-wise representation. In the multi-scale temporal part, the input time-series is divided into patches of different resolutions to capture temporal correlations associated with various scales. The channel-wise encoder which comes after the temporal encoder, models the relations among the input series to capture the intricate interactions between them. In our framework, we further design a multi-step linear decoder to generate the final predictions for the purpose of reducing over-fitting and noise effects. Extensive experiments on seven real world datasets indicate that our model (MultiPatchFormer) achieves state-of-the-art results by surpassing other current baseline models in terms of error metrics and shows stronger generalizability.
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spelling doaj-art-dd2723f8fefb46fa942d9a99f63521082025-01-12T12:22:27ZengNature PortfolioScientific Reports2045-23222025-01-0115111410.1038/s41598-024-82417-4A multiscale model for multivariate time series forecastingVahid Naghashi0Mounir Boukadoum1Abdoulaye Banire Diallo2Computer Science, Université du Québec à MontréalComputer Science, Université du Québec à MontréalComputer Science, Université du Québec à MontréalAbstract Transformer based models for time-series forecasting have shown promising performance and during the past few years different Transformer variants have been proposed in time-series forecasting domain. However, most of the existing methods, mainly represent the time-series from a single scale, making it challenging to capture various time granularities or ignore inter-series correlations between the series which might lead to inaccurate forecasts. In this paper, we address the above mentioned shortcomings and propose a Transformer based model which integrates multi-scale patch-wise temporal modeling and channel-wise representation. In the multi-scale temporal part, the input time-series is divided into patches of different resolutions to capture temporal correlations associated with various scales. The channel-wise encoder which comes after the temporal encoder, models the relations among the input series to capture the intricate interactions between them. In our framework, we further design a multi-step linear decoder to generate the final predictions for the purpose of reducing over-fitting and noise effects. Extensive experiments on seven real world datasets indicate that our model (MultiPatchFormer) achieves state-of-the-art results by surpassing other current baseline models in terms of error metrics and shows stronger generalizability.https://doi.org/10.1038/s41598-024-82417-4
spellingShingle Vahid Naghashi
Mounir Boukadoum
Abdoulaye Banire Diallo
A multiscale model for multivariate time series forecasting
Scientific Reports
title A multiscale model for multivariate time series forecasting
title_full A multiscale model for multivariate time series forecasting
title_fullStr A multiscale model for multivariate time series forecasting
title_full_unstemmed A multiscale model for multivariate time series forecasting
title_short A multiscale model for multivariate time series forecasting
title_sort multiscale model for multivariate time series forecasting
url https://doi.org/10.1038/s41598-024-82417-4
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AT vahidnaghashi multiscalemodelformultivariatetimeseriesforecasting
AT mounirboukadoum multiscalemodelformultivariatetimeseriesforecasting
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