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Huang's Empirical Mode Decomposition (EMD) is an algorithm for analyzing nonstationary data that provides a localized time-frequency representation by decomposing the data into adaptively defined modes. EMD can be used to estimate a…

数据分析、统计与概率 · 物理学 2010-08-26 Daniel N. Kaslovsky , Francois G. Meyer

In a number of environmental studies, relationships between natural processes are often assessed through regression analyses, using time series data. Such data are often multi-scale and non-stationary, leading to a poor accuracy of the…

Time series forecasting remains a central challenge problem in almost all scientific disciplines. We introduce a novel load forecasting method in which observed dynamics are modeled as a forced linear system using Dynamic Mode Decomposition…

物理与社会 · 物理学 2021-07-13 Daniel Dylewsky , David Barajas-Solano , Tong Ma , Alexandre M. Tartakovsky , J. Nathan Kutz

Empirical Mode Decomposition(EMD) is an adaptive data analysis technique for analyzing nonlinear and nonstationary data[1]. EMD decomposes the original data into a number of Intrinsic Mode Functions(IMFs)[1] for giving better physical…

统计方法学 · 统计学 2016-01-27 Sumit Kumar Ram , Marta Molinas

Highly accurate interval forecasting of electricity demand is fundamental to the success of reducing the risk when making power system planning and operational decisions by providing a range rather than point estimation. In this study, a…

机器学习 · 计算机科学 2014-06-17 Tao Xiong , Yukun Bao , Zhongyi Hu

This thesis examines the empirical mode decomposition (EMD), a method for decomposing multicomponent signals, from a modern, both theoretical and practical, perspective. The motivation is to further formalize the concept and develop new…

数值分析 · 数学 2023-02-08 Laslo Hunhold

Following the "decomposition-and-ensemble" principle, the empirical mode decomposition (EMD)-based modeling framework has been widely used as a promising alternative for nonlinear and nonstationary time series modeling and prediction. The…

人工智能 · 计算机科学 2014-01-14 Tao Xiong , Yukun Bao , Zhongyi Hu

In this paper we present a mathematical model of the Empirical Mode Decomposition (EMD). Although EMD is a powerful tool for signal processing, the algorithm itself lacks an appropriate theoretical basis. The interpolation and iteration…

信号处理 · 电气工程与系统科学 2018-02-06 Heming Wang , Richard Mann , Edward R. Vrscay

Short-term load forecasting is one of the crucial sections in smart grid. Precise forecasting enables system operators to make reliable unit commitment and power dispatching decisions. With the advent of big data, a number of artificial…

信号处理 · 电气工程与系统科学 2018-09-27 Tiantian Li , Bo Wang , Min Zhou , Junzo Watada

The Empirical Mode Decomposition (EMD) provides a tool to characterize time series in terms of its implicit components oscillating at different time-scales. We apply this decomposition to intraday time series of the following three…

计算工程、金融与科学 · 计算机科学 2018-04-04 Noemi Nava , T. Di Matteo , Tomaso Aste

The EMD algorithm, first proposed in [11], made more robust as well as more versatile in [12], is a technique that aims to decompose into their building blocks functions that are the superposition of a (reasonably) small number of…

数值分析 · 数学 2009-12-15 Ingrid Daubechies , Jianfeng Lu , Hau-Tieng Wu

Time-series forecasting often faces challenges due to data volatility, which can lead to inaccurate predictions. Variational Mode Decomposition (VMD) has emerged as a promising technique to mitigate volatility by decomposing data into…

机器学习 · 计算机科学 2024-09-05 Hafizh Raihan Kurnia Putra , Novanto Yudistira , Tirana Noor Fatyanosa

The Empirical Mode Decomposition (EMD) is a signal analysis method that separates multi-component signals into single oscillatory modes called intrinsic mode functions (IMFs), each of which can generally be associated to a physical meaning…

统计方法学 · 统计学 2019-07-11 Olav B. Fosso , Marta Molinas

A methodology of adaptive time series analysis based on Empirical Mode Decomposition (EMD) has been employed to investigate $^{7}$Be activity concentration variability, along with temperature. Analysed data were sampled at ground level by…

地球物理 · 物理学 2019-05-22 Alessandro Longo , Stefano Bianchi , Wolfango Plastino

Accurate day-ahead peak load forecasting is crucial not only for power dispatching but also has a great interest to investors and energy policy maker as well as government. Literature reveals that 1% error drop of forecast can reduce 10…

机器学习 · 计算机科学 2021-11-02 Yanmei Huang , Najmul Hasan , Changrui Deng , Yukun Bao

Effective resource allocation is a crucial requirement to achieve the stringent performance targets of ultra-reliable low-latency communication (URLLC) services. Predicting future interference and utilizing it to design efficient…

信号处理 · 电气工程与系统科学 2023-04-05 Chandu Jayawardhana , Thushan Sivalingam , Nurul Huda Mahmood , Nandana Rajatheva , Matti Latva-Aho

This paper introduces a data-driven time embedding method for modeling long-range seasonal dependencies in spatiotemporal forecasting tasks. The proposed approach employs Dynamic Mode Decomposition (DMD) to extract temporal modes directly…

机器学习 · 计算机科学 2025-08-05 Menglin Kong , Vincent Zhihao Zheng , Xudong Wang , Lijun Sun

This paper discusses the application of Dynamic Mode Decomposition (DMD) to the extraction of modal properties of linear mechanical systems, i.e., experimental modal analysis (EMA). First, theoretical background of the DMD is briefly…

动力系统 · 数学 2026-03-17 Akira Saito , Tomohiro Kuno

To enhance the accuracy of power load forecasting in wind farms, this study introduces an advanced combined forecasting method that integrates Variational Mode Decomposition (VMD) with an Improved Particle Swarm Optimization (IPSO)…

机器学习 · 计算机科学 2024-12-17 Qiang Xie

Mid-term electricity load forecasting (LF) plays a critical role in power system planning and operation. To address the issue of error accumulation and transfer during the operation of existing LF models, a novel model called error…

机器学习 · 计算机科学 2023-06-21 Liping Zhang , Di Wu , Xin Luo
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