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Dual-model approach for concurrent forecasting of electricity prices and loads in smart grids: Comparison of sparse encoder NAR and GA-optimized LSTM. [PDF]

open access: yesPLoS ONE
Accurate forecasting of electricity prices and loads is challenging in smart grids due to the strong interdependence between load and price. To address this, we propose two deep recurrent neural network models that forecast both load and price ...
Nasir Nauman   +5 more
doaj   +2 more sources

UNCERTAINTY QUANTIFICATION IN STEADY STATE SIMULATIONS OF A MOLTEN SALT SYSTEM USING POLYNOMIAL CHAOS EXPANSION ANALYSIS [PDF]

open access: yesEPJ Web of Conferences, 2021
Uncertainty Quantification (UQ) of numerical simulations is highly relevant in the study and design of complex systems. Among the various approaches available, Polynomial Chaos Expansion (PCE) analysis has recently attracted great interest. It belongs to
Santanoceto Mario   +4 more
doaj   +1 more source

Sparse Grid Adaptive Interpolation in Problems of Modeling Dynamic Systems with Interval Parameters

open access: yesMathematics, 2021
The paper is concerned with the issues of modeling dynamic systems with interval parameters. In previous works, the authors proposed an adaptive interpolation algorithm for solving interval problems; the essence of the algorithm is the dynamic ...
Alexander Yu Morozov   +2 more
doaj   +1 more source

Spherical Grid Creation and Modeling Using the Galerkin Compiler GC_Sphere

open access: yesAtmosphere, 2023
The construction of spherical grids is, to a large extent, a question of organized programming. Such grids come in the form of rhomboidal/triangular grids and hexagonal grids.
Jürgen Steppeler
doaj   +1 more source

Adaptive Sparse Grids with Nonlinear Basis in Interval Problems for Dynamical Systems

open access: yesComputation, 2023
Problems with interval uncertainties arise in many applied fields. The authors have earlier developed, tested, and proved an adaptive interpolation algorithm for solving this class of problems.
Alexander Yu. Morozov   +1 more
doaj   +1 more source

A global geographic grid system for visualizing bathymetry [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2020
A global geographic grid system (Global GGS) is here introduced to support the display of gridded bathymetric data at whatever resolution is available in a visually seamless manner.
C. Ware   +4 more
doaj   +1 more source

Off-Grid sparse blind sensor calibration [PDF]

open access: yes2018 26th Signal Processing and Communications Applications Conference (SIU), 2018
Compressive Sensing (CS) based techniques generally discretize the signal space and assume that the signal is sparse and has support only on the discretized grid points. Due to continuous nature of the signals, representing the signal on a discretized grid results in the off-grid problem.
Yetik, İmam Şamil   +2 more
openaire   +3 more sources

Adaptive sparse-grid Gauss–Hermite filter [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2018
In this paper, a new nonlinear filter based on sparse-grid quadrature method has been proposed. The proposed filter is named as adaptive sparse-grid Gauss-Hermite filter (ASGHF). Ordinary sparse-grid technique treats all the dimensions equally, whereas the ASGHF assigns a fewer number of points along the dimensions with lower nonlinearity.
Abhinoy Kumar Singh   +3 more
openaire   +4 more sources

Estimation of the Optimal Spherical Harmonics Order for the Interpolation of Head-Related Transfer Functions Sampled on Sparse Irregular Grids

open access: yesFrontiers in Signal Processing, 2022
Conventional individual head-related transfer function (HRTF) measurements are demanding in terms of measurement time and equipment. For more flexibility, free body movement (FBM) measurement systems provide an easy-to-use way to measure full-spherical ...
David Bau   +3 more
doaj   +1 more source

A Novel Sparse Polynomial Expansion Method for Interval and Random Response Analysis of Uncertain Vibro-Acoustic System

open access: yesShock and Vibration, 2021
For the vibro-acoustic system with interval and random uncertainties, polynomial chaos expansions have received broad and persistent attention. Nevertheless, the cost of the computation process increases sharply with the increasing number of uncertain ...
Shengwen Yin, Xiaohan Zhu, Xiang Liu
doaj   +1 more source

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