A novel piecewise multivariate function approximation method via universal matrix representation

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14 Atıf (Scopus)

Özet

Multivariance in science and engineering causes problematic situations even for continous and discrete cases. One way to overcome this situation is to decrease the multivariance level of the problem by using a divide-and-conquer based method. In this sense, Enhanced Multivariance Product Representation (EMPR) plays a part in the considered scenario and acts successfully. This method brings up a finite expansion to represent a multivariate function in terms of less-variate functions with the assistance of univariate support functions. This work aims to propose a new EMPR based algorithm which has two new features that improves the determination process of each expansion component through Fluctuation Free Integration method, which is an efficient method in evaluating multiple integrals through a universal matrix representation, and increases the approximation quality through inserting a piecewise structure into the standard EMPR algorithm. This new method is called Fluctuation Free Integration based piecewise EMPR. Some numerical implementations are also given to examine the performance of this proposed method.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1784-1801
Sayfa sayısı18
DergiJournal of Mathematical Chemistry
Hacim51
Basın numarası7
DOI'lar
Yayın durumuYayınlandı - Ağu 2013

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