Title Neural-Network-Based Curve Fitting Using Totally Positive Rational Bases
Authors Gonzalez-Diaz, Rocio , Mainar, E. , PALUZO HIDALGO, EDUARDO, Rubio, B.
External publication Si
Means Mathematics
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 2
JCR Impact 2.258
SJR Impact 0.495
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097558221&doi=10.3390%2fmath8122197&partnerID=40&md5=54168695e30f0fb0f0c97c695e16d085
Publication date 01/12/2020
ISI 000602162200001
Scopus Id 2-s2.0-85097558221
DOI 10.3390/math8122197
Abstract This paper proposes a method for learning the process of curve fitting through a general class of totally positive rational bases. The approximation is achieved by finding suitable weights and control points to fit the given set of data points using a neural network and a training algorithm, called AdaMax algorithm, which is a first-order gradient-based stochastic optimization. The neural network presented in this paper is novel and based on a recent generalization of rational curves which inherit geometric properties and algorithms of the traditional rational Bezier curves. The neural network has been applied to different kinds of datasets and it has been compared with the traditional least-squares method to test its performance. The obtained results show that our method can generate a satisfactory approximation.
Keywords normalized totally positive bases; normalized B-bases; rational bases; curve fitting; neural network
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