A functional density-based nonparametric approach for statistical calibration

  • Authors:
  • Noslen Hernández;Rolando J. Biscay;Nathalie Villa-Vialaneix;Isneri Talavera

  • Affiliations:
  • Advanced Technology Application Centre, Cuba;Institute of Mathematics, Physics and Cybernetics, Cuba and Departamento de Estadística de la Universisad de Valparaíso, CIMFAV, Chile;Institut de Mathématiques de Toulouse, Université de Toulouse France and IUT de Perpignan, Département STID, Carcassonne, France;Advanced Technology Application Centre, Cuba

  • Venue:
  • CIARP'10 Proceedings of the 15th Iberoamerican congress conference on Progress in pattern recognition, image analysis, computer vision, and applications
  • Year:
  • 2010

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Abstract

In this paper a new nonparametric functional method is introduced for predicting a scalar random variable Y from a functional random variable X. The resulting prediction has the form of a weighted average of the training data set, where the weights are determined by the conditional probability density of X given Y, which is assumed to be Gaussian. In this way such a conditional probability density is incorporated as a key information into the estimator. Contrary to some previous approaches, no assumption about the dimensionality of E(X|Y = y) is required. The new proposal is computationally simple and easy to implement. Its performance is shown through its application to both simulated and real data.