demgpard

Purpose

Demonstrate ARD using a Gaussian Process.

Synopsis

demgpare

Description

The data consists of three input variables x1, x2 and x3, and one target variable t. The target data is generated by computing sin(2*pi*x1) and adding Gaussian noise, x2 is a copy of x1 with a higher level of added noise, and x3 is sampled randomly from a Gaussian distribution. A Gaussian Process, is trained by optimising the hyperparameters using the scaled conjugate gradient algorithm. The final values of the hyperparameters show that the model successfully identifies the importance of each input.

See Also

demgp, gp, gperr, gpfwd, gpgrad, gpinit, scg
Pages: Index

Copyright (c) Ian T Nabney (1996-9)