Empirical Analysis of Sampling Based Estimators for Evaluating RBMs
Abstract
The Restricted Boltzmann Machines (RBM) can be used either as classifiers or as generative models. The quality of the generative RBM is measured through the average log-likelihood on test data. Due to the high computational complexity of evaluating the partition function, exact calculation of test log-likelihood is very difficult. In recent years some estimation methods are suggested for approximate computation of test log-likelihood. In this paper we present an empirical comparison of the main estimation methods, namely, the AIS algorithm for estimating the partition function, the CSL method for directly estimating the log-likelihood, and the RAISE algorithm that combines these two ideas. We use the MNIST data set to learn the RBM and then compare these methods for estimating the test log-likelihood.
Keywords
Cite
@article{arxiv.1510.02255,
title = {Empirical Analysis of Sampling Based Estimators for Evaluating RBMs},
author = {Vidyadhar Upadhya and P. S. Sastry},
journal= {arXiv preprint arXiv:1510.02255},
year = {2015}
}
Comments
edited version of this manuscript will appear in proceedings of International Conference on Neural Information Processing (ICONIP) 2015