A Reweighted Scheme to Improve the Representation of the Neural Autoregressive Distribution Estimator.

Abstract:

:The neural autoregressive distribution estimator(NADE) is a competitive model for the task of density estimation in the field of machine learning. While NADE mainly focuses on the problem of estimating density, the ability for dealing with other tasks remains to be improved. In this paper, we introduce a simple and efficient reweighted scheme to modify the parameters of the learned NADE. We make use of the structure of NADE, and the weights are derived from the activations in the corresponding hidden layers. The experiments show that the features from unsupervised learning with our reweighted scheme would be more meaningful, and the performance of the initialization for neural networks has a significant improvement as well.

journal_name

Comput Intell Neurosci

authors

Wang Z,Wu Q

doi

10.1155/2018/6401645

subject

Has Abstract

pub_date

2018-12-23 00:00:00

pages

6401645

eissn

1687-5265

issn

1687-5273

journal_volume

2018

pub_type

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