Informatics Report Series



Related Pages

Report (by Number) Index
Report (by Date) Index
Author Index
Institute Index

Title:Products of Gaussians and Probabilistic Minor Component Analysis
Authors: Chris Williams ; Felix V. Agakov
Date:Jul 2001
Recently Hinton introduced the Products of Experts (PoE) architecture for density estimation, where individual expert probabilities are multiplied and re-normalized. We consider products of Gaussian ``pancakes'' equally elongated in all directions except one, and prove that the maximum likelihood solution for the model gives rise to a minor component analysis solution. We also discuss the covariance structure of sums and products of Gaussian pancakes or 1-factor probabilistic principal component analysis (PPCA) models.
2001 by The University of Edinburgh. All Rights Reserved
Links To Paper
No links available
Bibtex format
author = { Chris Williams and Felix V. Agakov },
title = {Products of Gaussians and Probabilistic Minor Component Analysis},
year = 2001,
month = {Jul},

Home : Publications : Report 

Please mail <> with any changes or corrections.
Unless explicitly stated otherwise, all material is copyright The University of Edinburgh