DocumentCode :
2230789
Title :
Maximum entropy approach to probability density estimation
Author :
Miller, Gad ; Horn, David
Author_Institution :
Sch. of Phys. & Astron., Tel Aviv Univ., Israel
Volume :
1
fYear :
1998
fDate :
21-23 Apr 1998
Firstpage :
225
Abstract :
We propose a method for estimating probability density functions (pdf) and conditional density functions (cdf) by training on data produced by such distributions. The algorithm employs new stochastic variables that amount to coding of the input, using a principle of entropy maximization. It is shown to be closely related to the maximum likelihood approach. The encoding step of the algorithm provides an estimate of the probability distribution. The decoding step serves as a generative mode, producing an ensemble of data with the desired distribution. The algorithm is readily implemented by neural networks, using stochastic gradient ascent to achieve entropy maximization
Keywords :
gradient methods; maximum entropy methods; maximum likelihood estimation; neural nets; probability; conditional density functions; encoding; input coding; maximum entropy approach; maximum likelihood approach; probability density estimation; probability density functions; probability distribution; stochastic gradient ascent; stochastic variables; Astronomy; Density functional theory; Encoding; Entropy; Maximum likelihood decoding; Maximum likelihood estimation; Neural networks; Physics; Probability distribution; Stochastic processes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Knowledge-Based Intelligent Electronic Systems, 1998. Proceedings KES '98. 1998 Second International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-4316-6
Type :
conf
DOI :
10.1109/KES.1998.725851
Filename :
725851
Link To Document :
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