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Geometry, moments and Bayesian networks with hidden variables
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UNSPECIFIED (1999) Geometry, moments and Bayesian networks with hidden variables. In: 7th International Workshop on Artificial Intelligence and Statistics (Uncertainty 99), FT LAUDERDALE, FL, JAN 03-06, 1999. Published in: ARTIFICIAL INTELLIGENCE AND STATISTICS 99, PROCEEDINGS pp. 293-298. ISBN 1-55860-589-4.
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Abstract
The purpose of this paper is to present a systematic way of analysing the geometry of the probability spaces for a particular class of Bayesian networks with hidden variables. It will be shown that the conditional independence statements implicit in such graphical models can be neatly expressed as simple polynomial relationships among central moments. This algebraic framework will enable us to explore and identify the structural constraints on the sample space induced by models with tree strcutures and therefore characterise the families of distributions consistent with such conditional independence assumptions.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software Q Science > QA Mathematics |
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Journal or Publication Title: | ARTIFICIAL INTELLIGENCE AND STATISTICS 99, PROCEEDINGS | ||||
Publisher: | MORGAN KAUFMANN PUB INC | ||||
ISBN: | 1-55860-589-4 | ||||
Editor: | Heckerman, D and Whittaker, J | ||||
Official Date: | 1999 | ||||
Dates: |
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Number of Pages: | 6 | ||||
Page Range: | pp. 293-298 | ||||
Publication Status: | Published | ||||
Title of Event: | 7th International Workshop on Artificial Intelligence and Statistics (Uncertainty 99) | ||||
Location of Event: | FT LAUDERDALE, FL | ||||
Date(s) of Event: | JAN 03-06, 1999 |
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