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BLOG: probabilistic models with unknown objects

Published: 30 July 2005 Publication History

Abstract

This paper introduces and illustrates BLOG, a formal language for defining probability models over worlds with unknown objects and identity uncertainty. BLOG unifies and extends several existing approaches. Subject to certain acyclicity constraints, every BLOG model specifies a unique probability distribution over first-order model structures that can contain varying and unbounded numbers of objects. Furthermore, complete inference algorithms exist for a large fragment of the language. We also introduce a probabilistic form of Skolemization for handling evidence.

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cover image Guide Proceedings
IJCAI'05: Proceedings of the 19th international joint conference on Artificial intelligence
July 2005
1775 pages

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  • The International Joint Conferences on Artificial Intelligence, Inc.

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Morgan Kaufmann Publishers Inc.

San Francisco, CA, United States

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Published: 30 July 2005

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