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Summary: Lifted FirstOrder Probabilistic Inference
Rodrigo de Salvo Braz and Eyal Amir and Dan Roth
University of Illinois at UrbanaChampaign
Department of Computer Science
201 N Goodwin Ave, Urbana, IL 618012302
braz@uiuc.edu, {eyal,danr}@cs.uiuc.edu
Abstract
Most probabilistic inference algorithms are speci
fied and processed on a propositional level. In the
last decade, many proposals for algorithms accept
ing firstorder specifications have been presented,
but in the inference stage they still operate on a
mostly propositional representation level. [Poole,
2003] presented a method to perform inference di
rectly on the firstorder level, but this method is
limited to special cases. In this paper we present the
first exact inference algorithm that operates directly
on a firstorder level, and that can be applied to any
firstorder model (specified in a language that gen
eralizes undirected graphical models). Our exper
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