The format of the tech reports ID number is TR-CS-YYYY-NN, where YYYY is the four digit year and NN is the number, including leading zeroes. For the first tech report of 2004, the search would be "TR-CS-2004-01".
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TR-CS-2003-01
EM Learning of Product Distributions in a First-Order Stochastic
Logic Language
Daniel Pless and George Luger
We describe a new logic-based stochastic modeling language called Loopy Logic. It is an extension of the Bayesian logic programming approach of Kersting and De Raedt [2000]. We specialize the Kersting and De Raedt formalism by suggesting that product distributions are an effective combining rule for Horn clause heads. We use a refinement of Pearl's loopy belief propagation [Pearl, 1998] for the inference algorithm. We also extend the Kersting and De Raedt language by adding learnable distributions. We propose a message passing algorithm based on Expectation Maximization [Dempster et al., 1977] for estimating the learned parameters in the general case of models built in our system. We have also added some additional utilities to our logic language including second order unification and equality predicates.
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