20. The method of claim 17 wherein training comprises assigning a variable in the graphical model to each associated term.
20. The method of claim 17 wherein training comprises assigning a variable in the graphical model to each associated term. 22. The method of claim 20 further comprising: creating a knowledge base from a medical ontology; wherein training comprises building a mining engine operable to search unstructured medical data as a function of the knowledge base.