18. The method of claim 11 , wherein said identifying the schema information comprises: identifying schema information expressed in a source schema; and mapping the schema information expressed in the source schema to schema information expressed in a target schema.
11. A method using electronic computing functionality to provide implicit labels for use in training a statistical tagging model, comprising: identifying, using the electronic computing functionality, items selected by users in association with queries submitted by the users; identifying, using the electronic computing functionality, schema information associated with the items; selecting, using the electronic computing functionality, implicit labels associated with the queries, based on the schema information training a tagging model based, at least in part, on a training set that includes the implicit labels; and using the tagging model to associate terms of an input query with labels to transform the input query to a structured query.