12. The tangible computer-readable medium of claim 7 , wherein the meta information comprises a user profile.
7. A tangible computer-readable medium storing medium instructions which, executed by a processor, cause the processor to perform operations for processing query, the operations comprising: receiving the query from a user; processing the query to locate a plurality of documents in accordance with a search engine having a discriminative classifier, wherein the discriminative classifier is trained with a plurality of artificial multi-label query examples, wherein the artificial multi-label query examples comprise simulated queries automatically generated from terms in the plurality of documents, wherein each of the artificial multi-label query examples further comprises a name and metadata information associated with the name, wherein one of the simulated queries comprises a plurality of the terms selected from the plurality of documents; retraining, the discriminative classifier based on an update to at least one the plurality of documents and based on an example derived from a log of previous searches; and presenting a result of the processing to the user.