1. A system for processing documents comprising: a memory; a processor unit in communication with the memory that performs a method comprising: constructing a hidden feature space from one or more text document examples of a source domain, said one or more text document examples tagged with one or more labels of a source domain label space; and, simultaneously training one or more classifiers for use in classifying text documents, said classifiers trained on said one or more text document examples and said hidden feature space; receiving, at said processor device, one or more abbreviated text document examples from a target domain; reconstructing, at said processor device, said partially observed text document examples of said target domain based on said constructed hidden feature space; and, predicting the labels of said abbreviated text document examples based on the reconstructed target domain text document examples and said one or more trained classifiers.
1. A system for processing documents comprising: a memory; a processor unit in communication with the memory that performs a method comprising: constructing a hidden feature space from one or more text document examples of a source domain, said one or more text document examples tagged with one or more labels of a source domain label space; and, simultaneously training one or more classifiers for use in classifying text documents, said classifiers trained on said one or more text document examples and said hidden feature space; receiving, at said processor device, one or more abbreviated text document examples from a target domain; reconstructing, at said processor device, said partially observed text document examples of said target domain based on said constructed hidden feature space; and, predicting the labels of said abbreviated text document examples based on the reconstructed target domain text document examples and said one or more trained classifiers. 4. The system as claimed in claim 1 , wherein said constructing comprises: determining, from said source domain, a set of bases for reconstructing said abbreviated text document examples; and, determining a set of classifiers for classifying said reconstructed abbreviated text document examples.