11. A machine translation system that immediately incorporates post-edits into a machine translation model during translation of a document, the machine translation system comprising: a processor; and a memory for storing logic that is executed by the processor to: receive a post-edit of a target sentence unit of a machine translated sentence pair of a set of machine translated sentence pairs, wherein a machine translated sentence pair comprises a source sentence unit and the target sentence unit; receive a post-edited machine translated sentence pair, the post-edited machine translated sentence pair comprising a post-edited source sentence unit and a post-edited target sentence unit; update the machine translation model by: performing an alignment of the post-edits of the machine translated sentence pair to generate phrases; and adding the phrases to the machine translation model; adapt a language model from the post-edited target sentence unit; calculate translation statistics for the post-edits; adjust translation weights using the translation statistics while generating test machine translations of the machine translated sentence pair until one of the test machine translations approximately matches the post-edits for the machine translated sentence pair; and retranslate remaining machine translation sentence pairs that have yet to be post-edited using the updated machine translation model.
11. A machine translation system that immediately incorporates post-edits into a machine translation model during translation of a document, the machine translation system comprising: a processor; and a memory for storing logic that is executed by the processor to: receive a post-edit of a target sentence unit of a machine translated sentence pair of a set of machine translated sentence pairs, wherein a machine translated sentence pair comprises a source sentence unit and the target sentence unit; receive a post-edited machine translated sentence pair, the post-edited machine translated sentence pair comprising a post-edited source sentence unit and a post-edited target sentence unit; update the machine translation model by: performing an alignment of the post-edits of the machine translated sentence pair to generate phrases; and adding the phrases to the machine translation model; adapt a language model from the post-edited target sentence unit; calculate translation statistics for the post-edits; adjust translation weights using the translation statistics while generating test machine translations of the machine translated sentence pair until one of the test machine translations approximately matches the post-edits for the machine translated sentence pair; and retranslate remaining machine translation sentence pairs that have yet to be post-edited using the updated machine translation model. 12. The machine translation system according to claim 11 , wherein the processor further executes the logic to: receive the document for translation from a source language into a target language; and perform a machine translation of the document to generate the set of machine translated sentence pairs.