2. The method of claim 1 wherein the domain-adapted feature comprises at least one of: a domain-adapted lexical feature; and a domain-adapted phrasal feature.
2. The method of claim 1 wherein the domain-adapted feature comprises at least one of: a domain-adapted lexical feature; and a domain-adapted phrasal feature. 4. The method of claim 2 , wherein the domain-adapted feature comprises at least one domain-adapted phrasal feature and wherein the domain-adapted phrasal feature is computed as a function of a parallel phrase probability and a monolingual phrase probability for each of a plurality of phrases of one of the source text string and the target text string, each parallel phrase probability being a function of co-occurrence, in a parallel corpus of source and target strings, of that phrase with a corresponding phrase of the other of the source text string and target text string, each monolingual phrase probability being a function of the occurrence of that phrase in a respective monolingual corpus.