Given the clear inter-corpus differences we documented, and the high chat corpus error rate in particular, it would make sense to perform a detailed error analysis of our annotation, which in turn would allow us to genre-adjust the analysis lexicon, and permit the introduction of genre-specific rules into the parser in order to improve its performance.
the Europarl data boasts the longest words and longest sentences 6 , and scores highest for subordination and infinitive subclauses, as well as the rare past participle subclauses, all of which considerably complicate syntactic trees.