Extraction of Parallel Sentences

As explained in Chap. 1 and later developed in Chap. 6 , Machine Translation (MT) engines need to be trained with large numbers of parallel sentences or segments. The quantity and diversity of existing parallel text is limited however. This motivates the search for parallel sentences in comparable corpora. By exploring a larger share of the levels of comparability introduced in Sect. 1.2 , a much larger source of multilingual data can be obtained. Strongly comparable corpora such as Wikipedia entries [1, 62] or news text [2] are rife with parallel sentences and have been among the first to be explored.