A simple way of retrieving parallel sentences from comparable articles is to align the sentences in source and target pages together using a sentence alignment algorithm (Gale and Church, 1993;Fung and Church, 1994;Wu, 1994;Moore, 2002).
these aligners are designed to align parallel corpora in which the source and target sentences are in the same order (i.e., no cross-alignment) or in proximity to each other and in which each sentence has only one matching sentence (i.e., no many-tomany alignment).