Processing of word alignments for compressing parallel corpora
For more information please the following paper: Felipe Sánchez-Martínez, Rafael C. Carrasco, Miguel A. Martínez-Prieto, Joaquín Adiego. Generalized biwords for bitext compression and translation spotting. In Journal of Artificial Intelligence Research 43:389-418. https://jair.org/index.php/jair/article/view/10754