- Ralf D. Brown, Jae Dong Kim, Peter J. Jansen, J. Carbonell. 2005. Symmetric Probabilistic Alignment. Abstract: We recently decided to develop a new alignment algorithm for the purpose of improving our Example-Based Machine Translation (EBMT) system's performance, since subsentential alignment is critical in locating the correct translation for a matched fragment of the input. Unlike most algorithms in the literature, this new Symmetric Probabilistic Alignment (SPA) algorithm treats the source and target languages in a symmetric fashion. 
