SyMGiza++ \u2014 a tool that computes symmetric word alignment models with the capability to take advantage of multi-processor systems \u2014 is presented. A series of fairly simple modifications to the original IBM\/Giza++ word alignment models allows to update the symmetrized models between chosen iterations of the original training algorithms. We achieve a relative alignment quality improvement of more than 17% compared to Giza++ and MGiza++ on the standard Canadian Hansards task, while maintaining the speed improvements provided by the capability of parallel computations of MGiza++.<\/p>\n
Furthermore, the alignment models are evaluated in the context of phrase-based statistical machine translation, where a consistent improvement measured in BLEU scores can be observed when SyMGiza++ is used instead of Giza++ or MGiza++.<\/p>\n","protected":false},"excerpt":{"rendered":"
SyMGiza++ \u2014 a tool that computes symmetric word alignment models with the capability to take advantage of multi-processor systems \u2014 is presented. A series of fairly simple modifications to the original IBM\/Giza++ word alignment models allows to update the symmetrized models between chosen iterations of the original training algorithms. 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