Egyptian Arabic to EnglishStatistical Machine Translation Systemfor NIST OpenMT’2015
Table 8: Experiments with different training data combinations (bitext concatenations, phrase table merging, and backoff), testing on SMS as the target genre.
['Training data', 'Test', 'TestG']
Note that the results on Test and on TestG differ a lot, and thus we focus on Test as it is much larger. We can see that the best way to combine SMS, CHT and CTS is simply to concatenate them, which yields +2.5 BLEU points of improvement absolute over training on SMS data only.