Hi, how do Moses calculate the probability of a sentence with an unknown word? How is the LM used?
I've estimated a 3-gram LM with IRSTLM for a base line system, according to the instructions in the Wiki. The arpa-file contains entries like: -7.2625 redescendue -0.1681 -7.2625 serviabilité -0.1681 -2.51072 <unk> -3.26915 cadre très -0.096544 -4.52727 cadre lors -4.57217 cadre seulement I suppose the first number is the probability and the second number is the "back-off weight". Is it used somehow? In that case, what happens when it's absent (4.52727 cadre lors) ? Yours, Per Tunedal _______________________________________________ Moses-support mailing list [email protected] http://mailman.mit.edu/mailman/listinfo/moses-support
