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Table 6 The effect of cutoffs on the size and perplexity of a back-off trigram language model

From: A large vocabulary continuous speech recognition system for Persian language

Cutoffs
(bigram)
Cutoffs
(trigram)
Perplexity Size (MB)
0 0 134.54 36
0 1 134.76 20
0 2 135.82 17
1 1 143.18 10
1 2 143.26 7.8