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FATAL: NGramModel: bad ngram model topology

BenoitFavre - 10 Sep 2012 - 09:18

I generated an ngram model from a .arpa file with the following command:

ngramread --ARPA lm.arpa > lm.model

ngramread does not complain, but ngraminfo and trying to load the model from C++ code generate the following error:

FATAL: NGramModel: bad ngram model topology

How can I troubleshoot the problem?

BenoitFavre - 10 Sep 2012 - 09:27

Adding verbosity results in more mystery...

ngraminfo --v=2 lm.model INFO: FstImpl::ReadHeader: source: lm.model, fst_type: vector, arc_type: standard, version: 2, flags: 3 INFO: Incomplete # of ascending n-grams: 1377525 FATAL: NGramModel: bad ngram model topology

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-- CyrilAllauzen - 09 Aug 2012

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Topic revision: r2 - 2012-09-10 - BenoitFavre
 
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