sum of out-transition probabilities != 1.0 ?

Matthias Thomae thomae at ei.tum.de
Fri Feb 7 07:35:48 PST 2003


Hello SRILM users,

how is it possible that PFSGs, generated with ngram-count and
make-ngram-pfsg (default discounting) have nodes whose sum of the
probabilities of all outgoing transitions do not sum to 1.0 (but, e.g.,
1.1)?

I thought this was an important constraint, but maybe I am missing some
theory...

Regards.
Matthias




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