NAME
sphinx_lm_eval - Evaluate perplexity of a transcription
SYNOPSIS
sphinx_lm_eval [ options ]...
DESCRIPTION
This program evaluates the perplexity of a text file according to a
given language model. The text file is assumed to be in transcript
format, i.e. one utterance per line, delimited by <s> and </s>.
-help Shows the usage of the tool
-lm model file
-lmctlfn
file listing a set of language models
-lmname
of language model in -lmctlfn to use for all utterances
-logbase
Base in which all log-likelihoods calculated
-lsn file to evaluate
-lw Language model weight
-mmap Use memory-mapped I/O for reading binary LM files
-probdef
definition file for classes in LM
-text string to evaluate
-uw Unigram probability weight (interpolated with uniform
distribution)
-wip Word insertion probability
AUTHOR
David Huggins-Daines <dhuggins@cs.cmu.edu>
COPYRIGHT
Copyright © 2007-2008 Carnegie Mellon University. See the file COPYING
included with this package for more information.
2008-05-12