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)
- -verbose
-
Print details of perplexity calculation
- -wip
-
Word insertion probability
AUTHOR
David Huggins-Daines <[email protected]>
COPYRIGHT
Copyright © 2007-2008 Carnegie Mellon University. See the file COPYING included with this package for more information.