sphinx_lm_eval - Man Page
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 <dhdaines@gmail.com>
Copyright
Copyright © 2007-2008 Carnegie Mellon University. See the file COPYING included with this package for more information.