sphinx_lm_eval(1)
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 distribu
- tion)
- -wip Word insertion probability
AUTHOR
David Huggins-Daines <dhuggins@cs.cmu.edu>
COPYRIGHT
- Copyright (C) 2007-2008 Carnegie Mellon University. See the file COPYING included with this package for more information.