| .TH SPHINX_LM_EVAL 1 "2008-05-12" | |
| .SH NAME | |
| sphinx_lm_eval \- Evaluate perplexity of a transcription | |
| .SH SYNOPSIS | |
| .B sphinx_lm_eval | |
| [\fI options \fR]... | |
| .SH DESCRIPTION | |
| .PP | |
| 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>. | |
| .TP | |
| .B \-help | |
| Shows the usage of the tool | |
| .TP | |
| .B \-lm | |
| model file | |
| .TP | |
| .B \-lmctlfn | |
| file listing a set of language models | |
| .TP | |
| .B \-lmname | |
| of language model in \fB\-lmctlfn\fR to use for all utterances | |
| .TP | |
| .B \-logbase | |
| Base in which all log-likelihoods calculated | |
| .TP | |
| .B \-lsn | |
| file to evaluate | |
| .TP | |
| .B \-lw | |
| Language model weight | |
| .TP | |
| .B \-mmap | |
| Use memory-mapped I/O for reading binary LM files | |
| .TP | |
| .B \-probdef | |
| definition file for classes in LM | |
| .TP | |
| .B \-text | |
| string to evaluate | |
| .TP | |
| .B \-uw | |
| Unigram probability weight (interpolated with uniform distribution) | |
| .TP | |
| .B \-verbose | |
| Print details of perplexity calculation | |
| .TP | |
| .B \-wip | |
| Word insertion probability | |
| .SH AUTHOR | |
| David Huggins-Daines <dhdaines@gmail.com> | |
| .SH COPYRIGHT | |
| Copyright \(co 2007-2008 Carnegie Mellon University. See the file | |
| \fICOPYING\fR included with this package for more information. | |
| .br | |