57 lines
1.2 KiB
Groff
57 lines
1.2 KiB
Groff
.TH SPHINX_LM_EVAL 1 "2008-05-12"
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.SH NAME
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sphinx_lm_eval \- Evaluate perplexity of a transcription
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.SH SYNOPSIS
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.B sphinx_lm_eval
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[\fI options \fR]...
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.SH DESCRIPTION
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.PP
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This program evaluates the perplexity of a text file according to a
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given language model. The text file is assumed to be in transcript
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format, i.e. one utterance per line, delimited by <s> and </s>.
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.TP
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.B \-help
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Shows the usage of the tool
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.TP
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.B \-lm
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model file
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.TP
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.B \-lmctlfn
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file listing a set of language models
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.TP
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.B \-lmname
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of language model in \fB\-lmctlfn\fR to use for all utterances
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.TP
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.B \-logbase
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Base in which all log-likelihoods calculated
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.TP
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.B \-lsn
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file to evaluate
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.TP
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.B \-lw
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Language model weight
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.TP
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.B \-mmap
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Use memory-mapped I/O for reading binary LM files
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.TP
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.B \-probdef
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definition file for classes in LM
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.TP
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.B \-text
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string to evaluate
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.TP
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.B \-uw
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Unigram probability weight (interpolated with uniform distribution)
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.TP
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.B \-verbose
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Print details of perplexity calculation
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.TP
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.B \-wip
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Word insertion probability
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.SH AUTHOR
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David Huggins-Daines <dhuggins@cs.cmu.edu>
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.SH COPYRIGHT
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Copyright \(co 2007-2008 Carnegie Mellon University. See the file
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\fICOPYING\fR included with this package for more information.
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.br
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