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SPHINX_LM_EVAL(1) General Commands Manual 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) -verbose Print details of perplexity calculation -wip Word insertion probability AUTHOR David Huggins-Daines <dhdaines@gmail.com> COPYRIGHT Copyright (C) 2007-2008 Carnegie Mellon University. See the file COPY- ING included with this package for more information. 2008-05-12 SPHINX_LM_EVAL(1)
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