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fwdtree and fwdflat

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Pankaj
2011-07-10
2012-09-22
  • Pankaj

    Pankaj - 2011-07-10

    Hi,

    Are the flags fwdtree and fwdflat mutually exclusive? I have observed in some
    places in the code that if fwdtree option is set then the code related to
    fwdflat is not executed?

    Pankaj

     
  • Nickolay V. Shmyrev

    No, they are designed to work together. First fwdtree search which is fast and
    efficient but not very accurate then fwdflat which is slower but more
    accurate. You might be interested to read some generic overview of the
    pocketsphinx in David's thesis which can give more detailed information about
    pocketsphinx.

    http://www.lti.cs.cmu.edu/Research/Thesis/huggins-
    daines,%20david.pdf

    There might be code which doesn't exectute fwdtree part because it will be
    done next on fwdflat stage but this cutoff is just an optimization of the
    duplicate workd.

     

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