/**MAN





























































Sun Release 4.1         Last change: UCL                        1






DPREC(SFS1)       MISC. REFERENCE MANUAL PAGES        DPREC(SFS1)



NAME
     dprec - whole word template recogniser

SYNOPSIS
     dprec (-l|-r|-p) (-d database) (-f num) (-i item) (-t token)
     (-a) (-c) (-s) file(s)

DESCRIPTION
     dprec is an isolated word  recognizer  implemented  using  a
     dynamic  programming  algorithm.  It maintains a set of tem-
     plates (the database) from one run to the next, so  that  it
     can  add  templates  when  it  fails  to  recognise  a  word
     correctly.  If a template causes many mis recognitions  then
     it can be forgotten from the database.

     The dp program operates using  a  Euclidean  metric  between
     vectors of a "Coefficient" (CO) data set in the files (iden-
     tified by the "-i item" switch).  To identify a  token,  the
     'token' field in the main header of the input file is used.

     Options and their meanings are:

     -I         Identify program name and version number.

     -l         Learn mode.  If an input word is  not  recognised
                correctly,  then  add  it to the database of tem-
                plates.

     -r         Recognition mode.  Find the closest token to each
                input  file  using  the  database  of  templates.
                Default.

     -p         Purge database of unused  templates.  (Non  func-
                tional)

     -ddatabase Specify the file to  use  to  collect  templates.
                This is just an SFS file.  Default: dprec.sfs.

     -fnum      Cause  templates  that  cause   more   than   num
                misrecognitions to be forgotten.

     -iitem     Select input item number.

     -a         Save all templates seen during training.

     -c         Clear all scores of  recognition  success/failure
                (see -f switch)

     -s         Print scores of recognition  success/failure  for
                each template.





Sun Release 4.1         Last change: UCL                        1






DPREC(SFS1)       MISC. REFERENCE MANUAL PAGES        DPREC(SFS1)



INPUT ITEMS
     CO.xx      Any Coefficient item.

VERSION/AUTHOR
     1.0        Mark Huckvale

BUGS
     Although the database of templates looks like an  SFS  file,
     in  fact the header token field is used to maintain the tem-
     plate match history, so items may not be added or deleted by
     external programs.  */

SOURCE
     /users/mark/sfs/man/../contrib/asr/dprec.c









































Sun Release 4.1         Last change: UCL                        2



