/usr/include/sphinx3/interp.h is in libs3decoder-dev 0.8-0ubuntu1.
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/* ====================================================================
* Copyright (c) 1995-2004 Carnegie Mellon University. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* This work was supported in part by funding from the Defense Advanced
* Research Projects Agency and the National Science Foundation of the
* United States of America, and the CMU Sphinx Speech Consortium.
*
* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ====================================================================
*
*/
/*
* interp.h -- CD-senone and CI-senone score interpolation
*
* **********************************************
* CMU ARPA Speech Project
*
* Copyright (c) 1996 Carnegie Mellon University.
* ALL RIGHTS RESERVED.
* **********************************************
*
* HISTORY
* $Log$
* Revision 1.1 2006/04/05 20:27:30 dhdfu
* A Great Reorganzation of header files and executables
*
* Revision 1.6 2006/02/22 16:48:30 arthchan2003
* Merged from SPHINX3_5_2_RCI_IRII_BRANCH: 1, Fixed issues in , 2, Fixed issues of dox-doc
*
* Revision 1.5.4.1 2005/07/05 05:47:59 arthchan2003
* Fixed dox-doc. struct level of documentation are included.
*
* Revision 1.5 2005/06/21 18:39:04 arthchan2003
* Log. 1, Fixed doxygen documentation, 2, Added $Log$
* Revision 1.1 2006/04/05 20:27:30 dhdfu
* A Great Reorganzation of header files and executables
*
* Log. 1, Fixed doxygen documentation, 2, Added Revision 1.6 2006/02/22 16:48:30 arthchan2003
* Log. 1, Fixed doxygen documentation, 2, Added Merged from SPHINX3_5_2_RCI_IRII_BRANCH: 1, Fixed issues in , 2, Fixed issues of dox-doc
* Log. 1, Fixed doxygen documentation, 2, Added
*
* Revision 1.4 2005/06/13 04:02:55 archan
* Fixed most doxygen-style documentation under libs3decoder.
*
* Revision 1.3 2005/03/30 01:22:47 archan
* Fixed mistakes in last updates. Add
*
*
* 05-Jun-96 M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University
* Created.
*/
#ifndef _LIBFBS_INTERP_H_
#define _LIBFBS_INTERP_H_
#include <s3types.h>
#include <logmath.h>
/** \file interp.h \brief Interpolation of CD/CI senones.
* Interpolation is used in the time of SCHMM and it is still a very
* useful technique for CDHMM as some experiments shown in Broadcast
* news evaluation in 99.
*/
#ifdef __cplusplus
extern "C" {
#endif
#if 0
} /* Fool Emacs into not indenting things. */
#endif
/**
* \struct interp_t
* \brief Wrapper structure of CD/CI interpolation
*/
typedef struct {
logmath_t *logmath;
int32 n_sen; /**< #senones */
/**
* \struct interp_wt_s
* \brief Quick and Dirty wrapper of the CD and CI weight
*/
struct interp_wt_s {
int32 cd; /**< logs3(CD senone weight) */
int32 ci; /**< logs3(1 - cd) */
} *wt; /**< wt[i] = interpolation weight for senone i */
} interp_t;
/**
* Read a set of CD/CI senone interpolation weights from the given file.
* Return value: pointer to interpolation structure created. Caller MUST NOT change its
* contents.
* @return an initialized interp_t structure
*/
interp_t *interp_init (const char *interpfile, /* In: interpolation weights file */
logmath_t *logmath
);
/**
* Interpolate a single given CD senone with the given CI senone score.
* @return 0 if successful, -1 otherwise.
*/
int32 interp_cd_ci (interp_t *ip, /**< In: Interpolation weights parameters */
int32 *senscr, /**< In/Out: senscr[cd] interpolated with senscr[ci] */
int32 cd, /**< In: see senscr above */
int32 ci /**< In: see senscr above */
);
/**
* Interpolate each CD senone with its corresponding CI senone score.
* @return 0 if successful, -1 otherwise.
*/
int32 interp_all (interp_t *ip, /**< In: Interpolation weights parameters */
int32 *senscr, /**< In/Out: senscr[cd] interpolated with
senscr[cimap[cd]], for cd >= n_ci_sen */
s3senid_t *cimap, /**< In: see senscr above */
int32 n_ci_sen /**< In: see senscr above */
);
#if 0
{ /* Stop indent from complaining */
#endif
#ifdef __cplusplus
}
#endif
#endif
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