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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* ====================================================================
* Copyright (c) 1999-2007 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,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ====================================================================
*
*/
/**
* @file ngram_model_set.h Set of language models.
* @author David Huggins-Daines <dhuggins@cs.cmu.edu>
*/
#ifndef __NGRAM_MODEL_SET_H__
#define __NGRAM_MODEL_SET_H__
#include "ngram_model_internal.h"
#include "lm3g_model.h"
/**
* Subclass of ngram_model for grouping language models.
*/
typedef struct ngram_model_set_s {
ngram_model_t base; /**< Base ngram_model_t structure. */
int32 n_models; /**< Number of models in this set. */
int32 cur; /**< Currently selected model, or -1 for none. */
ngram_model_t **lms; /**< Language models in this set. */
char **names; /**< Names for language models. */
int32 *lweights; /**< Log interpolation weights. */
int32 **widmap; /**< Word ID mapping for submodels. */
int32 *maphist; /**< Word ID mapping for N-Gram history. */
} ngram_model_set_t;
/**
* Iterator over a model set.
*/
struct ngram_model_set_iter_s {
ngram_model_set_t *set;
int32 cur;
};
#endif /* __NGRAM_MODEL_SET_H__ */
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