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src/libsphinxbase/lm/ngram_model_arpa.h

00001 /* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
00002 /* ====================================================================
00003  * Copyright (c) 1999-2007 Carnegie Mellon University.  All rights
00004  * reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions
00008  * are met:
00009  *
00010  * 1. Redistributions of source code must retain the above copyright
00011  *    notice, this list of conditions and the following disclaimer. 
00012  *
00013  * 2. Redistributions in binary form must reproduce the above copyright
00014  *    notice, this list of conditions and the following disclaimer in
00015  *    the documentation and/or other materials provided with the
00016  *    distribution.
00017  *
00018  * This work was supported in part by funding from the Defense Advanced 
00019  * Research Projects Agency and the National Science Foundation of the 
00020  * United States of America, and the CMU Sphinx Speech Consortium.
00021  *
00022  * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND 
00023  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
00024  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00025  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
00026  * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00027  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
00028  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
00029  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
00030  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
00031  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
00032  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033  *
00034  * ====================================================================
00035  *
00036  */
00037 /*
00038  * \file ngram_model_arpa.h ARPABO text format for N-Gram models
00039  *
00040  * Author: David Huggins-Daines <dhuggins@cs.cmu.edu>
00041  */
00042 
00043 #ifndef __NGRAM_MODEL_ARPA_H__
00044 #define __NGRAM_MODEL_ARPA_H__
00045 
00046 #include "ngram_model_internal.h"
00047 #include "lm3g_model.h"
00048 
00052 struct bigram_s {
00053     uint32 wid; 
00054     uint16 prob2;       
00055     uint16 bo_wt2;      
00056     uint16 trigrams;    
00058 };
00059 
00066 struct trigram_s {
00067     uint32 wid;   
00068     uint16 prob3; 
00069 };
00070 
00071 
00075 typedef struct ngram_model_arpa_s {
00076     ngram_model_t base;  
00077     lm3g_model_t lm3g;  
00079     /* Arrays of unique bigram probs and bo-wts, and trigram probs
00080      * (these are temporary, actually) */
00081     sorted_list_t sorted_prob2;
00082     sorted_list_t sorted_bo_wt2;
00083     sorted_list_t sorted_prob3;
00084 } ngram_model_arpa_t;
00085 
00086 #endif /* __NGRAM_MODEL_ARPA_H__ */

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