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_dmp32.c DMP32 format language models 00039 * 00040 * Author: David Huggins-Daines <dhuggins@cs.cmu.edu> 00041 */ 00042 00043 #include "ckd_alloc.h" 00044 #include "ngram_model_internal.h" 00045 00046 static ngram_funcs_t ngram_model_dmp32_funcs; 00047 00048 ngram_model_t * 00049 ngram_model_dmp32_read(cmd_ln_t *config, 00050 const char *file_name, 00051 logmath_t *lmath) 00052 { 00053 ngram_model_t *model; 00054 00055 model = ckd_calloc(1, sizeof(*model)); 00056 model->funcs = &ngram_model_dmp32_funcs; 00057 return model; 00058 } 00059 00060 int 00061 ngram_model_dmp32_write(ngram_model_t *model, 00062 const char *file_name) 00063 { 00064 return -1; 00065 } 00066 00067 static int 00068 ngram_model_dmp32_apply_weights(ngram_model_t *model, float32 lw, 00069 float32 wip, float32 uw) 00070 { 00071 return 0; 00072 } 00073 00074 static int32 00075 ngram_model_dmp32_score(ngram_model_t *model, int32 wid, 00076 int32 *history, int32 n_hist, 00077 int32 *n_used) 00078 { 00079 return model->log_zero; 00080 } 00081 00082 static int32 00083 ngram_model_dmp32_raw_score(ngram_model_t *model, int32 wid, 00084 int32 *history, int32 n_hist, 00085 int32 *n_used) 00086 { 00087 return model->log_zero; 00088 } 00089 00090 static void 00091 ngram_model_dmp32_free(ngram_model_t *base) 00092 { 00093 ckd_free(base); 00094 } 00095 00096 static ngram_funcs_t ngram_model_dmp32_funcs = { 00097 ngram_model_dmp32_free, /* free */ 00098 ngram_model_dmp32_apply_weights, /* apply_weights */ 00099 ngram_model_dmp32_score, /* score */ 00100 ngram_model_dmp32_raw_score, /* raw_score */ 00101 NULL /* add_ug */ 00102 };