/usr/include/irstlm/lmclass.h is in libirstlm-dev 5.80.03-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | // $Id: lmclass.h 3461 2010-08-27 10:17:34Z bertoldi $
/******************************************************************************
IrstLM: IRST Language Model Toolkit
Copyright (C) 2006 Marcello Federico, ITC-irst Trento, Italy
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifndef MF_LMCLASS_H
#define MF_LMCLASS_H
#ifndef WIN32
#include <sys/types.h>
#include <sys/mman.h>
#endif
#include "util.h"
#include "ngramcache.h"
#include "dictionary.h"
#include "n_gram.h"
#include "lmtable.h"
#define MAX_TOKEN 2
class lmclass: public lmtable
{
dictionary *dict; // dictionary (words - macro tags)
double *MapScore;
int MapScoreN;
int MaxMapSize;
protected:
void loadMap(std::istream& inp);
void loadMapElement(const char* in, const char* out, double sc);
void mapping(ngram &in, ngram &out);
inline double getMapScore(int wcode) {
//the input word is un-known by the map, so I "transform" this word into the oov (of the words)
if (wcode >= MapScoreN) {
wcode = getDict()->oovcode();
}
return MapScore[wcode];
};
inline size_t getMap(int wcode) {
//the input word is un-known by the map, so I "transform" this word into the oov (of the words)
if (wcode >= MapScoreN) {
wcode = getDict()->oovcode();
}
return dict->freq(wcode);
};
void checkMap();
public:
lmclass(float nlf=0.0, float dlfi=0.0);
~lmclass();
void load(const std::string filename,int mmap=0);
double lprob(ngram ng, double* bow=NULL,int* bol=NULL,char** maxsuffptr=NULL,unsigned int* statesize=NULL,bool* extendible=NULL);
inline double clprob(ngram ng,double* bow=NULL,int* bol=NULL,char** maxsuffptr=NULL,unsigned int* statesize=NULL,bool* extendible=NULL) {
return lprob(ng,bow,bol,maxsuffptr,statesize,extendible);
};
inline double clprob(int* ng, int ngsize, double* bow=NULL,int* bol=NULL,char** maxsuffptr=NULL,unsigned int* statesize=NULL,bool* extendible=NULL) {
ngram ong(getDict());
ong.pushc(ng,ngsize);
return lprob(ong,bow,bol,maxsuffptr,statesize,extendible);
};
inline dictionary* getDict() const {
return dict;
}
inline virtual void dictionary_incflag(const bool flag) {
dict->incflag(flag);
};
};
#endif
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