?? contextstat.h
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/****************************************************************************
*
* Copyright (c) 2000, 2001
* Machine Group
* Software Research Lab.
* Institute of Computing Tech.
* Chinese Academy of Sciences
* All rights reserved.
*
* This file is the confidential and proprietary property of
* Institute of Computing Tech. and the posession or use of this file requires
* a written license from the author.
* Filename: ContextStat.h
* Abstract:
*
* interface for the CContextStat class.
* Author: Kevin Zhang
* (zhanghp@software.ict.ac.cn)
* Date: 2002-1-24
*
* Notes:
*
*
****************************************************************************/
#if !defined(AFX_CONTEXTSTAT_H__DA515FDC_F8F9_48F6_B25D_D2B91011528B__INCLUDED_)
#define AFX_CONTEXTSTAT_H__DA515FDC_F8F9_48F6_B25D_D2B91011528B__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
struct tagContext{
int nKey;//The key word
int **aContextArray;//The context array
int *aTagFreq;//The total number a tag appears
int nTotalFreq;//The total number of all the tags
struct tagContext *next;//The chain pointer to next Context
};
typedef struct tagContext MYCONTEXT,*PMYCONTEXT;
class CContextStat
{
public:
bool SetTableLen(int nTableLe);
int GetFrequency(int nKey,int nSymbol);
double GetContextPossibility(int nKey,int nPrev,int nCur);
bool Load(char *sFilename);
bool Save(char *sFilename);
bool Add(int nKey,int nPrevSymbol,int nCurrentSymbol,int nFrequency);
bool SetSymbol(int *nSymbol);
CContextStat();
virtual ~CContextStat();
private:
int m_nTableLen;
int *m_pSymbolTable;
PMYCONTEXT m_pContext;
int m_nCategory;
protected:
bool GetItem(int nKey,PMYCONTEXT *pItemRet);
};
#endif // !defined(AFX_CONTEXTSTAT_H__DA515FDC_F8F9_48F6_B25D_D2B91011528B__INCLUDED_)
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