/************************************************
*?《WEB數(shù)據(jù)挖掘與知識(shí)發(fā)現(xiàn)》試驗(yàn)報(bào)告實(shí)現(xiàn)程序?????*
*?功能：采用TFIDF自動(dòng)對(duì)文本進(jìn)行形式化（題目6）??*
*?????????????*
*?時(shí)間：2008.2.28???????????????????????????????*
************************************************/

#include
#include
#include
#include

#define?FNUM??20???//使用的文件總個(gè)數(shù)

struct?Ttree
{
	char?data[20];
	double?weight;
	double?num;???????????//一篇文獻(xiàn)中的某一索引詞出現(xiàn)的次數(shù)
	double?max;???????????//一篇文獻(xiàn)的總字?jǐn)?shù)
	double?n;?????????????//索引詞出現(xiàn)在幾個(gè)文檔中
	struct?Ttree?*lchild;?//左兒子
	struct?Ttree?*rchild;?//右兒子
};

struct?Ttree?*rootW=NULL;
struct?Ttree?*mtree=NULL*ntree=NULL*rtree=NULL;??//定義weight權(quán)值排序函數(shù)中間變量****3月2日增加


FILE?*fp=fopen（“mm.txt““w“）;

//創(chuàng)建二叉樹用來(lái)存放單詞，以及該詞在文檔中出現(xiàn)的次數(shù)
Ttree?*createTtree（Ttree?*rootFILE?*fp）{
	int?i=0t=0;
	struct?Ttree?*p*q;??????????????//定義中間指針變量
	char?ch;
	p=（Ttree*）malloc（sizeof（Ttree））;?//申請(qǐng)新的存儲(chǔ)空間
	p->data[0]=‘\0‘;
	p->max=0;????????????????????????//**************3月1日增加
	if（fp==NULL）
	{
		printf（“\nCannot?open?file?strike?any?key?exit!“）;
		return?NULL;
	}
	ch=fgetc（fp）;
	while（（ch!=EOF）&&（t==0））
	{?
		if（（ch>=‘a(chǎn)‘&&ch<=‘z‘）||（ch>=‘A‘&&ch<=‘Z‘））{
			if（ch<=‘Z‘）?ch=ch+32;
			p->data[i]=ch;
			i++;
		}
		else
		{
			if（p->data[0]==‘\0‘）{
				ch=fgetc（fp）;
				continue;
			}
			p->data[i]=‘\0‘;
			p->max++;
			p->n=1;
			p->num=1;
			i=0;
			t=1;
			p->lchild=NULL;
			p->rchild=NULL;???????????//初始化頭節(jié)點(diǎn)的左右兒子為空指針
			root=p;
		}
		ch=fgetc（fp）;
	}
????q=（Ttree*）malloc（sizeof（Ttree））;
????q->data[0]=‘\0‘?;
	while（ch!=EOF）{
		if（?（ch>=‘a(chǎn)‘&&ch<=‘z‘）?||?（ch>=‘A‘&&ch<=‘Z‘）?）?{
			if（ch<=‘Z‘）?ch=ch+32;
			q->data[i]=ch;
			i++;
			ch=fgetc（fp）;
		}
????????else{
			if（q->data[0]==‘\0‘）
			{
				ch=fgetc（fp）;
				continue;
			}
			q->data[i]=‘\0‘;
			root->max++;
			q->n=1;
			q->num=1;
			i=0;
			q->lchild=NULL;
			q->rchild=NULL;????????????????????//初始化頭節(jié)點(diǎn)的左右兒子為空指針
			if（p==NULL）p=root;
			ch=fgetc（fp）;
			while（p!=NULL）?????????????????????//尋找待插入節(jié)點(diǎn)的位置
			{
				if（strcmp（q->datap->data）<0）{?//如果待插入的節(jié)點(diǎn)的值小于當(dāng)前節(jié)點(diǎn)的值，
					if（p->lchild==NULL）????????//且其左子樹為空
					{
						p->lchild=q;???????????//??則插入
						p=NULL;
					}??????????????????????????//并置當(dāng)前節(jié)點(diǎn)為空，退出當(dāng)前的while循環(huán)
					else
						p=p->lchild;
				}?//?否則繼續(xù)訪問(wèn)其左子樹
				else?if（strcmp（q->datap->data）>0）{?//如果待插入的節(jié)點(diǎn)的值大于當(dāng)前節(jié)點(diǎn)的值
					if（p->rchild==NULL）?????????????//?且其右子樹為空
					{
						p->rchild=q;????????????????//??則插入
						p=NULL;
					}?//并置當(dāng)前節(jié)點(diǎn)為空，退出當(dāng)前的while循環(huán)
					else
						p=p->rchild;
				}?//?否則繼續(xù)訪問(wèn)其右子樹
				else{
					p->num++;
					p=NULL;
				}
			}//while
????????????q=（Ttree*）malloc（sizeof（Ttree））;
????????????q->data[0]=‘\0‘;
		}//else
	}//while
	return?root;
}

/*
二叉樹查找
計(jì)算某個(gè)詞在幾篇文檔中出現(xiàn)
*/
Ttree?*SearchBinTtree（Ttree?*rootxTtree?*rooty）{
	if（rootx==NULL）?return?NULL;
	
	if（strcmp（rootx->datarooty->data）==0）{
		rooty->n++;
		return?rootx;
	}
	
	if（strcmp（rootx->datarooty->data）>0）?return?S

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????712??2015-06-01?19:48??tfidfsrc\Debug\cl.command.1.tlog

?????文件???????1876??2015-06-01?19:48??tfidfsrc\Debug\CL.read.1.tlog

?????文件????????340??2015-06-01?19:48??tfidfsrc\Debug\CL.write.1.tlog

?????文件?????500224??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.exe

?????文件????????406??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.exe.embed.manifest

?????文件????????472??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.exe.embed.manifest.res

?????文件????????381??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.exe.intermediate.manifest

?????文件????1074516??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.ilk

?????文件?????????64??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.lastbuildstate

?????文件???????5090??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.log

?????文件??????20703??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.obj

?????文件????1993728??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.pdb

?????文件????????707??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.vcxprojResolveAssemblyReference.cache

?????文件??????????0??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval.write.1.tlog

?????文件????????236??2015-06-01?19:48??tfidfsrc\Debug\InformationRetrieval_manifest.rc

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link-cvtres.read.1.tlog

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link-cvtres.write.1.tlog

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link.4176-cvtres.read.1.tlog

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link.4176-cvtres.write.1.tlog

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link.4176.read.1.tlog

?????文件??????????2??2015-06-01?19:48??tfidfsrc\Debug\link.4176.write.1.tlog

?????文件???????1586??2015-06-01?19:48??tfidfsrc\Debug\link.command.1.tlog

?????文件???????3214??2015-06-01?19:48??tfidfsrc\Debug\link.read.1.tlog

?????文件????????840??2015-06-01?19:48??tfidfsrc\Debug\link.write.1.tlog

?????文件????????450??2015-06-01?19:48??tfidfsrc\Debug\mt.command.1.tlog

?????文件????????330??2015-06-01?19:48??tfidfsrc\Debug\mt.read.1.tlog

?????文件????????330??2015-06-01?19:48??tfidfsrc\Debug\mt.write.1.tlog

?????文件????????630??2015-06-01?19:48??tfidfsrc\Debug\rc.command.1.tlog

?????文件????????302??2015-06-01?19:48??tfidfsrc\Debug\rc.read.1.tlog

?????文件????????310??2015-06-01?19:48??tfidfsrc\Debug\rc.write.1.tlog

............此處省略43個(gè)文件信息