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代碼片段和文件信息


import?java.io.*;
import?java.util.*;
import?java.util.Collections;
import?java.util.Comparator;
import?java.lang.*;

?class?defWord{
int?wordIndex;
int?wordFreq;
???defWord(int?A?int?B?)
{
wordIndex?=?A;
wordFreq??=?B;
}

};
class?defClass{
double?textDis;
int?emo;
defClass(double?A?int?B?)
{
textDis?=?A;
emo?=?B;
}
defClass()
{
textDis?=?0;
emo?=?0;
}
};

?class?MyCompare?implements?Comparator?//實現Comparator,定義自己的比較方法
{
@Override
public?int?compare(object?o1?object?o2)?{
defClass?e1=(defClass)o1;
defClass?e2=(defClass)o2;
if?(e1.textDis>e2.textDis)??return?1;?//這樣比較是降序如果把-1改成1就是升序
else?if?(e1.textDis else?return?0;
}
}

public?class?KNNClassification{

static?Vector?data?=?new?Vector(3);??//?二位向量,用于儲存記錄每個文本向量,
static?Vector?allTestResult?=?new?Vector(3);
static?Vector?wordList?=?new?Vector(3);?//?用于儲存所有出現的不重復單詞,順序為文本出現的順序
static?Vector?wordInTextRecord?=?new?Vector(3);??//?用于記錄每個出現該單詞的文件的總數
static?Vector?TrainTextPosb?=?new?Vector(3);?//?用于記錄回歸時訓練文本的標簽概率
public?void?KNN(){}

????public?static?void?classification?(BufferedReader?readKNN)throws?IOException
{
String?line;
line=?readKNN.readLine();
while(?(line=?readKNN.readLine())!=null)
{

String[]?testWords?=?line.split(“?“);
int?wordListSize?=?wordList.size();
int[]?testText?=?new?int[wordListSize];??//?儲存每段所需文本的第三段相關信息
for?(int?i=0;i int?num=0;
for?(String?testWord:testWords)??//?遍歷每個文本的單詞
{
num++;
if?(num<4)??continue;
int?wordIndex?=?wordList.indexOf(testWord);??//?在總單詞向量表中尋找單詞
if?(?wordIndex!=-1?)???//?如果單詞已存在于單詞向量中
{
if?(testText[wordIndex]==0)??testText[wordIndex]=1;
}
}
int?e=testWords[1].charAt(0)-‘0‘;
Vector?textResult?=?new?Vector(data.size());
//int?aaa=0;
for?(Vector?trainText:data)
{

double?dis?=?0;
int?idx=0;
defWord?trainWord?=?(defWord)trainText.get(idx);
for?(int?i=0;i {
if?(i==trainWord.wordIndex)?
{
idx+=1;?
if?(idx if?(testText[i]==0)?dis+=1;
}
else?if?(i!=trainWord.wordIndex?&&?testText[i]==1)?dis+=1;
}
trainWord?=?(defWord)trainText.lastElement();
//System.out.println(train.wordIndex);
defClass?res?=?new?defClass(dis?trainWord.wordIndex);
textResult.addElement(res);
}
Comparator?cmp?=?new?MyCompare();
Collections.sort(textResultcmp);
defClass?res?=?new?defClass(-1e);
textResult.addElement(res);
allTestResult.addElement(textResult);
}
//return?allTextResult;
}

public?static?double?getClassfied(int?kOutputStreamWriter?output1NN)?throws?IOException
{

int?correctNum?=?0;
int?num=0;
for?(Vector?test:allTestResult)
{
num++;
int[]?emot

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????33251??2016-09-17?01:44??Dataset_test.csv
?????文件???????19160??2016-09-17?01:44??Dataset_train.csv
?????文件???????42503??2016-09-17?01:44??Dataset_validation.csv
?????文件???????63727??2016-09-17?01:44??Dataset_words.csv
?????文件????????7642??2016-09-27?11:34??KNNClassification.java
?????文件???????12135??2016-10-05?21:45??KNNRegression.java
?????文件???????38918??2016-10-05?21:34??test.xlsx
?????文件???????48784??2016-09-17?01:44??test1.txt
?????文件???????11993??2016-09-17?01:44??train1.txt
?????文件???????56772??2016-09-19?00:24??validation.xlsx

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