//查询百度百科词条时需跳转一次才能到达词条页面
public static void GetBaidu(BaikeEntry baidu)
{
string url = "http://baike.baidu.com/searchword/?word=" + HttpUtility.UrlEncode(baidu.entryName, GB18030) + "&pic=1";
string content = GetUrlHTML(url, GB18030);
if (content.Length != 0 && !content.Contains("210.77.16.29"))
{
//提取词条的真实url
string pattern = @"(?is)view.*?htm";
Match m = Regex.Match(content, pattern);
if (m.Success)
{
url = "http://baike.baidu.com/" + m.ToString();
baidu.url = url;
baidu.sourceHTML = GetUrlHTML(url, GB18030); //百度百科网页编码为GB2312
if (baidu.sourceHTML.Length != 0)
baidu.errExist= false;
else
baidu.errMsg = "百度百科词条页面读取失败!";
}
else
baidu.errMsg = "百度百科中不存在该词条!";
}
else
baidu.errMsg = "不能访问百度百科，请检查网络!";
}
private void buttonCompare_Click(object sender, EventArgs e)
{
string termName = Regex.Replace(textBoxTermName.Text, @"(?is)\s*", "");
if (termName.Length == 0)
MessageBox.Show("请输入词条名称", "提示");
else
{
AllTextReset(); //清除上一次查询的信息
BaikeEntry baidu = new BaikeEntry("baidu", termName);
BaikeEntry hudong = new BaikeEntry("hudong", termName);
GetBaiduDetails(baidu);
GetHudongDetails(hudong);
if (!baidu.errExist && !hudong.errExist)
ComputeSimilitude(baidu, hudong);
if (checkBoxPreview.Checked)
{
webBrowserBaidu.DocumentText = baidu.preview;
webBrowserHudong.DocumentText = hudong.preview;
}
/********************* 测试 *****************************/
//richTextBoxBaiduText.Text = baidu.preview;
//richTextBoxHudongText.Text = hudong.preview;
}
}
public static void GetHudong(BaikeEntry hudong)
{
string url = "http://www.hudong.com/wiki/" + HttpUtility.UrlEncode(hudong.entryName, UTF8);
hudong.url = url;
hudong.sourceHTML = GetUrlHTML(url, UTF8); //互动百科网页编码为UTF8
if (hudong.sourceHTML.Length != 0 && !hudong.sourceHTML.Contains("210.77.16.29"))
{
bool entryNotExist = hudong.sourceHTML.Contains("您要访问的页面不存在") ||
hudong.sourceHTML.Contains("尚未收录词条") ||
hudong.sourceHTML.Contains("词条名字为空");
if (!entryNotExist)
{
hudong.errExist = false;
}
else
{
hudong.errMsg = "互动百科中不存在该词条!";
}
}
else
{
hudong.errMsg = "不能访问互动百科，请检查网络!";
}
}
//查询百度百科词条时需跳转一次才能到达词条页面
public static void GetBaidu(BaikeEntry baidu)
{
string url = "http://baike.baidu.com/searchword/?word=" + HttpUtility.UrlEncode(baidu.entryName, GB18030) + "&pic=1";
string content = GetUrlHTML(url, GB18030);
if (content.Length != 0 && !content.Contains("210.77.16.29"))
{
//提取词条的真实url
string pattern = @"(?is)view.*?htm";
Match m = Regex.Match(content, pattern);
if (m.Success)
{
url = "http://baike.baidu.com/" + m.ToString();
baidu.url = url;
baidu.sourceHTML = GetUrlHTML(url, GB18030); //百度百科网页编码为GB2312
if (baidu.sourceHTML.Length != 0)
{
baidu.errExist = false;
}
else
{
baidu.errMsg = "百度百科词条页面读取失败!";
}
}
else
{
baidu.errMsg = "百度百科中不存在该词条!";
}
}
else
{
baidu.errMsg = "不能访问百度百科，请检查网络!";
}
}
private void GetBaiduDetails(BaikeEntry baidu)
{
/************************************************************************/
/* 1.搜索百科词条
/* errExist：此处用来判断词条是否存在,SourceHTML会修改其值
/************************************************************************/
SourceHTML.GetBaidu(baidu);
if (baidu.errExist)
{
textBoxBaidu.Text = baidu.errMsg;
return;
}
textBoxBaidu.Text = baidu.url;
baidu.errExist = true;
/************************************************************************/
/* 2.提取网页正文
* errExist：此处用来判断是否正确提取到正文
/************************************************************************/
TextExtract baiduText = new TextExtract(baidu);
if (baidu.errExist)
{
textBoxBaidu.Text = baidu.url + " (" + baidu.errMsg + ")";
return;
}
richTextBoxBaiduText.Text = baidu.text;
labelBaiduTextNum.Text = baidu.text.Length.ToString();
/************************************************************************/
/* 3.分词 */
/************************************************************************/
TermFrequence baiduTermFreq = new TermFrequence(baidu);
richTextBoxBaiduTermFreq.Text = baidu.allWordFreq;
labelBaiduWordNum.Text = baidu.wordDic.Count.ToString();
}
private void buttonCompare_Click(object sender, EventArgs e)
{
string termName = Regex.Replace(textBoxTermName.Text, @"(?is)\s*", "");
if (termName.Length == 0)
{
MessageBox.Show("请输入词条名称", "提示");
}
else
{
AllTextReset(); //清除上一次查询的信息
BaikeEntry baidu = new BaikeEntry("baidu", termName);
BaikeEntry hudong = new BaikeEntry("hudong", termName);
GetBaiduDetails(baidu);
GetHudongDetails(hudong);
if (!baidu.errExist && !hudong.errExist)
{
ComputeSimilitude(baidu, hudong);
}
if (checkBoxPreview.Checked)
{
webBrowserBaidu.DocumentText = baidu.preview;
webBrowserHudong.DocumentText = hudong.preview;
}
/********************* 测试 *****************************/
//richTextBoxBaiduText.Text = baidu.preview;
//richTextBoxHudongText.Text = hudong.preview;
}
}
private void ComputeSimilitude(BaikeEntry baidu, BaikeEntry hudong)
{
SimilitudeVSM simCos = new SimilitudeVSM(baidu, hudong);
labelSimilitude.Text = simCos.similitude.ToString("F5");
labelSameWordNum.Text = baidu.sameWordNum.ToString();
}
public TermFrequence(BaikeEntry newBaikeEntry)
{
baikeEntry = newBaikeEntry;
GetTermDic();
RemoveStopWords();
GetTermList(); //只保留词频大于1且词项字数大于1的词项
UpdateTermDic();
GetTermShow();
}
// 构造函数
public TextExtract(BaikeEntry newBaikeEntry)
{
baikeEntry = newBaikeEntry;
textStart = 0;
textEnd = 0;
textBody = "";
blockLen = new List <int>();
extract();
}
private string[] stopWords; //停用词表
#endregion Fields
#region Constructors
public TermFrequence(BaikeEntry newBaikeEntry)
{
baikeEntry = newBaikeEntry;
GetTermDic();
RemoveStopWords();
GetTermList(); //只保留词频大于1且词项字数大于1的词项
UpdateTermDic();
GetTermShow();
}
private int textStart; // 网页正文开始行数
#endregion Fields
#region Constructors
// 构造函数
public TextExtract(BaikeEntry newBaikeEntry)
{
baikeEntry = newBaikeEntry;
textStart = 0;
textEnd = 0;
textBody = "";
blockLen = new List<int>();
extract();
}
public SimilitudeVSM(BaikeEntry A, BaikeEntry B)
{
entryA = A;
entryB = B;
innerProduct = 0;
normA = 0.0;
normB = 0.0;
similitude = 0.0;
ComputeCosine();
}
public SimilitudeVSM(BaikeEntry A, BaikeEntry B)
{
entryA = A;
entryB = B;
innerProduct = 0;
normA = 0.0;
normB = 0.0;
similitude = 0.0;
ComputeCosine();
}
public static void GetHudong(BaikeEntry hudong)
{
string url = "http://www.hudong.com/wiki/" + HttpUtility.UrlEncode(hudong.entryName, UTF8);
hudong.url = url;
hudong.sourceHTML = GetUrlHTML(url, UTF8); //互动百科网页编码为UTF8
if (hudong.sourceHTML.Length != 0 && !hudong.sourceHTML.Contains("210.77.16.29"))
{
bool entryNotExist = hudong.sourceHTML.Contains("您要访问的页面不存在")
|| hudong.sourceHTML.Contains("尚未收录词条")
|| hudong.sourceHTML.Contains("词条名字为空");
if (!entryNotExist)
hudong.errExist = false;
else
hudong.errMsg = "互动百科中不存在该词条!";
}
else
hudong.errMsg = "不能访问互动百科，请检查网络!";
}
private void GetBaiduDetails(BaikeEntry baidu)
{
/************************************************************************/
/* 1.搜索百科词条
* /* errExist：此处用来判断词条是否存在,SourceHTML会修改其值
* /************************************************************************/
SourceHTML.GetBaidu(baidu);
if (baidu.errExist)
{
textBoxBaidu.Text = baidu.errMsg;
return;
}
textBoxBaidu.Text = baidu.url;
baidu.errExist = true;
/************************************************************************/
/* 2.提取网页正文
* errExist：此处用来判断是否正确提取到正文
* /************************************************************************/
TextExtract baiduText = new TextExtract(baidu);
if (baidu.errExist)
{
textBoxBaidu.Text = baidu.url + " (" + baidu.errMsg + ")";
return;
}
richTextBoxBaiduText.Text = baidu.text;
labelBaiduTextNum.Text = baidu.text.Length.ToString();
/************************************************************************/
/* 3.分词 */
/************************************************************************/
TermFrequence baiduTermFreq = new TermFrequence(baidu);
richTextBoxBaiduTermFreq.Text = baidu.allWordFreq;
labelBaiduWordNum.Text = baidu.wordDic.Count.ToString();
}
private void GetHudongDetails(BaikeEntry hudong)
{
/************************************************************************/
/* 1.搜索百科词条
* errExist：此处用来判断词条是否存在,SourceHTML会修改其值
* /************************************************************************/
SourceHTML.GetHudong(hudong);
if (hudong.errExist)
{
textBoxHudong.Text = hudong.errMsg;
return;
}
textBoxHudong.Text = hudong.url;
hudong.errExist = true;
/************************************************************************/
/* 2.提取网页正文
* errExist：此处用来判断是否正确提取到正文
* /************************************************************************/
TextExtract HudongText = new TextExtract(hudong);
if (hudong.errExist)
{
textBoxHudong.Text = hudong.url + " (" + hudong.errMsg + ")";
return;
}
richTextBoxHudongText.Text = hudong.text;
labelHudongTextNum.Text = hudong.text.Length.ToString();
/************************************************************************/
/* 3.分词 */
/************************************************************************/
TermFrequence HudongTermFreq = new TermFrequence(hudong);
richTextBoxHudongTermFreq.Text = hudong.allWordFreq;
labelHudongWordNum.Text = hudong.wordDic.Count.ToString();
}
private void GetHudongDetails(BaikeEntry hudong)
{
/************************************************************************/
/* 1.搜索百科词条
* errExist：此处用来判断词条是否存在,SourceHTML会修改其值
/************************************************************************/
SourceHTML.GetHudong(hudong);
if (hudong.errExist)
{
textBoxHudong.Text = hudong.errMsg;
return;
}
textBoxHudong.Text = hudong.url;
hudong.errExist = true;
/************************************************************************/
/* 2.提取网页正文
* errExist：此处用来判断是否正确提取到正文
/************************************************************************/
TextExtract HudongText = new TextExtract(hudong);
if (hudong.errExist)
{
textBoxHudong.Text = hudong.url + " (" + hudong.errMsg + ")";
return;
}
richTextBoxHudongText.Text = hudong.text;
labelHudongTextNum.Text = hudong.text.Length.ToString();
/************************************************************************/
/* 3.分词 */
/************************************************************************/
TermFrequence HudongTermFreq = new TermFrequence(hudong);
richTextBoxHudongTermFreq.Text = hudong.allWordFreq;
labelHudongWordNum.Text = hudong.wordDic.Count.ToString();
}
private void ComputeSimilitude(BaikeEntry baidu, BaikeEntry hudong)
{
SimilitudeVSM simCos = new SimilitudeVSM(baidu, hudong);
labelSimilitude.Text = simCos.similitude.ToString("F5");
labelSameWordNum.Text = baidu.sameWordNum.ToString();
}