private void partition_timer_Tick(object sender, EventArgs e)
{
count3++;
if (count3 >= 35) //count >=35仍然没有加载完成则直接取下一进行抽取
{
partition_timer.Stop();
Console.Out.WriteLine("此处记得添加解析不成功是的下一页代码");
urltableid++;
selecturl();
return;
}
if (count3 > 2 && this.webBrowser1.ReadyState == WebBrowserReadyState.Complete || this.webBrowser1.ReadyState == WebBrowserReadyState.Interactive)
{
partition_timer.Stop();
Console.WriteLine(this.webBrowser1.Document.All.Count);
Console.WriteLine(this.webBrowser1.Document.Body.All.Count);
int i = 0;
List <HtmlElement> candidateslist = new List <HtmlElement>();
// HtmlElementCollection elecollection = this.webBrowser1.Document.Body.All;
if (this.webBrowser1.Document.Body.All.Count < 100)
{
selecturl(); //加载的节点数太少直接下一个；
return;
}
foreach (HtmlElement ele in this.webBrowser1.Document.All)
{
if (ele.Children.Count == 0 && ele.TagName != "SCRIPT" && ele.TagName != "NOSCRIPT" && ele.TagName != "STYLE" && ele.InnerText != null)
{
//Console.WriteLine(ele.TagName);
//Console.WriteLine(i+" "+ele.InnerText);
if (Regex.Replace(ele.InnerText, "\\s+", "").Length > 20) //长度太小的直接不要,不需要做去脚本处理的原因为本身为叶子节点
{
getTagandAttr(ele);
candidateslist.Add(ele);
i++;
}
}
}
Console.WriteLine("总共选出的节点数目" + i); //总共的后选节点数目；
selector.SetCandidate(candidateslist); //重新设置候选节点，每次调用会清除之前的候选节点
//Console.WriteLine("当前样本 ：" + sampleString);
IEnumerable <KeyValuePair <HtmlElement, double> > dicSort = selector.select(sampleString, 0, false); //根据sampleString来计算概念分。设为false表示所有评分结果均写入数据库中
foreach (KeyValuePair <HtmlElement, double> kvp in dicSort)
{
try
{//将结果存入数据库中
// Console.Write(kvp.Key + "：" + kvp.Value + "<br />");
String[] tag_attr = getTagandAttr(kvp.Key);
scores scores_table = new scores();
scores_table.urlid = urltableid;
scores_table.originalid = originalid;
scores_table.site = scoresite;
scores_table.mark = scoremark;
scores_table.info = Regex.Replace(HtmlElementprocess.getElementString(kvp.Key), "\\s+", " ");
scores_table.parent = tag_attr[0];
scores_table.current = tag_attr[1];
scores_table.firstchild = tag_attr[2];
scores_table.score = kvp.Value;
scores_table.original_current = tag_attr[3];
//htmlpage.scores.Add(scores_table);
// htmlpage.SaveChanges();
//Console.WriteLine("样本的id： "+originalid);
// Console.WriteLine("样本： " + sampleString);
}
catch (Exception error)
{
Console.WriteLine(error.Data);
}
}
selecturl();
}
}
private void weight_timer_Tick(object sender, EventArgs e)
{
count4++;
if (count4 >= 35) //count >=35仍然没有加载完成则直接取下一进行抽取
{
weight_timer.Stop();
Console.Out.WriteLine("此处记得添加解析不成功是的下一页代码");
urltableid_weight++;
next_weighturl();
return;
}
if (count4 > 2 && this.webBrowser1.ReadyState == WebBrowserReadyState.Complete || this.webBrowser1.ReadyState == WebBrowserReadyState.Interactive)
{
weight_timer.Stop();
Console.WriteLine(this.webBrowser1.Document.All.Count);
Console.WriteLine(this.webBrowser1.Document.Body.All.Count);
int i = 0;
List <HtmlElement> candidateslist = new List <HtmlElement>();
if (this.webBrowser1.Document.Body.All.Count < 100)
{
next_weighturl(); //加载的节点数太少直接下一个；
return;
}
foreach (HtmlElement ele in this.webBrowser1.Document.All)
{
if (ele.Children.Count == 0 && ele.TagName != "SCRIPT" && ele.TagName != "NOSCRIPT" && ele.TagName != "STYLE" && ele.InnerText != null)
{
if (Regex.Replace(ele.InnerText, "\\s+", "").Length > 20) //长度太小的直接不要,不需要做去脚本处理的原因为本身为叶子节点
{
candidateslist.Add(ele);
i++;
}
}
}
Console.WriteLine("总共选出的节点数目" + i); //总共的后选节点数目；
//重新设置候选节点，每次调用会清除之前的候选节点
for (int n = 0; n < 10; n++)
{
weightscorors[n].SetCandidate(candidateslist);
IEnumerable <KeyValuePair <HtmlElement, double> > dicSort = weightscorors[n].select(6); //根据sampleString来计算概念分,取排名前6的作为抽取的节点。
foreach (KeyValuePair <HtmlElement, double> kvp in dicSort)
{
try
{//将结果存入数据库中
// Console.Write(kvp.Key + "：" + kvp.Value + "<br />");
String[] tag_attr = getTagandAttr(kvp.Key);
weight_info weight_table = new weight_info();
weight_table.urlid = urltableid_weight;
weight_table.site = site_weight;
weight_table.mark = mark_weight;
weight_table.info = HtmlElementprocess.getElementString(kvp.Key);
weight_table.parent = tag_attr[0];
weight_table.current = tag_attr[1];
weight_table.child = tag_attr[2];
weight_table.score = kvp.Value;
weight_table.samplenumber = (n + 1) * 10;
htmlpage.weight_info.Add(weight_table);
htmlpage.SaveChanges();
// Console.WriteLine("样本的id： "+originalid);
// Console.WriteLine("样本： " + sampleString);
}
catch (UriFormatException)
{
}
}
}
next_weighturl();
}
}
public IEnumerable <KeyValuePair <HtmlElement, double> > select(String sampletext, int num, bool limit) //sampletext为概念的来源，对candidate打分,num指返回排名前num的节点；
{
DateTime beforDT = System.DateTime.Now;
Console.Write("开始计算评分");
int test = 0;
Dictionary <String, int> sampleconcepts = Conceptprocess.getConcept(sampletext);
List <HtmlElement> keylist = new List <HtmlElement>();
keylist.AddRange(candidates.Keys);
foreach (HtmlElement key in keylist)
{
test++;
Console.WriteLine("正在计算第" + test + "个");
double score = 0; //当前节点评分
double combinescore = 0;
double parent_score = -1; //父节点评分；
// double parent_combinescore = -1;
HtmlElement current = key; //当前节点
HtmlElement parent = current.Parent; //父节点
String temp = Regex.Replace(key.InnerText.Trim(), "\\s+", " "); //当前节点文本
// temp = Regex.Replace(temp, @"\d* out of stars \d*", "") //除去干扰字符
double lenscore = candscortor.lenscore(temp, candscortor.getavglen());
combinescore = candscortor.computeScore(temp); //节点的组合分
// Console.Write("节点： "+ temp);
// Console.WriteLine("长度得分"+lenscore);
if (lenscore < 0.4 || combinescore < 1) //过滤掉一些明显长度分过低的节点，组合分过低的直接过滤
{
candidates.Remove(key);
}
else
{ //计算概念分一定要样本在前，待评节点在后，因为需要更具样本生成待评价节点概念向量
Dictionary <String, int> currentconcepts = Conceptprocess.getConcept(temp);
// Console.WriteLine("String: " + temp);
// Console.WriteLine("概念词个数: "+ currentconcepts.Count);
// combinescore = candscortor.computeScore(temp);
score = combinescore + Conceptprocess.getConceptscore(sampleconcepts, currentconcepts); //当前节点评分
// Console.WriteLine("组合分1: " + combinescore);
// Console.WriteLine("概念分1: " + Conceptprocess.getConceptscore(sampleconcepts, currentconcepts));
// Console.WriteLine("111111得分: " + score);
String parent_temp = null; //如果存在父节点则找出父节点文本；
if (parent != null)
{
//父节点字符串需要进行处理
parent_temp = Regex.Replace(HtmlElementprocess.getElementString(parent), "\\s+", " ");
}
if (parent_temp != null && parent_temp.Length > 0) //父节点评分
{
if (candscortor.lenscore(parent_temp, candscortor.getavglen()) > 0.4)
{
if (parent_temp.Equals(temp))
{
parent_score = score;
}
else
{
// Console.WriteLine("Stringfu: " + parent_temp);
Dictionary <String, int> parentconcepts = Conceptprocess.getConcept(parent_temp);
// Console.WriteLine("概念词个数: " + parentconcepts.Count);
parent_score = candscortor.computeScore(parent_temp) + Conceptprocess.getConceptscore(sampleconcepts, parentconcepts);
// Console.WriteLine("组合分2: " + candscortor.computeScore(temp));
// Console.WriteLine("概念分2: " + Conceptprocess.getConceptscore(sampleconcepts, parentconcepts));
// Console.WriteLine("2222222得分: " + parent_score);
}
}
else
{
parent_score = -1; //如果父节点的长度变得太大则也不要
}
}
// Console.WriteLine("父节点得分: " + parent_score + "子节点得分: " + score);
while (parent_score >= score) //如果父节点的评分高于子节点则往上嵌套查找；
{
// Console.WriteLine("父节点得分: " + parent_score+ "子节点得分: "+ score);
current = parent; //当前节点为评分高的节点；
temp = parent_temp;
parent = current.Parent;
score = parent_score;
//跟新parent_score；初始时 parent_score = 0;parent_temp = null;
parent_score = -1;
parent_temp = null;
if (parent != null)
{
parent_temp = Regex.Replace(HtmlElementprocess.getElementString(parent), "\\s+", " ");
}
if (parent_temp != null && parent_temp.Length > 0) //父节点评分
{
if (candscortor.lenscore(parent_temp, candscortor.getavglen()) > 0.4)
{
if (parent_temp.Equals(temp))
{
parent_score = score;
}
else
{
Dictionary <String, int> parentconcepts = Conceptprocess.getConcept(parent_temp);
parent_score = candscortor.computeScore(parent_temp) + Conceptprocess.getConceptscore(sampleconcepts, parentconcepts);
}
}
else
{
parent_score = -1; //如果父节点的长度变得太大则也不要
}
}
} //跳出while循环时为说明current记录的节点大于父节点的打分；
Console.WriteLine("总分" + score);
if (candidates.ContainsKey(current))
{
candidates[current] = score;
}
else
{
candidates.Add(current, score);
candidates.Remove(key);
}
}
}
if (limit == true)
{
var dicSort = (from objDic in candidates orderby objDic.Value descending select objDic).Take(num);
DateTime afterDT = System.DateTime.Now;
TimeSpan ts = afterDT.Subtract(beforDT);
// Console.WriteLine("DateTime总共花费{0}ms.", ts.TotalMilliseconds);
return(dicSort);
}
else
{
var dicSort = (from objDic in candidates orderby objDic.Value descending select objDic);
DateTime afterDT = System.DateTime.Now;
TimeSpan ts = afterDT.Subtract(beforDT);
// Console.WriteLine("DateTime总共花费{0}ms.", ts.TotalMilliseconds);
return(dicSort);
}
}