Profil de ZhihaiShanghai AOE Network Tec...PhotosBlogListesPlus  |  Outils Aide |
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10/01/2008 Reapter试用大全[嵌套Reapter]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++前台控件++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<table cellpadding="0" cellspacing="0">
<asp:Repeater ID="rpt1" runat="server" OnItemDataBound="rpt1_ItemDataBound">
<HeaderTemplate> <tr> <td>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td>
<HeaderTemplate>
<ItemTemplate>
<asp:Repeater ID="rpt2" runat="server" OnItemCommand="rpt2_OnClick" OnItemDataBound="rpt2_ItemDataBound">
<ItemTemplate>
<td> <asp:LinkButton ID="linkButton" runat="server" CommandName="YouAreBest"></asp:LinkButton> <td> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++后台部分++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//1：对第一层reapter操作
protected void rpt1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater rpt2 = e.Item.FindControl("rpt2") as Repeater;
if (rpt2 != null)
{
//2：对第二层reapter中的LinkButton设置客户端事件
protected void rpt2_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
LinkButton linkButton = e.Item.FindControl("linkButton") as LinkButton;
if (linkButton != null)
{
linkButton.Attributes.Add("onclick", "alert('click me');");
//3：对第二层reapter中的LinkButton操作
protected void rpt2_OnClick(object sender, RepeaterCommandEventArgs e)
{
switch (e.CommandName)
{
case "YouAreBest":
{
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++[结束]+++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 14/09/2006 自然语言切词系统中歧义字段切分技术歧义主要有两种： 一：交集型歧义字段：在字段AJB中，如果AJ属于W且JB属于W，那么称AJB称为交集型歧义字段。
链长：交集型歧义字段中含有交集字段的个数称为链长。
二：组合型歧义字段：如果满足（1）A，B，AB同时为词；（2）中文文本中至少存在一个前后语境C，在C的约束下，A与B在语法与语义上都成立，则AB称为组合型歧义字段。
注：对50833个汉字在典型综合型语料库进行了统计分析，歧义字段的总出现次数与语料库中所含汉字的总数比为0.911%，其中交集型字段占84.10%；伪歧义字段占总歧义字段约94%。
解决办法：
一：最大匹配：从左至右或者从右至左，每次取最长词，得到切分结果。包含向前最大，向后最大，双向最大匹配法。
二：最短路径法：采用动态规划方法找出词图中起点到终点的最短路径。此方法比上面方法好。
三：基于记忆的交叉歧义排除法：保存一种伪歧义切分字段表来匹配歧义字段。
[沪2006-09-14]
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