diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 84b68f295..50e85ba27 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -647,7 +647,7 @@ public = public
 dir = directory
 back = back
 copy_url=copy download url
-directory=check directory of the datasets
+directory=preview of the datasets
 create_label_task=create label task
 visibility = visibility
 visibility_description = Only the owner or the organization members if they have rights, will be able to see it.
diff --git a/options/locale/locale_zh-CN.ini b/options/locale/locale_zh-CN.ini
index fbee11b79..89a6282e5 100755
--- a/options/locale/locale_zh-CN.ini
+++ b/options/locale/locale_zh-CN.ini
@@ -649,7 +649,7 @@ dir=目录
 back=返回
 copy_url=复制下载链接
 copy_md5=复制文件MD5
-directory=查看数据集目录结构
+directory=数据集预览
 create_label_task=创建标注任务
 visibility=可见性
 visibility_description=只有组织所有人或拥有权利的组织成员才能看到。
diff --git a/public/self/js/Director/detection.js b/public/self/js/Director/detection.js
index d97473e25..5f40e73c3 100644
--- a/public/self/js/Director/detection.js
+++ b/public/self/js/Director/detection.js
@@ -2641,19 +2641,19 @@ function setPage(pageData,pageSize){
   
 }
 
- 
-    canvas = document.getElementById("myCanvas");
-    context = canvas.getContext("2d");
-    var maxWidth  = document.getElementById("showPic").offsetWidth;
-    var maxHeight = document.getElementById("showPic").offsetHeight-100;
-    canvas.width = maxWidth;//document.getElementById("tool0").offsetWidth;
-    canvas.height = maxHeight;//document.getElementById("tool0").offsetWidth/1280*720;
+  init_index();
+    // canvas = document.getElementById("myCanvas");
+    // context = canvas.getContext("2d");
+    // var maxWidth  = document.getElementById("showPic").offsetWidth;
+    // var maxHeight = document.getElementById("showPic").offsetHeight-100;
+    // canvas.width = maxWidth;//document.getElementById("tool0").offsetWidth;
+    // canvas.height = maxHeight;//document.getElementById("tool0").offsetWidth/1280*720;
 
     // show_region = document.getElementById("show_region");
     // show_region.width =document.getElementById("tool0").offsetWidth;
     // show_region.height = document.getElementById("tool0").offsetWidth/1280*720;
 
-  window.onload = function() {
+  function init_index() {
 
     canvas    = document.getElementById("myCanvas");
     context   = canvas.getContext("2d");
diff --git a/public/self/labelTaskPage.js b/public/self/labelTaskPage.js
index 713b22143..e36ab1024 100644
--- a/public/self/labelTaskPage.js
+++ b/public/self/labelTaskPage.js
@@ -674,7 +674,7 @@ function personLabel(taskid, task_type){
   sessionStorage.setItem('return_url',url_name);
 	console.log("task_type=" + task_type);
 	if(task_type == 2 || task_type == 1 || task_type == 4){
-		window.open("/self/labeling.html","标注");
+		window.open("/self/labeling.html?","标注"+new Date().getMilliseconds());
 		//window.location.href="/self/labeling.html";
 	}else if(task_type == 3){
 		window.location.href="labelingDcm.html";
diff --git a/templates/repo/datasets/dataset_list.tmpl b/templates/repo/datasets/dataset_list.tmpl
index 582c73501..3c7f0b3ce 100755
--- a/templates/repo/datasets/dataset_list.tmpl
+++ b/templates/repo/datasets/dataset_list.tmpl
@@ -25,11 +25,11 @@
       <div class="wide column one" style="{{if ne .DecompressState 1}}visibility: hidden;{{end}}">
         <a class="ui text center" href="datasets/dirs/{{.UUID}}?type={{$.Type}}" data-tooltip='{{$.i18n.Tr "dataset.directory"}}'>{{svg "octicon-file-directory" 16}}</a>
       </div>
-      
-      <div class="wide column one" style="{{if ne .DecompressState 1}}visibility: hidden;{{end}}">
-        <a class="ui text center" href="datasets/label/{{.UUID}}?type={{$.Type}}" data-tooltip='{{$.i18n.Tr "dataset.create_label_task"}}'><i class="fa fa-pencil-square-o" aria-hidden="true"></i></a>
-      </div>
-
+      {{if $.IsSigned}}
+        <div class="wide column one" style="{{if ne .DecompressState 1}}visibility: hidden;{{end}}">
+          <a class="ui text center" href="datasets/label/{{.UUID}}?type={{$.Type}}" data-tooltip='{{$.i18n.Tr "dataset.create_label_task"}}'><i class="fa fa-pencil-square-o" aria-hidden="true"></i></a>
+        </div>
+      {{end}}
       {{if $.Permission.CanWrite $.UnitTypeDatasets}}
         {{if  $.Repository.IsPrivate}}
           <div class="two wide column">