diff --git a/Code/Day 13_SVM.ipynb b/Code/Day 13_SVM.ipynb
index 2260d56..8508e27 100644
--- a/Code/Day 13_SVM.ipynb	
+++ b/Code/Day 13_SVM.ipynb	
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# 机器学习100天——第十三天：支持向量机 (SVM)"
+    "# 机器学习100天——第13天：支持向量机 (SVM)"
    ]
   },
   {
@@ -57,7 +57,9 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "metadata": {},
+   "metadata": {
+    "collapsed": true
+   },
    "outputs": [],
    "source": [
     "from sklearn.cross_validation import train_test_split\n",
@@ -74,7 +76,9 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "metadata": {},
+   "metadata": {
+    "collapsed": true
+   },
    "outputs": [],
    "source": [
     "from sklearn.preprocessing import StandardScaler\n",
diff --git a/Code/Day 1_Data Prepocessing.ipynb b/Code/Day 1_Data Preprocessing.ipynb
similarity index 99%
rename from Code/Day 1_Data Prepocessing.ipynb
rename to Code/Day 1_Data Preprocessing.ipynb
index 61a87b7..b4d80b8 100644
--- a/Code/Day 1_Data Prepocessing.ipynb	
+++ b/Code/Day 1_Data Preprocessing.ipynb	
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# 机器学习100天——第一天：数据预处理"
+    "# 机器学习100天——第1天：数据预处理（Data Preprocessing）"
    ]
   },
   {