From afeb3921c9aecf82bc7a614d0dbb98ac0e50a7ed Mon Sep 17 00:00:00 2001
From: shataowei <taowei.sha@ymm56.com>
Date: Sat, 21 Dec 2019 19:03:18 +0800
Subject: [PATCH] fix bug

---
 .idea/workspace.xml                                      | 9 ++++-----
 .../GBDT.md"                                             | 2 +-
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 847d288..4de5ab1 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -3,7 +3,6 @@
   <component name="ChangeListManager">
     <list default="true" id="be5bf74e-ad1c-4197-8a1f-ac93566d8aa7" name="Default" comment="init">
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/机器学习/集成学习/GBDT.md" afterPath="$PROJECT_DIR$/机器学习/集成学习/GBDT.md" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/自然语言处理/GloVe.md" afterPath="$PROJECT_DIR$/自然语言处理/GloVe.md" />
     </list>
     <ignored path="Reflection_Summary.iws" />
     <ignored path=".idea/workspace.xml" />
@@ -52,8 +51,8 @@
         <entry file="file://$PROJECT_DIR$/机器学习/集成学习/GBDT.md">
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="-800">
-                <caret line="21" column="0" selection-start-line="21" selection-start-column="0" selection-end-line="21" selection-end-column="0" />
+              <first_editor relative-caret-position="204">
+                <caret line="42" column="15" selection-start-line="42" selection-start-column="15" selection-end-line="42" selection-end-column="15" />
                 <folding />
               </first_editor>
               <second_editor />
@@ -1420,8 +1419,8 @@
     <entry file="file://$PROJECT_DIR$/机器学习/集成学习/GBDT.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="-800">
-            <caret line="21" column="0" selection-start-line="21" selection-start-column="0" selection-end-line="21" selection-end-column="0" />
+          <first_editor relative-caret-position="204">
+            <caret line="42" column="15" selection-start-line="42" selection-start-column="15" selection-end-line="42" selection-end-column="15" />
             <folding />
           </first_editor>
           <second_editor />
diff --git "a/\346\234\272\345\231\250\345\255\246\344\271\240/\351\233\206\346\210\220\345\255\246\344\271\240/GBDT.md" "b/\346\234\272\345\231\250\345\255\246\344\271\240/\351\233\206\346\210\220\345\255\246\344\271\240/GBDT.md"
index 83be8b5..2d5f8b1 100644
--- "a/\346\234\272\345\231\250\345\255\246\344\271\240/\351\233\206\346\210\220\345\255\246\344\271\240/GBDT.md"
+++ "b/\346\234\272\345\231\250\345\255\246\344\271\240/\351\233\206\346\210\220\345\255\246\344\271\240/GBDT.md"
@@ -40,7 +40,7 @@ Cart tree，但是都是回归树
     - 负梯度：y·𝑒𝑥𝑝(−𝑦𝑓(𝑥))
 除了负梯度计算和叶子节点的最佳负梯度拟合的线性搜索，多元GBDT分类和二元GBDT分类以及GBDT回归算法过程相同
 
-# 什么是gbdt中的残差的负梯度？
+# 什么是gbdt中的损失函数的负梯度？
 ![](https://tva1.sinaimg.cn/large/006y8mN6gy1g94afa5h1lj3060017mx0.jpg)
 
 当loss函数为均方误差![](https://tva1.sinaimg.cn/large/006y8mN6gy1g94ajgymkuj303w011jr6.jpg)，gbdt中的残差的负梯度的结果y-H(x)正好与boostingtree的拟合残差一致