diff --git a/doc/pub/week45/html/._week45-bs001.html b/doc/pub/week45/html/._week45-bs001.html
index 517fcab98..c20f22063 100644
--- a/doc/pub/week45/html/._week45-bs001.html
+++ b/doc/pub/week45/html/._week45-bs001.html
@@ -173,6 +173,9 @@ MathJax.Hub.Config({
 
 <ul>
 <li> Thursday: Boosting methods, froma AdaBoost to Gradient boosting</li>
+<ul>
+  <li> <a href="https://youtu.be/mK48PfCxgYk" target="_self">Video of lecture</a></li>
+</ul>
 <li> Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines</li>
 </ul>
 <div class="panel panel-default">
diff --git a/doc/pub/week45/html/week45-reveal.html b/doc/pub/week45/html/week45-reveal.html
index d354e426a..282178247 100644
--- a/doc/pub/week45/html/week45-reveal.html
+++ b/doc/pub/week45/html/week45-reveal.html
@@ -199,6 +199,11 @@ MathJax.Hub.Config({
 
 <ul>
 <p><li> Thursday: Boosting methods, froma AdaBoost to Gradient boosting</li>
+<ul>
+
+<p><li> <a href="https://youtu.be/mK48PfCxgYk" target="_blank">Video of lecture</a></li>
+</ul>
+<p>
 <p><li> Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines</li>
 </ul>
 <p>
diff --git a/doc/pub/week45/html/week45-solarized.html b/doc/pub/week45/html/week45-solarized.html
index 586a364a6..014adef21 100644
--- a/doc/pub/week45/html/week45-solarized.html
+++ b/doc/pub/week45/html/week45-solarized.html
@@ -176,6 +176,9 @@ MathJax.Hub.Config({
 
 <ul>
 <li> Thursday: Boosting methods, froma AdaBoost to Gradient boosting</li>
+<ul>
+  <li> <a href="https://youtu.be/mK48PfCxgYk" target="_blank">Video of lecture</a></li>
+</ul>
 <li> Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines</li>
 </ul>
 <div class="alert alert-block alert-block alert-text-normal">
diff --git a/doc/pub/week45/html/week45.html b/doc/pub/week45/html/week45.html
index cfb8545b7..319ea44fe 100644
--- a/doc/pub/week45/html/week45.html
+++ b/doc/pub/week45/html/week45.html
@@ -253,6 +253,9 @@ MathJax.Hub.Config({
 
 <ul>
 <li> Thursday: Boosting methods, froma AdaBoost to Gradient boosting</li>
+<ul>
+  <li> <a href="https://youtu.be/mK48PfCxgYk" target="_blank">Video of lecture</a></li>
+</ul>
 <li> Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines</li>
 </ul>
 <div class="alert alert-block alert-block alert-text-normal">
diff --git a/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierconfusion.png b/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierconfusion.png
index 95cdc90e8..c015ec3f3 100644
Binary files a/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierconfusion.png and b/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierconfusion.png differ
diff --git a/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierroc.png b/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierroc.png
index 2d9a000ec..4f79cd17d 100644
Binary files a/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierroc.png and b/doc/pub/week45/ipynb/Results/FigureFiles/gdclassiffierroc.png differ
diff --git a/doc/pub/week45/ipynb/Results/FigureFiles/gdregression.png b/doc/pub/week45/ipynb/Results/FigureFiles/gdregression.png
index c70b1c457..b6c53b769 100644
Binary files a/doc/pub/week45/ipynb/Results/FigureFiles/gdregression.png and b/doc/pub/week45/ipynb/Results/FigureFiles/gdregression.png differ
diff --git a/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz b/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz
index c4147c2ea..90bc939ba 100644
Binary files a/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz and b/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz differ
diff --git a/doc/pub/week45/ipynb/week45.ipynb b/doc/pub/week45/ipynb/week45.ipynb
index 892d48db3..dda082139 100644
--- a/doc/pub/week45/ipynb/week45.ipynb
+++ b/doc/pub/week45/ipynb/week45.ipynb
@@ -2,7 +2,7 @@
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@@ -14,7 +14,7 @@
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+   "id": "c369db1a",
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@@ -38,6 +38,8 @@
     "\n",
     "* Thursday: Boosting methods, froma AdaBoost to Gradient boosting\n",
     "\n",
+    "  * [Video of lecture](https://youtu.be/mK48PfCxgYk)\n",
+    "\n",
     "* Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines\n",
     "\n",
     "**Videos.**\n",
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@@ -1195,7 +1197,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "541e23cb",
+   "id": "89889dd7",
    "metadata": {
     "editable": true
    },
@@ -1206,7 +1208,7 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "id": "20ea1ea2",
+   "id": "de23da37",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1257,7 +1259,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3743f453",
+   "id": "4bb0195a",
    "metadata": {
     "editable": true
    },
@@ -1280,7 +1282,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0a0e233f",
+   "id": "f5a94a7a",
    "metadata": {
     "editable": true
    },
@@ -1291,7 +1293,7 @@
   {
    "cell_type": "code",
    "execution_count": 5,
-   "id": "09ac4619",
+   "id": "769a0fe3",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1343,7 +1345,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b6b421c6",
+   "id": "0e1ef278",
    "metadata": {
     "editable": true
    },
@@ -1356,7 +1358,7 @@
   {
    "cell_type": "code",
    "execution_count": 6,
-   "id": "69a4d95f",
+   "id": "f98213e3",
    "metadata": {
     "collapsed": false,
     "editable": true
diff --git a/doc/src/week45/week45.do.txt b/doc/src/week45/week45.do.txt
index bdd276b58..89d73dde3 100644
--- a/doc/src/week45/week45.do.txt
+++ b/doc/src/week45/week45.do.txt
@@ -6,6 +6,7 @@ DATE: today
 ===== Overview of week 45 =====
 
 * Thursday: Boosting methods, froma AdaBoost to Gradient boosting
+  * "Video of lecture":"https://youtu.be/mK48PfCxgYk"
 * Friday:  Gradient boosting and discussion of Decision trees and ensemble methods. Wrapping up trees and start discussing Support Vector Machines
 
 !bblock Videos