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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/binaryclass/news20_scw.html
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diff --git a/userguide/binaryclass/news20_scw.html 
b/userguide/binaryclass/news20_scw.html
index d7ce023..dbd24c1 100644
--- a/userguide/binaryclass/news20_scw.html
+++ b/userguide/binaryclass/news20_scw.html
@@ -2529,7 +2529,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/binaryclass/titanic_rf.html
----------------------------------------------------------------------
diff --git a/userguide/binaryclass/titanic_rf.html 
b/userguide/binaryclass/titanic_rf.html
index 7b90b87..9223303 100644
--- a/userguide/binaryclass/titanic_rf.html
+++ b/userguide/binaryclass/titanic_rf.html
@@ -2227,7 +2227,7 @@ The example gives a baseline score without any feature 
engineering.</p>
 <li><a href="#training">Training</a></li>
 <li><a href="#prediction">Prediction</a></li>
 <li><a href="#kaggle-submission">Kaggle submission</a></li>
-<li><a href="#graphvis-export">Graphvis export</a></li>
+<li><a href="#graphviz-export">Graphviz export</a></li>
 <li><a href="#test-by-dividing-training-dataset">Test by dividing training 
dataset</a></li>
 </ul>
 
@@ -2430,7 +2430,7 @@ For example, <code>pclass</code> is a categorical 
variable.</p></div></div>
 sed -i <span class="hljs-_">-e</span> <span class="hljs-string">&quot;1i 
PassengerId,Survived&quot;</span> predicted_rf_submit.csv
 </code></pre>
 <p>Accuracy would gives <code>0.76555</code> for a Kaggle submission.</p>
-<h1 id="graphvis-export">Graphvis export</h1>
+<h1 id="graphviz-export">Graphviz export</h1>
 <div class="panel panel-primary"><div class="panel-heading"><h3 
class="panel-title" id="note"><i class="fa fa-edit"></i> Note</h3></div><div 
class="panel-body"><p><code>tree_export</code> feature is supported from 
Hivemall v0.5.0 or later.
 Better to limit tree depth on training by <code>-depth</code> option to plot a 
Decision Tree.</p></div></div>
 <p>Hivemall provide <code>tree_export</code> to export a decision tree into <a 
href="http://www.graphviz.org/"; target="_blank">Graphviz</a> or human-readable 
Javascript format. You can find the usage by issuing the following query:</p>
@@ -2444,20 +2444,20 @@ usage: tree_export(string model, const string options, 
optional
  -output_name,--outputName &lt;arg&gt;   output name [default: predicted]
  -r,--regression                   Is regression tree or not
  -t,--type &lt;arg&gt;                   Type of output [default: js,
-                                   javascript/js, graphvis/dot
+                                   javascript/js, graphviz/dot
 </code></pre><pre><code class="lang-sql"><span 
class="hljs-keyword">CREATE</span> <span class="hljs-keyword">TABLE</span> 
model_exported 
   <span class="hljs-keyword">STORED</span> <span 
class="hljs-keyword">AS</span> ORC tblproperties(<span 
class="hljs-string">&quot;orc.compress&quot;</span>=<span 
class="hljs-string">&quot;SNAPPY&quot;</span>)
 <span class="hljs-keyword">AS</span>
 <span class="hljs-keyword">select</span>
   model_id,
   tree_export(<span class="hljs-keyword">model</span>, <span 
class="hljs-string">&quot;-type javascript -output_name survived&quot;</span>, 
<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;pclass&apos;</span>,<span 
class="hljs-string">&apos;name&apos;</span>,<span 
class="hljs-string">&apos;sex&apos;</span>,<span 
class="hljs-string">&apos;age&apos;</span>,<span 
class="hljs-string">&apos;sibsp&apos;</span>,<span 
class="hljs-string">&apos;parch&apos;</span>,<span 
class="hljs-string">&apos;ticket&apos;</span>,<span 
class="hljs-string">&apos;fare&apos;</span>,<span 
class="hljs-string">&apos;cabin&apos;</span>,<span 
class="hljs-string">&apos;embarked&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;no&apos;</span>,<span 
class="hljs-string">&apos;yes&apos;</span>)) <span 
class="hljs-keyword">as</span> js,
-  tree_export(<span class="hljs-keyword">model</span>, <span 
class="hljs-string">&quot;-type graphvis -output_name survived&quot;</span>, 
<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;pclass&apos;</span>,<span 
class="hljs-string">&apos;name&apos;</span>,<span 
class="hljs-string">&apos;sex&apos;</span>,<span 
class="hljs-string">&apos;age&apos;</span>,<span 
class="hljs-string">&apos;sibsp&apos;</span>,<span 
class="hljs-string">&apos;parch&apos;</span>,<span 
class="hljs-string">&apos;ticket&apos;</span>,<span 
class="hljs-string">&apos;fare&apos;</span>,<span 
class="hljs-string">&apos;cabin&apos;</span>,<span 
class="hljs-string">&apos;embarked&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;no&apos;</span>,<span 
class="hljs-string">&apos;yes&apos;</span>)) <span 
class="hljs-keyword">as</span> dot
+  tree_export(<span class="hljs-keyword">model</span>, <span 
class="hljs-string">&quot;-type graphviz -output_name survived&quot;</span>, 
<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;pclass&apos;</span>,<span 
class="hljs-string">&apos;name&apos;</span>,<span 
class="hljs-string">&apos;sex&apos;</span>,<span 
class="hljs-string">&apos;age&apos;</span>,<span 
class="hljs-string">&apos;sibsp&apos;</span>,<span 
class="hljs-string">&apos;parch&apos;</span>,<span 
class="hljs-string">&apos;ticket&apos;</span>,<span 
class="hljs-string">&apos;fare&apos;</span>,<span 
class="hljs-string">&apos;cabin&apos;</span>,<span 
class="hljs-string">&apos;embarked&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;no&apos;</span>,<span 
class="hljs-string">&apos;yes&apos;</span>)) <span 
class="hljs-keyword">as</span> dot
 <span class="hljs-keyword">from</span>
   model_rf
 <span class="hljs-comment">-- limit 1</span>
 ;
 </code></pre>
-<p><a 
href="https://gist.github.com/myui/a83ba3795bad9b278cf8bcc59f946e2c#file-titanic-dot";
 target="_blank">Here is an example</a> plotting a decision tree using Graphvis 
or <a href="http://viz-js.com/"; target="_blank">Vis.js</a>.</p>
+<p><a 
href="https://gist.github.com/myui/a83ba3795bad9b278cf8bcc59f946e2c#file-titanic-dot";
 target="_blank">Here is an example</a> plotting a decision tree using Graphviz 
or <a href="http://viz-js.com/"; target="_blank">Vis.js</a>.</p>
 <hr>
 <h1 id="test-by-dividing-training-dataset">Test by dividing training 
dataset</h1>
 <pre><code class="lang-sql"><span class="hljs-keyword">drop</span> <span 
class="hljs-keyword">table</span> train_rf_07;
@@ -2613,7 +2613,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/binaryclass/webspam.html
----------------------------------------------------------------------
diff --git a/userguide/binaryclass/webspam.html 
b/userguide/binaryclass/webspam.html
index a0fa6a0..6d9f555 100644
--- a/userguide/binaryclass/webspam.html
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@@ -2270,7 +2270,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
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