http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/multiclass/iris_dataset.html
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diff --git a/userguide/multiclass/iris_dataset.html 
b/userguide/multiclass/iris_dataset.html
index 46ce1b0..ddb2b6a 100644
--- a/userguide/multiclass/iris_dataset.html
+++ b/userguide/multiclass/iris_dataset.html
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/multiclass/iris_randomforest.html
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diff --git a/userguide/multiclass/iris_randomforest.html 
b/userguide/multiclass/iris_randomforest.html
index b3c275b..a7e3386 100644
--- a/userguide/multiclass/iris_randomforest.html
+++ b/userguide/multiclass/iris_randomforest.html
@@ -2233,7 +2233,7 @@
 </ul>
 </li>
 <li><a href="#evaluation">Evaluation</a></li>
-<li><a href="#graphvis-export">Graphvis export</a></li>
+<li><a href="#graphviz-export">Graphviz export</a></li>
 </ul>
 
 </div><!-- tocstop -->
@@ -2518,7 +2518,7 @@ WITH t1 as (
 <blockquote>
 <p>0.98</p>
 </blockquote>
-<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>
@@ -2532,14 +2532,14 @@ 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&quot;</span>, <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;sepal_length&apos;</span>,<span 
class="hljs-string">&apos;sepal_width&apos;</span>,<span 
class="hljs-string">&apos;petal_length&apos;</span>,<span 
class="hljs-string">&apos;petak_width&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;Setosa&apos;</span>,<span 
class="hljs-string">&apos;Versicolour&apos;</span>,<span 
class="hljs-string">&apos;Virginica&apos;</span>)) <span 
class="hljs-keyword">as</span> js,
-  tree_export(<span class="hljs-keyword">model</span>, <span 
class="hljs-string">&quot;-type graphvis&quot;</span>, <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;sepal_length&apos;</span>,<span 
class="hljs-string">&apos;sepal_width&apos;</span>,<span 
class="hljs-string">&apos;petal_length&apos;</span>,<span 
class="hljs-string">&apos;petak_width&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;Setosa&apos;</span>,<span 
class="hljs-string">&apos;Versicolour&apos;</span>,<span 
class="hljs-string">&apos;Virginica&apos;</span>)) <span 
class="hljs-keyword">as</span> dot
+  tree_export(<span class="hljs-keyword">model</span>, <span 
class="hljs-string">&quot;-type graphviz&quot;</span>, <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;sepal_length&apos;</span>,<span 
class="hljs-string">&apos;sepal_width&apos;</span>,<span 
class="hljs-string">&apos;petal_length&apos;</span>,<span 
class="hljs-string">&apos;petak_width&apos;</span>), <span 
class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;Setosa&apos;</span>,<span 
class="hljs-string">&apos;Versicolour&apos;</span>,<span 
class="hljs-string">&apos;Virginica&apos;</span>)) <span 
class="hljs-keyword">as</span> dot
 <span class="hljs-keyword">from</span>
   <span class="hljs-keyword">model</span>
 <span class="hljs-comment">-- limit 1</span>
@@ -2574,7 +2574,7 @@ usage: tree_export(string model, const string options, 
optional
  12 [label=&lt;predicted = Virginica&gt;, 
fillcolor=&quot;0.6667,1.000,1.000&quot;, shape=ellipse];
  8 -&gt; 12;
 }
-</code></pre><p><img src="../resources/images/iris.png" alt="Iris Graphvis 
output"></p>
+</code></pre><p><img src="../resources/images/iris.png" alt="Iris Graphviz 
output"></p>
 <p>You can draw a graph by <code>dot -Tpng iris.dot -o iris.png</code> or 
using <a href="http://viz-js.com/"; target="_blank">Viz.js</a>.</p>
 <p><div id="page-footer" class="localized-footer"><hr><!--
   Licensed to the Apache Software Foundation (ASF) under one
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/c5168cef/userguide/multiclass/iris_scw.html
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diff --git a/userguide/multiclass/iris_scw.html 
b/userguide/multiclass/iris_scw.html
index c2b2c0b..f68a23d 100644
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