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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/ft_trans.html
----------------------------------------------------------------------
diff --git a/userguide/ft_engineering/ft_trans.html 
b/userguide/ft_engineering/ft_trans.html
index 2d17d1d..f553c82 100644
--- a/userguide/ft_engineering/ft_trans.html
+++ b/userguide/ft_engineering/ft_trans.html
@@ -980,6 +980,21 @@
             
         </li>
     
+        <li class="chapter " data-level="6.3.5" 
data-path="../binaryclass/news20_rf.html">
+            
+                <a href="../binaryclass/news20_rf.html">
+            
+                    
+                        <b>6.3.5.</b>
+                    
+                    Random Forest
+            
+                </a>
+            
+
+            
+        </li>
+    
 
             </ul>
             
@@ -1324,7 +1339,7 @@
                     
                         <b>7.2.3.</b>
                     
-                    RandomForest
+                    Random Forest
             
                 </a>
             
@@ -2165,7 +2180,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/hashing.html
----------------------------------------------------------------------
diff --git a/userguide/ft_engineering/hashing.html 
b/userguide/ft_engineering/hashing.html
index 4b5fd57..6ab2e9a 100644
--- a/userguide/ft_engineering/hashing.html
+++ b/userguide/ft_engineering/hashing.html
@@ -980,6 +980,21 @@
             
         </li>
     
+        <li class="chapter " data-level="6.3.5" 
data-path="../binaryclass/news20_rf.html">
+            
+                <a href="../binaryclass/news20_rf.html">
+            
+                    
+                        <b>6.3.5.</b>
+                    
+                    Random Forest
+            
+                </a>
+            
+
+            
+        </li>
+    
 
             </ul>
             
@@ -1324,7 +1339,7 @@
                     
                         <b>7.2.3.</b>
                     
-                    RandomForest
+                    Random Forest
             
                 </a>
             
@@ -2116,40 +2131,57 @@ Find the differences in the following examples.</p>
 
 <h2 id="featurehashing-function"><code>feature_hashing</code> function</h2>
 <p><code>feature_hashing</code> applies <a 
href="https://github.com/aappleby/smhasher"; target="_blank">MurmurHash3</a> 
hashing to features. </p>
-<pre><code class="lang-sql">select feature_hashing(&apos;aaa&apos;);
-&gt; 4063537
-
-select feature_hashing(&apos;aaa&apos;,&apos;-features 3&apos;);
-&gt; 2
-
-select feature_hashing(array(&apos;aaa&apos;,&apos;bbb&apos;));
-&gt; [&quot;4063537&quot;,&quot;8459207&quot;]
-
-select feature_hashing(array(&apos;aaa&apos;,&apos;bbb&apos;),&apos;-features 
10&apos;);
-&gt; [&quot;7&quot;,&quot;1&quot;]
-
-select 
feature_hashing(array(&apos;aaa:1.0&apos;,&apos;aaa&apos;,&apos;bbb:2.0&apos;));
-&gt; [&quot;4063537:1.0&quot;,&quot;4063537&quot;,&quot;8459207:2.0&quot;]
-
-select feature_hashing(array(1,2,3));
-&gt; [&quot;11293631&quot;,&quot;3322224&quot;,&quot;4331412&quot;]
-
-select feature_hashing(array(&apos;1&apos;,&apos;2&apos;,&apos;3&apos;));
-&gt; [&quot;11293631&quot;,&quot;3322224&quot;,&quot;4331412&quot;]
-
-select 
feature_hashing(array(&apos;1:0.1&apos;,&apos;2:0.2&apos;,&apos;3:0.3&apos;));
-&gt; [&quot;11293631:0.1&quot;,&quot;3322224:0.2&quot;,&quot;4331412:0.3&quot;]
-
-select feature_hashing(features), features from training_fm limit 2;
-
-&gt; [&quot;1803454&quot;,&quot;6630176&quot;]   
[&quot;userid#5689&quot;,&quot;movieid#3072&quot;]
-&gt; [&quot;1828616&quot;,&quot;6238429&quot;]   
[&quot;userid#4505&quot;,&quot;movieid#2331&quot;]
-
-select 
feature_hashing(array(&quot;userid#4505:3.3&quot;,&quot;movieid#2331:4.999&quot;,
 &quot;movieid#2331&quot;));
-
-&gt; [&quot;1828616:3.3&quot;,&quot;6238429:4.999&quot;,&quot;6238429&quot;]
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-string">&apos;aaa&apos;</span>);
+</code></pre>
+<blockquote>
+<p>4063537</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-string">&apos;aaa&apos;</span>,<span 
class="hljs-string">&apos;-features 3&apos;</span>);
+</code></pre>
+<blockquote>
+<p>2</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;aaa&apos;</span>,<span 
class="hljs-string">&apos;bbb&apos;</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;4063537&quot;,&quot;8459207&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;aaa&apos;</span>,<span 
class="hljs-string">&apos;bbb&apos;</span>),<span 
class="hljs-string">&apos;-features 10&apos;</span>);
 </code></pre>
-<p><em>Note: The hash value is starting from 1 and 0 is system reserved for a 
bias clause. The default number of features are 16777217 (2^24). You can 
control the number of features by <code>-num_features</code> (or 
<code>-features</code>) option.</em></p>
+<blockquote>
+<p>[&quot;7&quot;,&quot;1&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;aaa:1.0&apos;</span>,<span 
class="hljs-string">&apos;aaa&apos;</span>,<span 
class="hljs-string">&apos;bbb:2.0&apos;</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;4063537:1.0&quot;,&quot;4063537&quot;,&quot;8459207:2.0&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-number">1</span>,<span class="hljs-number">2</span>,<span 
class="hljs-number">3</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;11293631&quot;,&quot;3322224&quot;,&quot;4331412&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;1&apos;</span>,<span 
class="hljs-string">&apos;2&apos;</span>,<span 
class="hljs-string">&apos;3&apos;</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;11293631&quot;,&quot;3322224&quot;,&quot;4331412&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;1:0.1&apos;</span>,<span 
class="hljs-string">&apos;2:0.2&apos;</span>,<span 
class="hljs-string">&apos;3:0.3&apos;</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;11293631:0.1&quot;,&quot;3322224:0.2&quot;,&quot;4331412:0.3&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(features), features <span class="hljs-keyword">from</span> 
training_fm <span class="hljs-keyword">limit</span> <span 
class="hljs-number">2</span>;
+</code></pre>
+<blockquote>
+<p>[&quot;1803454&quot;,&quot;6630176&quot;]   
[&quot;userid#5689&quot;,&quot;movieid#3072&quot;]
+[&quot;1828616&quot;,&quot;6238429&quot;]   
[&quot;userid#4505&quot;,&quot;movieid#2331&quot;]</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
feature_hashing(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&quot;userid#4505:3.3&quot;</span>,<span 
class="hljs-string">&quot;movieid#2331:4.999&quot;</span>, <span 
class="hljs-string">&quot;movieid#2331&quot;</span>));
+</code></pre>
+<blockquote>
+<p>[&quot;1828616:3.3&quot;,&quot;6238429:4.999&quot;,&quot;6238429&quot;]</p>
+</blockquote>
 <pre><code class="lang-sql">select feature_hashing(null,&apos;-help&apos;);
 
 usage: feature_hashing(array&lt;string&gt; features [, const string options]) -
@@ -2159,38 +2191,51 @@ usage: feature_hashing(array&lt;string&gt; features [, 
const string options]) -
                                   16777217 (2^24)]
  -help                            Show function help
 </code></pre>
+<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>The hash value is starting from 1 and 0 is system 
reserved for a bias clause. The default number of features are 16777217 (2^24). 
+You can control the number of features by <code>-num_features</code> (or 
<code>-features</code>) option.</p></div></div>
 <h2 id="mhash-function"><code>mhash</code> function</h2>
-<pre><code class="lang-sql">describe function extended mhash;
-&gt; mhash(string word) returns a murmurhash3 INT value starting from 1
+<pre><code class="lang-sql"><span class="hljs-keyword">describe</span> <span 
class="hljs-keyword">function</span> <span class="hljs-keyword">extended</span> 
mhash;
 </code></pre>
-<pre><code class="lang-sql">
-select mhash(&apos;aaa&apos;);
-&gt; 4063537
+<blockquote>
+<p>mhash(string word) returns a murmurhash3 INT value starting from 1</p>
+</blockquote>
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
mhash(<span class="hljs-string">&apos;aaa&apos;</span>);
 </code></pre>
+<blockquote>
+<p>4063537</p>
+</blockquote>
 <p><em>Note: The default number of features are <code>16777216 
(2^24)</code>.</em></p>
-<pre><code class="lang-sql">set hivevar:num_features=16777216;
-
-select mhash(&apos;aaa&apos;,${num_features});
-&gt;4063537
+<pre><code class="lang-sql"><span class="hljs-keyword">set</span> 
hivevar:num_features=<span class="hljs-number">16777216</span>;
+<span class="hljs-keyword">select</span> mhash(<span 
class="hljs-string">&apos;aaa&apos;</span>,${num_features});
 </code></pre>
+<blockquote>
+<p>4063537</p>
+</blockquote>
 <p><em>Note: <code>mhash</code> returns a <code>+1&apos;d</code> murmurhash3 
value starting from 1. Never returns 0 (It&apos;s a system reserved 
number).</em></p>
-<pre><code class="lang-sql">set hivevar:num_features=1;
-
-select mhash(&apos;aaa&apos;,${num_features});
-&gt; 1
+<pre><code class="lang-sql"><span class="hljs-keyword">set</span> 
hivevar:num_features=<span class="hljs-number">1</span>;
+<span class="hljs-keyword">select</span> mhash(<span 
class="hljs-string">&apos;aaa&apos;</span>,${num_features});
 </code></pre>
+<blockquote>
+<p>1</p>
+</blockquote>
 <p><em>Note: <code>mhash</code> does not considers feature values.</em></p>
-<pre><code class="lang-sql">select mhash(&apos;aaa:2.0&apos;);
-&gt; 2746618
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
mhash(<span class="hljs-string">&apos;aaa:2.0&apos;</span>);
 </code></pre>
+<blockquote>
+<p>2746618</p>
+</blockquote>
 <p><em>Note: <code>mhash</code> always returns a scalar INT value.</em></p>
-<pre><code class="lang-sql">select 
mhash(array(&apos;aaa&apos;,&apos;bbb&apos;));
-&gt; 9566153
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
mhash(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;aaa&apos;</span>,<span 
class="hljs-string">&apos;bbb&apos;</span>));
 </code></pre>
+<blockquote>
+<p>9566153</p>
+</blockquote>
 <p><em>Note: <code>mhash</code> value of an array is element 
order-sentitive.</em></p>
-<pre><code class="lang-sql">select 
mhash(array(&apos;bbb&apos;,&apos;aaa&apos;));
-&gt; 3874068
+<pre><code class="lang-sql"><span class="hljs-keyword">select</span> 
mhash(<span class="hljs-built_in">array</span>(<span 
class="hljs-string">&apos;bbb&apos;</span>,<span 
class="hljs-string">&apos;aaa&apos;</span>));
 </code></pre>
+<blockquote>
+<p>3874068</p>
+</blockquote>
 <p><div id="page-footer" class="localized-footer"><hr><!--
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/pairing.html
----------------------------------------------------------------------
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data-path="../binaryclass/news20_rf.html">
+            
+                <a href="../binaryclass/news20_rf.html">
+            
+                    
+                        <b>6.3.5.</b>
+                    
+                    Random Forest
+            
+                </a>
+            
+
+            
+        </li>
+    
 
             </ul>
             
@@ -1324,7 +1339,7 @@
                     
                         <b>7.2.3.</b>
                     
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/polynomial.html
----------------------------------------------------------------------
diff --git a/userguide/ft_engineering/polynomial.html 
b/userguide/ft_engineering/polynomial.html
index fcdf1d5..ebb11fb 100644
--- a/userguide/ft_engineering/polynomial.html
+++ b/userguide/ft_engineering/polynomial.html
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+        <li class="chapter " data-level="6.3.5" 
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+            
+                <a href="../binaryclass/news20_rf.html">
+            
+                    
+                        <b>6.3.5.</b>
+                    
+                    Random Forest
+            
+                </a>
+            
+
+            
+        </li>
+    
 
             </ul>
             
@@ -1324,7 +1339,7 @@
                     
                         <b>7.2.3.</b>
                     
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/quantify.html
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diff --git a/userguide/ft_engineering/quantify.html 
b/userguide/ft_engineering/quantify.html
index 0f4087b..92c843d 100644
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+++ b/userguide/ft_engineering/quantify.html
@@ -980,6 +980,21 @@
             
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+            
+                <a href="../binaryclass/news20_rf.html">
+            
+                    
+                        <b>6.3.5.</b>
+                    
+                    Random Forest
+            
+                </a>
+            
+
+            
+        </li>
+    
 
             </ul>
             
@@ -1324,7 +1339,7 @@
                     
                         <b>7.2.3.</b>
                     
-                    RandomForest
+                    Random Forest
             
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/eb070238/userguide/ft_engineering/selection.html
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