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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/8ac7233d/userguide/misc/approx.html
----------------------------------------------------------------------
diff --git a/userguide/misc/approx.html b/userguide/misc/approx.html
index fa26a16..2d78dd3 100644
--- a/userguide/misc/approx.html
+++ b/userguide/misc/approx.html
@@ -2461,7 +2461,7 @@ 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/8ac7233d/userguide/misc/funcs.html
----------------------------------------------------------------------
diff --git a/userguide/misc/funcs.html b/userguide/misc/funcs.html
index 79ee04b..4417bf9 100644
--- a/userguide/misc/funcs.html
+++ b/userguide/misc/funcs.html
@@ -2841,7 +2841,7 @@ bloom <span class="hljs-keyword">as</span> (
 <pre><code class="lang-sql">WITH dual AS (<span 
class="hljs-keyword">SELECT</span> <span class="hljs-number">1</span>) <span 
class="hljs-keyword">SELECT</span> lr_datagen(<span 
class="hljs-string">&apos;-n_examples 1k -n_features 10&apos;</span>) <span 
class="hljs-keyword">FROM</span> dual;
 </code></pre>
 </li>
-<li><p><code>bm25(int termFrequency, int docLength, double avgDocLength, int 
numDocs, int numDocsWithTerm [, const string options])</code> - Return an Okapi 
BM25 score in double</p>
+<li><p><code>bm25(double termFrequency, int docLength, double avgDocLength, 
int numDocs, int numDocsWithTerm [, const string options])</code> - Return an 
Okapi BM25 score in double</p>
 </li>
 <li><p><code>tf(string text)</code> - Return a term frequency in &lt;string, 
float&gt;</p>
 </li>
@@ -2901,7 +2901,7 @@ 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/8ac7233d/userguide/misc/generic_funcs.html
----------------------------------------------------------------------
diff --git a/userguide/misc/generic_funcs.html 
b/userguide/misc/generic_funcs.html
index 51bc49d..d8c56e4 100644
--- a/userguide/misc/generic_funcs.html
+++ b/userguide/misc/generic_funcs.html
@@ -2512,7 +2512,9 @@
     to_ordered_list(<span class="hljs-keyword">value</span>, <span 
class="hljs-keyword">key</span>, <span class="hljs-string">&apos;-k -2 
-reverse&apos;</span>), <span class="hljs-comment">-- [apple, candy] (reverse 
tail-k = top-k)</span>
     to_ordered_list(<span class="hljs-keyword">value</span>, <span 
class="hljs-string">&apos;-k 2&apos;</span>),                <span 
class="hljs-comment">-- [egg, donut] (alphabetically)</span>
     to_ordered_list(<span class="hljs-keyword">key</span>, <span 
class="hljs-string">&apos;-k -2 -reverse&apos;</span>),        <span 
class="hljs-comment">-- [5, 4] (top-2 keys)</span>
-    to_ordered_list(<span class="hljs-keyword">key</span>)                     
      <span class="hljs-comment">-- [2, 3, 3, 4, 5] (natural ordered 
keys)</span>
+    to_ordered_list(<span class="hljs-keyword">key</span>),                    
      <span class="hljs-comment">-- [2, 3, 3, 4, 5] (natural ordered 
keys)</span>
+    to_ordered_list(<span class="hljs-keyword">value</span>, <span 
class="hljs-keyword">key</span>, <span class="hljs-string">&apos;-k 2 
-kv_map&apos;</span>),   <span class="hljs-comment">-- 
{4:&quot;candy&quot;,5:&quot;apple&quot;}</span>
+    to_ordered_list(<span class="hljs-keyword">value</span>, <span 
class="hljs-keyword">key</span>, <span class="hljs-string">&apos;-k 2 
-vk_map&apos;</span>)    <span class="hljs-comment">-- 
{&quot;candy&quot;:4,&quot;apple&quot;:5}</span>
 <span class="hljs-keyword">FROM</span>
     t
 </code></pre>
@@ -2974,7 +2976,7 @@ Apache Hivemall is an effort undergoing incubation at The 
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