http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/ba518dab/userguide/geospatial/latlon.html
----------------------------------------------------------------------
diff --git a/userguide/geospatial/latlon.html b/userguide/geospatial/latlon.html
index 02fecbd..b23d535 100644
--- a/userguide/geospatial/latlon.html
+++ b/userguide/geospatial/latlon.html
@@ -598,14 +598,30 @@
             
         </li>
     
-        <li class="chapter " data-level="3.5" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.5" 
data-path="../ft_engineering/pairing.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/pairing.html">
             
                     
                         <b>3.5.</b>
                     
-                    TF-IDF Calculation
+                    FEATURE PAIRING
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.5.1" 
data-path="../ft_engineering/polynomial.html">
+            
+                <a href="../ft_engineering/polynomial.html">
+            
+                    
+                        <b>3.5.1.</b>
+                    
+                    Polynomial Features
             
                 </a>
             
@@ -613,6 +629,11 @@
             
         </li>
     
+
+            </ul>
+            
+        </li>
+    
         <li class="chapter " data-level="3.6" 
data-path="../ft_engineering/ft_trans.html">
             
                 <a href="../ft_engineering/ft_trans.html">
@@ -664,6 +685,21 @@
             
         </li>
     
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.</b>
+                    
+                    TF-IDF Calculation
+            
+                </a>
+            
+
+            
+        </li>
+    
 
     
         
@@ -761,7 +797,7 @@
 
     
         
-        <li class="header">Part V - Prediction</li>
+        <li class="header">Part V - Supervised Learning</li>
         
         
     
@@ -780,27 +816,19 @@
             
         </li>
     
-        <li class="chapter " data-level="5.2" 
data-path="../regression/general.html">
-            
-                <a href="../regression/general.html">
-            
-                    
-                        <b>5.2.</b>
-                    
-                    Regression
-            
-                </a>
-            
 
-            
-        </li>
     
-        <li class="chapter " data-level="5.3" 
data-path="../binaryclass/general.html">
+        
+        <li class="header">Part VI - Binary classification</li>
+        
+        
+    
+        <li class="chapter " data-level="6.1" 
data-path="../binaryclass/general.html">
             
                 <a href="../binaryclass/general.html">
             
                     
-                        <b>5.3.</b>
+                        <b>6.1.</b>
                     
                     Binary Classification
             
@@ -810,21 +838,14 @@
             
         </li>
     
-
-    
-        
-        <li class="header">Part VI - Binary classification tutorials</li>
-        
-        
-    
-        <li class="chapter " data-level="6.1" 
data-path="../binaryclass/a9a.html">
+        <li class="chapter " data-level="6.2" 
data-path="../binaryclass/a9a.html">
             
                 <a href="../binaryclass/a9a.html">
             
                     
-                        <b>6.1.</b>
+                        <b>6.2.</b>
                     
-                    a9a
+                    a9a tutorial
             
                 </a>
             
@@ -833,12 +854,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.1.1" 
data-path="../binaryclass/a9a_dataset.html">
+        <li class="chapter " data-level="6.2.1" 
data-path="../binaryclass/a9a_dataset.html">
             
                 <a href="../binaryclass/a9a_dataset.html">
             
                     
-                        <b>6.1.1.</b>
+                        <b>6.2.1.</b>
                     
                     Data preparation
             
@@ -848,12 +869,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.1.2" 
data-path="../binaryclass/a9a_lr.html">
+        <li class="chapter " data-level="6.2.2" 
data-path="../binaryclass/a9a_lr.html">
             
                 <a href="../binaryclass/a9a_lr.html">
             
                     
-                        <b>6.1.2.</b>
+                        <b>6.2.2.</b>
                     
                     Logistic Regression
             
@@ -863,12 +884,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.1.3" 
data-path="../binaryclass/a9a_minibatch.html">
+        <li class="chapter " data-level="6.2.3" 
data-path="../binaryclass/a9a_minibatch.html">
             
                 <a href="../binaryclass/a9a_minibatch.html">
             
                     
-                        <b>6.1.3.</b>
+                        <b>6.2.3.</b>
                     
                     Mini-batch Gradient Descent
             
@@ -883,14 +904,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2" 
data-path="../binaryclass/news20.html">
+        <li class="chapter " data-level="6.3" 
data-path="../binaryclass/news20.html">
             
                 <a href="../binaryclass/news20.html">
             
                     
-                        <b>6.2.</b>
+                        <b>6.3.</b>
                     
-                    News20
+                    News20 tutorial
             
                 </a>
             
@@ -899,12 +920,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.2.1" 
data-path="../binaryclass/news20_dataset.html">
+        <li class="chapter " data-level="6.3.1" 
data-path="../binaryclass/news20_dataset.html">
             
                 <a href="../binaryclass/news20_dataset.html">
             
                     
-                        <b>6.2.1.</b>
+                        <b>6.3.1.</b>
                     
                     Data preparation
             
@@ -914,12 +935,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.2" 
data-path="../binaryclass/news20_pa.html">
+        <li class="chapter " data-level="6.3.2" 
data-path="../binaryclass/news20_pa.html">
             
                 <a href="../binaryclass/news20_pa.html">
             
                     
-                        <b>6.2.2.</b>
+                        <b>6.3.2.</b>
                     
                     Perceptron, Passive Aggressive
             
@@ -929,12 +950,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.3" 
data-path="../binaryclass/news20_scw.html">
+        <li class="chapter " data-level="6.3.3" 
data-path="../binaryclass/news20_scw.html">
             
                 <a href="../binaryclass/news20_scw.html">
             
                     
-                        <b>6.2.3.</b>
+                        <b>6.3.3.</b>
                     
                     CW, AROW, SCW
             
@@ -944,12 +965,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.4" 
data-path="../binaryclass/news20_adagrad.html">
+        <li class="chapter " data-level="6.3.4" 
data-path="../binaryclass/news20_adagrad.html">
             
                 <a href="../binaryclass/news20_adagrad.html">
             
                     
-                        <b>6.2.4.</b>
+                        <b>6.3.4.</b>
                     
                     AdaGradRDA, AdaGrad, AdaDelta
             
@@ -964,14 +985,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.3" 
data-path="../binaryclass/kdd2010a.html">
+        <li class="chapter " data-level="6.4" 
data-path="../binaryclass/kdd2010a.html">
             
                 <a href="../binaryclass/kdd2010a.html">
             
                     
-                        <b>6.3.</b>
+                        <b>6.4.</b>
                     
-                    KDD2010a
+                    KDD2010a tutorial
             
                 </a>
             
@@ -980,12 +1001,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.3.1" 
data-path="../binaryclass/kdd2010a_dataset.html">
+        <li class="chapter " data-level="6.4.1" 
data-path="../binaryclass/kdd2010a_dataset.html">
             
                 <a href="../binaryclass/kdd2010a_dataset.html">
             
                     
-                        <b>6.3.1.</b>
+                        <b>6.4.1.</b>
                     
                     Data preparation
             
@@ -995,12 +1016,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.3.2" 
data-path="../binaryclass/kdd2010a_scw.html">
+        <li class="chapter " data-level="6.4.2" 
data-path="../binaryclass/kdd2010a_scw.html">
             
                 <a href="../binaryclass/kdd2010a_scw.html">
             
                     
-                        <b>6.3.2.</b>
+                        <b>6.4.2.</b>
                     
                     PA, CW, AROW, SCW
             
@@ -1015,14 +1036,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.4" 
data-path="../binaryclass/kdd2010b.html">
+        <li class="chapter " data-level="6.5" 
data-path="../binaryclass/kdd2010b.html">
             
                 <a href="../binaryclass/kdd2010b.html">
             
                     
-                        <b>6.4.</b>
+                        <b>6.5.</b>
                     
-                    KDD2010b
+                    KDD2010b tutorial
             
                 </a>
             
@@ -1031,12 +1052,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.4.1" 
data-path="../binaryclass/kdd2010b_dataset.html">
+        <li class="chapter " data-level="6.5.1" 
data-path="../binaryclass/kdd2010b_dataset.html">
             
                 <a href="../binaryclass/kdd2010b_dataset.html">
             
                     
-                        <b>6.4.1.</b>
+                        <b>6.5.1.</b>
                     
                     Data preparation
             
@@ -1046,12 +1067,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.4.2" 
data-path="../binaryclass/kdd2010b_arow.html">
+        <li class="chapter " data-level="6.5.2" 
data-path="../binaryclass/kdd2010b_arow.html">
             
                 <a href="../binaryclass/kdd2010b_arow.html">
             
                     
-                        <b>6.4.2.</b>
+                        <b>6.5.2.</b>
                     
                     AROW
             
@@ -1066,14 +1087,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.5" 
data-path="../binaryclass/webspam.html">
+        <li class="chapter " data-level="6.6" 
data-path="../binaryclass/webspam.html">
             
                 <a href="../binaryclass/webspam.html">
             
                     
-                        <b>6.5.</b>
+                        <b>6.6.</b>
                     
-                    Webspam
+                    Webspam tutorial
             
                 </a>
             
@@ -1082,12 +1103,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.5.1" 
data-path="../binaryclass/webspam_dataset.html">
+        <li class="chapter " data-level="6.6.1" 
data-path="../binaryclass/webspam_dataset.html">
             
                 <a href="../binaryclass/webspam_dataset.html">
             
                     
-                        <b>6.5.1.</b>
+                        <b>6.6.1.</b>
                     
                     Data pareparation
             
@@ -1097,12 +1118,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.5.2" 
data-path="../binaryclass/webspam_scw.html">
+        <li class="chapter " data-level="6.6.2" 
data-path="../binaryclass/webspam_scw.html">
             
                 <a href="../binaryclass/webspam_scw.html">
             
                     
-                        <b>6.5.2.</b>
+                        <b>6.6.2.</b>
                     
                     PA1, AROW, SCW
             
@@ -1117,14 +1138,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.6" 
data-path="../binaryclass/titanic_rf.html">
+        <li class="chapter " data-level="6.7" 
data-path="../binaryclass/titanic_rf.html">
             
                 <a href="../binaryclass/titanic_rf.html">
             
                     
-                        <b>6.6.</b>
+                        <b>6.7.</b>
                     
-                    Kaggle Titanic
+                    Kaggle Titanic tutorial
             
                 </a>
             
@@ -1135,7 +1156,7 @@
 
     
         
-        <li class="header">Part VII - Multiclass classification tutorials</li>
+        <li class="header">Part VII - Multiclass classification</li>
         
         
     
@@ -1146,7 +1167,7 @@
                     
                         <b>7.1.</b>
                     
-                    News20 Multiclass
+                    News20 Multiclass tutorial
             
                 </a>
             
@@ -1257,7 +1278,7 @@
                     
                         <b>7.2.</b>
                     
-                    Iris
+                    Iris tutorial
             
                 </a>
             
@@ -1319,18 +1340,33 @@
 
     
         
-        <li class="header">Part VIII - Regression tutorials</li>
+        <li class="header">Part VIII - Regression</li>
         
         
     
-        <li class="chapter " data-level="8.1" 
data-path="../regression/e2006.html">
+        <li class="chapter " data-level="8.1" 
data-path="../regression/general.html">
             
-                <a href="../regression/e2006.html">
+                <a href="../regression/general.html">
             
                     
                         <b>8.1.</b>
                     
-                    E2006-tfidf regression
+                    Regression
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="8.2" 
data-path="../regression/e2006.html">
+            
+                <a href="../regression/e2006.html">
+            
+                    
+                        <b>8.2.</b>
+                    
+                    E2006-tfidf regression tutorial
             
                 </a>
             
@@ -1339,12 +1375,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="8.1.1" 
data-path="../regression/e2006_dataset.html">
+        <li class="chapter " data-level="8.2.1" 
data-path="../regression/e2006_dataset.html">
             
                 <a href="../regression/e2006_dataset.html">
             
                     
-                        <b>8.1.1.</b>
+                        <b>8.2.1.</b>
                     
                     Data preparation
             
@@ -1354,12 +1390,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.1.2" 
data-path="../regression/e2006_arow.html">
+        <li class="chapter " data-level="8.2.2" 
data-path="../regression/e2006_arow.html">
             
                 <a href="../regression/e2006_arow.html">
             
                     
-                        <b>8.1.2.</b>
+                        <b>8.2.2.</b>
                     
                     Passive Aggressive, AROW
             
@@ -1374,14 +1410,14 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2" 
data-path="../regression/kddcup12tr2.html">
+        <li class="chapter " data-level="8.3" 
data-path="../regression/kddcup12tr2.html">
             
                 <a href="../regression/kddcup12tr2.html">
             
                     
-                        <b>8.2.</b>
+                        <b>8.3.</b>
                     
-                    KDDCup 2012 track 2 CTR prediction
+                    KDDCup 2012 track 2 CTR prediction tutorial
             
                 </a>
             
@@ -1390,12 +1426,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="8.2.1" 
data-path="../regression/kddcup12tr2_dataset.html">
+        <li class="chapter " data-level="8.3.1" 
data-path="../regression/kddcup12tr2_dataset.html">
             
                 <a href="../regression/kddcup12tr2_dataset.html">
             
                     
-                        <b>8.2.1.</b>
+                        <b>8.3.1.</b>
                     
                     Data preparation
             
@@ -1405,12 +1441,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.2" 
data-path="../regression/kddcup12tr2_lr.html">
+        <li class="chapter " data-level="8.3.2" 
data-path="../regression/kddcup12tr2_lr.html">
             
                 <a href="../regression/kddcup12tr2_lr.html">
             
                     
-                        <b>8.2.2.</b>
+                        <b>8.3.2.</b>
                     
                     Logistic Regression, Passive Aggressive
             
@@ -1420,12 +1456,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.3" 
data-path="../regression/kddcup12tr2_lr_amplify.html">
+        <li class="chapter " data-level="8.3.3" 
data-path="../regression/kddcup12tr2_lr_amplify.html">
             
                 <a href="../regression/kddcup12tr2_lr_amplify.html">
             
                     
-                        <b>8.2.3.</b>
+                        <b>8.3.3.</b>
                     
                     Logistic Regression with Amplifier
             
@@ -1435,12 +1471,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.4" 
data-path="../regression/kddcup12tr2_adagrad.html">
+        <li class="chapter " data-level="8.3.4" 
data-path="../regression/kddcup12tr2_adagrad.html">
             
                 <a href="../regression/kddcup12tr2_adagrad.html">
             
                     
-                        <b>8.2.4.</b>
+                        <b>8.3.4.</b>
                     
                     AdaGrad, AdaDelta
             
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class="delimsizing mult"><span class="vlist"><span style="top:1.50501em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x239D;</span></span></span><span 
style="top:0.35000000000000014em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239C;</span></span></span><span 
style="top:-0.2500099999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239C;</span></span></span><span 
style="top:-1.4950299999999999em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239B;</span></span></span><span 
class="baseline-fix
 "><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span><span
 class="mord mathrm">1</span><span class="mbin">&#x2212;</span><span 
class="mord reset-textstyle displaystyle textstyle uncramped"><span 
class="mopen sizing reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span><span class="mfrac"><span class="vlist"><span 
style="top:0.686em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="reset-textstyle 
textstyle cramped"><span class="mord textstyle cramped"><span class="mord 
mathit" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:1em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-1.34003em;"><span class="fontsize-ensurer 
 reset-size5 size5"><span style="font-size:1em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped"><span class="mord textstyle 
uncramped"><span class="mop">ln</span><span class="minner textstyle 
uncramped"><span class="mopen style-wrap reset-textstyle textstyle uncramped" 
style="top:0em;"><span class="delimsizing size3">(</span></span><span 
class="mop">tan</span><span class="minner textstyle uncramped"><span 
class="mopen style-wrap reset-textstyle textstyle uncramped" 
style="top:0em;"><span class="delimsizing size1">(</span></span><span 
class="mord mathit" style="margin-right:0.01968em;">l</span><span class="mord 
mathit">a</span><span class="mord mathit">t</span><span 
class="mbin">&#x22C5;</span><span class="mord reset-textstyle textstyle 
uncramped"><span class="mopen sizing reset-size5 size5 reset-textstyle 
textstyle uncramped nulldelimiter"></span><span class="mfrac"><span 
class="vlist"><span style="top:0.345em;"><span class="fontsize-ensurer 
reset-size5 size5
 "><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-textstyle scriptstyle cramped mtight"><span class="mord 
scriptstyle cramped mtight"><span class="mord mathrm mtight">1</span><span 
class="mord mathrm mtight">8</span><span class="mord mathrm 
mtight">0</span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.394em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle uncramped mtight"><span class="mord scriptstyle uncramped 
mtight"><span class="mord mathit mtight" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></sp
 an></span><span class="mclose sizing reset-size5 size5 reset-textstyle 
textstyle uncramped nulldelimiter"></span></span><span class="mclose style-wrap 
reset-textstyle textstyle uncramped" style="top:0em;"><span class="delimsizing 
size1">)</span></span></span><span class="mbin">+</span><span class="mord 
reset-textstyle textstyle uncramped"><span class="mopen sizing reset-size5 
size5 reset-textstyle textstyle uncramped nulldelimiter"></span><span 
class="mfrac"><span class="vlist"><span style="top:0.5075000000000001em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle cramped mtight"><span class="mord scriptstyle cramped mtight"><span 
class="mop mtight">cos</span><span class="minner scriptstyle cramped 
mtight"><span class="mopen style-wrap reset-scriptstyle textstyle uncramped 
mtight" style="top:0.07500000000000001em;"><span 
class="mtight">(</span></span><span class="mord mathit mtight" style="m
 argin-right:0.01968em;">l</span><span class="mord mathit mtight">a</span><span 
class="mord mathit mtight">t</span><span class="mbin 
mtight">&#x22C5;</span><span class="mord reset-scriptstyle scriptstyle cramped 
mtight"><span class="mopen sizing reset-size5 size5 reset-scriptstyle textstyle 
uncramped nulldelimiter"></span><span class="mfrac"><span class="vlist"><span 
style="top:0.344em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-scriptstyle 
scriptscriptstyle cramped mtight"><span class="mord scriptscriptstyle cramped 
mtight"><span class="mord mathrm mtight">1</span><span class="mord mathrm 
mtight">8</span><span class="mord mathrm 
mtight">0</span></span></span></span><span 
style="top:-0.22142857142857142em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-scriptstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.384em;">
 <span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-scriptstyle 
scriptscriptstyle cramped mtight"><span class="mord scriptscriptstyle cramped 
mtight"><span class="mord mathit mtight" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="mclose sizing reset-size5 size5 reset-scriptstyle textstyle uncramped 
nulldelimiter"></span></span><span class="mclose style-wrap reset-scriptstyle 
textstyle uncramped mtight" style="top:0.07500000000000001em;"><span 
class="mtight">)</span></span></span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:1em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.
 394em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle uncramped mtight"><span class="mord scriptstyle uncramped 
mtight"><span class="mord mathrm mtight">1</span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="mclose sizing reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span></span><span class="mclose style-wrap reset-textstyle 
textstyle uncramped" style="top:0em;"><span class="delimsizing 
size3">)</span></span></span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="mclose sizing reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span></span><span class="mclose style-wr
 ap reset-textstyle textstyle uncramped"><span class="delimsizing mult"><span 
class="vlist"><span style="top:1.50501em;"><span class="fontsize-ensurer 
reset-size5 size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A0;</span></span></span><span 
style="top:0.35000000000000014em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239F;</span></span></span><span 
style="top:-0.2500099999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239F;</span></span></span><span 
style="top:-1.4950299999999999em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239E;</span></span></span><span 
class="baseline-fix"><span class="fo
 ntsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span><span
 class="mbin">&#x22C5;</span><span class="mord"><span class="mord 
mathrm">2</span><span class="msupsub"><span class="vlist"><span 
style="top:-0.41300000000000003em;margin-right:0.05em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle uncramped mtight"><span class="mord scriptstyle uncramped 
mtight"><span class="mord mathit mtight" 
style="margin-right:0.04398em;">z</span><span class="mbin 
mtight">&#x2212;</span><span class="mord mathrm 
mtight">1</span></span></span></span><span class="baseline-fix"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span><span
 class="mclose style-wrap reset-textstyle textstyle uncramped"><span 
class="delimsizing mult"><span class="vlist"><span style="
 top:1.5050149999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A6;</span></span></span><span 
style="top:0.35001499999999997em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-0.250985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-0.851985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-1.452985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizing
 inner delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-2.053985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span></span></span><span
 class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span></span></span></span></span></p>
+</annotation></semantics></math></span><span class="katex-html" 
aria-hidden="true"><span class="strut" style="height:4.5200475em;"></span><span 
class="strut bottom" 
style="height:8.540095em;vertical-align:-4.0200475em;"></span><span class="base 
displaystyle textstyle uncramped"><span class="mord"><span class="mtable"><span 
class="col-align-r"><span class="vlist"><span 
style="top:-3.0700475000000003em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span class="mord 
displaystyle textstyle uncramped"><span class="mord 
mathit">x</span></span></span><span style="top:-1.2800175000000003em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="mord displaystyle 
textstyle uncramped"></span></span><span 
style="top:1.8700124999999996em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span class="mord 
displaystyle textstyle unc
 ramped"><span class="mord mathit" 
style="margin-right:0.03588em;">y</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="col-align-l"><span class="vlist"><span 
style="top:-3.0700475000000003em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:1em;">&#x200B;</span></span><span class="mord 
displaystyle textstyle uncramped"><span class="mord displaystyle textstyle 
uncramped"></span><span class="mrel">=</span><span class="minner displaystyle 
textstyle uncramped"><span class="style-wrap reset-textstyle textstyle 
uncramped" style="top:0em;"><span class="delimsizing 
size3">&#x230A;</span></span><span class="mord reset-textstyle displaystyle 
textstyle uncramped"><span class="sizing reset-size5 size5 reset-textstyle 
textstyle uncramped nulldelimiter"></span><span class="mfrac"><span 
class="vlist"><span style="top:0.686em;"><span class
 ="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
textstyle cramped"><span class="mord textstyle cramped"><span class="mord 
mathrm">3</span><span class="mord mathrm">6</span><span class="mord 
mathrm">0</span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.677em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
textstyle uncramped"><span class="mord textstyle uncramped"><span class="mord 
mathit" style="margin-right:0.01968em;">l</span><span class="mord 
mathit">o</span><span class="mord mathit">n</span><span 
class="mbin">+</span><span class="mord mathrm">1</span><span class="mord 
mathrm">8</span><span class="mord mathrm">0</span></sp
 an></span></span><span class="baseline-fix"><span class="fontsize-ensurer 
reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="sizing reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span></span><span class="mbin">&#x22C5;</span><span 
class="mord"><span class="mord mathrm">2</span><span class="vlist"><span 
style="top:-0.413em;margin-right:0.05em;"><span class="fontsize-ensurer 
reset-size5 size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-textstyle scriptstyle uncramped"><span class="mord mathit" 
style="margin-right:0.04398em;">z</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="style-wrap reset-textstyle textstyle uncramped" style="top:0em;"><span 
class="delimsizing size3">&#x230B;</span></span></span></span></span><span 
style="top:1.870012
 5000000005em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="mord displaystyle 
textstyle uncramped"><span class="mord displaystyle textstyle 
uncramped"></span><span class="mrel">=</span><span class="minner displaystyle 
textstyle uncramped"><span class="style-wrap reset-textstyle textstyle 
uncramped"><span class="delimsizing mult"><span class="vlist"><span 
style="top:1.5050149999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A3;</span></span></span><span 
style="top:0.35001499999999997em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A2;</span></span></span><span 
style="top:-0.250985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span clas
 s="delimsizinginner delim-size4"><span>&#x23A2;</span></span></span><span 
style="top:-0.851985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A2;</span></span></span><span 
style="top:-1.452985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A2;</span></span></span><span 
style="top:-2.053985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A2;</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span><span
 class="minner displaystyle textstyle uncramped"><span class="style-wrap 
reset-textstyle textstyle uncramped"><span class="delimsizing
  mult"><span class="vlist"><span style="top:1.50501em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x239D;</span></span></span><span 
style="top:0.35000000000000014em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239C;</span></span></span><span 
style="top:-0.2500099999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239C;</span></span></span><span 
style="top:-1.4950299999999999em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239B;</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&
 #x200B;</span></span>&#x200B;</span></span></span></span><span class="mord 
mathrm">1</span><span class="mbin">&#x2212;</span><span class="mord 
reset-textstyle displaystyle textstyle uncramped"><span class="sizing 
reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span><span class="mfrac"><span class="vlist"><span 
style="top:0.686em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="reset-textstyle 
textstyle cramped"><span class="mord textstyle cramped"><span class="mord 
mathit" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:1em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-1.34003em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="rese
 t-textstyle textstyle uncramped"><span class="mord textstyle uncramped"><span 
class="mop">ln</span><span class="minner textstyle uncramped"><span 
class="style-wrap reset-textstyle textstyle uncramped" style="top:0em;"><span 
class="delimsizing size3">(</span></span><span class="mop">tan</span><span 
class="minner textstyle uncramped"><span class="style-wrap reset-textstyle 
textstyle uncramped" style="top:0em;"><span class="delimsizing 
size1">(</span></span><span class="mord mathit" 
style="margin-right:0.01968em;">l</span><span class="mord mathit">a</span><span 
class="mord mathit">t</span><span class="mbin">&#x22C5;</span><span class="mord 
reset-textstyle textstyle uncramped"><span class="sizing reset-size5 size5 
reset-textstyle textstyle uncramped nulldelimiter"></span><span 
class="mfrac"><span class="vlist"><span style="top:0.345em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle cramped"><s
 pan class="mord scriptstyle cramped"><span class="mord mathrm">1</span><span 
class="mord mathrm">8</span><span class="mord 
mathrm">0</span></span></span></span><span 
style="top:-0.22999999999999998em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-textstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.394em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle uncramped"><span class="mord scriptstyle uncramped"><span 
class="mord mathit" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="sizing reset-size5 size5 reset-textstyle textstyle uncramped 
nulldelimiter"></span></span><span class="style-wrap reset-textstyle textstyl
 e uncramped" style="top:0em;"><span class="delimsizing 
size1">)</span></span></span><span class="mbin">+</span><span class="mord 
reset-textstyle textstyle uncramped"><span class="sizing reset-size5 size5 
reset-textstyle textstyle uncramped nulldelimiter"></span><span 
class="mfrac"><span class="vlist"><span style="top:0.5075000000000001em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:1em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle cramped"><span class="mord scriptstyle cramped"><span 
class="mop">cos</span><span class="minner scriptstyle cramped"><span 
class="style-wrap reset-scriptstyle textstyle uncramped" 
style="top:0.07500000000000001em;">(</span><span class="mord mathit" 
style="margin-right:0.01968em;">l</span><span class="mord mathit">a</span><span 
class="mord mathit">t</span><span class="mbin">&#x22C5;</span><span class="mord 
reset-scriptstyle scriptstyle cramped"><span class="sizing reset-size5 size5 
reset-scriptstyle textstyle 
 uncramped nulldelimiter"></span><span class="mfrac"><span class="vlist"><span 
style="top:0.345em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-scriptstyle 
scriptscriptstyle cramped"><span class="mord scriptscriptstyle cramped"><span 
class="mord mathrm">1</span><span class="mord mathrm">8</span><span class="mord 
mathrm">0</span></span></span></span><span 
style="top:-0.22142857142857142em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="reset-scriptstyle textstyle uncramped frac-line"></span></span><span 
style="top:-0.394em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-scriptstyle 
scriptscriptstyle cramped"><span class="mord scriptscriptstyle cramped"><span 
class="mord mathit" 
style="margin-right:0.03588em;">&#x3C0;</span></span></span></span><span 
class="baseline-fix"><sp
 an class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="sizing reset-size5 size5 reset-scriptstyle textstyle uncramped 
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style="font-size:1em;">&#x200B;</span></span>&#x200B;</spa
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textstyle uncramped nulldelimiter"></span></span><span class="style-wrap 
reset-textstyle textstyle uncramped" style="top:0em;"><span class="delimsizing 
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class="sizing reset-size5 size5 reset-textstyle textstyle uncramped 
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size5"><span style="font-size:0em;">&#x200B;</span></span><span 
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style="top:-1.4950299999999999em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x239E;</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span><span
 class="mbin">&#x22C5;</span><span class="mord"><span class="mord 
mathrm">2</span><span class="vlist"><span 
style="top:-0.41300000000000003em;margin-right:0.05em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="reset-textstyle 
scriptstyle uncramp
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style="margin-right:0.04398em;">z</span><span class="mbin">&#x2212;</span><span 
class="mord mathrm">1</span></span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span><span 
class="style-wrap reset-textstyle textstyle uncramped"><span class="delimsizing 
mult"><span class="vlist"><span style="top:1.5050149999999998em;"><span 
class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
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style="top:0.35001499999999997em;"><span class="fontsize-ensurer reset-size5 
size5"><span style="font-size:0em;">&#x200B;</span></span><span 
class="delimsizinginner delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-0.250985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style=
 "font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-0.851985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-1.452985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
style="top:-2.053985em;"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span><span class="delimsizinginner 
delim-size4"><span>&#x23A5;</span></span></span><span 
class="baseline-fix"><span class="fontsize-ensurer reset-size5 size5"><span 
style="font-size:0em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span></span></span><span
 class="baseline-fix"><span class="fontsize-ensurer reset-size5 
 size5"><span 
style="font-size:1em;">&#x200B;</span></span>&#x200B;</span></span></span></span></span></span></span></span></span></p>
 <p>Refer <a href="http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames"; 
target="_blank">this page</a> for detail. Zoom level is well described in <a 
href="http://wiki.openstreetmap.org/wiki/Zoom_levels"; target="_blank">this 
page</a>.</p>
 <h3 id="usage">Usage</h3>
 <pre><code class="lang-sql">WITH data as (
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http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/ba518dab/userguide/getting_started/index.html
----------------------------------------------------------------------
diff --git a/userguide/getting_started/index.html 
b/userguide/getting_started/index.html
index f6643ed..8b0558b 100644
--- a/userguide/getting_started/index.html
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@@ -598,14 +598,30 @@
             
         </li>
     
-        <li class="chapter " data-level="3.5" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.5" 
data-path="../ft_engineering/pairing.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/pairing.html">
             
                     
                         <b>3.5.</b>
                     
-                    TF-IDF Calculation
+                    FEATURE PAIRING
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.5.1" 
data-path="../ft_engineering/polynomial.html">
+            
+                <a href="../ft_engineering/polynomial.html">
+            
+                    
+                        <b>3.5.1.</b>
+                    
+                    Polynomial Features
             
                 </a>
             
@@ -613,6 +629,11 @@
             
         </li>
     
+
+            </ul>
+            
+        </li>
+    
         <li class="chapter " data-level="3.6" 
data-path="../ft_engineering/ft_trans.html">
             
                 <a href="../ft_engineering/ft_trans.html">
@@ -664,6 +685,21 @@
             
         </li>
     
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.</b>
+                    
+                    TF-IDF Calculation
+            
+                </a>
+            
+
+            
+        </li>
+    
 
     
         
@@ -761,7 +797,7 @@
 
     
         
-        <li class="header">Part V - Prediction</li>
+        <li class="header">Part V - Supervised Learning</li>
         
         
     
@@ -780,27 +816,19 @@
             
         </li>
     
-        <li class="chapter " data-level="5.2" 
data-path="../regression/general.html">
-            
-                <a href="../regression/general.html">
-            
-                    
-                        <b>5.2.</b>
-                    
-                    Regression
-            
-                </a>
-            
 
-            
-        </li>
     
-        <li class="chapter " data-level="5.3" 
data-path="../binaryclass/general.html">
+        
+        <li class="header">Part VI - Binary classification</li>
+        
+        
+    
+        <li class="chapter " data-level="6.1" 
data-path="../binaryclass/general.html">
             
                 <a href="../binaryclass/general.html">
             
                     
-                        <b>5.3.</b>
+                        <b>6.1.</b>
                     
                     Binary Classification
             
@@ -810,21 +838,14 @@
             
         </li>
     
-
-    
-        
-        <li class="header">Part VI - Binary classification tutorials</li>
-        
-        
-    
-        <li class="chapter " data-level="6.1" 
data-path="../binaryclass/a9a.html">
+        <li class="chapter " data-level="6.2" 
data-path="../binaryclass/a9a.html">
             
                 <a href="../binaryclass/a9a.html">
             
                     
-                        <b>6.1.</b>
+                        <b>6.2.</b>
                     
-                    a9a
+                    a9a tutorial
             
                 </a>
             
@@ -833,12 +854,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.1.1" 
data-path="../binaryclass/a9a_dataset.html">
+        <li class="chapter " data-level="6.2.1" 
data-path="../binaryclass/a9a_dataset.html">
             
                 <a href="../binaryclass/a9a_dataset.html">
             
                     
-                        <b>6.1.1.</b>
+                        <b>6.2.1.</b>
                     
                     Data preparation
             
@@ -848,12 +869,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.1.2" 
data-path="../binaryclass/a9a_lr.html">
+        <li class="chapter " data-level="6.2.2" 
data-path="../binaryclass/a9a_lr.html">
             
                 <a href="../binaryclass/a9a_lr.html">
             
                     
-                        <b>6.1.2.</b>
+                        <b>6.2.2.</b>
                     
                     Logistic Regression
             
@@ -863,12 +884,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.1.3" 
data-path="../binaryclass/a9a_minibatch.html">
+        <li class="chapter " data-level="6.2.3" 
data-path="../binaryclass/a9a_minibatch.html">
             
                 <a href="../binaryclass/a9a_minibatch.html">
             
                     
-                        <b>6.1.3.</b>
+                        <b>6.2.3.</b>
                     
                     Mini-batch Gradient Descent
             
@@ -883,14 +904,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2" 
data-path="../binaryclass/news20.html">
+        <li class="chapter " data-level="6.3" 
data-path="../binaryclass/news20.html">
             
                 <a href="../binaryclass/news20.html">
             
                     
-                        <b>6.2.</b>
+                        <b>6.3.</b>
                     
-                    News20
+                    News20 tutorial
             
                 </a>
             
@@ -899,12 +920,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.2.1" 
data-path="../binaryclass/news20_dataset.html">
+        <li class="chapter " data-level="6.3.1" 
data-path="../binaryclass/news20_dataset.html">
             
                 <a href="../binaryclass/news20_dataset.html">
             
                     
-                        <b>6.2.1.</b>
+                        <b>6.3.1.</b>
                     
                     Data preparation
             
@@ -914,12 +935,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.2" 
data-path="../binaryclass/news20_pa.html">
+        <li class="chapter " data-level="6.3.2" 
data-path="../binaryclass/news20_pa.html">
             
                 <a href="../binaryclass/news20_pa.html">
             
                     
-                        <b>6.2.2.</b>
+                        <b>6.3.2.</b>
                     
                     Perceptron, Passive Aggressive
             
@@ -929,12 +950,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.3" 
data-path="../binaryclass/news20_scw.html">
+        <li class="chapter " data-level="6.3.3" 
data-path="../binaryclass/news20_scw.html">
             
                 <a href="../binaryclass/news20_scw.html">
             
                     
-                        <b>6.2.3.</b>
+                        <b>6.3.3.</b>
                     
                     CW, AROW, SCW
             
@@ -944,12 +965,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.2.4" 
data-path="../binaryclass/news20_adagrad.html">
+        <li class="chapter " data-level="6.3.4" 
data-path="../binaryclass/news20_adagrad.html">
             
                 <a href="../binaryclass/news20_adagrad.html">
             
                     
-                        <b>6.2.4.</b>
+                        <b>6.3.4.</b>
                     
                     AdaGradRDA, AdaGrad, AdaDelta
             
@@ -964,14 +985,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.3" 
data-path="../binaryclass/kdd2010a.html">
+        <li class="chapter " data-level="6.4" 
data-path="../binaryclass/kdd2010a.html">
             
                 <a href="../binaryclass/kdd2010a.html">
             
                     
-                        <b>6.3.</b>
+                        <b>6.4.</b>
                     
-                    KDD2010a
+                    KDD2010a tutorial
             
                 </a>
             
@@ -980,12 +1001,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.3.1" 
data-path="../binaryclass/kdd2010a_dataset.html">
+        <li class="chapter " data-level="6.4.1" 
data-path="../binaryclass/kdd2010a_dataset.html">
             
                 <a href="../binaryclass/kdd2010a_dataset.html">
             
                     
-                        <b>6.3.1.</b>
+                        <b>6.4.1.</b>
                     
                     Data preparation
             
@@ -995,12 +1016,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.3.2" 
data-path="../binaryclass/kdd2010a_scw.html">
+        <li class="chapter " data-level="6.4.2" 
data-path="../binaryclass/kdd2010a_scw.html">
             
                 <a href="../binaryclass/kdd2010a_scw.html">
             
                     
-                        <b>6.3.2.</b>
+                        <b>6.4.2.</b>
                     
                     PA, CW, AROW, SCW
             
@@ -1015,14 +1036,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.4" 
data-path="../binaryclass/kdd2010b.html">
+        <li class="chapter " data-level="6.5" 
data-path="../binaryclass/kdd2010b.html">
             
                 <a href="../binaryclass/kdd2010b.html">
             
                     
-                        <b>6.4.</b>
+                        <b>6.5.</b>
                     
-                    KDD2010b
+                    KDD2010b tutorial
             
                 </a>
             
@@ -1031,12 +1052,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.4.1" 
data-path="../binaryclass/kdd2010b_dataset.html">
+        <li class="chapter " data-level="6.5.1" 
data-path="../binaryclass/kdd2010b_dataset.html">
             
                 <a href="../binaryclass/kdd2010b_dataset.html">
             
                     
-                        <b>6.4.1.</b>
+                        <b>6.5.1.</b>
                     
                     Data preparation
             
@@ -1046,12 +1067,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.4.2" 
data-path="../binaryclass/kdd2010b_arow.html">
+        <li class="chapter " data-level="6.5.2" 
data-path="../binaryclass/kdd2010b_arow.html">
             
                 <a href="../binaryclass/kdd2010b_arow.html">
             
                     
-                        <b>6.4.2.</b>
+                        <b>6.5.2.</b>
                     
                     AROW
             
@@ -1066,14 +1087,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.5" 
data-path="../binaryclass/webspam.html">
+        <li class="chapter " data-level="6.6" 
data-path="../binaryclass/webspam.html">
             
                 <a href="../binaryclass/webspam.html">
             
                     
-                        <b>6.5.</b>
+                        <b>6.6.</b>
                     
-                    Webspam
+                    Webspam tutorial
             
                 </a>
             
@@ -1082,12 +1103,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="6.5.1" 
data-path="../binaryclass/webspam_dataset.html">
+        <li class="chapter " data-level="6.6.1" 
data-path="../binaryclass/webspam_dataset.html">
             
                 <a href="../binaryclass/webspam_dataset.html">
             
                     
-                        <b>6.5.1.</b>
+                        <b>6.6.1.</b>
                     
                     Data pareparation
             
@@ -1097,12 +1118,12 @@
             
         </li>
     
-        <li class="chapter " data-level="6.5.2" 
data-path="../binaryclass/webspam_scw.html">
+        <li class="chapter " data-level="6.6.2" 
data-path="../binaryclass/webspam_scw.html">
             
                 <a href="../binaryclass/webspam_scw.html">
             
                     
-                        <b>6.5.2.</b>
+                        <b>6.6.2.</b>
                     
                     PA1, AROW, SCW
             
@@ -1117,14 +1138,14 @@
             
         </li>
     
-        <li class="chapter " data-level="6.6" 
data-path="../binaryclass/titanic_rf.html">
+        <li class="chapter " data-level="6.7" 
data-path="../binaryclass/titanic_rf.html">
             
                 <a href="../binaryclass/titanic_rf.html">
             
                     
-                        <b>6.6.</b>
+                        <b>6.7.</b>
                     
-                    Kaggle Titanic
+                    Kaggle Titanic tutorial
             
                 </a>
             
@@ -1135,7 +1156,7 @@
 
     
         
-        <li class="header">Part VII - Multiclass classification tutorials</li>
+        <li class="header">Part VII - Multiclass classification</li>
         
         
     
@@ -1146,7 +1167,7 @@
                     
                         <b>7.1.</b>
                     
-                    News20 Multiclass
+                    News20 Multiclass tutorial
             
                 </a>
             
@@ -1257,7 +1278,7 @@
                     
                         <b>7.2.</b>
                     
-                    Iris
+                    Iris tutorial
             
                 </a>
             
@@ -1319,18 +1340,33 @@
 
     
         
-        <li class="header">Part VIII - Regression tutorials</li>
+        <li class="header">Part VIII - Regression</li>
         
         
     
-        <li class="chapter " data-level="8.1" 
data-path="../regression/e2006.html">
+        <li class="chapter " data-level="8.1" 
data-path="../regression/general.html">
             
-                <a href="../regression/e2006.html">
+                <a href="../regression/general.html">
             
                     
                         <b>8.1.</b>
                     
-                    E2006-tfidf regression
+                    Regression
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="8.2" 
data-path="../regression/e2006.html">
+            
+                <a href="../regression/e2006.html">
+            
+                    
+                        <b>8.2.</b>
+                    
+                    E2006-tfidf regression tutorial
             
                 </a>
             
@@ -1339,12 +1375,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="8.1.1" 
data-path="../regression/e2006_dataset.html">
+        <li class="chapter " data-level="8.2.1" 
data-path="../regression/e2006_dataset.html">
             
                 <a href="../regression/e2006_dataset.html">
             
                     
-                        <b>8.1.1.</b>
+                        <b>8.2.1.</b>
                     
                     Data preparation
             
@@ -1354,12 +1390,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.1.2" 
data-path="../regression/e2006_arow.html">
+        <li class="chapter " data-level="8.2.2" 
data-path="../regression/e2006_arow.html">
             
                 <a href="../regression/e2006_arow.html">
             
                     
-                        <b>8.1.2.</b>
+                        <b>8.2.2.</b>
                     
                     Passive Aggressive, AROW
             
@@ -1374,14 +1410,14 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2" 
data-path="../regression/kddcup12tr2.html">
+        <li class="chapter " data-level="8.3" 
data-path="../regression/kddcup12tr2.html">
             
                 <a href="../regression/kddcup12tr2.html">
             
                     
-                        <b>8.2.</b>
+                        <b>8.3.</b>
                     
-                    KDDCup 2012 track 2 CTR prediction
+                    KDDCup 2012 track 2 CTR prediction tutorial
             
                 </a>
             
@@ -1390,12 +1426,12 @@
             <ul class="articles">
                 
     
-        <li class="chapter " data-level="8.2.1" 
data-path="../regression/kddcup12tr2_dataset.html">
+        <li class="chapter " data-level="8.3.1" 
data-path="../regression/kddcup12tr2_dataset.html">
             
                 <a href="../regression/kddcup12tr2_dataset.html">
             
                     
-                        <b>8.2.1.</b>
+                        <b>8.3.1.</b>
                     
                     Data preparation
             
@@ -1405,12 +1441,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.2" 
data-path="../regression/kddcup12tr2_lr.html">
+        <li class="chapter " data-level="8.3.2" 
data-path="../regression/kddcup12tr2_lr.html">
             
                 <a href="../regression/kddcup12tr2_lr.html">
             
                     
-                        <b>8.2.2.</b>
+                        <b>8.3.2.</b>
                     
                     Logistic Regression, Passive Aggressive
             
@@ -1420,12 +1456,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.3" 
data-path="../regression/kddcup12tr2_lr_amplify.html">
+        <li class="chapter " data-level="8.3.3" 
data-path="../regression/kddcup12tr2_lr_amplify.html">
             
                 <a href="../regression/kddcup12tr2_lr_amplify.html">
             
                     
-                        <b>8.2.3.</b>
+                        <b>8.3.3.</b>
                     
                     Logistic Regression with Amplifier
             
@@ -1435,12 +1471,12 @@
             
         </li>
     
-        <li class="chapter " data-level="8.2.4" 
data-path="../regression/kddcup12tr2_adagrad.html">
+        <li class="chapter " data-level="8.3.4" 
data-path="../regression/kddcup12tr2_adagrad.html">
             
                 <a href="../regression/kddcup12tr2_adagrad.html">
             
                     
-                        <b>8.2.4.</b>
+                        <b>8.3.4.</b>
                     
                     AdaGrad, AdaDelta
             
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