Repository: incubator-hivemall-site
Updated Branches:
  refs/heads/asf-site ce452ddb9 -> 0e287d3d4


http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/tips/rowid.html
----------------------------------------------------------------------
diff --git a/userguide/tips/rowid.html b/userguide/tips/rowid.html
index 8dde371..1a54ecb 100644
--- a/userguide/tips/rowid.html
+++ b/userguide/tips/rowid.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2377,7 +2413,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Adding rowid for each 
row","level":"1.5.1","depth":2,"next":{"title":"Hadoop tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]},"previous":{"title":"General
 Hive/Hadoop 
Tips","level":"1.5","depth":1,"path":"tips/general_tips.md","ref":"tips/general_tips.md","articles":[{"title":"Adding
 rowid for each 
row","level":"1.5.1","depth":2,"path":"tips/rowid.md","ref":"tips/rowid.md","articles":[]},{"title":"Hadoop
 tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.c
 
ss","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://git
 
hub.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"tips/rowid.md","mtime":"2018-08-29T08:55:00.297Z","type":"markdown"},"gitbook":{"version":"3.2.3"
 ,"time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Adding rowid for each 
row","level":"1.5.1","depth":2,"next":{"title":"Hadoop tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]},"previous":{"title":"General
 Hive/Hadoop 
Tips","level":"1.5","depth":1,"path":"tips/general_tips.md","ref":"tips/general_tips.md","articles":[{"title":"Adding
 rowid for each 
row","level":"1.5.1","depth":2,"path":"tips/rowid.md","ref":"tips/rowid.md","articles":[]},{"title":"Hadoop
 tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.c
 
ss","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://git
 
hub.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"tips/rowid.md","mtime":"2017-11-02T05:41:05.000Z","type":"markdown"},"gitbook":{"version":"3.2.3"
 ,"time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/tips/rt_prediction.html
----------------------------------------------------------------------
diff --git a/userguide/tips/rt_prediction.html 
b/userguide/tips/rt_prediction.html
index 2fa25b2..407fd7b 100644
--- a/userguide/tips/rt_prediction.html
+++ b/userguide/tips/rt_prediction.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2525,7 +2561,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Real-time prediction on 
RDBMS","level":"1.4.3","depth":2,"next":{"title":"Ensemble learning for stable 
prediction","level":"1.4.4","depth":2,"path":"tips/ensemble_learning.md","ref":"tips/ensemble_learning.md","articles":[]},"previous":{"title":"Use
 rand_amplify() to better prediction 
results","level":"1.4.2","depth":2,"path":"tips/rand_amplify.md","ref":"tips/rand_amplify.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url
 
":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/eboo
 
k.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"tips/rt_prediction.md","mtime":"2018-09-07T06:02:35.264Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Real-time prediction on 
RDBMS","level":"1.4.3","depth":2,"next":{"title":"Ensemble learning for stable 
prediction","level":"1.4.4","depth":2,"path":"tips/ensemble_learning.md","ref":"tips/ensemble_learning.md","articles":[]},"previous":{"title":"Use
 rand_amplify() to better prediction 
results","level":"1.4.2","depth":2,"path":"tips/rand_amplify.md","ref":"tips/rand_amplify.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url
 
":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/eboo
 
k.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"tips/rt_prediction.md","mtime":"2018-11-02T12:52:57.604Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/asterisk.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/asterisk.html 
b/userguide/troubleshooting/asterisk.html
index 696859e..49eb8af 100644
--- a/userguide/troubleshooting/asterisk.html
+++ b/userguide/troubleshooting/asterisk.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2338,7 +2374,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Asterisk argument for 
UDTF does not work","level":"1.6.3","depth":2,"next":{"title":"The number of 
mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},"previous":{"title":"SemanticException
 generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize
 
":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/websi
 
te.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/asterisk.md","mtime":"2018-08-29T08:55:00.298Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Asterisk argument for 
UDTF does not work","level":"1.6.3","depth":2,"next":{"title":"The number of 
mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},"previous":{"title":"SemanticException
 generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize
 
":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/websi
 
te.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/asterisk.md","mtime":"2017-11-02T05:41:05.000Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/index.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/index.html 
b/userguide/troubleshooting/index.html
index 75d6848..fc1e66e 100644
--- a/userguide/troubleshooting/index.html
+++ b/userguide/troubleshooting/index.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2336,7 +2372,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            
gitbook.page.hasChanged({"page":{"title":"Troubleshooting","level":"1.6","depth":1,"next":{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},"previous":{"title":"Hadoop
 tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},";
 
splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true}
 ,"anchorjs":{"selector":"h1,h2,h3,*:not(.callout) > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/README.md","mtime":"2018-08-29T08:55:00.297Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            
gitbook.page.hasChanged({"page":{"title":"Troubleshooting","level":"1.6","depth":1,"next":{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},"previous":{"title":"Hadoop
 tuning for 
Hivemall","level":"1.5.2","depth":2,"path":"tips/hadoop_tuning.md","ref":"tips/hadoop_tuning.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},";
 
splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true}
 ,"anchorjs":{"selector":"h1,h2,h3,*:not(.callout) > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/README.md","mtime":"2017-11-02T05:41:05.000Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/mapjoin_classcastex.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/mapjoin_classcastex.html 
b/userguide/troubleshooting/mapjoin_classcastex.html
index 0f17489..22050ed 100644
--- a/userguide/troubleshooting/mapjoin_classcastex.html
+++ b/userguide/troubleshooting/mapjoin_classcastex.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2341,7 +2377,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"Map-side join causes 
ClassCastException on Tez","level":"1.6.5","depth":2,"next":{"title":"List of 
Generic Hivemall 
Functions","level":"2.1","depth":1,"path":"misc/generic_funcs.md","ref":"misc/generic_funcs.md","articles":[]},"previous":{"title":"The
 number of mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mind
 
epth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"s
 
tyles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/mapjoin_classcastex.md","mtime":"2018-09-07T06:02:35.264Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"Map-side join causes 
ClassCastException on Tez","level":"1.6.5","depth":2,"next":{"title":"List of 
Generic Hivemall 
Functions","level":"2.1","depth":1,"path":"misc/generic_funcs.md","ref":"misc/generic_funcs.md","articles":[]},"previous":{"title":"The
 number of mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mind
 
epth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"s
 
tyles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/mapjoin_classcastex.md","mtime":"2018-11-02T12:52:57.605Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/mapjoin_task_error.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/mapjoin_task_error.html 
b/userguide/troubleshooting/mapjoin_task_error.html
index 5167908..9a92d28 100644
--- a/userguide/troubleshooting/mapjoin_task_error.html
+++ b/userguide/troubleshooting/mapjoin_task_error.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2340,7 +2376,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"SemanticException 
generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"next":{"title":"Asterisk argument for UDTF 
does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","articles":[]},"previous":{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth
 
":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"style
 
s/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/mapjoin_task_error.md","mtime":"2018-08-29T08:55:00.298Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"SemanticException 
generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"next":{"title":"Asterisk argument for UDTF 
does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","articles":[]},"previous":{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth
 
":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"style
 
s/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/mapjoin_task_error.md","mtime":"2017-11-02T05:41:05.000Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/num_mappers.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/num_mappers.html 
b/userguide/troubleshooting/num_mappers.html
index 7f7ffc5..65a2875 100644
--- a/userguide/troubleshooting/num_mappers.html
+++ b/userguide/troubleshooting/num_mappers.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2348,7 +2384,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"The number of mappers is 
less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"next":{"title":"Map-side join causes 
ClassCastException on 
Tez","level":"1.6.5","depth":2,"path":"troubleshooting/mapjoin_classcastex.md","ref":"troubleshooting/mapjoin_classcastex.md","articles":[]},"previous":{"title":"Asterisk
 argument for UDTF does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h
 
2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css
 
","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/num_mappers.md","mtime":"2018-08-29T08:55:00.298Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"The number of mappers is 
less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"next":{"title":"Map-side join causes 
ClassCastException on 
Tez","level":"1.6.5","depth":2,"path":"troubleshooting/mapjoin_classcastex.md","ref":"troubleshooting/mapjoin_classcastex.md","articles":[]},"previous":{"title":"Asterisk
 argument for UDTF does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","articles":[]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h
 
2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"splitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css
 
","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},"anchorjs":{"selector":"h1,h2,h3,*:not(.callout)
 > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/num_mappers.md","mtime":"2017-11-02T05:41:05.000Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

http://git-wip-us.apache.org/repos/asf/incubator-hivemall-site/blob/0e287d3d/userguide/troubleshooting/oom.html
----------------------------------------------------------------------
diff --git a/userguide/troubleshooting/oom.html 
b/userguide/troubleshooting/oom.html
index ab76b5b..cbf20ec 100644
--- a/userguide/troubleshooting/oom.html
+++ b/userguide/troubleshooting/oom.html
@@ -715,14 +715,45 @@
             
         </li>
     
-        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/tfidf.html">
+        <li class="chapter " data-level="3.7" 
data-path="../ft_engineering/term_vector.html">
             
-                <a href="../ft_engineering/tfidf.html">
+                <a href="../ft_engineering/term_vector.html">
             
                     
                         <b>3.7.</b>
                     
-                    TF-IDF Calculation
+                    Term Vector Model
+            
+                </a>
+            
+
+            
+            <ul class="articles">
+                
+    
+        <li class="chapter " data-level="3.7.1" 
data-path="../ft_engineering/tfidf.html">
+            
+                <a href="../ft_engineering/tfidf.html">
+            
+                    
+                        <b>3.7.1.</b>
+                    
+                    TF-IDF Term Weighting
+            
+                </a>
+            
+
+            
+        </li>
+    
+        <li class="chapter " data-level="3.7.2" 
data-path="../ft_engineering/bm25.html">
+            
+                <a href="../ft_engineering/bm25.html">
+            
+                    
+                        <b>3.7.2.</b>
+                    
+                    Okapi BM25 Term Weighting
             
                 </a>
             
@@ -731,6 +762,11 @@
         </li>
     
 
+            </ul>
+            
+        </li>
+    
+
     
         
         <li class="header">Part IV - Evaluation</li>
@@ -2346,7 +2382,7 @@ Apache Hivemall is an effort undergoing incubation at The 
Apache Software Founda
     <script>
         var gitbook = gitbook || [];
         gitbook.push(function() {
-            gitbook.page.hasChanged({"page":{"title":"OutOfMemoryError in 
training","level":"1.6.1","depth":2,"next":{"title":"SemanticException generate 
map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},"previous":{"title":"Troubleshooting","level":"1.6","depth":1,"path":"troubleshooting/README.md","ref":"troubleshooting/README.md","articles":[{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},{"title":"SemanticException
 generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},{"title":"Asterisk
 argument for UDTF does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","article
 s":[]},{"title":"The number of mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},{"title":"Map-side
 join causes ClassCastException on 
Tez","level":"1.6.5","depth":2,"path":"troubleshooting/mapjoin_classcastex.md","ref":"troubleshooting/mapjoin_classcastex.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"s
 
plitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},
 "anchorjs":{"selector":"h1,h2,h3,*:not(.callout) > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/oom.md","mtime":"2018-09-07T06:02:35.264Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-09-07T06:06:37.693Z"},"basePath":"..","book":{"language":""}});
+            gitbook.page.hasChanged({"page":{"title":"OutOfMemoryError in 
training","level":"1.6.1","depth":2,"next":{"title":"SemanticException generate 
map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},"previous":{"title":"Troubleshooting","level":"1.6","depth":1,"path":"troubleshooting/README.md","ref":"troubleshooting/README.md","articles":[{"title":"OutOfMemoryError
 in 
training","level":"1.6.1","depth":2,"path":"troubleshooting/oom.md","ref":"troubleshooting/oom.md","articles":[]},{"title":"SemanticException
 generate map join task error: Cannot serialize 
object","level":"1.6.2","depth":2,"path":"troubleshooting/mapjoin_task_error.md","ref":"troubleshooting/mapjoin_task_error.md","articles":[]},{"title":"Asterisk
 argument for UDTF does not 
work","level":"1.6.3","depth":2,"path":"troubleshooting/asterisk.md","ref":"troubleshooting/asterisk.md","article
 s":[]},{"title":"The number of mappers is less than input splits in Hadoop 
2.x","level":"1.6.4","depth":2,"path":"troubleshooting/num_mappers.md","ref":"troubleshooting/num_mappers.md","articles":[]},{"title":"Map-side
 join causes ClassCastException on 
Tez","level":"1.6.5","depth":2,"path":"troubleshooting/mapjoin_classcastex.md","ref":"troubleshooting/mapjoin_classcastex.md","articles":[]}]},"dir":"ltr"},"config":{"plugins":["theme-api","edit-link","github","splitter","sitemap","etoc","callouts","toggle-chapters","anchorjs","codeblock-filename","expandable-chapters","multipart","codeblock-filename","katex","emphasize","localized-footer"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"emphasize":{},"callouts":{},"etoc":{"h2lb":3,"header":1,"maxdepth":3,"mindepth":1,"notoc":true},"github":{"url":"https://github.com/apache/incubator-hivemall/"},"s
 
plitter":{},"search":{},"downloadpdf":{"base":"https://github.com/apache/incubator-hivemall/docs/gitbook","label":"PDF","multilingual":false},"multipart":{},"localized-footer":{"filename":"FOOTER.md","hline":"true"},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"katex":{},"fontsettings":{"theme":"white","family":"sans","size":2,"font":"sans"},"highlight":{},"codeblock-filename":{},"sitemap":{"hostname":"https://hivemall.incubator.apache.org/"},"theme-api":{"languages":[],"split":false,"theme":"dark"},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"edit-link":{"label":"Edit","base":"https://github.com/apache/incubator-hivemall/tree/master/docs/gitbook"},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":true},
 "anchorjs":{"selector":"h1,h2,h3,*:not(.callout) > 
h4,h5"},"toggle-chapters":{},"expandable-chapters":{}},"theme":"default","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Hivemall
 User Manual","links":{"sidebar":{"<i class=\"fa fa-home\"></i> 
Home":"https://hivemall.incubator.apache.org/"}},"gitbook":"3.x.x","description":"User
 Manual for Apache 
Hivemall"},"file":{"path":"troubleshooting/oom.md","mtime":"2018-11-02T12:52:57.605Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2018-11-06T02:51:07.793Z"},"basePath":"..","book":{"language":""}});
         });
     </script>
 </div>

Reply via email to