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The following page has been changed by udanax:
http://wiki.apache.org/lucene-hadoop/NewsPersonalizationSystem

------------------------------------------------------------------------------
                                                  Request  Reply   Notify
                                                     ↓       |       ↓
                            +--------------------------------+--------------+
-                           |                    Personalization Servers    |
+                           |                    Personalization Servers    +-+
-                           +----------------------------------------+------+
+                           +----------------------------------------+------+ |
-                               ↑                    ↑               |
+                               ↑                    ↑               |      
  |
-                      Reads user profile       Read Stats     Update Stats 
+                      Reads user profile       Read Stats     Update Stats   |
-                               |                    |               ↓
+                               |                    |               ↓        
|
-     +-------------------------+-----+    +---------+----------------------+
+     +-------------------------+-----+    +---------+----------------------+ |
-     |       Hbase:UserTable         |    |        Hbase:StoryTable        |
+     |       Hbase:UserTable         |    |        Hbase:StoryTable        | |
-     | (user clusters, click history |    | (Cluster + covisitation count) |
+     | (user clusters, click history |    | (Cluster + covisitation count) | |
-     +-------------------------------+    +--------------------------------+
+     +-------------------------------+    +--------------------------------+ |
-                               ↑
+                               ↑                                             
|
- +-----------------------------+-------------------------------------------+
+ +-----------------------------+-------------------------------------------+ |
- |                    Hadoop:User clustering MapReduce                     |
+ |                    Hadoop:User clustering MapReduce                     
|←+
  +-------------------------------------------------------------------------+
  }}}
  ----

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