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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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