[tor-bugs] #2718 [Analysis]: Analyze Tor usage data for ways to automatically detect country-wide blockings

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Mon Jul 11 11:27:02 UTC 2011


#2718: Analyze Tor usage data for ways to automatically detect country-wide
blockings
----------------------+-----------------------------------------------------
 Reporter:  karsten   |          Owner:          
     Type:  task      |         Status:  assigned
 Priority:  normal    |      Milestone:          
Component:  Analysis  |        Version:          
 Keywords:            |         Parent:          
   Points:            |   Actualpoints:          
----------------------+-----------------------------------------------------

Comment(by karsten):

 Replying to [comment:8 karsten]:
 >  * Generate graphs using our own graphing engine.  We should use R and
 our own graphing engine to integrate the results more in our website.  I
 could imagine adding a checkbox "[ ] Show possible censorship events if
 available (BETA)" below the Source drop-down box on
 [https://metrics.torproject.org/users.html#direct-users].  The result
 would be that the graph doesn't only contain the estimated user number,
 but also a gray ribbon for the expected range and green/yellow points for
 upturns and downturns.  This would require disabling graph generation in
 `detector.py` and writing the expected user range per country and day to a
 file.  I hope my Python will be sufficient to do this.

 This is now implemented.  See, for example,
 [https://metrics.torproject.org/users.html?graph=direct-
 users&start=2010-01-01&end=2011-07-11&country=ir&events=on&dpi=72#direct-
 users this graph] for possible censorship events in Iran visualized as
 blue and red dots.  There are still some false positives, but overall the
 results are a great start.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2718#comment:9>
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