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From Andreas Hochsteger <>
Subject Re: [FYI] Apache Agora 1.2
Date Sun, 05 Oct 2003 12:12:16 GMT
Hi Stefano!

That's amazing!

I it is really funny to find yourself and your relationship to other 
community members or the community in common.

BTW, I've got one question:
If you press on "Start" the whole graph is moving.
Does this have a particular meaning (e.g. how the releationships change 
over time) or is it just eye fancy ;-)?


Stefano Mazzocchi wrote:

> It's with great pleasure that I announce the availability of Apache 
> Agora 1.2.
> Find it over at
> [NOTE: the location has changed since last version!]
> Unlike previous versions where dataclouds were generated by a script and 
> simply visualized by the application, with this new version, you can 
> play interactively not only with the graph, but changing it directly 
> from the application.
> In the above location you find an instance of agora running as an applet 
> (NOTE: you need Java 1.2 or above to see it!) and connecting to the 
> Apache mail archives hosted on Nagoya.
> Agora runs a preprocessing scripts over the entire eyebrowse archives 
> every Sunday morning (Pacific time) understanding which mbox files were 
> modified and reprocessing only those who need reprocessing.
> You can also download a distribution to run the visualizer and the 
> script locally on your own MBOX files. See the README.txt file included 
> in the distribution for more info on how to do this.
> The changes since version 1.1 are:
> o) Added the ability to zoom into the graphs by right-clicking
>    (or control-clicking for single-button mice) and show the labels
>    of the nodes closeby (they are drawn radially from the mouse
>    location to reduce label overlap).
> o) Moved the datacloud aggregation and processing into the application.
>    This allows a nicer usability of the tool so that users can create
>    dataclouds on the fly using preprocessed mailbox information
>    that can be published on the web.
> o) Added the ability to introduce time-based "link decay" which
>    simulates the fact that the importance of a reply decays with
>    time.
> o) Modified the mailbox processing scripts to produce message data
>    instead of dataclouds. Message data is fetched by the application
>    to produce the datacloud according to the selection of the processed
>    message archives that the user selects.
> o) Improved the overall prettyness of the drawing by extensive use of 
> Java2D
>    functions like rounded rectangles and transparency. The overall drawing
>    performance has been reduced, but there is the ability to turn off part
>    of the drawing to improve performance.
> o) Introduction of a "grouping" capabilities that draws circles around the
>    nodes that participated in a particular community. This allows better
>    identification of the 'node clusters' which belong to different 
> communities.
>                                      - o -
> Agora will be presented in detail at my "Virtual Community Dynamics" at 
> ApacheCON 2003
> As usual, feedback, is very welcome.
> Happy playing! :-)
> -- 
> Stefano.

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