Re: [Poesia-devel] [Fwd: Poesia information request]

[Riadh E. <ri...@me...>]

Hi David,

The decisor is a Poesia component that I heavily simplified in the new=20
Monitor implementation. I implemented a little decison mechanism (DM) on=20
the socores that is:
- if a text score is high
or
- if more than eight images score more than 75
I block the web page. This is implemented in PageHandler class:

http://poesia.cvs.sourceforge.net/poesia/PoesiaSoft/Java/org/poesia/monit=
or/PageHandler.java?revision=3D1.11&view=3Dmarkup

Even if it is hard-coded, you can overwrite this file to implement a=20
Bayesian decision. We can also define a generic decision API that is=20
implemented by different classes and select the DM at runtime... In the=20
past, the DM was exported in an external filter and the scores were sent=20
in a pipe to the DM, but I think that it is simpler to implement  it in=20
the Monitor. You can have a look at the old DM sources in

http://poesia.cvs.sourceforge.net/poesia/PoesiaSoft/Decisor/

I hope these information will help you.

Best regards,

Riadh.


Daoudi Mohamed a =E9crit :
>
>
> -----------------------------------------------------------------------=
-
>
> Sujet:
> Poesia information request
> Exp=E9diteur:
> "wepalco" <we...@us...>
> Date:
> Mon, 19 Jun 2006 12:35:33 -0700
> Destinataire:
> sd...@us...
>
> Destinataire:
> sd...@us...
> Copie =E0:
> we...@us...
>
>
> Message body follows:
>
> Hi Mr Mohamed
>
> My name is David Hennessy. I was in contact with you some
> months ago, thanking you for the work you have all completed
> on Poesia. As previously stated we are developing open
> source parental control software. Your project and
> documentation has been extremely valuable to us. We are a
> small group of people looking to achieve the same goal as
> poesia. We hope to have a beta release before the end of
> august and I hope that we can contribute to filtration
> techniques and free software for End users across the EU.
>
> We have come across the following hitch. We wish to
> implement a decisor into a java-based proxy. We denote the
> decisor as follows:
> 1.1.1          Decisor
> The Decisor will use an algorithm according to the Bayesian
> Decision Theory to calculate the probability that the
> content is safe. Weka, an open source library for machine
> learning algorithms, will be used. This library can be found
> at http://sourceforge.net/projects/weka.
>
> We understand the concept and are confident in the
> development. We do  not understand how to interpret the
> scores. Your scoring system seemed to  produce excellent
> results and we would hope to have similar. Do you have any
> documentation that might help us interpret the scores from
> the Poesia filters? We cannot think of anything short of
> debugging the poesia code to get an interpretation.
>
> Your help would be much appreciated on this .
>
> regards
>
> David Hennessy
>
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