Re: [Jboost-users] Training and getting one level tree

[Aaron A. <aa...@cs...>]

Try doing something along the lines of

./jboost -b AdaBoost -numRounds 1000 -a -2 -S FILE_NAMES -ATreeType ADD_ALL

The output tree is going to be incomprehensible no matter what (620 labels 
is just too much to view visually).  You also probably have an outdated 
copy of atree2dot2ps.pl.  Grab the latest version from CVS and see if that 
works any better for you.  Zoom into the postscript file (png,gif zoom 
will be blury, postscript is vector graphics -- I think). Directions for 
CVS are at http://sourceforge.net/cvs/?group_id=195659.

Also, look at the FILE_NAME.info file and see what the error is.  This 
will give you a good idea as to the actuall progress of the booster.  If 
error is going down, then you know that something good is happening.  If 
error is staying very high, then there may be a bug or some other problem.

Aaron


On Mon, 28 Jan 2008, Rodrigo Pizarro wrote:

> Hi,
>
> i'm training jBoost with examples of the type (text, label). There is
> 620 different labels, 1720 training examples, and 1600 test examples.
> The problem is that the output tree has only one level with 620
> branches  and all the branches has negative values!!!
>
> JBoost deals correctly with text attributes? is there some bug? I
> tried with many different run parameters, but i still get similar
> wreid outputs. Please, any suggestion?
>
> Many Thanks beforehand!
>
> Rodrigo Pizarro G.
> Ingeniería Informática
> Universidad de Santiago de Chile
>
>
>
>
>
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