Re: [Jboost-users] Question regarding .train.boosting.info output

[Viren J. <vi...@MI...>]

Ah ok, I misinterpreted the documentation. Thanks very much for the  
prompt reply!

Best,
Viren

On Jul 7, 2008, at 1:07 PM, Aaron Arvey wrote:

A simple misunderstanding.  I round the score/margin to 15.

The margin is 15, the score is -15.  The score has the same sign as  
the label (-1), thus the margin is positive (correctly labeled).

More documentation on the format can be found at http://jboost.sourceforge.net/doc.html#boost_format 
.

Let me know if this clears the problem.

Aaron


On Mon, 7 Jul 2008, Viren Jain wrote:

> Hello, I have trained a classifier that reaches 0 error on the
> training set (according to the .info file) and have asked jboost to
> produce .train.boosting.info output on the last iteration. However,
> when I look at this logfile, my understanding of the format seems to
> suggest that this logfile indicates many examples were incorrect. For
> example, does
>
> 280: 15.07121: -15.072121: 0.000: 0.000: -1:
>
> indicate an incorrect answer (should have been -1, actual was
> 15.07121, so margin was -15.072121?)
>
> Are there any known issues in this output file?
>
> Thanks.
>
>
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