Re: Morphological Segmentation of Distinct Parts of Corn Kernels

Posted by Ignacio Arganda-Carreras-2 on Jun 26, 2015; 5:42pm
URL: http://imagej.273.s1.nabble.com/Morphological-Segmentation-of-Distinct-Parts-of-Corn-Kernels-tp5013319p5013327.html

Hello again, Caleb,

To see how informative each feature is, what you can do is to save your
traces (hopefully you have quite a few of each class) as an ARFF file
("Save Data" button) and load them into regular Weka. There you have
several options for feature selection (here you are a tutorial:
https://youtu.be/x5wa1w-BpRE).

This should tell you which features are more effective for your traning
samples so you can manually set them later in the Settings dialog.

One more thing, remember to check the "homogenize classes" options, it
always helps!

ignacio

On Fri, Jun 26, 2015 at 7:18 PM, Cmhulbert <[hidden email]> wrote:

> Thanks Ignacio,
>
> I did not realize that the random forest classifier worked that way, thanks
> for the explanation! Do you know if there would be any way for me to find
> out which training feature is the most informative? I only ask because the
> training and classifying takes quite a while between each iteration for me,
> and I was hoping to shorten the time it took by being a bit more picky with
> my feature selection.
>
> Best,
> Caleb
>
>
>
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Ignacio Arganda-Carreras, Ph.D.
Institut Jean-Pierre Bourgin, UMR1318 INRA-AgroParisTech
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