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hour discrimination training set #19

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gngdb opened this issue Nov 11, 2014 · 5 comments
Open

hour discrimination training set #19

gngdb opened this issue Nov 11, 2014 · 5 comments
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@gngdb
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gngdb commented Nov 11, 2014

Started this method of the data assembler to implement a multiclass training set. Haven't actually finished it yet. It does not work. Y matrix needs to be constructed from the hour indexes. Won't fix this at the moment as am working on the test-train discrimination training set first.

@gngdb gngdb added the wontfix label Nov 11, 2014
@scottclowe
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What are you doing for test/ train dataset similarity measure?

Could it not be simply done with variance feature selection? We want anova test to say test and training are not significantly different?

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----- Reply message -----
From: "Gavin Gray" [email protected]
To: "Neuroglycerin/hail-seizure" [email protected]
Subject: [hail-seizure] hour discrimination training set (#19)
Date: Tue, Nov 11, 2014 13:22

Started this method of the data assembler to implement a multiclass training set. Haven't actually finished it yet. It does not work. Y matrix needs to be constructed from the hour indexes. Won't fix this at the moment as am working on the test-train discrimination training set first.


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#19

@gngdb
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gngdb commented Nov 11, 2014

I'm using the classifier itself to decide whether the test/train are similar. Seems like if the training and test are not sepearable to the SVC but preictal/interictal are separable it is more likely to be able to generalise better.

ANOVA test wouldn't reflect the SVM model. Is ANOVA a multivariate model?

Comparing the first and second moments of a multivariate Gaussian would probably be fine. Could just use the KL divergence.

@gngdb
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gngdb commented Nov 11, 2014

Although, a classifier could still work perfectly well if preictal/interictal are separable and training/test are separable as well. Think I'll go for the multivariate Gaussian for now.

@fmaguire
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MANOVA is what you are looking for.

@scottclowe
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Yes

On Tue, Nov 11, 2014 at 9:55 PM, Finlay Maguire [email protected]
wrote:

MANOVA http://en.wikipedia.org/wiki/Multivariate_analysis_of_variance
is what you are looking for I think


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#19 (comment)
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