[Eeglablist] A theoretical problem regarding Common Spatial Patterns

[Makoto Miyakoshi]

Dear Reza,

Ok CSP stands for 'Common Spatial Pattern'. I've never used it but it sound
interesting.
https://en.wikipedia.org/wiki/Common_spatial_pattern

> Is this done just because of what comes next, or is there any other
description for it? I mean are there any explanations for what a composite
covariance matrix shows?

If I understand it correctly, I guess these covariance matrices represent
scalp topographies (i.e. spatial filters) of the additive subcomponents.

Makoto


On Mon, May 9, 2016 at 8:08 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
wrote:

> Dear Reza,
>
> What is CSP? Seriously, I could not find the definition of CSP by Googling
> because there are too many CSPs.
>
> Makoto
>
>
>
> On Tue, May 3, 2016 at 10:04 PM, Seyed Mohammad Reza Shahshahni <
> smr.shahshahani at gmail.com> wrote:
>
>> Dear all members
>>
>> I have a non-EEGLAB issue, a theoretical one.
>>
>> Since the very first paper regarding CSP, everybody has mentioned almost
>> the same theoretical description of the computation process of CSP's. But I
>> have a question I have not been able to get answers in none of those papers.
>>
>> In the process it said that we should make a composite covariance matrix
>> out of the two covariance matrices related to two different classes.
>>
>> Is this done just because of what comes next, or is there any other
>> description for it? I mean are there any explanations for what a composite
>> covariance matrix shows?
>>
>> Thanks.
>> Reza M. Shahshahani
>>
>>
>>
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>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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