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Multivariate Regression via Stiefel Constraints
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author : gb
ostart=[]; possible start output features for optimization
qstart=[]; possible start input features for optimization
sstart=[]; possible start weighting
w0 initial guess: ostart * sstart *qstart'
Final model :
o=[];
s=[];
q=[];
w=[];
Hyper params :
gamma = 0; regularization parameter
k=5; allowed components
conv_eps=1e-3; optimization criteria
Example:
Mrs vs KPLS
t=toyreg({'l=500','o=3','n=4'});
d=gen(t);
[r,a]=train( group({ mrs('k=2'), kpls('nroflatent=2')}),get(d,1:400));
test(a,get(d,401:500),'quadratic_loss')
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Reference : Multivariate Regression via Stiefel Constraints |
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Author : Gökhan H. BakIr , Arthur Gretton , Bernhard Schölkopf |