sorry, A is also array of (size1, size2)
On Tue, Aug 5, 2014 at 4:28 PM, Bao Thien <[email protected]> wrote:
> Hi all scikit-learn users,
>
> Suppose that we have the code like:
>
>
> for i in np.arange(size1):
> for j in np.arange(size1):
> if j!=i:
> t = 0.
> for k in np.arange(size2):
> for l in np.arange(size2):
> t = t + np.sum(A[i,k]*A[j,l]*X2[C[i,k],C[j,l]])
>
> tmp = tmp + (X1[i,j] - t)*(X1[i,j] - t)
> return tmp
>
>
> where X1 is the array of (size1, size1) and similar to X2 (size2, size2)
> C is array of (size1, size2)
>
> I try to rewrite this code to reduce the computational time, but somehow
> it does not success.
>
> If anyone can help me, it would be very appreciated
>
> Thank in advance.
>
> T.B
>
>
--
Nguyen Thien Bao
NeuroInformatics Laboratory (NILab), Fondazione Bruno Kessler (FBK),
Trento, Italy
Centro Interdipartimentale Mente e Cervello (CIMeC), Universita degli Studi
di Trento, Italy
Surgical Planning Laboratory (SPL), Department of Radiology, BWH, Harvard
Medical School, USA
Email: bao at bwh.harvard.edu or tbnguyen at fbk.eu or ntbaovn at gmail.com
Fax: +39.0461.283.091
Cellphone: +1. 857.265.6408 (USA)
+39.345.293.1006 (Italy)
+84.996.352.452 (VietNam)
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