Thank you very much Yogesh :)
On Tue, Aug 5, 2014 at 4:42 PM, Yogesh Karpate <[email protected]>
wrote:
> Actually this question will be paid very less attention here because its
> ML forum . But anyways, you can try to
> vectorize your code using numpy or can use the same code snippet infused
> with
> numba (JIT Compiler). See this
> http://nbviewer.ipython.org/github/aterrel/HPCPythonSC2012/blob/master/02_Speeding_Python.ipynb
> Hope this helps!
>
>
> On Tue, Aug 5, 2014 at 4:32 PM, Bao Thien <[email protected]> wrote:
>
>> 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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>>
>
>
> --
> Warm Regards
> Yogesh Karpate
>
>
> ------------------------------------------------------------------------------
> Infragistics Professional
> Build stunning WinForms apps today!
> Reboot your WinForms applications with our WinForms controls.
> Build a bridge from your legacy apps to the future.
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>
--
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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Build stunning WinForms apps today!
Reboot your WinForms applications with our WinForms controls.
Build a bridge from your legacy apps to the future.
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