Impala Documentation

void Impala::Core::Training::Fisher::ApplyMapping ( Array::Array2dScalarReal64 * feats ) [inline]

Definition at line 286 of file Fisher.h.

References Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::CH(), Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::CW(), Impala::Core::Matrix::MatMul(), mMapped, mOffset, mProbabilities, mRotation, Impala::Core::Vector::SetPart(), Impala::Core::Array::SetVal(), Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::SetValue(), SigmoidMap(), Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::Value(), and Impala::Core::Array::W.

Referenced by CNormC(), Predict(), and Rank().

00287     {
00288         if(mMapped)
00289             delete mMapped;
00290         if(mProbabilities)
00291             delete mProbabilities;
00292 
00293 
00294         int W=feats->CW();
00295         int H=feats->CH();
00296 
00297         Matrix::Mat* Features = Matrix::MatCreate<Array::Array2dScalarReal64>(H,W+1);
00298 
00299         Array::SetVal(Features,1);
00300         Array::SetPart(Features,feats,0,0,W,H,0,0);
00301         
00302         Matrix::Mat* Rot = Matrix::MatCreate<Array::Array2dScalarReal64>(W+1,2);
00303         Array::SetPart(Rot,mRotation,0,0,2,W,0,0);
00304 
00305         Rot->SetValue(mOffset->Value(0,0),0,W);
00306         Rot->SetValue(mOffset->Value(1,0),1,W);
00307         
00308         mMapped = Matrix::MatMul(Features,Rot);
00309 
00310         mProbabilities = SigmoidMap(mMapped,1);
00311 
00312         delete Rot;
00313         delete Features;
00314     
00315     }

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