PDSSC/myKernel.m at master · yiweilu3/PDSSC · GitHub

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function [ out ] = myKernel(x,lambda)
if lambda == 2015
    out = x * x';
else if lambda == 2016
    out = x * x';
    out = out .^ 2;
    else if lambda == 2017

        out = x*x';
        out = out .^4;
        else if lambda == 2018

        out = 1+x*x';
        out = out .^2;
        else if lambda == 2019

        out = 1+x*x';
        out = out .^4;


        else if lambda==2020
      m=size(x,1);
      out=zeros(m);
      for i=1:m
          for j=i+1:m
      out(i,j)=x(i,:)*x(j,:)'/(norm(x(i,:))*norm(x(j,:))+eps);
      out(j,i)=out(i,j);
          end
      end
        else
            tmp=EuDist2(x,[],0);
            delta=lambda*max(tmp(:));
            out = exp(-tmp./delta);
            end
        end
    end
        end
    end
end
     maximum=max(out(:));
     out = out ./maximum;

end