FIX: remove .m~ files from repo
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.gitignore
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@ -3,6 +3,9 @@ bin/
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out/
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resources/
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# matlab
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*.m~
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# hpc related
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# eclipse
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@ -1,18 +0,0 @@
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function D = distXY(X, Y)
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%distXY Calculate an m x n Euclidean distance matrix 𝐷 of X and Y
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%
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% Calculate an m x n Euclidean distance matrix 𝐷 between two sets points 𝑋 and 𝑌 of 𝑚 and 𝑛 points respectively
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% X : [m x d] Corpus data points (d dimensions)
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% Y : [n x d] Query data poinsts (d dimensions)
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% D : [m x n] Distance matrix where D(i,j) the distance of X(i) and Y(j)
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[m d1] = size(X);
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[n d2] = size(Y);
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if d1 == d2
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d = d1;
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else
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error('Corpus(X) and Query(Y) data points have to have the same dimensions');
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end
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%D = (X.*X) * ones(d,1)*ones(1,n) -2 * X*Y.' + ones(m,1)*ones(1,d) * (Y.*Y).';
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D = sum(X.^2, 2) - 2 * X*Y.' + sum(Y.^2, 2).'
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end
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@ -1,29 +0,0 @@
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function [I, D] = kNN(X, Y, k)
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%kNN return the k-nearest neighbors Of Y into dataset X
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%
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% Outputs:
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% I : [n x k] The indexes of X where the nearest neighbors of Y lies
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% D : [n x k] The distances of each neighbor
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%
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% Inputs:
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% X : [m x d] Corpus data points (d dimensions)
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% Y : [n x d] Query data points (d dimensions)
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% k : [scalar] The number of neighbors
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disMat = distXY(X, Y);
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[m, n] = size(disMat);
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II = repmat([1:k].', 1, n); % init the min algorithm
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DD = disMat(1:k,:);
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for i = k+1:m
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for j = 1:n
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[c, ci] = tail(DD); % calculate candidate and canditate index
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if disMat(i,j) < c(j)
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DD()
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end
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end
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end
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I = II.';
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D = DD.';
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end
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@ -1,14 +0,0 @@
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function [M, I] = maxIdx(Vec)
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%tail Calculate the max,index pair of each Vec(:)
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%
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n = length(Vec);
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I = 0;
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M = -1;
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for j = 1:n
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if M < Vec(j)
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M(j) = Mat(i,j);
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I(j) = i;
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end
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end
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end
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