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open source pkg v1

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This commit is contained in:
Vijay Yadev
2020-08-04 19:12:31 -04:00
parent bef213dba9
commit c389fc2c47
3708 changed files with 1624220 additions and 1 deletions
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pkg/OpenFace/model_training/CCNF/CCRF/lib/CalculateSimilarities.m Normal file
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function [ Similarities, PrecalcQ2s, PrecalcQ2sFlat, PrecalcYqDs ] = CalculateSimilarities( n_sequences, x, similarityFNs, y)
%CALCULATESIMILARITIES Summary of this function goes here
% Detailed explanation goes here
K = numel(similarityFNs);
%calculate similarity measures for each of the sequences
Similarities = cell(n_sequences, 1);
PrecalcQ2s = cell(n_sequences,1);
PrecalcQ2sFlat = cell(n_sequences,1);
PrecalcYqDs = zeros(n_sequences, K);
if(iscell(x))
for q = 1 : n_sequences
xq = x{q};
n = size(xq, 1);
Similarities{q} = zeros([n, n, K]);
PrecalcQ2s{q} = cell(K,1);
PrecalcQ2sFlat{q} = zeros((n*(n+1))/2,K);
% go over all of the similarity metrics and construct the
% similarity matrices
if(nargin > 3)
yq = y{q};
end
for k=1:K
Similarities{q}(:,:,k) = similarityFNs{k}(xq);
S = Similarities{q}(:,:,k);
D = diag(sum(S));
% PrecalcQ2s{q}(:,:,k) = D - S;
PrecalcQ2s{q}{k} = D - S;
B = D - S;
% PrecalcQ2sFlat{q}{k} = PrecalcQ2s{q}{k}(logical(tril(ones(size(S)))));
PrecalcQ2sFlat{q}(:,k) = B(logical(tril(ones(size(S)))));
if(nargin > 3)
PrecalcYqDs(q,k) = -yq'*B*yq;
end
end
end
else
sample_length = size(x,2)/n_sequences;
for q = 1 : n_sequences
beg_ind = (q-1)*sample_length + 1;
end_ind = q*sample_length;
% don't take the bias term
xq = x(2:end, beg_ind:end_ind);
Similarities{q} = zeros([sample_length, sample_length, K]);
PrecalcQ2s{q} = cell(K,1);
PrecalcQ2sFlat{q} = zeros((sample_length*(sample_length+1))/2,K);
% go over all of the similarity metrics and construct the
% similarity matrices
if(nargin > 3)
yq = y(:,q);
end
for k=1:K
Similarities{q}(:,:,k) = similarityFNs{k}(xq);
S = Similarities{q}(:,:,k);
D = diag(sum(S));
% PrecalcQ2s{q}(:,:,k) = D - S;
PrecalcQ2s{q}{k} = D - S;
B = D - S;
% PrecalcQ2sFlat{q}{k} = PrecalcQ2s{q}{k}(logical(tril(ones(size(S)))));
PrecalcQ2sFlat{q}(:,k) = B(logical(tril(ones(size(S)))));
if(nargin > 3)
PrecalcYqDs(q,k) = -yq'*B*yq;
end
end
end
end
end