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2025-07-14 11:34:38 +08:00

29 lines
898 B
Matlab

function DU = updateDictionary(Dict, Sign)
%UPDATEDICTIONARY Update the dictionary with the new signature (place)
% DU = updateDictionary(Dict, Sign)
%
% DU = dictionary updated
% dictionary = [wordId1 SignRefIds...; wordId2 SignRefIds...; ...]
% sign = [signId WordRefIds...]
signId = Sign(1);
Sign = Sign(Sign~=0);
for i=2:length(Sign)
indexWord = [];
if isempty(Dict) ~= 1
indexWord = find(Dict(:,1) == Sign(i),1);
end
if isempty(indexWord) == 1
Dict(size(Dict,1)+1,1) = Sign(i); %Word id
Dict(size(Dict,1),2) = signId; %Signature id ref
else
ii = 1:length(Dict(indexWord,1:end));
indexesZero = ii(Dict(indexWord,1:end) == 0);
if isempty(indexesZero)
Dict(indexWord, size(Dict,2)+1) = signId;
else
Dict(indexWord, indexesZero(1)) = signId;
end
end
end
DU = Dict;