function?[ZA]?=?JDA（XsXtYsYt0options）

%?Transfer?Feature?Learning?with?Joint?Distribution?Adaptation.??
%?M.?Long?J.?Wang?G.?Ding?J.?Sun?and?P.S.?Yu.
%?IEEE?International?Conference?on?Computer?Vision?（ICCV）?2013.

%?Contact:?Mingsheng?Long?（longmingsheng@gmail.com）

%?Load?algorithm?options
addpath（genpath（‘../liblinear/matlab‘））;

if?nargin?????error（‘Algorithm?parameters?should?be?set!‘）;
end
if?~isfield（options‘k‘）
????options.k?=?100;
end
if?~isfield（options‘lambda‘）
????options.lambda?=?0.1;
end
if?~isfield（options‘ker‘）
????options.ker?=?‘primal‘;
end
if?~isfield（options‘gamma‘）
????options.gamma?=?1.0;
end
if?~isfield（options‘data‘）
????options.data?=?‘default‘;
end
k?=?options.k;
lambda?=?options.lambda;
ker?=?options.ker;
gamma?=?options.gamma;
data?=?options.data;

fprintf（‘JDA:??data=%s??k=%d??lambda=%f\n‘dataklambda）;

%?Set?predefined?variables
X?=?[XsXt];
X?=?X*diag（sparse（1./sqrt（sum（X.^2））））;
[mn]?=?size（X）;
ns?=?size（Xs2）;
nt?=?size（Xt2）;
C?=?length（unique（Ys））;

%?Construct?MMD?matrix
e?=?[1/ns*ones（ns1）;-1/nt*ones（nt1）];
M?=?e*e‘*C;
if?~isempty（Yt0）?&&?length（Yt0）==nt
????for?c?=?reshape（unique（Ys）1C）
????????e?=?zeros（n1）;
????????e（Ys==c）?=?1/length（find（Ys==c））;
????????e（ns+find（Yt0==c））?=?-1/length（find（Yt0==c））;
????????e（isinf（e））?=?0;
????????M?=?M?+?e*e‘;
????end
end
M?=?M/norm（M‘fro‘）;

%?Construct?centering?matrix
H?=?eye（n）-1/（n）*ones（nn）;

%?Joint?Distribution?Adaptation:?JDA
if?strcmp（ker‘primal‘）
????[A~]?=?eigs（X*M*X‘+lambda*eye（m）X*H*X‘k‘SM‘）;
????Z?=?A‘*X;
else
????K?=?kernel（kerX[]gamma）;
????[A~]?=?eigs（K*M*K‘+lambda*eye（n）K*H*K‘k‘SM‘）;
????Z?=?A‘*K;
end

fprintf（‘Algorithm?JDA?terminated!!!\n\n‘）;

end

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-11-09?22:26??CodeData\
?????文件???????12292??2013-11-09?22:26??CodeData\.DS_Store
?????目錄???????????0??2013-11-09?22:25??CodeData\code\
?????文件????????6148??2013-11-09?22:05??CodeData\code\.DS_Store
?????文件????????1792??2013-11-09?22:07??CodeData\code\JDA.m
?????目錄???????????0??2013-11-09?22:26??__MACOSX\
?????目錄???????????0??2013-11-09?22:26??__MACOSX\CodeData\
?????目錄???????????0??2013-11-09?22:26??__MACOSX\CodeData\code\
?????文件?????????120??2013-11-09?22:07??__MACOSX\CodeData\code\._JDA.m
?????文件????????1297??2013-11-09?22:07??CodeData\code\kernel.m
?????文件?????????164??2013-11-09?22:07??__MACOSX\CodeData\code\._kernel.m
?????文件????????1998??2013-11-09?22:07??CodeData\code\run_office.m
?????文件?????????120??2013-11-09?22:07??__MACOSX\CodeData\code\._run_office.m
?????文件????????1633??2013-11-09?22:07??CodeData\code\run_other.m
?????文件?????????120??2013-11-09?22:07??__MACOSX\CodeData\code\._run_other.m
?????文件????????1999??2013-11-09?22:18??CodeData\code\run_pie.m
?????文件?????????120??2013-11-09?22:18??__MACOSX\CodeData\code\._run_pie.m
?????文件?????????164??2013-11-09?22:25??__MACOSX\CodeData\._code
?????目錄???????????0??2013-11-09?22:04??CodeData\data\
?????文件????????6148??2013-04-14?15:39??CodeData\data\.DS_Store
?????文件??????104970??2013-01-09?11:14??CodeData\data\amazon_SURF_L10.mat
?????文件????????3692??2013-01-09?11:14??CodeData\data\amazon_SURF_L10_imgs.mat
?????文件??????150751??2013-01-09?11:14??CodeData\data\Caltech10_SURF_L10.mat
?????文件????????4251??2013-01-09?11:14??CodeData\data\Caltech10_SURF_L10_imgs.mat
?????文件?????3016148??2013-04-05?22:12??CodeData\data\COIL_1.mat
?????目錄???????????0??2013-11-09?22:26??__MACOSX\CodeData\data\
?????文件?????????164??2013-04-05?22:12??__MACOSX\CodeData\data\._COIL_1.mat
?????文件?????3016146??2013-04-05?22:12??CodeData\data\COIL_2.mat
?????文件?????????164??2013-04-05?22:12??__MACOSX\CodeData\data\._COIL_2.mat
?????文件???????18348??2013-01-09?11:14??CodeData\data\dslr_SURF_L10.mat
?????文件?????????893??2013-01-09?11:14??CodeData\data\dslr_SURF_L10_imgs.mat
............此處省略16個(gè)文件信息