function?demo_fast_sc（opt_choice）
%?opt_choice?=?1:?use?epslion-L1?penalty
%?opt_choice?=?2:?use?L1?penalty

if?~exist（‘opt_choice‘?‘var‘）
????opt_choice?=?1;?
end

%?natural?image?data
load?../data/IMAGES.mat
X?=?getdata_imagearray（IMAGES?14?10000）;

%?sparse?coding?parameters
num_bases?=?128;
beta?=?0.4;
batch_size?=?1000;
num_iters?=?100;
if?opt_choice==1
????sparsity_func=?‘epsL1‘;
????epsilon?=?0.01;
elseif?opt_choice==2
????sparsity_func=?‘L1‘;
????epsilon?=?[];
end

Binit?=?[];
fname_save?=?sprintf（‘../results/sc_%s_b%d_beta%g_%s‘?sparsity_func?num_bases?beta?datestr（now?30））;	

%?run?fast?sparse?coding
[B?S?stat]?=?sparse_coding（X?num_bases?beta?sparsity_func?epsilon?num_iters?batch_size?fname_save?Binit）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????740??2007-06-27?05:11??demo_fast_sc.m

?????文件????????866??2007-06-27?05:11??display_figures.m

?????文件????????958??2009-12-23?18:43??display_network_nonsquare2.asv

?????文件????????999??2009-12-23?18:50??display_network_nonsquare2.m

?????文件???????2282??2007-06-27?05:11??l2ls_learn_basis_dual.m

?????文件????????661??2007-06-27?03:39??save_figures.m

?????文件???????7299??2009-12-23?18:23??sparse_coding.asv

?????文件???????7331??2009-12-23?18:31??sparse_coding.m

-----------?---------??----------?-----??----

????????????????21136????????????????????8