File list (Check if you may need any files):
FDDL_IJCV
.........\FDDL Publish
.........\............\AR_EigenFace.mat
.........\............\demo.m
.........\............\Readme.txt
.........\............\utilies
.........\............\.......\Eigenface_f.m
.........\............\.......\FDDL.m
.........\............\.......\FDDL_Class_Energy.m
.........\............\.......\FDDL_FDL_Energy.m
.........\............\.......\FDDL_Gradient_Comp.m
.........\............\.......\FDDL_INIC.m
.........\............\.......\FDDL_INID.m
.........\............\.......\FDDL_SpaCoef.m
.........\............\.......\FDDL_UpdateDi.m
.........\............\.......\IPM_OSC.m
.........\............\.......\IPM_SC.m
.........\............\.......\soft.m
.........\Readme.txt
.........\Simplified FDDL
.........\...............\data
.........\...............\....\demo_CDL_result_Usps_Journal8.txt
.........\...............\....\usps_test.jf.gz
.........\...............\....\usps_train.jf.gz
.........\...............\demo_simplifiedFDDL.m
.........\...............\Readme.txt
.........\...............\USPS_Dict_255.mat
.........\...............\Utilities
.........\...............\.........\CDLl2_DictLearn_general.m
.........\...............\.........\Comp_CentSparseCoding3_largedata.m
.........\...............\.........\Dictionary_Ini.m
.........\...............\.........\Eigenface_f.m
.........\...............\.........\find_max_eigenv.m
.........\...............\.........\Simplified_FDDL.m
.........\...............\.........\soft.m
.........\...............\.........\SolveDALM_M.m