function?[?bestever?bestSwarm?]?=?cso（?varargin?）

%??Implementation?of?a?competitive?swarm?optimizer?（CSO）?for?large?scale?optimization
%
%??See?the?details?of?CSO?in?the?following?paper
%??R.?Cheng?and?Y.?Jin?A?Competitive?Swarm?Optimizer?for?Large?Scale?Optmization
%??IEEE?Transactions?on?Cybernetics?2014
%
%??The?test?instances?are?the?CEC‘08?benchmark?functions?for?large?scale?optimization
%
%??The?source?code?CSO?is?implemented?by?Ran?Cheng
%
%??If?you?have?any?questions?about?the?code?please?contact:
%??Ran?Cheng?at?r.cheng@surrey.ac.uk
%??Prof.?Yaochu?Jin?at?yaochu.jin@surrey.ac.uk
%
%??Code?update?on?2018-03-18
%??A.Star?Snowland?Co.?Ltd??chenxiaolong12315@163.com
%
%?[res?bestSwarm]?=?cso（fitness_function?XRRmin?XRRmax?maxfe）
%?input?args
%????fitness:?a?function?handle?to?calculate?the?fitness?of?swarms（popsize?x?dim?matrix）
%????popsize:?integer?the?popsize?of?swarm
%????bound_min?bound_max:?the?matrix（1?x?dim）?is?the?bounary?of?the?swarms
%????maxfe:?a?integer?number?of?iterations
%????debug:?default?0?display?bestfitness?in?each?iteration
%?output?args
%?Example:
%????fun=inline（‘sqrt（x（:1）.^2+x（:2）.^2）‘‘x‘）;
%????[res?swarm]?=?cso（fun100[-8-8][88]10000.2）;
%????xi?=?-8:0.05:8;
%????yi?=?-8:0.05:8;
%????[xy]?=?meshgrid（xi?yi）;
%????z?=?sqrt（x.^2+y.^2）;
%????mesh（xyz）;
%????hold?on
%????plot3（swarm（1）swarm（2）?res?‘r+‘）

[fitness_functionm?bound_min?bound_max?maxfe?phi?debug]?=?checkInput（varargin）;


XRRmin?=?repmat（bound_min?m?1）;
XRRmax?=?repmat（bound_max?m?1）;
[~?d]?=?size（XRRmin）;
%%?initialization
p?=?XRRmin?+?（XRRmax?-?XRRmin）?.*?rand（m?d）;
v?=?zeros（md）;
bestever?=?1e200;
fitness?=?fitness_function（p）;
FES?=?m;
gen?=?0;
bestSwarm?=?p（1:）;
ceil_half_m?=?ceil（m/2）;
%%?main?loop
while（FES?????
????
????%?generate?random?pairs
????rlist?=?randperm（m）;
????rpairs?=?[rlist（1:ceil_half_m）;?rlist（floor（m/2）?+?1:m）]‘;
????
????%?calculate?the?center?position
????center?=?ones（ceil_half_m1）*mean（p）;
????
????%?do?pairwise?competitions
????mask?=?（fitness（rpairs（:1））?>?fitness（rpairs（:2）））;
????losers?=?mask.*rpairs（:1）?+?~mask.*rpairs（:2）;
????winners?=?~mask.*rpairs（:1）?+?mask.*rpairs（:2）;
????
????
????%random?matrix
????randco1?=?rand（ceil_half_m?d）;
????randco2?=?rand（ceil_half_m?d）;
????randco3?=?rand（ceil_half_m?d）;
????
????%?losers?learn?from?winners
????v（losers:）?=?randco1.*v（losers:）?...
????????+?randco2.*（p（winners:）?-?p（losers:））?...
????????+?phi*randco3.*（center?-?p（losers:））;
????p（losers:）?=?p（losers:）?+?v（losers:）;
????
????%?boundary?control
????for?i?=?1:ceil_half_m
????????p（losers（i）:）?=?max（p（losers（i）:）?XRRmin（losers（i）:））;
????????p（losers（i）:）?=?min（p（losers（i）:）?XRRmax（losers（i）:））;
????end
????
????
????%?fitness?evaluation
????fitness（losers:）?=?fitness_function（p（losers:））;
????[min_fitness?min_fitness_ind]?=?min（fitness）;
????if?bestever?>?min_fitness
????????bestever?=?min_fitness;
????????bestSwarm?=?p（min_fitness_ind

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-03-19?09:38??CSO_Matlab-master\
?????目錄???????????0??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\
?????文件???????37430??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\FractalFunctions.jar
?????文件????????7840??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\ackley_shift_func_data.mat
?????文件????????3497??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\benchmark_func.m
?????文件?????????171??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\fastfractal_doubledip_data.mat
?????文件?????????195??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\fbias_data.mat
?????文件????????7817??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\griewank_shift_func_data.mat
?????文件????????7914??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\rastrigin_shift_func_data.mat
?????文件????????7831??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\rosenbrock_shift_func_data.mat
?????文件????????7751??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\schwefel_shift_func_data.mat
?????文件????????7826??2018-03-19?09:38??CSO_Matlab-master\CEC08?Func\sphere_shift_func_data.mat
?????文件????????3431??2018-03-19?09:38??CSO_Matlab-master\CSO.m
?????文件????????3176??2018-03-19?09:38??CSO_Matlab-master\CSO_test.m
?????文件?????????255??2018-03-19?09:38??CSO_Matlab-master\cso_test_hat.m