Mercurial > hg > smallbox
view util/small_to_unloc.m @ 246:cef4500b936f ver_2.1
Merge
author | luisf <luis.figueira@eecs.qmul.ac.uk> |
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date | Wed, 31 Oct 2012 12:10:13 +0000 |
parents | 5c8bcdadb380 |
children |
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function [b2,f1,f2,param] = small_to_unloc(b,A,param) if nargin<3, param=struct; end % set parameters if ~isfield(param, 'verbose'), param.verbose = 0; end if ~isfield(param, 'T'), param.T = 1; end if ~isfield(param, 'gamma'), param.gamma = 1/(1.1*norm(A)^2); end if ~isfield(param, 'sigma'), param.sigma = 1; end %set function f2 param_f2.verbose=param.verbose; param_f2.A=@(x) A*x; param_f2.At=@(x) A'*x; param_f2.y=b; param_f2.tight=0; param_f2.nu=norm(A,2)^2; param_f2.epsilon=param.sigma; f2.prox= @(x,l) fast_proj_B2(x,l,param_f2); % douglas rachford, admm f2.grad= @(x) 2*A'*(A*x-b); %forward backward f2.x0=A'*b; f2.norm=@(x) 0; %set function f1 param_f1.verbose=param.verbose; f1.x0=A'*b; f1.norm= @(x) sum(sum(abs(x))); f1.prox= @(x,l) prox_L1(x,param.T*l,param_f1); %set initial point b2=A'*b; end