diff core/magnatagatune/tests_evals/rbm_subspace/write_mat_results_ISMIR13RBM_singletraining.m @ 0:e9a9cd732c1e tip

first hg version after svn

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/magnatagatune/tests_evals/rbm_subspace/write_mat_results_ISMIR13RBM_singletraining.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,136 @@
+function [out, stats] = write_mat_results_ISMIR13RBM_singletraining(dirin,fileout)
+% combine the test results from the directories supplied,
+% group them according to dataset parameter values
+% combine the test results from the directories supplied,
+% group them according to dataset parameter values
+
+features = [];
+show = 1;
+
+if nargin == 0
+    dirin{1} = './';
+end
+
+global comparison;
+global comparison_ids;
+     
+newout = [];
+thisdir = pwd;
+% loop through al lthe result directories and 
+for diri = 1:numel(dirin)
+
+    % ---
+    % go to directory and locate file
+    % ---
+    cd(dirin{diri});
+
+    u = dir();
+    u = {u.name};
+    [idx, strpos] = substrcellfind(u, '_finalresults.mat', 1);
+    
+    if numel(idx) < 1
+        error 'This directory contains no valid test data';
+    end
+    
+    % just one or more tests in this folder?
+    if exist('file','var') && isnumeric(file)
+        cprint(1, 'loading one result file');
+        file = u{idx(file)};
+        data = load(file);
+        sappend(out,data.out);
+    else
+        for filei = 1:numel(idx)
+            cprint(1, 'loading result file %i of %i',filei, numel(idx));
+            file = u{idx(filei)};
+            data = load(file);
+            newout = sappend(newout,data.out);
+        end
+    end
+    % reset act directory
+    cd(thisdir);
+end
+
+% ---
+% filter according to training parameter C
+%
+% NOTE :if we don't filter by C, we get strong overfitting with training
+% success > 96 % and test set performance aorund 65 %
+% ---
+cs = zeros(numel(newout),1);
+for i=1:numel(newout)
+    cs(i) = newout(i).trainparams.C;
+end
+cvals = unique(cs);
+
+for ci=1:numel(cvals)
+    valididx = find(cs == cvals(ci));
+    filteredout = newout(valididx);
+    
+    % ---
+    % get parameter statistics
+    % ---
+    stats = test_generic_display_param_influence(filteredout, show);
+
+    % get maximal values for each test set bin
+    % ---
+    % trainparams.dataset contains sets which have each only one bin of the
+    % ismir testsets 
+    % ---
+    max_idx = [stats.trainparams.dataset.mean_ok_train.max_idx];   
+    ok_test = zeros(2, numel(max_idx));
+    ok_train =  zeros(2, numel(max_idx));
+    ok_config = [];
+    % cycle over all test sets and save best result
+    for i=1:numel(max_idx)
+        ok_test(:,i) = filteredout(max_idx(i)).mean_ok_test;
+        ok_train(:,i) = filteredout(max_idx(i)).mean_ok_train;
+        ok_config = sappend(ok_config,struct('trainparams',filteredout(max_idx(i)).trainparams, ...
+                                                'fparams',filteredout(max_idx(i)).fparams));
+    end
+    % save the stuff
+    out(ci).mean_ok_test = mean(ok_test,2);
+    out(ci).var_ok_test = var(ok_test,0,2);
+    out(ci).mean_ok_train = mean(ok_train,2);
+    out(ci).var_ok_train = var(ok_train,0,2);
+    out(ci).trainparams.C = cvals(ci);
+    out(ci).ok_config = ok_config;
+    out(ci).ok_test = ok_test;
+    out(ci).ok_train = ok_train;
+end
+
+% ---
+% show results for different C
+% ---
+if numel([out.mean_ok_test]) > 1 && show
+    
+    % plot means  % plot std = sqrt(var) % plot training results
+    figure;
+    boxplot([out.mean_ok_test], sqrt([out.var_ok_test]), [out.mean_ok_train]);
+    title (sprintf('Performance for all configs'));
+end
+
+% --- 
+% write max. test success
+% ---
+mean_ok_test = [out.mean_ok_test];
+[val, idx] = max(mean_ok_test(1,:));
+if show
+    fprintf(' --- Maximal test set success: nr. %d, %3.2f percent. --- \n', idx, val * 100)
+end
+
+% save
+save([hash(strcat(dirin{:}),'md5') '_summary'], 'out');
+
+end
+
+
+
+function boxplot(mean, std, train);
+
+    bar([train; mean]', 1.5);
+    hold on;
+    errorbar(1:size(mean,2), mean(1,:), std(1,:),'.');
+%     plot(train,'rO');
+    colormap(spring);
+    axis([0 size(mean,2)+1 max(0, min(min([train mean] - 0.1))) max(max([train mean] + 0.1))]);
+end