Added some tests for the svm_c_ekm_trainer.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403629

dlib/test/svm.cpp

@@ -347,6 +347,10 @@ namespace
         pegasos_trainer.set_lambda(0.00001);
 
 
+        svm_c_ekm_trainer<kernel_type> ocas_ekm_trainer;
+        ocas_ekm_trainer.set_kernel(kernel_type(gamma));
+        ocas_ekm_trainer.set_c(100000);
+
         svm_nu_trainer<kernel_type> trainer;
         trainer.set_kernel(kernel_type(gamma));
         trainer.set_nu(0.05);
@@ -369,6 +373,11 @@ namespace
         print_spinner();
         matrix<scalar_type> lin_cv = cross_validate_trainer_threaded(lin_trainer, x_linearized, y, 4, 2);
         print_spinner();
+        matrix<scalar_type> ocas_ekm_cv = cross_validate_trainer_threaded(ocas_ekm_trainer, x, y, 4, 2);
+        print_spinner();
+        ocas_ekm_trainer.set_basis(randomly_subsample(x, 300));
+        matrix<scalar_type> ocas_ekm_cv2 = cross_validate_trainer_threaded(ocas_ekm_trainer, x, y, 4, 2);
+        print_spinner();
         matrix<scalar_type> peg_cv = cross_validate_trainer_threaded(batch(pegasos_trainer,1.0), x,y, 4, 2);
         print_spinner();
         matrix<scalar_type> peg_c_cv = cross_validate_trainer_threaded(batch_cached(pegasos_trainer,1.0), x,y, 4, 2);
@@ -378,6 +387,8 @@ namespace
         dlog << LDEBUG << "svm cv:        " << svm_cv;
         dlog << LDEBUG << "rbf cv:        " << rbf_cv;
         dlog << LDEBUG << "lin cv:        " << lin_cv;
+        dlog << LDEBUG << "ocas_ekm cv:   " << ocas_ekm_cv;
+        dlog << LDEBUG << "ocas_ekm cv2:  " << ocas_ekm_cv2;
         dlog << LDEBUG << "peg cv:        " << peg_cv;
         dlog << LDEBUG << "peg cached cv: " << peg_c_cv;
 
@@ -391,6 +402,8 @@ namespace
         DLIB_TEST_MSG(mean(lin_cv) > 0.9, lin_cv);
         DLIB_TEST_MSG(mean(peg_cv) > 0.9, peg_cv);
         DLIB_TEST_MSG(mean(peg_c_cv) > 0.9, peg_c_cv);
+        DLIB_TEST_MSG(mean(ocas_ekm_cv) > 0.9, ocas_ekm_cv);
+        DLIB_TEST_MSG(mean(ocas_ekm_cv2) > 0.9, ocas_ekm_cv2);
 
         const long num_sv = trainer.train(x,y).basis_vectors.size();
         print_spinner();
@@ -398,9 +411,14 @@ namespace
         print_spinner();
         dlog << LDEBUG << "num sv: " << num_sv;
         dlog << LDEBUG << "num rv: " << num_rv;
+        print_spinner();
+        ocas_ekm_trainer.clear_basis();
+        const long num_bv = ocas_ekm_trainer.train(x,y).basis_vectors.size();
+        dlog << LDEBUG << "num ekm bv: " << num_bv;
 
         DLIB_TEST(num_rv <= 17);
         DLIB_TEST_MSG(num_sv <= 45, num_sv);
+        DLIB_TEST_MSG(num_bv <= 45, num_bv);
 
         decision_function<kernel_type> df = reduced2(trainer, 19).train(x,y);
         print_spinner();