Example #1
0
"""
## strategy: retrain-new
oracle_retrain_new_errors = []
oracle_retrain_new = lg.LgSegmentModel(xs,ys,ss,'train-all',k)
svm_retrain_new = lg.UserDefineModel(xs,ys,dy,ss,'train-all') # using the default value 
test_xs,test_ys,test_ss = digits.generate_additional_data (tasks, oracle_retrain_new, svm_retrain_new,3)
for j in range(train_iter):
    oracle_retrain_new.train_all_fs()
    oracle_retrain_new.train_ws()
oracle_retrain_new.strategy = 'retrain-new'    

svm_retrain_new.train_all_fs()
svm_retrain_new.train_ws()
svm_retrain_new_errors = []
svm_retrain_new.strategy = 'retrain-new'
oracle_err = lg.seg_model_error_01(oracle_retrain_new, test_xs, test_ys, test_ss, num=20)
oracle_retrain_new_errors.append(oracle_err)
svm_err = lg.seg_model_error_01(svm_retrain_new,test_xs,test_ys,test_ss)
svm_retrain_new_errors.append(svm_err)
print "Initial Error OracleMTL---Train All: %f" % oracle_err
print 'Initial Error SVM_mtl---Train All: ', svm_err


"""
## strategy: average-weight
oracle_average_weight_errors = []
oracle_average_weight = lg.LgSegmentModel(xs,ys,ss,'train-all',k) 
svm_average_weight = lg.UserDefineModel(xs,ys,dy,ss,'train-all') # using the default value 
test_xs,test_ys,test_ss = digits.generate_additional_data (tasks, oracle_average_weight, svm_average_weight,3)
for j in range(train_iter):
    oracle_average_weight.train_all_fs()
Example #2
0
test_Z = digits.normalize_digits(test_x)
#Z = digits.fourier_project(train_x)

####### Initialization ##########
tasks = digits.create_mtl_datasets(Z, train_y, nTasks=100, taskSize=30, testSize=40)
xs,ys,dy,ss,test_xs,test_ys,test_dy,test_ts = digits.generate_data(tasks)
k = 20
k_svm = 10

oracle_mtl_errors = []
oracle_mtl = lg.LgSegmentModel(xs,ys,ss,'train-all',k)

for j in range(6):
    oracle_mtl.train_all_fs()
    oracle_mtl.train_ws()
oracle_err = lg.seg_model_error_01(oracle_mtl, test_xs, test_ys, test_ts, num=20)
#oracle_mtl_errors.append(oracle_err)
print "Initial Error OracleMTL: %f" % oracle_err

svm_mtl = lg.UserDefineModel(xs,ys,dy,ss,'train-all','l2') # using the default value 
svm_mtl.train_all_fs()
svm_mtl.train_ws()
svm_err = lg.seg_model_error_01(svm_mtl,test_xs,test_ys,test_ts)
print 'Initial Error SVM_mtl-l2 ', svm_err
svm_feature_errors = []

svm_mtl1 = lg.UserDefineModel(xs,ys,dy,ss,'train-all','l1') # using the default value 
svm_mtl1.train_all_fs()
svm_mtl1.train_ws()
svm_err = lg.seg_model_error_01(svm_mtl1,test_xs,test_ys,test_ts)
print 'Initial Error SVM_mtl-l1 ', svm_err