def test_get_e_value(): error = BackPropagationLogic.get_e_value(np.array([-1, 0, 1]), np.array([-1, 0, 1])) assert error == 0 error = BackPropagationLogic.get_e_value(np.array([-1, 0, 1]), np.array([-1, 0, 0])) assert error == 0.5 error = BackPropagationLogic.get_e_value(np.array([-1, 0, 1]), np.array([0, 0, 0])) assert error == 1.0 error = BackPropagationLogic.get_e_value(np.array([-1, 0, 1]), np.array([0, 0])) assert error == None
def test_delta_for_output_layer(): output_vec = np.array([1]) predict_vec = np.array([1]) error = BackPropagationLogic.delta_for_output_layer(output_vec, predict_vec) assert error == [0] output_vec = np.array([1,2,3]) predict_vec = np.array([1,2,3]) error = BackPropagationLogic.delta_for_output_layer(output_vec, predict_vec) assert np.all( error == np.array([0, 0, 0])) output_vec = np.array([1,2,3]) predict_vec = np.array([1,2,2]) error = BackPropagationLogic.delta_for_output_layer(output_vec, predict_vec) assert np.all( error == np.array([0, 0, 2])) output_vec = np.array([[1,2,3],[1,2,3]]) predict_vec = np.array([[1,2,3],[1,2,3]]) error = BackPropagationLogic.delta_for_output_layer(output_vec, predict_vec) assert np.all( error == np.array([[0, 0, 0],[0, 0, 0]]))
def test_delta_for_middle_layer(): assert True next_wight_mat = np.array([[1,1,1],[1,1,1],[1,1,1]]) next_deleta_vec = np.array([[0,0,0]]) predict_vec = np.array([[1,1,2]]) error = BackPropagationLogic.delta_for_middle_layer(next_wight_mat, next_deleta_vec, predict_vec) assert np.all( error == np.array([0, 0, 0])) next_wight_mat = np.array([[1,1,1],[1,1,1],[1,1,1]]) next_deleta_vec = np.array([[0,0,1]]) predict_vec = np.array([[1,1,2]]) error = BackPropagationLogic.delta_for_middle_layer(next_wight_mat, next_deleta_vec, predict_vec) assert np.all( error == np.array([0, 0, -2])) next_wight_mat = np.array([[1,1,1],[1,1,1],[1,1,1]]) next_deleta_vec = np.array([[0,1,0]]) predict_vec = np.array([[1,2,1]]) error = BackPropagationLogic.delta_for_middle_layer(next_wight_mat, next_deleta_vec, predict_vec) assert np.all( error == np.array([0, -2, 0]))