def test_duplicate_non_winner(self):
softmax_values = np.array([[0.1, 0.8, 0.05, 0.05],
[0.2, 0.09, 0.7, 0.01]])
prediction, softmax = MaxSoftmax.calculate(softmax_values)
self.assertEqual((2, ), prediction.shape)
self.assertEqual((2, ), softmax.shape)
self.assertEqual(1, prediction[0])
self.assertAlmostEqual(0.8, softmax[0])
self.assertEqual(2, prediction[1])
self.assertAlmostEqual(0.7, softmax[1])
def test_happy_path_batch(self):
softmax_values = np.array([[0.1, 0.8, 0.08, 0.02],
[0.1, 0.8, 0.08, 0.02],
[0.2, 0.09, 0.7, 0.01]])
prediction, softmax = MaxSoftmax.calculate(softmax_values)
self.assertEqual((3, ), prediction.shape)
self.assertEqual((3, ), softmax.shape)
self.assertEqual(1, prediction[0])
self.assertAlmostEqual(0.8, softmax[0])
self.assertEqual(1, prediction[1])
self.assertAlmostEqual(0.8, softmax[1])
self.assertEqual(2, prediction[2])
self.assertAlmostEqual(0.7, softmax[2])
def test_duplicate_winner(self):
softmax_values = np.array([[0.4, 0.4, 0.1, 0.1],
[0.2, 0.09, 0.7, 0.01]])
prediction, softmax = MaxSoftmax.calculate(softmax_values)
self.assertEqual((2, ), prediction.shape)
self.assertEqual((2, ), softmax.shape)
self.assertTrue(
0 == prediction[0] or 1 == prediction[0],
"Prediction must be index 0 or 1, but was {0}".format(
prediction[0]),
)
self.assertAlmostEqual(0.4, softmax[0])
self.assertEqual(2, prediction[1])
self.assertAlmostEqual(0.7, softmax[1])
def test_happy_path_single(self):
softmax_values = np.array([0.1, 0.8, 0.08, 0.02])
softmax_values = np.expand_dims(softmax_values, 0)
prediction, softmax = MaxSoftmax.calculate(softmax_values)
self.assertEqual(1, prediction[0])
self.assertAlmostEqual(0.8, softmax[0])
def test_problem_type(self):
self.assertEqual(MaxSoftmax.problem_type(), ProblemType.CLASSIFICATION)
def test_samples_type_declaration(self):
self.assertFalse(MaxSoftmax.takes_samples())
def test_is_confidence(self):
self.assertTrue(MaxSoftmax.is_confidence())
self.assertTrue(MaxSoftmax().is_confidence())