def test_select_best_batch():
competences = np.array([[1.0, 0.5, 0.5], [0.8, 0.9, 1.0], [0.0, 0.0,
0.15]])
expected = [0, 2, 2]
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='best')
selected_clf = dcs_test.select(competences)
assert np.array_equal(selected_clf, expected)
def test_select_all_batch():
competences = np.array([[1.0, 1.0, 0.5], [0.8, 0.9, 0.9],
[0.15, 0.15, 0.15], [0.0, 0.0, 0.0]])
expected = np.array([[True, True, False], [False, True, True],
[True, True, True], [True, True, True]])
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='all')
selected_clf = dcs_test.select(competences)
assert np.array_equal(selected_clf, expected)
def test_select_diff(competences, expected):
rng = np.random.RandomState(123456)
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers,
selection_method='diff',
diff_thresh=0.15,
rng=rng)
selected_clf = dcs_test.select(np.array(competences))
assert np.allclose(selected_clf, expected)
def test_select_random_batch():
competences = np.array([[0.5, 0.5, 0.5], [0.8, 0.9, 1.0], [0.0, 0.10,
0.0]])
expected = np.array([1, 2, 1])
rng = np.random.RandomState(123456)
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='random', rng=rng)
selected_clf = dcs_test.select(competences)
assert np.array_equal(selected_clf, expected)
def test_select_diff_batch():
competences = np.array([[1.0, 0.5, 0.5], [0.8, 0.9, 1.0], [0.0, 0.0,
0.15]])
expected = np.array([0, 2, 2])
rng = np.random.RandomState(123456)
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers,
selection_method='diff',
diff_thresh=0.15,
rng=rng)
selected_clf = dcs_test.select(competences)
assert np.array_equal(selected_clf, expected)
def test_select_all(competences, expected):
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='all')
selected_clf = dcs_test.select(np.array(competences))
assert np.allclose(selected_clf, expected)
def test_select_random(competences, expected):
rng = np.random.RandomState(123456)
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='random', rng=rng)
selected_clf = dcs_test.select(competences)
assert selected_clf == expected
def test_select_all(competences, expected):
pool_classifiers = create_pool_classifiers()
dcs_test = DCS(pool_classifiers, selection_method='all')
selected_clf = dcs_test.select(competences)
assert selected_clf == expected