def test_compute(): a = np.random.randn(4) b = np.random.randn(4) c = np.random.randn(4) d = np.random.randn(4) ground_truth = np.random.randn(4) m = CanberraMetric() canberra = DistanceMetric.get_metric("canberra") m.update((torch.from_numpy(a), torch.from_numpy(ground_truth))) np_sum = (np.abs(ground_truth - a) / (np.abs(a) + np.abs(ground_truth))).sum() assert m.compute() == pytest.approx(np_sum) assert canberra.pairwise([a, ground_truth])[0][1] == pytest.approx(np_sum) m.update((torch.from_numpy(b), torch.from_numpy(ground_truth))) np_sum += ((np.abs(ground_truth - b)) / (np.abs(b) + np.abs(ground_truth))).sum() assert m.compute() == pytest.approx(np_sum) v1 = np.hstack([a, b]) v2 = np.hstack([ground_truth, ground_truth]) assert canberra.pairwise([v1, v2])[0][1] == pytest.approx(np_sum) m.update((torch.from_numpy(c), torch.from_numpy(ground_truth))) np_sum += ((np.abs(ground_truth - c)) / (np.abs(c) + np.abs(ground_truth))).sum() assert m.compute() == pytest.approx(np_sum) v1 = np.hstack([v1, c]) v2 = np.hstack([v2, ground_truth]) assert canberra.pairwise([v1, v2])[0][1] == pytest.approx(np_sum) m.update((torch.from_numpy(d), torch.from_numpy(ground_truth))) np_sum += (np.abs(ground_truth - d) / (np.abs(d) + np.abs(ground_truth))).sum() assert m.compute() == pytest.approx(np_sum) v1 = np.hstack([v1, d]) v2 = np.hstack([v2, ground_truth]) assert canberra.pairwise([v1, v2])[0][1] == pytest.approx(np_sum)
def test_compute(): a = np.random.randn(4) b = np.random.randn(4) c = np.random.randn(4) d = np.random.randn(4) ground_truth = np.random.randn(4) m = CanberraMetric() m.update((torch.from_numpy(a), torch.from_numpy(ground_truth))) np_sum = (np.abs(ground_truth - a) / (a + ground_truth)).sum() assert m.compute() == pytest.approx(np_sum) m.update((torch.from_numpy(b), torch.from_numpy(ground_truth))) np_sum += ((np.abs(ground_truth - b)) / (b + ground_truth)).sum() assert m.compute() == pytest.approx(np_sum) m.update((torch.from_numpy(c), torch.from_numpy(ground_truth))) np_sum += ((np.abs(ground_truth - c)) / (c + ground_truth)).sum() assert m.compute() == pytest.approx(np_sum) m.update((torch.from_numpy(d), torch.from_numpy(ground_truth))) np_sum += (np.abs(ground_truth - d) / (d + ground_truth)).sum() assert m.compute() == pytest.approx(np_sum)
def _test(metric_device): metric_device = torch.device(metric_device) m = CanberraMetric(device=metric_device) torch.manual_seed(10 + rank) y_pred = torch.randint(0, 10, size=(10, ), device=device).float() y = torch.randint(0, 10, size=(10, ), device=device).float() m.update((y_pred, y)) # gather y_pred, y y_pred = idist.all_gather(y_pred) y = idist.all_gather(y) np_y_pred = y_pred.cpu().numpy() np_y = y.cpu().numpy() res = m.compute() assert canberra.pairwise([np_y_pred, np_y])[0][1] == pytest.approx(res)