def test_data_incremental_benchmark_from_lazy_benchmark(self):
pattern_shape = (3, 32, 32)
# Definition of training experiences
# Experience 1
experience_1_x = torch.zeros(100, *pattern_shape)
experience_1_y = torch.zeros(100, dtype=torch.long)
experience_1_dataset = AvalancheTensorDataset(experience_1_x,
experience_1_y)
# Experience 2
experience_2_x = torch.zeros(80, *pattern_shape)
experience_2_y = torch.ones(80, dtype=torch.long)
experience_2_dataset = AvalancheTensorDataset(experience_2_x,
experience_2_y)
# Test experience
test_x = torch.zeros(50, *pattern_shape)
test_y = torch.zeros(50, dtype=torch.long)
experience_test = AvalancheTensorDataset(test_x, test_y)
def train_gen():
# Lazy generator of the training stream
for dataset in [experience_1_dataset, experience_2_dataset]:
yield dataset
def test_gen():
# Lazy generator of the test stream
for dataset in [experience_test]:
yield dataset
initial_benchmark_instance = create_lazy_generic_benchmark(
train_generator=LazyStreamDefinition(train_gen(), 2, [0, 0]),
test_generator=LazyStreamDefinition(test_gen(), 1, [0]),
complete_test_set_only=True,
dataset_type=AvalancheDatasetType.CLASSIFICATION,
)
data_incremental_instance = data_incremental_benchmark(
initial_benchmark_instance, 12, shuffle=False, drop_last=False)
self.assertEqual(16, len(data_incremental_instance.train_stream))
self.assertEqual(1, len(data_incremental_instance.test_stream))
self.assertTrue(data_incremental_instance.complete_test_set_only)
tensor_idx = 0
ref_tensor_x = experience_1_x
ref_tensor_y = experience_1_y
for exp in data_incremental_instance.train_stream:
if exp.current_experience == 8:
# Last mini-exp from 1st exp
self.assertEqual(4, len(exp.dataset))
elif exp.current_experience == 15:
# Last mini-exp from 2nd exp
self.assertEqual(8, len(exp.dataset))
else:
# Other mini-exp
self.assertEqual(12, len(exp.dataset))
if tensor_idx >= 100:
ref_tensor_x = experience_2_x
ref_tensor_y = experience_2_y
tensor_idx = 0
for x, y, *_ in exp.dataset:
self.assertTrue(torch.equal(ref_tensor_x[tensor_idx], x))
self.assertTrue(torch.equal(ref_tensor_y[tensor_idx], y))
tensor_idx += 1
exp = data_incremental_instance.test_stream[0]
self.assertEqual(50, len(exp.dataset))
tensor_idx = 0
for x, y, *_ in exp.dataset:
self.assertTrue(torch.equal(test_x[tensor_idx], x))
self.assertTrue(torch.equal(test_y[tensor_idx], y))
tensor_idx += 1
def test_data_incremental_benchmark(self):
pattern_shape = (3, 32, 32)
# Definition of training experiences
# Experience 1
experience_1_x = torch.zeros(100, *pattern_shape)
experience_1_y = torch.zeros(100, dtype=torch.long)
# Experience 2
experience_2_x = torch.zeros(80, *pattern_shape)
experience_2_y = torch.ones(80, dtype=torch.long)
# Test experience
test_x = torch.zeros(50, *pattern_shape)
test_y = torch.zeros(50, dtype=torch.long)
initial_benchmark_instance = tensors_benchmark(
train_tensors=[
(experience_1_x, experience_1_y),
(experience_2_x, experience_2_y),
],
test_tensors=[(test_x, test_y)],
task_labels=[0, 0], # Task label of each train exp
complete_test_set_only=True,
)
data_incremental_instance = data_incremental_benchmark(
initial_benchmark_instance, 12, shuffle=False, drop_last=False)
self.assertEqual(16, len(data_incremental_instance.train_stream))
self.assertEqual(1, len(data_incremental_instance.test_stream))
self.assertTrue(data_incremental_instance.complete_test_set_only)
tensor_idx = 0
ref_tensor_x = experience_1_x
ref_tensor_y = experience_1_y
for exp in data_incremental_instance.train_stream:
if exp.current_experience == 8:
# Last mini-exp from 1st exp
self.assertEqual(4, len(exp.dataset))
elif exp.current_experience == 15:
# Last mini-exp from 2nd exp
self.assertEqual(8, len(exp.dataset))
else:
# Other mini-exp
self.assertEqual(12, len(exp.dataset))
if tensor_idx >= 100:
ref_tensor_x = experience_2_x
ref_tensor_y = experience_2_y
tensor_idx = 0
for x, y, *_ in exp.dataset:
self.assertTrue(torch.equal(ref_tensor_x[tensor_idx], x))
self.assertTrue(torch.equal(ref_tensor_y[tensor_idx], y))
tensor_idx += 1
exp = data_incremental_instance.test_stream[0]
self.assertEqual(50, len(exp.dataset))
tensor_idx = 0
for x, y, *_ in exp.dataset:
self.assertTrue(torch.equal(test_x[tensor_idx], x))
self.assertTrue(torch.equal(test_y[tensor_idx], y))
tensor_idx += 1