def test_token_cooccurrence_vectorizer_window_args():
vectorizer_a = TokenCooccurrenceVectorizer(window_functions="variable")
vectorizer_b = TokenCooccurrenceVectorizer(
window_functions="variable", window_args={"power": 0.75}
)
assert (
vectorizer_a.fit_transform(token_data) != vectorizer_b.fit_transform(token_data)
).nnz == 0
def test_token_cooccurrence_vectorizer_info_window():
vectorizer = TokenCooccurrenceVectorizer(window_function="information")
result = vectorizer.fit_transform(token_data)
assert scipy.sparse.issparse(result)
vectorizer = TokenCooccurrenceVectorizer(window_radius=1,
window_orientation="after")
result = vectorizer.fit_transform(token_data)
assert result[0, 2] == 8
assert result[1, 0] == 6
def test_token_cooccurrence_vectorizer_max_freq():
vectorizer = TokenCooccurrenceVectorizer(max_frequency=0.2)
result = vectorizer.fit_transform(token_data)
assert scipy.sparse.issparse(result)
vectorizer = TokenCooccurrenceVectorizer(window_radius=1,
window_orientation="after")
result = vectorizer.fit_transform(token_data)
assert result[0, 2] == 8
assert result[1, 0] == 6
def test_token_cooccurrence_vectorizer_variable_window():
vectorizer = TokenCooccurrenceVectorizer(window_functions="variable")
result = vectorizer.fit_transform(token_data)
assert scipy.sparse.issparse(result)
vectorizer = TokenCooccurrenceVectorizer(
window_radii=1, window_orientations="after", normalize_windows=False
)
result = vectorizer.fit_transform(token_data)
assert result[0, 2] == 8
assert result[1, 0] == 6
def test_cooccurrence_vectorizer_epsilon():
vectorizer_a = TokenCooccurrenceVectorizer(epsilon=0)
vectorizer_b = TokenCooccurrenceVectorizer(epsilon=1e-11)
vectorizer_c = TokenCooccurrenceVectorizer(epsilon=1)
mat1 = normalize(
vectorizer_a.fit_transform(token_data).toarray(), axis=0, norm="l1"
)
mat2 = vectorizer_b.fit_transform(token_data).toarray()
assert np.allclose(mat1, mat2)
assert vectorizer_c.fit_transform(token_data).nnz == 0
def test_token_cooccurrence_vectorizer_fixed_tokens():
vectorizer = TokenCooccurrenceVectorizer(token_dictionary={1: 0, 2: 1, 3: 2})
result = vectorizer.fit_transform(token_data)
assert scipy.sparse.issparse(result)
vectorizer = TokenCooccurrenceVectorizer(
window_radii=1, window_orientations="after", normalize_windows=False
)
result = vectorizer.fit_transform(token_data)
assert result[0, 2] == 8
assert result[1, 0] == 6
def test_token_cooccurrence_vectorizer_text():
vectorizer = TokenCooccurrenceVectorizer()
result = vectorizer.fit_transform(text_token_data)
assert scipy.sparse.issparse(result)
transform = vectorizer.transform(text_token_data)
assert (result != transform).nnz == 0
vectorizer = TokenCooccurrenceVectorizer(window_radius=1,
window_orientation="after")
result = vectorizer.fit_transform(text_token_data)
transform = vectorizer.transform(text_token_data)
assert (result != transform).nnz == 0
assert result[1, 2] == 8
assert result[0, 1] == 6
def test_token_cooccurrence_vectorizer_kernel_args():
vectorizer_a = TokenCooccurrenceVectorizer(
kernel_functions="geometric",
mask_string="MASK",
kernel_args={"normalize": True},
)
vectorizer_b = TokenCooccurrenceVectorizer(
kernel_functions="geometric",
kernel_args={"normalize": True, "p": 0.9},
mask_string="MASK",
)
assert (
vectorizer_a.fit_transform(token_data) != vectorizer_b.fit_transform(token_data)
).nnz == 0
def test_cooccurrence_vectorizer_coo_mem_limit():
vectorizer_a = TokenCooccurrenceVectorizer(
window_functions="fixed",
n_iter=0,
coo_initial_memory="1k",
normalize_windows=False,
)
vectorizer_b = TokenCooccurrenceVectorizer(
window_functions="fixed",
n_iter=0,
normalize_windows=False,
)
np.random.seed(42)
data = [[np.random.randint(0, 10) for i in range(100)]]
mat1 = vectorizer_a.fit_transform(data).toarray()
mat2 = vectorizer_b.fit_transform(data).toarray()
assert np.allclose(mat1, mat2)
def test_equality_of_CooccurrenceVectorizers(
min_token_occurrences,
max_token_occurrences,
min_document_occurrences,
max_document_frequency,
window_radius,
window_orientation,
kernel_function,
mask_string,
):
tree_model = LabelledTreeCooccurrenceVectorizer(
window_radius=window_radius,
window_orientation=window_orientation,
kernel_function=kernel_function,
min_occurrences=min_token_occurrences,
max_occurrences=max_token_occurrences,
max_tree_frequency=max_document_frequency,
min_tree_occurrences=min_document_occurrences,
mask_string=mask_string,
)
seq_model = TokenCooccurrenceVectorizer(
window_radius=window_radius,
window_orientation=window_orientation,
kernel_function=kernel_function,
min_occurrences=min_token_occurrences,
max_occurrences=max_token_occurrences,
max_document_frequency=max_document_frequency,
min_document_occurrences=min_document_occurrences,
mask_string=mask_string,
)
assert np.allclose(
tree_model.fit_transform(seq_tree_sequence).toarray(),
seq_model.fit_transform(text_token_data_permutation).toarray(),
)
assert np.allclose(
tree_model.fit_transform(seq_tree_sequence).toarray(),
tree_model.transform(seq_tree_sequence).toarray(),
)
assert np.allclose(
seq_model.fit_transform(text_token_data_permutation).toarray(),
seq_model.transform(text_token_data_permutation).toarray(),
)
assert np.allclose(
tree_model.transform(seq_tree_sequence).toarray(),
seq_model.transform(text_token_data_permutation).toarray(),
)
def test_reverse_cooccurrence_vectorizer():
seq_model1 = TokenCooccurrenceVectorizer(
window_radii=2,
window_orientations="after",
kernel_functions="harmonic",
mask_string=None,
normalize_windows=False,
)
seq_model2 = TokenCooccurrenceVectorizer(
window_radii=2,
window_orientations="before",
kernel_functions="harmonic",
mask_string=None,
normalize_windows=False,
)
reversed_after = (seq_model1.fit_transform(text_token_data).toarray().T,)
before = (seq_model2.fit_transform(text_token_data).toarray(),)
assert np.allclose(reversed_after, before)
def test_token_cooccurrence_vectorizer_offset(kernel_function):
vectorizer_a = TokenCooccurrenceVectorizer(
kernel_functions=kernel_function, window_radii=1, normalize_windows=False
)
vectorizer_b = TokenCooccurrenceVectorizer(
kernel_functions=kernel_function, window_radii=2, normalize_windows=False
)
vectorizer_c = TokenCooccurrenceVectorizer(
window_radii=2,
kernel_functions=kernel_function,
kernel_args={"offset": 1},
normalize_windows=False,
)
mat1 = (
vectorizer_a.fit_transform(token_data) + vectorizer_c.fit_transform(token_data)
).toarray()
mat2 = vectorizer_b.fit_transform(token_data).toarray()
assert np.allclose(mat1, mat2)
def test_equality_of_CooccurrenceVectorizers(
n_iter,
normalize_windows,
kernel_function,
n_threads,
):
window_radius = [1, 3]
window_function = ["fixed", "variable"]
model1 = TokenCooccurrenceVectorizer(
window_radii=window_radius,
n_iter=n_iter,
kernel_functions=kernel_function,
window_functions=window_function,
normalize_windows=normalize_windows,
n_threads=n_threads,
)
model2 = TimedTokenCooccurrenceVectorizer(
window_radii=window_radius,
kernel_functions=kernel_function,
window_functions=window_function,
n_iter=n_iter,
normalize_windows=normalize_windows,
n_threads=n_threads,
)
model3 = MultiSetCooccurrenceVectorizer(
window_radii=window_radius,
kernel_functions=kernel_function,
window_functions=window_function,
n_iter=n_iter,
normalize_windows=normalize_windows,
n_threads=n_threads,
)
base_result = model1.fit_transform(tiny_token_data).toarray()
assert np.allclose(
base_result,
model2.fit_transform(timed_tiny_token_data).toarray(),
)
assert np.allclose(
base_result,
model3.fit_transform(tiny_multi_token_data).toarray(),
)
assert np.allclose(
base_result,
model1.transform(tiny_token_data).toarray(),
)
assert np.allclose(
base_result,
model2.transform(timed_tiny_token_data).toarray(),
)
assert np.allclose(
base_result,
model3.transform(tiny_multi_token_data).toarray(),
)
def test_equality_of_Tree_and_Token_CooccurrenceVectorizers(
min_token_occurrences,
max_document_frequency,
window_radius,
window_orientation,
kernel_function,
mask_string,
nullify_mask,
):
tree_model = LabelledTreeCooccurrenceVectorizer(
window_radius=window_radius,
window_orientation=window_orientation,
kernel_function=kernel_function,
min_occurrences=min_token_occurrences,
max_tree_frequency=max_document_frequency,
mask_string=mask_string,
nullify_mask=nullify_mask and not mask_string is None,
)
seq_model = TokenCooccurrenceVectorizer(
window_radii=window_radius,
window_orientations=window_orientation,
kernel_functions=kernel_function,
min_occurrences=min_token_occurrences,
max_document_frequency=max_document_frequency,
mask_string=mask_string,
normalize_windows=False,
nullify_mask=nullify_mask and not mask_string is None,
)
assert np.allclose(
tree_model.fit_transform(seq_tree_sequence).toarray(),
seq_model.fit_transform(text_token_data_permutation).toarray(),
)
assert np.allclose(
tree_model.fit_transform(seq_tree_sequence).toarray(),
tree_model.transform(seq_tree_sequence).toarray(),
)
assert np.allclose(
seq_model.fit_transform(text_token_data_permutation).toarray(),
seq_model.transform(text_token_data_permutation).toarray(),
)
def test_token_cooccurrence_vectorizer_orientation():
vectorizer = TokenCooccurrenceVectorizer(window_radius=1,
window_orientation="directional")
result = vectorizer.fit_transform(text_token_data)
assert result.shape == (4, 8)
# Check the pok preceded by wer value is 1
row = vectorizer.token_label_dictionary_["pok"]
col = vectorizer.column_label_dictionary_["pre_wer"]
assert result[row, col] == 1
result_before = TokenCooccurrenceVectorizer(
window_orientation="before").fit_transform(text_token_data)
result_after = TokenCooccurrenceVectorizer(
window_orientation="after").fit_transform(text_token_data)
assert np.all(
result_after.toarray() == (result_before.transpose()).toarray())
result_symmetric = TokenCooccurrenceVectorizer(
window_orientation="symmetric").fit_transform(text_token_data)
assert np.all(result_symmetric.toarray() == (result_before +
result_after).toarray())
def test_token_cooccurrence_vectorizer_orientation():
vectorizer = TokenCooccurrenceVectorizer(
window_radii=1, window_orientations="directional", normalize_windows=False
)
result = vectorizer.fit_transform(text_token_data)
assert result.shape == (4, 8)
# Check the pok preceded by wer value is 1
row = vectorizer.token_label_dictionary_["pok"]
col = vectorizer.column_label_dictionary_["pre_0_wer"]
assert result[row, col] == 1
result_before = TokenCooccurrenceVectorizer(
window_radii=1, window_orientations="before", normalize_windows=False
).fit_transform(text_token_data)
result_after = TokenCooccurrenceVectorizer(
window_radii=1, window_orientations="after", normalize_windows=False
).fit_transform(text_token_data)
assert np.all(result_after.toarray() == (result_before.transpose()).toarray())
assert np.all(
result.toarray() == np.hstack([result_before.toarray(), result_after.toarray()])
)
def test_token_cooccurrence_vectorizer_excessive_prune():
vectorizer = TokenCooccurrenceVectorizer(min_frequency=1.0)
with pytest.raises(ValueError):
result = vectorizer.fit_transform(token_data)
def test_token_cooccurence_vectorizer_transform_new_vocab():
vectorizer = TokenCooccurrenceVectorizer()
result = vectorizer.fit_transform(text_token_data_subset)
transform = vectorizer.transform(text_token_data_new_token)
assert (result != transform).nnz == 0
def test_token_cooccurrence_vectorizer_transform():
vectorizer = TokenCooccurrenceVectorizer(window_orientation='symmetric')
result = vectorizer.fit_transform(text_token_data_subset)
transform = vectorizer.transform(text_token_data)
assert result.shape == transform.shape
assert transform[0, 0] == 34
def test_token_cooccurrence_vectorizer_mixed():
vectorizer = TokenCooccurrenceVectorizer()
with pytest.raises(ValueError):
vectorizer.fit_transform(mixed_token_data)
def test_token_cooccurrence_vectorizer_transform():
vectorizer = TokenCooccurrenceVectorizer()
result = vectorizer.fit_transform(text_token_data_subset)
transform = vectorizer.transform(text_token_data)
assert result.shape == transform.shape
assert transform[0, 0] == 34