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[Finnish tokenizer] Handle conjunction contractions (#8105)

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Antti Ajanki 2021-06-16 11:56:47 +03:00 committed by GitHub
parent b09be3e1cb
commit 5a6125c227
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2 changed files with 40 additions and 1 deletions
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15
spacy/lang/fi/tokenizer_exceptions.py
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@ -1,5 +1,5 @@
from ..tokenizer_exceptions import BASE_EXCEPTIONS from ..tokenizer_exceptions import BASE_EXCEPTIONS
from ...symbols import ORTH from ...symbols import ORTH, NORM
from ...util import update_exc from ...util import update_exc
@ -79,5 +79,18 @@ for exc_data in [
]: ]:
_exc[exc_data[ORTH]] = [exc_data] _exc[exc_data[ORTH]] = [exc_data]
# Source: https://kaino.kotus.fi/visk/sisallys.php?p=141
conj_contraction_bases = [
("ett", "että"), ("jott", "jotta"), ("kosk", "koska"), ("mutt", "mutta"),
("vaikk", "vaikka"), ("ehk", "ehkä"), ("miks", "miksi"), ("siks", "siksi"),
("joll", "jos"), ("ell", "jos")
]
conj_contraction_negations = [
("en", "en"), ("et", "et"), ("ei", "ei"), ("emme", "emme"),
("ette", "ette"), ("eivat", "eivät"), ("eivät", "eivät")]
for (base_lower, base_norm) in conj_contraction_bases:
for base in [base_lower, base_lower.title()]:
for (suffix, suffix_norm) in conj_contraction_negations:
_exc[base + suffix] = [{ORTH: base, NORM: base_norm}, {ORTH: suffix, NORM: suffix_norm}]
TOKENIZER_EXCEPTIONS = update_exc(BASE_EXCEPTIONS, _exc) TOKENIZER_EXCEPTIONS = update_exc(BASE_EXCEPTIONS, _exc)

26
spacy/tests/lang/fi/test_tokenizer.py
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@ -36,6 +36,23 @@ ABBREVIATION_INFLECTION_TESTS = [
("EU:n toimesta tehtiin jotain.", ["EU:n", "toimesta", "tehtiin", "jotain", "."]), ("EU:n toimesta tehtiin jotain.", ["EU:n", "toimesta", "tehtiin", "jotain", "."]),
] ]
CONTRACTION_TESTS = [
(
"Päätimme ettemme tule.",
["Päätimme", "ett", "emme", "tule", "."],
["päätimme", "että", "emme", "tule", "."]
),
(
"Miksei puhuttaisi?",
["Miks", "ei", "puhuttaisi", "?"],
["miksi", "ei", "puhuttaisi", "?"]
),
(
"He tottelivat vaikkeivat halunneet",
["He", "tottelivat", "vaikk", "eivat", "halunneet"],
["he", "tottelivat", "vaikka", "eivät", "halunneet"]
),
]
@pytest.mark.parametrize("text,expected_tokens", ABBREVIATION_TESTS) @pytest.mark.parametrize("text,expected_tokens", ABBREVIATION_TESTS)
def test_fi_tokenizer_abbreviations(fi_tokenizer, text, expected_tokens): def test_fi_tokenizer_abbreviations(fi_tokenizer, text, expected_tokens):
@ -56,3 +73,12 @@ def test_fi_tokenizer_abbreviation_inflections(fi_tokenizer, text, expected_toke
tokens = fi_tokenizer(text) tokens = fi_tokenizer(text)
token_list = [token.text for token in tokens if not token.is_space] token_list = [token.text for token in tokens if not token.is_space]
assert expected_tokens == token_list assert expected_tokens == token_list
@pytest.mark.parametrize("text,expected_tokens,expected_norms", CONTRACTION_TESTS)
def test_fi_tokenizer_contractions(fi_tokenizer, text, expected_tokens, expected_norms):
tokens = fi_tokenizer(text)
token_list = [token.text for token in tokens if not token.is_space]
norm_list = [token.norm_ for token in tokens if not token.is_space]
assert expected_tokens == token_list
assert expected_norms == norm_list