spaCy/spacy/tests/matcher/test_levenshtein.py
Kevin Humphreys 19650ebb52
Enable fuzzy text matching in Matcher (#11359)
* enable fuzzy matching

* add fuzzy param to EntityMatcher

* include rapidfuzz_capi

not yet used

* fix type

* add FUZZY predicate

* add fuzzy attribute list

* fix type properly

* tidying

* remove unnecessary dependency

* handle fuzzy sets

* simplify fuzzy sets

* case fix

* switch to FUZZYn predicates

use Levenshtein distance.
remove fuzzy param.
remove rapidfuzz_capi.

* revert changes added for fuzzy param

* switch to polyleven

(Python package)

* enable fuzzy matching

* add fuzzy param to EntityMatcher

* include rapidfuzz_capi

not yet used

* fix type

* add FUZZY predicate

* add fuzzy attribute list

* fix type properly

* tidying

* remove unnecessary dependency

* handle fuzzy sets

* simplify fuzzy sets

* case fix

* switch to FUZZYn predicates

use Levenshtein distance.
remove fuzzy param.
remove rapidfuzz_capi.

* revert changes added for fuzzy param

* switch to polyleven

(Python package)

* fuzzy match only on oov tokens

* remove polyleven

* exclude whitespace tokens

* don't allow more edits than characters

* fix min distance

* reinstate FUZZY operator

with length-based distance function

* handle sets inside regex operator

* remove is_oov check

* attempt build fix

no mypy failure locally

* re-attempt build fix

* don't overwrite fuzzy param value

* move fuzzy_match

to its own Python module to allow patching

* move fuzzy_match back inside Matcher

simplify logic and add tests

* Format tests

* Parametrize fuzzyn tests

* Parametrize and merge fuzzy+set tests

* Format

* Move fuzzy_match to a standalone method

* Change regex kwarg type to bool

* Add types for fuzzy_match

- Refactor variable names
- Add test for symmetrical behavior

* Parametrize fuzzyn+set tests

* Minor refactoring for fuzz/fuzzy

* Make fuzzy_match a Matcher kwarg

* Update type for _default_fuzzy_match

* don't overwrite function param

* Rename to fuzzy_compare

* Update fuzzy_compare default argument declarations

* allow fuzzy_compare override from EntityRuler

* define new Matcher keyword arg

* fix type definition

* Implement fuzzy_compare config option for EntityRuler and SpanRuler

* Rename _default_fuzzy_compare to fuzzy_compare, remove from reexported objects

* Use simpler fuzzy_compare algorithm

* Update types

* Increase minimum to 2 in fuzzy_compare to allow one transposition

* Fix predicate keys and matching for SetPredicate with FUZZY and REGEX

* Add FUZZY6..9

* Add initial docs

* Increase default fuzzy to rounded 30% of pattern length

* Update docs for fuzzy_compare in components

* Update EntityRuler and SpanRuler API docs

* Rename EntityRuler and SpanRuler setting to matcher_fuzzy_compare

To having naming similar to `phrase_matcher_attr`, rename
`fuzzy_compare` setting for `EntityRuler` and `SpanRuler` to
`matcher_fuzzy_compare. Organize next to `phrase_matcher_attr` in docs.

* Fix schema aliases

Co-authored-by: Sofie Van Landeghem <svlandeg@users.noreply.github.com>

* Fix typo

Co-authored-by: Sofie Van Landeghem <svlandeg@users.noreply.github.com>

* Add FUZZY6-9 operators and update tests

* Parameterize test over greedy

Co-authored-by: Sofie Van Landeghem <svlandeg@users.noreply.github.com>

* Fix type for fuzzy_compare to remove Optional

* Rename to spacy.levenshtein_compare.v1, move to spacy.matcher.levenshtein

* Update docs following levenshtein_compare renaming

Co-authored-by: Adriane Boyd <adrianeboyd@gmail.com>
Co-authored-by: Sofie Van Landeghem <svlandeg@users.noreply.github.com>
2023-01-10 10:36:17 +01:00

74 lines
2.7 KiB
Python

import pytest
from spacy.matcher import levenshtein
from spacy.matcher.levenshtein import levenshtein_compare
# empty string plus 10 random ASCII, 10 random unicode, and 2 random long tests
# from polyleven
@pytest.mark.parametrize(
"dist,a,b",
[
(0, "", ""),
(4, "bbcb", "caba"),
(3, "abcb", "cacc"),
(3, "aa", "ccc"),
(1, "cca", "ccac"),
(1, "aba", "aa"),
(4, "bcbb", "abac"),
(3, "acbc", "bba"),
(3, "cbba", "a"),
(2, "bcc", "ba"),
(4, "aaa", "ccbb"),
(3, "うあい", "いいうい"),
(2, "あううい", "うあい"),
(3, "いういい", "うううあ"),
(2, "うい", "あいあ"),
(2, "いあい", "いう"),
(1, "いい", "あいい"),
(3, "あうあ", "いいああ"),
(4, "いあうう", "ううああ"),
(3, "いあいい", "ういああ"),
(3, "いいああ", "ううあう"),
(
166,
"TCTGGGCACGGATTCGTCAGATTCCATGTCCATATTTGAGGCTCTTGCAGGCAAAATTTGGGCATGTGAACTCCTTATAGTCCCCGTGC",
"ATATGGATTGGGGGCATTCAAAGATACGGTTTCCCTTTCTTCAGTTTCGCGCGGCGCACGTCCGGGTGCGAGCCAGTTCGTCTTACTCACATTGTCGACTTCACGAATCGCGCATGATGTGCTTAGCCTGTACTTACGAACGAACTTTCGGTCCAAATACATTCTATCAACACCGAGGTATCCGTGCCACACGCCGAAGCTCGACCGTGTTCGTTGAGAGGTGGAAATGGTAAAAGATGAACATAGTC",
),
(
111,
"GGTTCGGCCGAATTCATAGAGCGTGGTAGTCGACGGTATCCCGCCTGGTAGGGGCCCCTTCTACCTAGCGGAAGTTTGTCAGTACTCTATAACACGAGGGCCTCTCACACCCTAGATCGTCCAGCCACTCGAAGATCGCAGCACCCTTACAGAAAGGCATTAATGTTTCTCCTAGCACTTGTGCAATGGTGAAGGAGTGATG",
"CGTAACACTTCGCGCTACTGGGCTGCAACGTCTTGGGCATACATGCAAGATTATCTAATGCAAGCTTGAGCCCCGCTTGCGGAATTTCCCTAATCGGGGTCCCTTCCTGTTACGATAAGGACGCGTGCACT",
),
],
)
def test_levenshtein(dist, a, b):
assert levenshtein(a, b) == dist
@pytest.mark.parametrize(
"a,b,fuzzy,expected",
[
("a", "a", 1, True),
("a", "a", 0, True),
("a", "a", -1, True),
("a", "ab", 1, True),
("a", "ab", 0, False),
("a", "ab", -1, True),
("ab", "ac", 1, True),
("ab", "ac", -1, True),
("abc", "cde", 4, True),
("abc", "cde", -1, False),
("abcdef", "cdefgh", 4, True),
("abcdef", "cdefgh", 3, False),
("abcdef", "cdefgh", -1, False), # default (2 for length 6)
("abcdefgh", "cdefghijk", 5, True),
("abcdefgh", "cdefghijk", 4, False),
("abcdefgh", "cdefghijk", -1, False), # default (2)
("abcdefgh", "cdefghijkl", 6, True),
("abcdefgh", "cdefghijkl", 5, False),
("abcdefgh", "cdefghijkl", -1, False), # default (2)
],
)
def test_levenshtein_compare(a, b, fuzzy, expected):
assert levenshtein_compare(a, b, fuzzy) == expected