spaCy/spacy/tests/serialize/test_serialize_kb.py
Raphael Mitsch 6aa6b86d49
Make generation of empty KnowledgeBase instances configurable in EntityLinker (#12320)
* Make empty_kb() configurable.

* Format.

* Update docs.

* Be more specific in KB serialization test.

* Update KB serialization tests. Update docs.

* Remove doc update for batched candidate generation.

* Fix serialization of subclassed KB in tests.

* Format.

* Update docstring.

* Update docstring.

* Switch from pickle to json for custom field serialization.
2023-03-01 16:02:55 +01:00

198 lines
6.9 KiB
Python

from pathlib import Path
from typing import Callable, Iterable, Any, Dict
import srsly
from spacy import util, Errors
from spacy.util import ensure_path, registry, load_model_from_config, SimpleFrozenList
from spacy.kb.kb_in_memory import InMemoryLookupKB
from spacy.vocab import Vocab
from thinc.api import Config
from ..util import make_tempdir
from numpy import zeros
def test_serialize_kb_disk(en_vocab):
# baseline assertions
kb1 = _get_dummy_kb(en_vocab)
_check_kb(kb1)
# dumping to file & loading back in
with make_tempdir() as d:
dir_path = ensure_path(d)
if not dir_path.exists():
dir_path.mkdir()
file_path = dir_path / "kb"
kb1.to_disk(str(file_path))
kb2 = InMemoryLookupKB(vocab=en_vocab, entity_vector_length=3)
kb2.from_disk(str(file_path))
# final assertions
_check_kb(kb2)
def _get_dummy_kb(vocab):
kb = InMemoryLookupKB(vocab, entity_vector_length=3)
kb.add_entity(entity="Q53", freq=33, entity_vector=[0, 5, 3])
kb.add_entity(entity="Q17", freq=2, entity_vector=[7, 1, 0])
kb.add_entity(entity="Q007", freq=7, entity_vector=[0, 0, 7])
kb.add_entity(entity="Q44", freq=342, entity_vector=[4, 4, 4])
kb.add_alias(alias="double07", entities=["Q17", "Q007"], probabilities=[0.1, 0.9])
kb.add_alias(
alias="guy",
entities=["Q53", "Q007", "Q17", "Q44"],
probabilities=[0.3, 0.3, 0.2, 0.1],
)
kb.add_alias(alias="random", entities=["Q007"], probabilities=[1.0])
return kb
def _check_kb(kb):
# check entities
assert kb.get_size_entities() == 4
for entity_string in ["Q53", "Q17", "Q007", "Q44"]:
assert entity_string in kb.get_entity_strings()
for entity_string in ["", "Q0"]:
assert entity_string not in kb.get_entity_strings()
# check aliases
assert kb.get_size_aliases() == 3
for alias_string in ["double07", "guy", "random"]:
assert alias_string in kb.get_alias_strings()
for alias_string in ["nothingness", "", "randomnoise"]:
assert alias_string not in kb.get_alias_strings()
# check candidates & probabilities
candidates = sorted(kb.get_alias_candidates("double07"), key=lambda x: x.entity_)
assert len(candidates) == 2
assert candidates[0].entity_ == "Q007"
assert 6.999 < candidates[0].entity_freq < 7.01
assert candidates[0].entity_vector == [0, 0, 7]
assert candidates[0].alias_ == "double07"
assert 0.899 < candidates[0].prior_prob < 0.901
assert candidates[1].entity_ == "Q17"
assert 1.99 < candidates[1].entity_freq < 2.01
assert candidates[1].entity_vector == [7, 1, 0]
assert candidates[1].alias_ == "double07"
assert 0.099 < candidates[1].prior_prob < 0.101
def test_serialize_subclassed_kb():
"""Check that IO of a custom KB works fine as part of an EL pipe."""
config_string = """
[nlp]
lang = "en"
pipeline = ["entity_linker"]
[components]
[components.entity_linker]
factory = "entity_linker"
[components.entity_linker.generate_empty_kb]
@misc = "kb_test.CustomEmptyKB.v1"
[initialize]
[initialize.components]
[initialize.components.entity_linker]
[initialize.components.entity_linker.kb_loader]
@misc = "kb_test.CustomKB.v1"
entity_vector_length = 342
custom_field = 666
"""
class SubInMemoryLookupKB(InMemoryLookupKB):
def __init__(self, vocab, entity_vector_length, custom_field):
super().__init__(vocab, entity_vector_length)
self.custom_field = custom_field
def to_disk(self, path, exclude: Iterable[str] = SimpleFrozenList()):
"""We overwrite InMemoryLookupKB.to_disk() to ensure that self.custom_field is stored as well."""
path = ensure_path(path)
if not path.exists():
path.mkdir(parents=True)
if not path.is_dir():
raise ValueError(Errors.E928.format(loc=path))
def serialize_custom_fields(file_path: Path) -> None:
srsly.write_json(file_path, {"custom_field": self.custom_field})
serialize = {
"contents": lambda p: self.write_contents(p),
"strings.json": lambda p: self.vocab.strings.to_disk(p),
"custom_fields": lambda p: serialize_custom_fields(p),
}
util.to_disk(path, serialize, exclude)
def from_disk(self, path, exclude: Iterable[str] = SimpleFrozenList()):
"""We overwrite InMemoryLookupKB.from_disk() to ensure that self.custom_field is loaded as well."""
path = ensure_path(path)
if not path.exists():
raise ValueError(Errors.E929.format(loc=path))
if not path.is_dir():
raise ValueError(Errors.E928.format(loc=path))
def deserialize_custom_fields(file_path: Path) -> None:
self.custom_field = srsly.read_json(file_path)["custom_field"]
deserialize: Dict[str, Callable[[Any], Any]] = {
"contents": lambda p: self.read_contents(p),
"strings.json": lambda p: self.vocab.strings.from_disk(p),
"custom_fields": lambda p: deserialize_custom_fields(p),
}
util.from_disk(path, deserialize, exclude)
@registry.misc("kb_test.CustomEmptyKB.v1")
def empty_custom_kb() -> Callable[[Vocab, int], SubInMemoryLookupKB]:
def empty_kb_factory(vocab: Vocab, entity_vector_length: int):
return SubInMemoryLookupKB(
vocab=vocab,
entity_vector_length=entity_vector_length,
custom_field=0,
)
return empty_kb_factory
@registry.misc("kb_test.CustomKB.v1")
def custom_kb(
entity_vector_length: int, custom_field: int
) -> Callable[[Vocab], SubInMemoryLookupKB]:
def custom_kb_factory(vocab):
kb = SubInMemoryLookupKB(
vocab=vocab,
entity_vector_length=entity_vector_length,
custom_field=custom_field,
)
kb.add_entity("random_entity", 0.0, zeros(entity_vector_length))
return kb
return custom_kb_factory
config = Config().from_str(config_string)
nlp = load_model_from_config(config, auto_fill=True)
nlp.initialize()
entity_linker = nlp.get_pipe("entity_linker")
assert type(entity_linker.kb) == SubInMemoryLookupKB
assert entity_linker.kb.entity_vector_length == 342
assert entity_linker.kb.custom_field == 666
# Make sure the custom KB is serialized correctly
with make_tempdir() as tmp_dir:
nlp.to_disk(tmp_dir)
nlp2 = util.load_model_from_path(tmp_dir)
entity_linker2 = nlp2.get_pipe("entity_linker")
# After IO, the KB is the standard one
assert type(entity_linker2.kb) == SubInMemoryLookupKB
assert entity_linker2.kb.entity_vector_length == 342
assert entity_linker2.kb.custom_field == 666