spaCy/spacy/tests/regression/_test_issue2800.py

26 lines
810 B
Python

# coding: utf-8
from __future__ import unicode_literals
import random
from spacy.lang.en import English
def test_train_with_many_entity_types():
"""Test issue that arises when too many labels are added to NER model.
NB: currently causes segfault!
"""
train_data = []
train_data.extend([("One sentence", {"entities": []})])
entity_types = [str(i) for i in range(1000)]
nlp = English(pipeline=[])
ner = nlp.create_pipe("ner")
nlp.add_pipe(ner)
for entity_type in list(entity_types):
ner.add_label(entity_type)
optimizer = nlp.begin_training()
for i in range(20):
losses = {}
random.shuffle(train_data)
for statement, entities in train_data:
nlp.update([statement], [entities], sgd=optimizer, losses=losses, drop=0.5)