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Fix ent_iob tags in doc.merge to avoid inconsistent sequences

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This commit is contained in:
Matthew Honnibal 2018-03-26 07:16:06 +02:00
parent 95fa89c4b8
commit 0b375d50c8
1 changed files with 7 additions and 0 deletions
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7
spacy/tokens/doc.pyx
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@ -949,6 +949,13 @@ cdef class Doc:
self.vocab.morphology.assign_tag(token, attr_value)
else:
Token.set_struct_attr(token, attr_name, attr_value)
# Make sure ent_iob remains consistent
if self.c[end].ent_iob == 1 and token.ent_iob in (0, 2):
if token.ent_type == self.c[end].ent_type:
token.ent_iob = 3
else:
# If they're not the same entity type, let them be two entities
self.c[end].ent_iob = 3
# Begin by setting all the head indices to absolute token positions
# This is easier to work with for now than the offsets
# Before thinking of something simpler, beware the case where a