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Update entity setting section

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Adriane Boyd 2021-03-20 11:38:55 +01:00
parent 6a9a467766
commit 0d2b723e8d
1 changed files with 18 additions and 8 deletions
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website/docs/usage/linguistic-features.md
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@ -599,18 +599,27 @@ ents = [(e.text, e.start_char, e.end_char, e.label_) for e in doc.ents]
print('Before', ents) print('Before', ents)
# The model didn't recognize "fb" as an entity :( # The model didn't recognize "fb" as an entity :(
fb_ent = Span(doc, 0, 1, label="ORG") # create a Span for the new entity # Create a span for the new entity
fb_ent = Span(doc, 0, 1, label="ORG")
# Option 1: Modify the provided entity spans, leaving the rest unmodified
doc.set_ents([fb_ent], default="unmodified")
# Option 2: Assign a complete list of ents to doc.ents
doc.ents = list(doc.ents) + [fb_ent] doc.ents = list(doc.ents) + [fb_ent]
ents = [(e.text, e.start_char, e.end_char, e.label_) for e in doc.ents] ents = [(e.text, e.start, e.end, e.label_) for e in doc.ents]
print('After', ents) print('After', ents)
# [('fb', 0, 2, 'ORG')] 🎉 # [('fb', 0, 1, 'ORG')] 🎉
``` ```
Keep in mind that you need to create a `Span` with the start and end index of Keep in mind that `Span` is initialized with the start and end **token**
the **token**, not the start and end index of the entity in the document. In indices, not the character offsets. To create a span from character offsets, use
this case, "fb" is token `(0, 1)` – but at the document level, the entity will [`Doc.char_span`](/api/doc#char_span):
have the start and end indices `(0, 2)`.
```python
fb_ent = doc.char_span(0, 2, label="ORG")
```
#### Setting entity annotations from array {#setting-from-array} #### Setting entity annotations from array {#setting-from-array}
@ -645,9 +654,10 @@ write efficient native code.
```python ```python
# cython: infer_types=True # cython: infer_types=True
from spacy.typedefs cimport attr_t
from spacy.tokens.doc cimport Doc from spacy.tokens.doc cimport Doc
cpdef set_entity(Doc doc, int start, int end, int ent_type): cpdef set_entity(Doc doc, int start, int end, attr_t ent_type):
for i in range(start, end): for i in range(start, end):
doc.c[i].ent_type = ent_type doc.c[i].ent_type = ent_type
doc.c[start].ent_iob = 3 doc.c[start].ent_iob = 3