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37 lines
2.5 KiB
Plaintext
37 lines
2.5 KiB
Plaintext
A named entity is a "real-world object" that's assigned a name – for example, a
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person, a country, a product or a book title. spaCy can **recognize various
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types of named entities in a document, by asking the model for a prediction**.
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Because models are statistical and strongly depend on the examples they were
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trained on, this doesn't always work _perfectly_ and might need some tuning
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later, depending on your use case.
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Named entities are available as the `ents` property of a `Doc`:
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```python {executable="true"}
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import spacy
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nlp = spacy.load("en_core_web_sm")
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doc = nlp("Apple is looking at buying U.K. startup for $1 billion")
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for ent in doc.ents:
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print(ent.text, ent.start_char, ent.end_char, ent.label_)
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```
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> - **Text:** The original entity text.
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> - **Start:** Index of start of entity in the `Doc`.
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> - **End:** Index of end of entity in the `Doc`.
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> - **Label:** Entity label, i.e. type.
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| Text | Start | End | Label | Description |
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| ----------- | :---: | :-: | ------- | ---------------------------------------------------- |
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| Apple | 0 | 5 | `ORG` | Companies, agencies, institutions. |
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| U.K. | 27 | 31 | `GPE` | Geopolitical entity, i.e. countries, cities, states. |
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| \$1 billion | 44 | 54 | `MONEY` | Monetary values, including unit. |
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Using spaCy's built-in [displaCy visualizer](/usage/visualizers), here's what
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our example sentence and its named entities look like:
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<Standalone height={120}>
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<div style={{lineHeight: 2.5, fontFamily: "-apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'", fontSize: 18}}><mark style={{ background: '#7aecec', padding: '0.45em 0.6em', margin: '0 0.25em', lineHeight: 1, borderRadius: '0.35em'}}>Apple <span style={{ fontSize: '0.8em', fontWeight: 'bold', lineHeight: 1, borderRadius: '0.35em', marginLeft: '0.5rem'}}>ORG</span></mark> is looking at buying <mark style={{ background: '#feca74', padding: '0.45em 0.6em', margin: '0 0.25em', lineHeight: 1, borderRadius: '0.35em'}}>U.K. <span style={{ fontSize: '0.8em', fontWeight: 'bold', lineHeight: 1, borderRadius: '0.35em', marginLeft: '0.5rem'}}>GPE</span></mark> startup for <mark style={{ background: '#e4e7d2', padding: '0.45em 0.6em', margin: '0 0.25em', lineHeight: 1, borderRadius: '0.35em'}}>$1 billion <span style={{ fontSize: '0.8em', fontWeight: 'bold', lineHeight: 1, borderRadius: '0.35em', marginLeft: '0.5rem'}}>MONEY</span></mark></div>
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</Standalone>
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