2019-05-24 15:06:04 +03:00
|
|
|
---
|
|
|
|
|
title: Scorer
|
|
|
|
|
teaser: Compute evaluation scores
|
|
|
|
|
tag: class
|
|
|
|
|
source: spacy/scorer.py
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
The `Scorer` computes and stores evaluation scores. It's typically created by
|
|
|
|
|
[`Language.evaluate`](/api/language#evaluate).
|
|
|
|
|
|
|
|
|
|
## Scorer.\_\_init\_\_ {#init tag="method"}
|
|
|
|
|
|
|
|
|
|
Create a new `Scorer`.
|
|
|
|
|
|
|
|
|
|
> #### Example
|
|
|
|
|
>
|
|
|
|
|
> ```python
|
|
|
|
|
> from spacy.scorer import Scorer
|
|
|
|
|
>
|
|
|
|
|
> scorer = Scorer()
|
|
|
|
|
> ```
|
|
|
|
|
|
|
|
|
|
| Name | Type | Description |
|
|
|
|
|
| ------------ | -------- | ------------------------------------------------------------ |
|
|
|
|
|
| `eval_punct` | bool | Evaluate the dependency attachments to and from punctuation. |
|
|
|
|
|
| **RETURNS** | `Scorer` | The newly created object. |
|
|
|
|
|
|
|
|
|
|
## Scorer.score {#score tag="method"}
|
|
|
|
|
|
|
|
|
|
Update the evaluation scores from a single [`Doc`](/api/doc) /
|
|
|
|
|
[`GoldParse`](/api/goldparse) pair.
|
|
|
|
|
|
|
|
|
|
> #### Example
|
|
|
|
|
>
|
|
|
|
|
> ```python
|
|
|
|
|
> scorer = Scorer()
|
|
|
|
|
> scorer.score(doc, gold)
|
|
|
|
|
> ```
|
|
|
|
|
|
|
|
|
|
| Name | Type | Description |
|
|
|
|
|
| -------------- | ----------- | -------------------------------------------------------------------------------------------------------------------- |
|
|
|
|
|
| `doc` | `Doc` | The predicted annotations. |
|
|
|
|
|
| `gold` | `GoldParse` | The correct annotations. |
|
|
|
|
|
| `verbose` | bool | Print debugging information. |
|
|
|
|
|
| `punct_labels` | tuple | Dependency labels for punctuation. Used to evaluate dependency attachments to punctuation if `eval_punct` is `True`. |
|
|
|
|
|
|
|
|
|
|
## Properties
|
|
|
|
|
|
2019-07-10 12:19:28 +03:00
|
|
|
| Name | Type | Description |
|
|
|
|
|
| ---------------------------------------------- | ----- | ------------------------------------------------------------------------------------------------------------- |
|
|
|
|
|
| `token_acc` | float | Tokenization accuracy. |
|
|
|
|
|
| `tags_acc` | float | Part-of-speech tag accuracy (fine grained tags, i.e. `Token.tag`). |
|
|
|
|
|
| `uas` | float | Unlabelled dependency score. |
|
|
|
|
|
| `las` | float | Labelled dependency score. |
|
|
|
|
|
| `ents_p` | float | Named entity accuracy (precision). |
|
|
|
|
|
| `ents_r` | float | Named entity accuracy (recall). |
|
|
|
|
|
| `ents_f` | float | Named entity accuracy (F-score). |
|
|
|
|
|
| `ents_per_type` <Tag variant="new">2.1.5</Tag> | dict | Scores per entity label. Keyed by label, mapped to a dict of `p`, `r` and `f` scores. |
|
|
|
|
|
| `scores` | dict | All scores with keys `uas`, `las`, `ents_p`, `ents_r`, `ents_f`, `ents_per_type`, `tags_acc` and `token_acc`. |
|
