# c4_wsrs

<br />

- **Description**:

A medical abbreviation expansion dataset which applies web-scale reverse
substitution (wsrs) to the C4 dataset, which is a colossal, cleaned version of
Common Crawl's web crawl corpus.

The original source is the Common Crawl dataset: <https://commoncrawl.org>

- **Config description**: Default C4-WSRS dataset.

- **Homepage** :
  <https://github.com/google-research/google-research/tree/master/deciphering_clinical_abbreviations>

- **Source code** :
  [`tfds.text.c4_wsrs.C4WSRS`](https://github.com/tensorflow/datasets/tree/master/tensorflow_datasets/text/c4_wsrs/c4_wsrs.py)

- **Versions**:

  - **`1.0.0`** (default): Initial release.
- **Download size** : `143.01 KiB`

- **Dataset size** : `5.84 GiB`

- **Auto-cached**
  ([documentation](https://www.tensorflow.org/datasets/performances#auto-caching)):
  No

- **Splits**:

| Split | Examples |
|---|---|
| `'train'` | 9,575,852 |
| `'validation'` | 991,422 |

- **Feature structure**:

    FeaturesDict({
        'abbreviated_snippet': Text(shape=(), dtype=string),
        'original_snippet': Text(shape=(), dtype=string),
    })

- **Feature documentation**:

| Feature | Class | Shape | Dtype | Description |
|---|---|---|---|---|
|   | FeaturesDict |   |   |   |
| abbreviated_snippet | Text |   | string |   |
| original_snippet | Text |   | string |   |

- **Supervised keys** (See
  [`as_supervised` doc](https://www.tensorflow.org/datasets/api_docs/python/tfds/load#args)):
  `None`

- **Figure**
  ([tfds.show_examples](https://www.tensorflow.org/datasets/api_docs/python/tfds/visualization/show_examples)):
  Not supported.

- **Examples**
  ([tfds.as_dataframe](https://www.tensorflow.org/datasets/api_docs/python/tfds/as_dataframe)):

<button id="displaydataframe">Display examples...</button>

- **Citation**:

## c4_wsrs/default (default config)