task_categories:text-retrieval region:us
---
pretty_name: '`car/v2.0`'
viewer: false
source_datasets: []
task_categories:
- text-retrieval
---

# Dataset Card for `car/v2.0`

The `car/v2.0` dataset, provided by the [ir-datasets](https://ir-datasets.com/) package.
For more information about the dataset, see the [documentation](https://ir-datasets.com/car#car/v2.0).

# Data

This dataset provides:
 - `docs` (documents, i.e., the corpus); count=29,794,697


## Usage

```python
from datasets import load_dataset

docs = load_dataset('irds/car_v2.0', 'docs')
for record in docs:
    record # {'doc_id': ..., 'text': ...}

```

Note that calling `load_dataset` will download the dataset (or provide access instructions when it's not public) and make a copy of the
data in 🤗 Dataset format.

## Citation Information

```
@article{Dietz2017Car,
  title={{TREC CAR}: A Data Set for Complex Answer Retrieval},
  author={Laura Dietz and Ben Gamari},
  year={2017},
  note={Version 1.5},
  url={http://trec-car.cs.unh.edu}
}
```
