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---
license: apache-2.0
task_categories:
- text-retrieval
language:
- zh
size_categories:
- 1M<n<10M
---
# T2Ranking

T2Ranking is a large-scale Chinese benchmark for passage ranking. The details about T2Ranking are elaborated in [this paper](https://github.com/THUIR/T2Ranking).

The download links and data formats are presented in the following table.

| Description                                           | Filename                                                                                                                | File size |                        Num Records | Format                                                         |
|-------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|----------:|-----------------------------------:|----------------------------------------------------------------|
| Collection                                | collection.tsv                             |    3.5 GB |                         2,303,643  | tsv: pid, passage |
| Queries     Train                          | queries.train.tsv                                 |   9.8 MB |                         258,042  | tsv: qid, query |
| Qrels Train                               | qrels.train.tsv                                 |   29 MB |                           1,613,421  | TREC qrels format |
<!-- | Qrels Dev                                 | qrels.dev.tsv                                    |    13 MB |                            781,949  | TREC qrels format |
| Queries     Dev                          | queries.dev.tsv                           |   1.9 MB |                         49,662  | tsv: qid, query |
| Qrels Retrieval                               | retrieval_qrels.tsv                                |   14 MB |                           980,060  | tsv:qid, pid | -->