Convert nfcorpus dataset to Parquet (#6)

- Convert nfcorpus dataset to Parquet (d98637d5f897d400f4878b61ec381bee828dde94)
- Align README with approved BEIR template (2bd517213dba6a15ee60c90195f0123612d09ddf)

README.md

@@ -45,10 +45,10 @@ dataset_info:
     dtype: string
   splits:
   - name: corpus
-    num_bytes: 5856698
+    num_bytes: 3157570
     num_examples: 3633
-  download_size: 3193804
-  dataset_size: 5856698
+  download_size: 3157570
+  dataset_size: 3157570
 - config_name: queries
   features:
   - name: _id
@@ -59,49 +59,25 @@ dataset_info:
     dtype: string
   splits:
   - name: queries
-    num_bytes: 141303
+    num_bytes: 80929
     num_examples: 3237
-  download_size: 83904
-  dataset_size: 141303
+  download_size: 80929
+  dataset_size: 80929
 ---
 
 # Dataset Card for BEIR Benchmark
 
-## Table of Contents
-- [Dataset Description](#dataset-description)
-  - [Dataset Summary](#dataset-summary)
-  - [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards)
-  - [Languages](#languages)
-- [Dataset Structure](#dataset-structure)
-  - [Data Instances](#data-instances)
-  - [Data Fields](#data-fields)
-  - [Data Splits](#data-splits)
-- [Dataset Creation](#dataset-creation)
-  - [Curation Rationale](#curation-rationale)
-  - [Source Data](#source-data)
-  - [Annotations](#annotations)
-  - [Personal and Sensitive Information](#personal-and-sensitive-information)
-- [Considerations for Using the Data](#considerations-for-using-the-data)
-  - [Social Impact of Dataset](#social-impact-of-dataset)
-  - [Discussion of Biases](#discussion-of-biases)
-  - [Other Known Limitations](#other-known-limitations)
-- [Additional Information](#additional-information)
-  - [Dataset Curators](#dataset-curators)
-  - [Licensing Information](#licensing-information)
-  - [Citation Information](#citation-information)
-  - [Contributions](#contributions)
-
 ## Dataset Description
 
-- **Homepage:** https://github.com/UKPLab/beir
-- **Repository:** https://github.com/UKPLab/beir
+- **Homepage:** https://beir.ai
+- **Repository:** https://beir.ai
 - **Paper:** https://openreview.net/forum?id=wCu6T5xFjeJ
 - **Leaderboard:** https://docs.google.com/spreadsheets/d/1L8aACyPaXrL8iEelJLGqlMqXKPX2oSP_R10pZoy77Ns
 - **Point of Contact:** nandan.thakur@uwaterloo.ca
 
 ### Dataset Summary
 
-BEIR is a heterogeneous benchmark that has been built from 18 diverse datasets representing 9 information retrieval tasks:
+BEIR is a heterogeneous benchmark built from 18 diverse datasets representing 9 information retrieval tasks.
 
 - Fact-checking: [FEVER](http://fever.ai), [Climate-FEVER](http://climatefever.ai), [SciFact](https://github.com/allenai/scifact)
 - Question-Answering: [NQ](https://ai.google.com/research/NaturalQuestions), [HotpotQA](https://hotpotqa.github.io), [FiQA-2018](https://sites.google.com/view/fiqa/)
@@ -113,18 +89,7 @@ BEIR is a heterogeneous benchmark that has been built from 18 diverse datasets r
 - Tweet Retrieval: [Signal-1M](https://research.signal-ai.com/datasets/signal1m-tweetir.html)
 - Entity Retrieval: [DBPedia](https://github.com/iai-group/DBpedia-Entity/)
 
-All these datasets have been preprocessed and can be used for your experiments.
-
-
-```python
-
-```
-
-### Supported Tasks and Leaderboards
-
-The dataset supports a leaderboard that evaluates models against task-specific metrics such as F1 or EM, as well as their ability to retrieve supporting information from Wikipedia.
-
-The current best performing models can be found [here](https://eval.ai/web/challenges/challenge-page/689/leaderboard/).
+> **This `nfcorpus` subset is the Argument Retrieval task within BEIR.**
 
 ### Languages
 
@@ -132,19 +97,25 @@ All tasks are in English (`en`).
 
 ## Dataset Structure
 
-All BEIR datasets must contain a corpus, queries and qrels (relevance judgments file). They must be in the following format:
-- `corpus` file: a `.jsonl` file (jsonlines) that contains a list of dictionaries, each with three fields `_id` with unique document identifier, `title` with document title (optional) and `text` with document paragraph or passage. For example: `{"_id": "doc1", "title": "Albert Einstein", "text": "Albert Einstein was a German-born...."}`
-- `queries` file: a `.jsonl` file (jsonlines) that contains a list of dictionaries, each with two fields `_id` with unique query identifier and `text` with query text. For example: `{"_id": "q1", "text": "Who developed the mass-energy equivalence formula?"}`
-- `qrels` file: a `.tsv` file (tab-seperated) that contains three columns, i.e. the `query-id`, `corpus-id` and `score` in this order. Keep 1st row as header. For example: `q1 doc1 1`
+This dataset uses the standard BEIR retrieval layout and includes:
+
+- `corpus`: one row per document with `_id`, `title`, `text`
+- `queries`: one row per query with `_id`, `title`, `text`
+
+### Data Fields
+
+- `_id` (`string`): unique identifier
+- `title` (`string`): title (empty string when unavailable)
+- `text` (`string`): document/query text
 
 ### Data Instances
 
-A high level example of any beir dataset:
+A high level example of any BEIR dataset:
 
 ```python
 corpus = {
     "doc1" : {
-        "title": "Albert Einstein", 
+        "title": "Albert Einstein",
         "text": "Albert Einstein was a German-born theoretical physicist. who developed the theory of relativity, \
                  one of the two pillars of modern physics (alongside quantum mechanics). His work is also known for \
                  its influence on the philosophy of science. He is best known to the general public for his mass–energy \
@@ -171,111 +142,42 @@ qrels = {
 }
 ```
 
-### Data Fields
-
-Examples from all configurations have the following features:
-
-### Corpus
-- `corpus`: a `dict` feature representing the document title and passage text, made up of:
-    - `_id`: a `string` feature representing the unique document id
-        - `title`: a `string` feature, denoting the title of the document.
-        - `text`: a `string` feature, denoting the text of the document.
-
-### Queries
-- `queries`: a `dict` feature representing the query, made up of:
-    - `_id`: a `string` feature representing the unique query id
-    - `text`: a `string` feature, denoting the text of the query.
-
-### Qrels
-- `qrels`: a `dict` feature representing the query document relevance judgements, made up of:
-    - `_id`: a `string` feature representing the query id
-        - `_id`: a `string` feature, denoting the document id.
-        - `score`: a `int32` feature, denoting the relevance judgement between query and document.
-
-
-### Data Splits
-
-| Dataset   | Website| BEIR-Name | Type | Queries  | Corpus | Rel D/Q | Down-load | md5 |
-| -------- | -----| ---------| --------- | ----------- | ---------| ---------| :----------: | :------:|
-| MSMARCO    | [Homepage](https://microsoft.github.io/msmarco/)| ``msmarco`` | ``train``<br>``dev``<br>``test``|  6,980   |  8.84M     |    1.1 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/msmarco.zip) | ``444067daf65d982533ea17ebd59501e4`` |
-| TREC-COVID |  [Homepage](https://ir.nist.gov/covidSubmit/index.html)| ``trec-covid``| ``test``| 50|  171K| 493.5 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/trec-covid.zip) | ``ce62140cb23feb9becf6270d0d1fe6d1`` |
-| NFCorpus   | [Homepage](https://www.cl.uni-heidelberg.de/statnlpgroup/nfcorpus/) | ``nfcorpus`` | ``train``<br>``dev``<br>``test``|  323     |  3.6K     |  38.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/nfcorpus.zip) | ``a89dba18a62ef92f7d323ec890a0d38d`` |
-| BioASQ     | [Homepage](http://bioasq.org) | ``bioasq``|  ``train``<br>``test`` | 500    |  14.91M    |  8.05 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#2-bioasq) |
-| NQ         | [Homepage](https://ai.google.com/research/NaturalQuestions) | ``nq``| ``train``<br>``test``| 3,452   |  2.68M  |  1.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/nq.zip) | ``d4d3d2e48787a744b6f6e691ff534307`` |
-| HotpotQA   | [Homepage](https://hotpotqa.github.io) | ``hotpotqa``| ``train``<br>``dev``<br>``test``|  7,405   |  5.23M  |  2.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/hotpotqa.zip)  | ``f412724f78b0d91183a0e86805e16114`` |
-| FiQA-2018  | [Homepage](https://sites.google.com/view/fiqa/) | ``fiqa`` | ``train``<br>``dev``<br>``test``|  648     |  57K    |  2.6 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/fiqa.zip)  | ``17918ed23cd04fb15047f73e6c3bd9d9`` |
-| Signal-1M(RT) | [Homepage](https://research.signal-ai.com/datasets/signal1m-tweetir.html)| ``signal1m`` | ``test``| 97   |  2.86M  |  19.6 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#4-signal-1m) |
-| TREC-NEWS  | [Homepage](https://trec.nist.gov/data/news2019.html) | ``trec-news``    | ``test``| 57    |  595K    |  19.6 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#1-trec-news) |
-| ArguAna    | [Homepage](http://argumentation.bplaced.net/arguana/data) | ``arguana``| ``test`` | 1,406     |  8.67K    |  1.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/arguana.zip)  | ``8ad3e3c2a5867cdced806d6503f29b99`` |
-| Touche-2020| [Homepage](https://webis.de/events/touche-20/shared-task-1.html) | ``webis-touche2020``| ``test``| 49     |  382K    |  19.0 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/webis-touche2020.zip) | ``46f650ba5a527fc69e0a6521c5a23563`` |
-| CQADupstack| [Homepage](http://nlp.cis.unimelb.edu.au/resources/cqadupstack/) | ``cqadupstack``| ``test``| 13,145 |  457K  |  1.4 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/cqadupstack.zip) | ``4e41456d7df8ee7760a7f866133bda78`` |
-| Quora| [Homepage](https://www.quora.com/q/quoradata/First-Quora-Dataset-Release-Question-Pairs) | ``quora``| ``dev``<br>``test``| 10,000     |  523K    |  1.6 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/quora.zip) | ``18fb154900ba42a600f84b839c173167`` |
-| DBPedia | [Homepage](https://github.com/iai-group/DBpedia-Entity/) | ``dbpedia-entity``| ``dev``<br>``test``| 400    |  4.63M    |  38.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/dbpedia-entity.zip) | ``c2a39eb420a3164af735795df012ac2c`` |
-| SCIDOCS| [Homepage](https://allenai.org/data/scidocs) | ``scidocs``| ``test``| 1,000     |  25K    |  4.9 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/scidocs.zip) | ``38121350fc3a4d2f48850f6aff52e4a9`` |
-| FEVER | [Homepage](http://fever.ai) | ``fever``| ``train``<br>``dev``<br>``test``|  6,666     |  5.42M    |  1.2|  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/fever.zip)  | ``5a818580227bfb4b35bb6fa46d9b6c03`` |
-| Climate-FEVER| [Homepage](http://climatefever.ai) | ``climate-fever``|``test``|  1,535     |  5.42M |  3.0 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/climate-fever.zip)  | ``8b66f0a9126c521bae2bde127b4dc99d`` |
-| SciFact| [Homepage](https://github.com/allenai/scifact) | ``scifact``| ``train``<br>``test``|  300     |  5K    |  1.1 |  [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/scifact.zip)  | ``5f7d1de60b170fc8027bb7898e2efca1`` |
-| Robust04 | [Homepage](https://trec.nist.gov/data/robust/04.guidelines.html) | ``robust04``| ``test``| 249  |  528K  |  69.9 |  No  |  [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#3-robust04)  |
-
-
-## Dataset Creation
-
-### Curation Rationale
-
-[Needs More Information]
-
-### Source Data
-
-#### Initial Data Collection and Normalization
-
-[Needs More Information]
-
-#### Who are the source language producers?
-
-[Needs More Information]
-
-### Annotations
-
-#### Annotation process
-
-[Needs More Information]
-
-#### Who are the annotators?
-
-[Needs More Information]
-
-### Personal and Sensitive Information
-
-[Needs More Information]
-
-## Considerations for Using the Data
-
-### Social Impact of Dataset
-
-[Needs More Information]
-
-### Discussion of Biases
-
-[Needs More Information]
-
-### Other Known Limitations
-
-[Needs More Information]
-
-## Additional Information
-
-### Dataset Curators
-
-[Needs More Information]
-
-### Licensing Information
-
-[Needs More Information]
-
-### Citation Information
-
-Cite as:
-```
+### NFCorpus Data Splits
+
+| Subset | Split | Rows |
+| --- | --- | ---: |
+| corpus | corpus | 3,633 |
+| queries | queries | 3,237 |
+
+### BEIR Direct Download
+
+You can also download BEIR datasets directly (without loading through Hugging Face datasets) using the links below.
+
+| Dataset | Website | BEIR-Name | Type | Queries | Corpus | Rel D/Q | Down-load | md5 |
+| --- | --- | --- | --- | ---: | ---: | ---: | --- | --- |
+| MSMARCO | [Homepage](https://microsoft.github.io/msmarco/) | `msmarco` | `train` `dev` `test` | 6,980 | 8.84M | 1.1 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/msmarco.zip) | `444067daf65d982533ea17ebd59501e4` |
+| TREC-COVID | [Homepage](https://ir.nist.gov/covidSubmit/index.html) | `trec-covid` | `test` | 50 | 171K | 493.5 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/trec-covid.zip) | `ce62140cb23feb9becf6270d0d1fe6d1` |
+| NFCorpus | [Homepage](https://www.cl.uni-heidelberg.de/statnlpgroup/nfcorpus/) | `nfcorpus` | `train` `dev` `test` | 323 | 3.6K | 38.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/nfcorpus.zip) | `a89dba18a62ef92f7d323ec890a0d38d` |
+| BioASQ | [Homepage](http://bioasq.org) | `bioasq` | `train` `test` | 500 | 14.91M | 8.05 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#2-bioasq) |
+| NQ | [Homepage](https://ai.google.com/research/NaturalQuestions) | `nq` | `train` `test` | 3,452 | 2.68M | 1.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/nq.zip) | `d4d3d2e48787a744b6f6e691ff534307` |
+| HotpotQA | [Homepage](https://hotpotqa.github.io) | `hotpotqa` | `train` `dev` `test` | 7,405 | 5.23M | 2.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/hotpotqa.zip) | `f412724f78b0d91183a0e86805e16114` |
+| FiQA-2018 | [Homepage](https://sites.google.com/view/fiqa/) | `fiqa` | `train` `dev` `test` | 648 | 57K | 2.6 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/fiqa.zip) | `17918ed23cd04fb15047f73e6c3bd9d9` |
+| Signal-1M(RT) | [Homepage](https://research.signal-ai.com/datasets/signal1m-tweetir.html) | `signal1m` | `test` | 97 | 2.86M | 19.6 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#4-signal-1m) |
+| TREC-NEWS | [Homepage](https://trec.nist.gov/data/news2019.html) | `trec-news` | `test` | 57 | 595K | 19.6 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#1-trec-news) |
+| ArguAna | [Homepage](http://argumentation.bplaced.net/arguana/data) | `arguana` | `test` | 1,406 | 8.67K | 1.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/arguana.zip) | `8ad3e3c2a5867cdced806d6503f29b99` |
+| Touche-2020 | [Homepage](https://webis.de/events/touche-20/shared-task-1.html) | `webis-touche2020` | `test` | 49 | 382K | 19.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/webis-touche2020.zip) | `46f650ba5a527fc69e0a6521c5a23563` |
+| CQADupstack | [Homepage](http://nlp.cis.unimelb.edu.au/resources/cqadupstack/) | `cqadupstack` | `test` | 13,145 | 457K | 1.4 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/cqadupstack.zip) | `4e41456d7df8ee7760a7f866133bda78` |
+| Quora | [Homepage](https://www.quora.com/q/quoradata/First-Quora-Dataset-Release-Question-Pairs) | `quora` | `dev` `test` | 10,000 | 523K | 1.6 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/quora.zip) | `18fb154900ba42a600f84b839c173167` |
+| DBPedia | [Homepage](https://github.com/iai-group/DBpedia-Entity/) | `dbpedia-entity` | `dev` `test` | 400 | 4.63M | 38.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/dbpedia-entity.zip) | `c2a39eb420a3164af735795df012ac2c` |
+| SCIDOCS | [Homepage](https://allenai.org/data/scidocs) | `scidocs` | `test` | 1,000 | 25K | 4.9 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/scidocs.zip) | `38121350fc3a4d2f48850f6aff52e4a9` |
+| FEVER | [Homepage](http://fever.ai) | `fever` | `train` `dev` `test` | 6,666 | 5.42M | 1.2 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/fever.zip) | `5a818580227bfb4b35bb6fa46d9b6c03` |
+| Climate-FEVER | [Homepage](http://climatefever.ai) | `climate-fever` | `test` | 1,535 | 5.42M | 3.0 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/climate-fever.zip) | `8b66f0a9126c521bae2bde127b4dc99d` |
+| SciFact | [Homepage](https://github.com/allenai/scifact) | `scifact` | `train` `test` | 300 | 5K | 1.1 | [Link](https://public.ukp.informatik.tu-darmstadt.de/thakur/BEIR/datasets/scifact.zip) | `5f7d1de60b170fc8027bb7898e2efca1` |
+| Robust04 | [Homepage](https://trec.nist.gov/data/robust/04.guidelines.html) | `robust04` | `test` | 249 | 528K | 69.9 | No | [How to Reproduce?](https://github.com/UKPLab/beir/blob/main/examples/dataset#3-robust04) |
+
+## Citation Information
+
+```bibtex
 @inproceedings{
 thakur2021beir,
 title={{BEIR}: A Heterogeneous Benchmark for Zero-shot Evaluation of Information Retrieval Models},
@@ -285,7 +187,3 @@ year={2021},
 url={https://openreview.net/forum?id=wCu6T5xFjeJ}
 }
 ```
-
-### Contributions
-
-Thanks to [@Nthakur20](https://github.com/Nthakur20) for adding this dataset.

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