Datasets › QUASAR
QUASAR (QUestion Answering by Search And Reading)
The Question Answering by Search And Reading (QUASAR) is a large-scale dataset consisting of QUASAR-S and QUASAR-T. Each of these datasets is built to focus on evaluating systems devised to understand a natural language query, a large corpus of texts and to extract an answer to the question from the corpus. Specifically, QUASAR-S comprises 37,012 fill-in-the-gaps questions that are collected from the popular website Stack Overflow using entity tags. The QUASAR-T dataset contains 43,012 open-domain questions collected from various internet sources. The candidate documents for each question in this dataset are retrieved from an Apache Lucene based search engine built on top of the ClueWeb09 dataset.
Source: MRNN: A Multi-Resolution Neural Network with Duplex Attention for Document Retrieval in the Context of Question Answering Image Source: https://arxiv.org/pdf/1707.03904.pdf
Benchmarks archive 2025-07-28
All 1 leaderboard whose dataset resolves to this page shown (sort by any header). "First row" is the archive's own first row at snapshot, in the archive's row order; nothing here re-ranks and metric direction is not asserted.
| First row (archive order) | Paper | Code | ||||
|---|---|---|---|---|---|---|
| Open-Domain Question Answering | Quasar | Evidence Aggregation via R^3 Re-Ranking EM (Quasar-T) 42.3 | Evidence Aggregation for Answer Re-Ranking in... | shuohangwang/mprc | 6 | Compare |
Papers archive 2025-07-28
6 shown of 6 papers with a leaderboard row on this dataset's benchmarks, newest first. The archive's own "papers using this dataset" list was never published, so this is the benchmark-backed subset; the archive's count for this dataset is 47. The Syntology column is from Syntology's graph (read 2026-09-24), stated per sample; it is not part of any archive number.
| Date | Samples run Syntology | |||
|---|---|---|---|---|
| Densely Connected Attention Propagation for Reading Comprehension | 2 | 1 | 10 Nov 2018 | not harvested |
| Denoising Distantly Supervised Open-Domain Question Answering | 1 | 1 | 1 Jul 2018 | not harvested |
| Evidence Aggregation for Answer Re-Ranking in Open-Domain Question Answering | 1 | 1 | 14 Nov 2017 | ran 7 of 8 samples (1 unverified) |
| R³: Reinforced Reader-Ranker for Open-Domain Question Answering | 1 | 1 | 31 Aug 2017 | not harvested |
| Bidirectional Attention Flow for Machine Comprehension | 27 | 1 | 5 Nov 2016 | ran 8 of 11 samples (3 unverified; 7 pointer-only for licence) |
| Gated-Attention Readers for Text Comprehension | 4 | 1 | 5 Jun 2016 | ran 1 of 3 samples (2 unverified) |
Dataset loaders archive 2025-07-28
2 loaders as listed in the archive; links are outbound and not re-checked here.
Tasks archive 2025-07-28
License archive 2025-07-28
Modalities archive 2025-07-28
Languages archive 2025-07-28
Variants archive 2025-07-28
- Quasar
- QUASAR
2 variant names, as the archive lists them.
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