Datasets › ComplexWebQuestions

ComplexWebQuestions

Introduced by Alon Talmor et al. in The Web as a Knowledge-base for Answering Complex Questions18 Mar 2018 archive 2025-07-28

ComplexWebQuestions is a dataset for answering complex questions that require reasoning over multiple web snippets. It contains a large set of complex questions in natural language, and can be used in multiple ways:

  1. By interacting with a search engine;
  2. As a reading comprehension task: the authors release 12,725,989 web snippets that are relevant for the questions, and were collected during the development of their model;
  3. As a semantic parsing task: each question is paired with a SPARQL query that can be executed against Freebase to retrieve the answer.

Source: Allen Institute for AI Image Source: Talmor et al

Benchmarks archive 2025-07-28

All 2 leaderboards 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)PaperCode
Knowledge Base Question Answering ComplexWebQuestions ChatKBQA Accuracy 76.8 ChatKBQA: A Generate-then-Retrieve Framework for... lhrlab/chatkbqa 6 Compare
Question Answering ComplexWebQuestions TOME-2 EM 47.7 Mention Memory: incorporating textual knowledge into... google-research/language 1 Compare

Papers archive 2025-07-28

5 shown of 5 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 62. The Syntology column is from Syntology's graph (read 2026-09-24), stated per sample; it is not part of any archive number.

Dataset loaders archive 2025-07-28

1 loader as listed in the archive; links are outbound and not re-checked here.

Tasks archive 2025-07-28

License archive 2025-07-28

Unknown

Modalities archive 2025-07-28

Languages archive 2025-07-28

Variants archive 2025-07-28

  • ComplexWebQuestions

1 variant name, as the archive lists them.

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