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metadata
pretty_name: AVeriTeC knowledge store, extraction repaired (dev)
language:
  - en
license: other
license_name: averitec-derived
license_link: https://fever.ai/dataset/averitec.html
task_categories:
  - text-retrieval
tags:
  - fact-checking
  - evidence-retrieval
  - averitec
  - fever
size_categories:
  - 100K<n<1M
extra_gated_prompt: >-
  This corpus contains text extracted from third-party web pages, including news
  articles. It is released for research on evidence retrieval for fact-checking.
  By requesting access you agree to use it for research purposes, to respect the
  rights of the original publishers, and not to redistribute the extracted text.
extra_gated_fields:
  Name: text
  Affiliation: text
  Intended use: text

AVeriTeC knowledge store, with extraction repaired (dev split)

The AVeriTeC dev knowledge store with its empty documents re-scraped.

In the original store, 21.5% of documents have an empty url2text: the scraper ran, got nothing back, and the empty result was indexed anyway. Roughly a third of gold evidence documents were among them, so retrieval results on that store are bounded by a ceiling unrelated to the method.

documents
total 506,640
empty before 109,151 (21.5%)
empty after 39,378 (7.8%)
recovered 69,773 (63.9%)

Using it

A drop-in replacement for the original split directory — same file names, same JSON Lines format, same records in the same order.

dev/<claim_id>.json    one record per document: claim_id, query, type,
                       url, url2text (a list of sentences)
MANIFEST.json          per-claim document and empty counts
import json
records = [json.loads(line) for line in open("dev/2.json")]

Documents that already had text are byte-identical to the original, so a comparison against the original store differs only by recovered text.

Limitations

Recovery tops out near 64%: 39,378 documents are still empty, mostly publishers that block scrapers. Some recoveries are page fragments rather than articles. Repairing text does not by itself make evidence retrievable.

Provenance

URLs, document lists and structure come from the AVeriTeC shared task, whose terms govern that material. The recovered text was fetched from publishers' own pages and ordinary copyright applies to it, exactly as for the original store. Access is gated for that reason. Please cite AVeriTeC.