Dataset Card for FactCheck

📝 Dataset Summary

FactCheck is an benchmark for evaluating LLMs on knowledge graph fact verification. It combines structured facts from YAGO, DBpedia, and FactBench with web-extracted evidence including questions, summaries, full text, and metadata. The dataset contains examples designed for sentence-level fact-checking and QA tasks.

📚 Supported Tasks

• Question Answering: Answer fact-checking questions derived from KG triples.
• Benchmarking LLMs

🗣 Languages

• English (en)
• Maybe the dataset contains Google Search Engine Results in other language too

🧱 Dataset Structure

Each example includes metadata fields, such as:

Field	Type	Description
identifier	string	Unique ID per example
dataset	string	Source KG: YAGO, DBpedia, or FactBench
question	string	Question derived from the fact
rank	int	Relevance rank of question/page
url, read_more_link	string	Web source links
title, summary, text	string	Extracted HTML content
images, movies	[string]	Media assets
keywords, meta_keywords, tags, authors, publish_date, meta_description, meta_site_name, top_image, meta_img, canonical_link	string or [string]	Additional metadata

🚦 Data Splits

Only a train split is available, aggregated across 13 source files.

🛠 Dataset Creation

Curation Rationale

Constructed to benchmark LLM performance on structured KG verification, with and without external evidence.

Source Data

• FactBench: ~2,800 facts
• YAGO: ~1,400 facts
• DBpedia: ~9,300 facts
• Web-scraped evidence using Google SERP for contextual support.

Processing Steps

• Facts retrieved and paired with search queries.
• Web pages were scraped, parsed, cleaned, and stored.
• Metadata normalized across all sources.
• Optional ranking and filtering applied to prioritize high-relevance evidence.

Provenance

Compiled by the FactCheck‑AI team, anchored in public sources (KGs + web content).

⚠️ Personal & Sensitive Information

The FactCheck dataset does not contain personal or private data. All information is sourced from publicly accessible knowledge graphs (YAGO, DBpedia, FactBench) and web-extracted evidence. However, if you identify any content that you believe may be in conflict with privacy standards or requires further review, please contact us. We are committed to addressing such concerns promptly and making necessary adjustments.

🧑‍💻 Dataset Curators

FactCheck‑AI Team:

• Farzad Shami - University of Padua - [email protected]
• Stefano Marchesin - University of Padua - [email protected]
• Gianmaria Silvello - University of Padua - [email protected]

✉️ Contact

For issues or questions, please raise a GitHub issue on this repo.

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✅ SQL Queries for Interactive Analysis

Here are useful queries users can run in the Hugging Face SQL Console to analyze this dataset:

-- 1. Count of rows per source KG
SELECT dataset, COUNT(*) AS count
FROM train
GROUP BY dataset
ORDER BY count DESC;

-- 2. Daily entry counts based on publish_date
SELECT publish_date, COUNT(*) AS count
FROM train
GROUP BY publish_date
ORDER BY publish_date;

-- 3. Count of missing titles or summaries
SELECT
  SUM(CASE WHEN title IS NULL OR title = '' THEN 1 ELSE 0 END) AS missing_title,
  SUM(CASE WHEN summary IS NULL OR summary = '' THEN 1 ELSE 0 END) AS missing_summary
FROM train;

-- 4. Top 5 most frequent host domains
SELECT
  SUBSTR(url, INSTR(url, '://')+3, INSTR(SUBSTR(url, INSTR(url,'://')+3),'/')-1) AS domain,
  COUNT(*) AS count
FROM train
GROUP BY domain
ORDER BY count DESC
LIMIT 5;

-- 5. Average number of keywords per example
SELECT AVG(array_length(keywords, 1)) AS avg_keywords
FROM train;

These queries offer insights into data coverage, quality, and structure.

Paper: https://arxiv.org/abs/2602.10748