Data - Round 4 2020

trec.nist.gov: https://ir.nist.gov/trec-covid/data.html

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• Corpus: https://ai2-semanticscholar-cord-19.s3-us-west-2.amazonaws.com/historical_releases/cord-19_2020-06-19.tar.gz
• Topics: https://ir.nist.gov/trec-covid/data/topics-rnd4.xml
• Qrels: https://ir.nist.gov/trec-covid/data/qrels-covid_d4_j3.5-4.txt
• ir_datasets: https://ir-datasets.com/cord19.html#cord19/trec-covid/round4

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Other: Data page at allenai.org | GitHub (CORD-19) | List of valid doc-ids | Qrels page for round 4 at ir.nist.gov | Round 4 changed id map | Cumulative qrels for Round 4 documents and judgments | Chronological qrels for Round 4 documents and topics