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GLAM Extraction Benchmark — POC (silver)
A proof-of-concept for an open GLAM document-extraction benchmark (index cards + registration forms). Each item = a card/form image + a target JSON Schema + a target output JSON.
Silver labels, not a finished benchmark. Outputs are NuExtract-3 zero-shot, reviewed/corrected by one LLM reviewer agent — not human-verified. NuExtract is therefore advantaged. Treat scores as illustrative; this exists to show the shape and seed a real, human-verified version.
Leaderboard demo: https://huggingface.co/spaces/davanstrien/glam-extract-leaderboard · Code: https://github.com/davanstrien/glam-extract-bench
Columns
image · card_type · source · license · source_url · target_schema (JSON Schema) · target_schema_nuextract · silver_nuextract · silver_gold · gold_status · item_quality · schema_verdict · output_accuracy · uncertain_fields · review_notes
Source licenses (checked 2026-06-29)
| source | license |
|---|---|
biglam/bpl-card-catalog (BPL bibliographic) |
CC0-1.0 |
biglam/rubenstein-manuscript-catalog |
CC0-1.0 |
biglam/index-cards-parisian-parliamentarians |
CC-BY-4.0 (attribute) |
| Library of Congress copyright forms | public domain |
biglam/index-cards-{peabody-newspaper, navy-nurse-corps, harvard-botany-metropolitan-flora, cas-galapagos-stewart-specimens, southborough-vital-records} |
other (see source) |
Scope & status
Typed core (LoC forms ×2, BPL ×2, Rubenstein, Peabody, Parisian, Southborough) = good/usable. Problematic (Navy Nurse = multi-card scan; 2 handwritten specimens) = kept but flagged.
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