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In February 2012, the British Library partnered with Klokan Technologies to enhance historical map data via crowdsourcing, engaging 90 participants. Over the course of the event, 725 maps were assigned spatial metadata, achieving over 97% data quality. Participants enjoyed immediate feedback and recognition for their contributions, which were crucial for correcting errors and managing data effectively. The initiative also highlighted the importance of accessibility and the competitive angle of crowdsourcing. This collaborative effort not only improved existing maps but also created a richer resource for historical research.
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A British Library / Klokan Technologies partnership Crowdsourcing map data Kimberly C. Kowal, Lead Curator Digital Mapping, The British Library
Quick Facts • 725 maps assigned spatial metadata • 13-18 February 2012 • 90 participants • Publicity minimal – social media *key* • Top five participants completed half the work • Data quality good: <3% had errors >.005
What is georeferencing? Ordnance Surveyors Drawing 40(detail). British Library, Maps OSD 40(3).
Ordnance Survey drawings Original large-scale drawings made for the famous one-inch-to-the-mile maps. England and Wales, 1780-1840. Part of Staffordshire Containing 100 Square Miles Surveyed by Mr Field and Drawn by Mr Stevens (detail). Pen and ink on paper. 1817. British Library shelfmark: OSD 210. Crace Collection of maps of London Illustrating development of the city and its immediate vicinity from ca 1570 - 1860 BAYNARDS CASTLE AND FARINGDON WARD WITHIN with their Divisions into Parishes according to a new SURVEY. (detail). Cole, B. engraver. 1754. British Library shelfmark:Maps Crace VIII.25
Remaining… • Correcting errors • Data management • Engaging participants: thanking / feedback • Preparations for next lot of maps – within the next month! • Continued improvements to application
What made it work… Content relevant Accessibility and convenience of application paramount Activity engaging Immediate results and feedback Competitive crowdsourcing tools Recognition and visible overall contribution