1 a british library / klokan technologies partnership crowdsourcing map data kimberly c. kowal, lead...
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A British Library / Klokan Technologies partnership
Crowdsourcing map data
Kimberly C. Kowal, Lead Curator Digital Mapping, The British Library
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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
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3Ordnance Surveyors Drawing 40(detail). British Library, Maps OSD 40(3).
What is georeferencing?
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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
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
Illustrating development of the city and its immediate vicinity from ca 1570 - 1860
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http://maps.bl.uk
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http://maps.bl.uk
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Competitive Crowdsourcing
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Remaining…
• Correcting errors
• Data management
• Engaging participants: thanking / feedback
• Preparations for next lot of maps – within the next month!
• Continued improvements to application
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(20 maps)
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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