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Crowdsourcing Georeference - A Case Study on a National Project StareMapy.cz
The document outlines a crowdsourcing georeferencing project conducted from 2011 to 2015, which aimed to visualize historical maps in 3D and enhance their metadata for research and education. It achieved the participation of 250,000 individuals, resulting in the digitization of 46,000 high-resolution maps and significant user engagement metrics. Key lessons learned included the importance of user-friendly tools, effective public communication, and leveraging social media for outreach.
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Crowdsourcing Georeference - A Case Study on a National Project StareMapy.cz
- 1. CROWDSOURCING GEOREFERENCE - ACASE STUDY ON A NATIONAL PROJECT Petr Pridal, Ph.D. petr.pridal@klokantech.com Moravian Library in Brno, Czech Republic ICA Digital Approaches to Cartographic Heritage, 10th Conference & Workshop, Corfu 2015
- 2. “It were thedreams and desires of travellers, monarchs and generals…”
- 3. “… the handsof artists and cartographers, who created these works…”
- 4. “… and nowit's you who can rediscover these documents, put them on modern maps, and share them with the future generations.”
- 5. CONNECT THE PAST VISIBLEON THE OLD MAPS WITH THE PRESENT
- 6.
- 7. Why? 5 minutesfrom a volunteer: • Visualization of the old maps in 3D space and as overlays • New ways how to discover maps with geographical search • Enrichment of the metadata of maps required for research and education
- 9.
- 10. 46.000 high-resolution maps from 19institutions
- 12. 760.000 points, ifone takes 10 seconds it is over 2000 hours!
- 13. 250.000 people involved (Czech Republichas 10 mil.)
- 14. Language Sessions % Sessions 1.cs 277,462 78.56% Overview Sessions January 2011 January 2012 January 2013 January 2014 January 2015 5,0005,0005,000 10,00010,00010,000 Sessions 353,176 Users 247,320 Pageviews 1,236,870 Pages / Session 3.50 Avg. Session Duration 00:04:11 Bounce Rate 43.19% % New Sessions 69.75% New Visitor Returning Visitor 30.1% 69.9% All Sessions 100.00%
- 15. Lessons learned: • Userfriendly, easy to use online tools, localisation, delayed login, introduction video • Social media (Facebook) • Competition and rewarding - prices & rounds • Communication to the public is essential • Quality control step (reviewers) + history revisions
- 18. Cultural heritage &PR • Announcements together all involved institutions • Project start in connection with a real event (reopening of the map library in Charles University in Prague) • TV news, radio interviews - repeated contact • Competition and rewarding - small prices • Social media (Facebook) interaction • Communication to the public is essential (!!!)
- 22.