Crowdsourced georeferencing for Map Library Collections
Chris Fleet, Senior Map Curator, National Library of Scotland
CIGS...
1. Advantages of georeferencing maps for libraries
2. Review of other approaches for crowdsourced georeferencing
3. Georef...
Georeferencing workflow
Why georeference maps?
1. To visualise maps in new or better ways
2. To improve access to and retrieval of maps
3. To allo...
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
1. To visualise maps in new or better ways
2. To improve access to and retrieval of maps
2. To improve access to and retrieval of maps
2. To improve access to and retrieval of maps
2. To improve access to and retrieval of maps
2. To improve access to and retrieval of maps
Map Images viewer
2. NLS OS 25 inch sheet boundaries in ScotlandsPlaces
2. NLS map sheet boundaries in OldMapsOnline
eg. Geo-referencing for
understanding the
content of early portolan
charts
3. To allow new ways of understanding the conte...
4. To allow maps to be integrated with other spatial information
eg. height – walled city of
Beirut from 18th
century
4. To allow maps to be integrated with other spatial information
eg. property ownership
5. To allow maps to be compared more easily to each other
Online versions at:
digital.nls.uk/bartholomew
Other approaches – QUAD-G
http://www.geography.wisc.edu/research/projects/quad-g/
Other approaches: NYPL Map Warper
http://maps.nypl.org/warper/
Other approaches: eHarta
http://earth.unibuc.ro/articole/eHarta?lang=en
NLS Georeferencer – projects page
http://maps.nls.uk/projects/georeferencer/
NLS Georeferencer – crowdsourced georeferencing
NLS Georeferencer – Georeferencer window
NLS Georeferencer – Georeferencer window
NLS Georeferencer – Georeferencer window
NLS Georeferencer – Visualise window
NLS Georeferencer – Accuracy window
NLS Georeferencer – Control Points in Google fusion table
Georeferenced metadata – MARC extents and GeoTIFF header info
Paris, France
E 2°13'27"-E 2°28'11"/N 48°54'07"-N 48°48'56"
...
NLS Georeferencer - results
1,000 early maps of Scotland - released November 2010
 half of the maps were georeferenced in...
BL Georeferencer – Georeference window
BL Georeferencer – Visualise window
BL Georeferencer – Visualise window
BL Georeferencer – Feb 2012 results: “Round One”
• 725 maps assigned spatial metadata
• Completed in less than one week
• ...
Content relevant
Accessibility and convenience of application
Activity engaging
Immediate results and feedback
Competitive...
BL Georeferencer – top georeferencers
44
BL Georeferencer – Competitive widgets
ICC Georeferencer – top contributors’ widgets
Georeferencer: Future Developments
Adopt personalisation and localisation tools, including a "My Maps"
option, the ability...
Crowdsourcing Placenames: Wales1900Cymru Zooniverse Project
http://www.cymru1900wales.org/
Thank you
NLS Georeferencer: http://maps.nls.uk/projects/georeferencer/
Fleet, Kowal & Pridal, “Georeferencer: Crowdsource...
Upcoming SlideShare
Loading in …5
×

Crowdsourced Georeferencing for Map Library Collections / Chris Fleet, Senior Map Curator, National Library of Scotland

680 views
471 views

Published on

Chris Fleet describes the role crowdwourcing can play in providing accurate georeferencing for historic map collections online. Presented at the 6th annual Metadata & Web 2.0 seminar organised by the Cataloguing and Indexing Group in Scotland, held at the National Library of Scotland, 21 June 2013

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
680
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
10
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • British Library Georeferencer
  • OG – view when georeferenced map image is available for viewing
  • Crowdsourced Georeferencing for Map Library Collections / Chris Fleet, Senior Map Curator, National Library of Scotland

    1. 1. Crowdsourced georeferencing for Map Library Collections Chris Fleet, Senior Map Curator, National Library of Scotland CIGS Metadata & Web 2.0 Seminar, 21 June 2013
    2. 2. 1. Advantages of georeferencing maps for libraries 2. Review of other approaches for crowdsourced georeferencing 3. Georeferencer application in NLS and BL 4. Key success factors 5. Future developments Crowdsourced georeferencing for Map Library Collections
    3. 3. Georeferencing workflow
    4. 4. Why georeference maps? 1. To visualise maps in new or better ways 2. To improve access to and retrieval of maps 3. To allow new ways of understanding the content of early maps 4. To allow maps to be integrated with other spatial information 5. To allow maps to be compared more easily to each other
    5. 5. 1. To visualise maps in new or better ways
    6. 6. 1. To visualise maps in new or better ways
    7. 7. 1. To visualise maps in new or better ways
    8. 8. 1. To visualise maps in new or better ways
    9. 9. 1. To visualise maps in new or better ways
    10. 10. 1. To visualise maps in new or better ways
    11. 11. 1. To visualise maps in new or better ways
    12. 12. 2. To improve access to and retrieval of maps
    13. 13. 2. To improve access to and retrieval of maps
    14. 14. 2. To improve access to and retrieval of maps
    15. 15. 2. To improve access to and retrieval of maps
    16. 16. 2. To improve access to and retrieval of maps
    17. 17. Map Images viewer
    18. 18. 2. NLS OS 25 inch sheet boundaries in ScotlandsPlaces
    19. 19. 2. NLS map sheet boundaries in OldMapsOnline
    20. 20. eg. Geo-referencing for understanding the content of early portolan charts 3. To allow new ways of understanding the content of early maps
    21. 21. 4. To allow maps to be integrated with other spatial information eg. height – walled city of Beirut from 18th century
    22. 22. 4. To allow maps to be integrated with other spatial information eg. property ownership
    23. 23. 5. To allow maps to be compared more easily to each other Online versions at: digital.nls.uk/bartholomew
    24. 24. Other approaches – QUAD-G http://www.geography.wisc.edu/research/projects/quad-g/
    25. 25. Other approaches: NYPL Map Warper http://maps.nypl.org/warper/
    26. 26. Other approaches: eHarta http://earth.unibuc.ro/articole/eHarta?lang=en
    27. 27. NLS Georeferencer – projects page http://maps.nls.uk/projects/georeferencer/
    28. 28. NLS Georeferencer – crowdsourced georeferencing
    29. 29. NLS Georeferencer – Georeferencer window
    30. 30. NLS Georeferencer – Georeferencer window
    31. 31. NLS Georeferencer – Georeferencer window
    32. 32. NLS Georeferencer – Visualise window
    33. 33. NLS Georeferencer – Accuracy window
    34. 34. NLS Georeferencer – Control Points in Google fusion table
    35. 35. Georeferenced metadata – MARC extents and GeoTIFF header info Paris, France E 2°13'27"-E 2°28'11"/N 48°54'07"-N 48°48'56" Format for MARC Aleph 034: $$dE0021327$$eE0022811$$fN0485407$$gN0484856 255: $$cE 2°13'27"-E 2°28'11"/N 48°54'07"-N 48°48'56" Driver: GTiff/GeoTIFF Files: 100741793.tif Size is 10642, 8892 Coordinate System is: PROJCS["OSGB_1936_British_National_Grid", GEOGCS["GCS_OSGB 1936", … Origin = (453544.409153918500000,145329.490622364830000) Pixel Size = (0.636277533843237,-0.636277533843237) Metadata: Corner Coordinates: Upper Left ( 453544.409, 145329.491) ( 1d14'0.54"W, 51d12'14.93"N) Lower Left ( 453544.409, 139671.711) ( 1d14'3.57"W, 51d 9'11.77"N) …
    36. 36. NLS Georeferencer - results 1,000 early maps of Scotland - released November 2010  half of the maps were georeferenced in the first 16 months,  some categories of maps, such as town plans, completely georeferenced in this time But...  problems with the registration and login  problems with map image display  passive promotion 2011 developments  improved design and professional instructional video  simpler registration and user logging  statistics and visualisation tools supporting competition in crowdsourcing
    37. 37. BL Georeferencer – Georeference window
    38. 38. BL Georeferencer – Visualise window
    39. 39. BL Georeferencer – Visualise window
    40. 40. BL Georeferencer – Feb 2012 results: “Round One” • 725 maps assigned spatial metadata • Completed in less than one week • Publicity minimal – social media *key* • ~90 participants • Top five completed half the work • Data quality good: <3% had errors >.005
    41. 41. Content relevant Accessibility and convenience of application Activity engaging Immediate results and feedback Competitive crowdsourcing tools Recognition and visible overall contribution Asking the top five contributors BL Georeferencer – What made it work ?
    42. 42. BL Georeferencer – top georeferencers
    43. 43. 44 BL Georeferencer – Competitive widgets
    44. 44. ICC Georeferencer – top contributors’ widgets
    45. 45. Georeferencer: Future Developments Adopt personalisation and localisation tools, including a "My Maps" option, the ability to upload custom scans by individuals, and the translation of the web interface into other European languages beyond English. Include better georeferencing options Add better support for multi-sheet maps and map series. Implement WMS / WMTS services - for georeferenced maps, allowing their presentation in a browser without requiring a Google Earth browser plugin, as well as in other web-mapping applications. Allow annotations of georeferenced maps by users and so exploiting the advantages of semantic links and extraction of textual content (including place names) from the maps themselves.
    46. 46. Crowdsourcing Placenames: Wales1900Cymru Zooniverse Project http://www.cymru1900wales.org/
    47. 47. Thank you NLS Georeferencer: http://maps.nls.uk/projects/georeferencer/ Fleet, Kowal & Pridal, “Georeferencer: Crowdsourced Georeferencing for Map Library Collections”, D-Lib Magazine 18(11/12), November/December 2012 http://www.dlib.org/dlib/november12/fleet/11fleet.html

    ×