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Maphub - Annotations and Semantic Tags on Historical Maps


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Maphub presentation @ Stanford Open Annotation Rollout

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Maphub - Annotations and Semantic Tags on Historical Maps

  1. 1. Maphub - Annotations andSemantic Tags on Historical MapsBernhard Haslhofer, University of ViennaStanford University, April 2013, Palo Alto
  2. 2. Overview • Historical Maps & Annotations • Demo • Maphub Open Annotation API • Semantic Tagging StudyStanford University, April 2013
  3. 3. Context • Open Annotation Collaboration Demonstrator Project • Uses Library of Congress maps + metadata • Based on previous work • LEMO Media Annotation Framework • yuma.min.js (now annotorious)Stanford University, April 2013
  4. 4. Historical Maps & AnnotationsStanford University, April 2013
  5. 5. Historical Maps & AnnotationsStanford University, April 2013
  6. 6. Benefits • Engage people; let them tell their stories • Collect knowledge & enhance metadata • Connect digitized maps with other Web resourcesStanford University, April 2013
  7. 7. Maphub Demo University, April 2013
  8. 8. Maphub Open Annotation APIStanford University, April 2013
  9. 9. Maphub Open Annotation API • Two types of Annotations • Georeference Annotation • Commentarial AnnotationStanford University, April 2013
  10. 10. Georeference AnnotationsStanford University, April 2013
  11. 11. Georeference Annotations "bernhard.haslhofer@ oa: oax: maphub: "2012-07-18T02:" Annotation Tagging GeoReference 01:07Z" "behas" rdf:type "2012-07-18T02: foaf:mbox rdf:type rdf:type 01:07Z" oa:annotated foaf:name oa:generated http:// http://maphubdev. uuid:1235 control_points/1 oa:annotator oa:generator oax:hasSemanticTag oa:Specific oa:hasTarget Resource rdf:type http:// oa:Fragment uuid:4567 Selector 2643743/ oa:hasSelector rdf:type oa:hasSource uuid:8910 http:// rdf:value at/maps/raw/ g3200.ct000725C.jp2 xywh=6550,6228,1,1 dc:format rdf:type image/jp2 dcterms:StillImageStanford University, April 2013
  12. 12. Commentarial AnnotationStanford University, April 2013
  13. 13. Commentarial Annotation "bernhard.haslhofer@ oa: "2012-07-18T02:" Annotation 01:07Z" "behas" "2012-07-18T02: foaf:mbox rdf:type 01:07Z" oa:annotated foaf:name oa:generated http:// http://maphubdev. uuid:1235 annotations/1 oa:annotator oa:generator oax:hasSemanticTag oax:hasSemanticTag oa:hasTarget oa:Specific ct:ContentAs Resource rdf:type Text dbpedia: rdf:type dbpedia: Pillars_of_Hercules Strait_of_Gibraltar uuid:4567 dcterms: oa:hasSelector format image/svg cnt:Content oa:hasBody uuid:2752 oa:hasSource AsText oa:hasSelector rdf:type uuid:2751 ct:chars <svg…..> "text/plain" http:// rdf:type cnt:chars uuid:2753 dc:format at/maps/raw/ g3200.ct000725C.jp2 ct:ContentAs dcterms: Text In antiquity, the Strait of Gibraltar (which format dc:format connects the Atlantic Ocean with the rdf:type Mediterranean Sea) was also known by the name "The Pillars of Hercules". This is the reason for this inscription! image/jp2 application/wkt ct:chars POLYGON((5315 dcterms:StillImage 5639,5444….)Stanford University, April 2013
  14. 14. Controlpoint Index ore: Aggregation rdf:type Maphub Controlpoints dc:title http:// control_points ore:aggregates http:// control_points/1 ore:aggregates http:// control_points/....Stanford University, April 2013
  15. 15. Annotation Index ore: Aggregation rdf:type Maphub Commentarial Annotations dc:title http:// annotations ore:aggregates http:// annotations/1 ore:aggregates http:// annotations/5Stanford University, April 2013
  16. 16. Semantic Tagging StudyStanford University, April 2013
  17. 17. Semantic Tagging Model u t rx ry about K r t u Semantic tagging Label-based tagging t1 [Marlow et al. 2006] + rx ry u rz - t2 K Semantic tagging with user feedback [Haslhofer et al. 2013]Stanford University, April 2013
  18. 18. Semantic Tagging in MaphubStanford University, April 2013
  19. 19. Goals • Study the effects of semantic tagging on • tag production (# tags) • types and categories of types added • user task loadStanford University, April 2013
  20. 20. Methodology • in-lab, within-subject design with 4 tag creation methods as varying condition • Label-based tagging (LT) • Suggestive tagging (ST) • Semantic tagging (SMT) • Semantic tagging with context display (SMT-CTX) • 24 student participants • pre- and post-test surveys incl. NASA-TLXStanford University, April 2013
  21. 21. Results Summary • Semantic tagging (as implemented in Maphub) does NOT affect • tag production • types and categories of tags • user task load ...but provides tagging relationships to well- defined concept definitions.Stanford University, April 2013
  22. 22. Further Information B. Haslhofer, W. Robitza, C. Lagoze, F. Guimbretiere: "Semantic Tagging on Historical Maps". ACM Web Science 2013, Paris, France, May 2-4th, 2013. B. Haslhofer, K. Newman, A. Stefanik, W. Robitza, C.Lagoze: "Old Maps and Open Data Networks" (Poster). iConference 2013, Fort Worth, Texas, USA, Feb 12-15th, 2013. B. Haslhofer, R. Sanderson, R. Simon, H. van de Sompel: "Open Annotations on Multimedia Web Resources". Multimedia Tools and Applications, pg. 1-21, May 2012 University, April 2013