Collaborative Map Annotations with Maphub

•

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The document describes Maphub, an open annotation platform for annotating and commenting on historic maps. It provides an overview and then discusses Maphub's demonstration video, its open annotation API, and lessons learned. The API supports two types of annotations - georeference annotations which link regions of maps to external resources, and commentarial annotations which allow comments on maps.

Technology Education

Collaborative Map Annotations
with Maphub

Bernhard Haslhofer, Cornell University
OAC Phase II Review Meeting, July 2012, Chicago

Overview

• Historic Maps & Annotations

• Maphub Demo

• Maphub Open Annotation API

• Lessons Learned

OAC Phase II Review Meeting, JUly 26th, Chicago

Historic Maps & Annotations

OAC Phase II Review Meeting, JUly 26th, Chicago

Maphub Screencast

• http://vimeo.com/46114369

OAC Phase II Review Meeting, JUly 26th, Chicago

Maphub Open Annotation API

• Two types of Annotations

• Georeference Annotation

• Commentarial Annotation

OAC Phase II Review Meeting, JUly 26th, Chicago

Georeference Annotations

OAC Phase II Review Meeting, JUly 26th, Chicago

Georeference Annotations
"bernhard.haslhofer@ oa: oax: maphub: "2012-07-18T02:
cornell.edu" 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 maphubdev.mminf.univie.ac.at/
mminf.univie.ac.at
control_points/1
oa:annotator oa:generator

oax:hasSemanticTag oa:Speciﬁc
oa:hasTarget Resource
rdf:type
http://
oa:Fragment
sws.geonames.org/ uuid:4567 Selector
2643743/

oa:hasSelector rdf:type
oa:hasSource
uuid:8910

http:// rdf:value
samos.mminf.univie.ac.
at/maps/raw/
g3200.ct000725C.jp2 xywh=6550,6228,1,1

dc:format rdf:type

image/jp2 dcterms:StillImage

OAC Phase II Review Meeting, JUly 26th, Chicago

Commentarial Annotation

OAC Phase II Review Meeting, JUly 26th, Chicago

Commentarial Annotation
"bernhard.haslhofer@ oa: "2012-07-18T02:
cornell.edu" Annotation 01:07Z"

"behas"
"2012-07-18T02:
foaf:mbox rdf:type 01:07Z"
oa:annotated
foaf:name
oa:generated
http://
http://maphubdev.
uuid:1235 maphubdev.mminf.univie.ac.at/
mminf.univie.ac.at
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://
samos.mminf.univie.ac. 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….)

OAC Phase II Review Meeting, JUly 26th, Chicago

Controlpoint Index

ore:
Aggregation

rdf:type
Maphub Controlpoints
dc:title
http://
maphubdev.mminf.univie.ac.at/
control_points
ore:aggregates
http://
maphubdev.mminf.univie.ac.at/
control_points/1

ore:aggregates

http://
maphubdev.mminf.univie.ac.at/
control_points/....

OAC Phase II Review Meeting, JUly 26th, Chicago

Annotation Index

ore:
Aggregation

rdf:type
Maphub Commentarial
Annotations
dc:title
http://
maphubdev.mminf.univie.ac.at/
annotations
ore:aggregates
http://
maphubdev.mminf.univie.ac.at/
annotations/1

ore:aggregates

http://
maphubdev.mminf.univie.ac.at/
annotations/5

OAC Phase II Review Meeting, JUly 26th, Chicago

Lessons Learned

OAC Phase II Review Meeting, JUly 26th, Chicago

Lessons Learned

• Implementing RDF in Ruby (on Rails)

• another server-side serializer

• needed to register mime-type mappings
for conneg

• implemented to_rdf() for maphub model

OAC Phase II Review Meeting, JUly 26th, Chicago

Lessons Learned

• OA Model Complexity

• our use cases are relatively simple

• the resulting OA serializations are pretty
complex

• demanding for developers ( = the people
who will read / use the spec)

OAC Phase II Review Meeting, JUly 26th, Chicago

Further Information

• http://maphub.github.com

OAC Phase II Review Meeting, JUly 26th, Chicago

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Collaborative Map Annotations with Maphub

1. Collaborative Map Annotations with Maphub Bernhard Haslhofer, Cornell University OAC Phase II Review Meeting, July 2012, Chicago

2. Overview • Historic Maps & Annotations • Maphub Demo • Maphub Open Annotation API • Lessons Learned OAC Phase II Review Meeting, JUly 26th, Chicago

3. Historic Maps & Annotations OAC Phase II Review Meeting, JUly 26th, Chicago

4. Historic Maps & Annotations OAC Phase II Review Meeting, JUly 26th, Chicago

5. Historic Maps & Annotations OAC Phase II Review Meeting, JUly 26th, Chicago

6. Maphub Screencast • http://vimeo.com/46114369 OAC Phase II Review Meeting, JUly 26th, Chicago

7. Maphub Open Annotation API • Two types of Annotations • Georeference Annotation • Commentarial Annotation OAC Phase II Review Meeting, JUly 26th, Chicago

8. Georeference Annotations OAC Phase II Review Meeting, JUly 26th, Chicago

9. Georeference Annotations "bernhard.haslhofer@ oa: oax: maphub: "2012-07-18T02: cornell.edu" 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 maphubdev.mminf.univie.ac.at/ mminf.univie.ac.at control_points/1 oa:annotator oa:generator oax:hasSemanticTag oa:Speciﬁc oa:hasTarget Resource rdf:type http:// oa:Fragment sws.geonames.org/ uuid:4567 Selector 2643743/ oa:hasSelector rdf:type oa:hasSource uuid:8910 http:// rdf:value samos.mminf.univie.ac. at/maps/raw/ g3200.ct000725C.jp2 xywh=6550,6228,1,1 dc:format rdf:type image/jp2 dcterms:StillImage OAC Phase II Review Meeting, JUly 26th, Chicago

10. Commentarial Annotation OAC Phase II Review Meeting, JUly 26th, Chicago

11. Commentarial Annotation "bernhard.haslhofer@ oa: "2012-07-18T02: cornell.edu" Annotation 01:07Z" "behas" "2012-07-18T02: foaf:mbox rdf:type 01:07Z" oa:annotated foaf:name oa:generated http:// http://maphubdev. uuid:1235 maphubdev.mminf.univie.ac.at/ mminf.univie.ac.at 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:// samos.mminf.univie.ac. 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….) OAC Phase II Review Meeting, JUly 26th, Chicago

12. Controlpoint Index ore: Aggregation rdf:type Maphub Controlpoints dc:title http:// maphubdev.mminf.univie.ac.at/ control_points ore:aggregates http:// maphubdev.mminf.univie.ac.at/ control_points/1 ore:aggregates http:// maphubdev.mminf.univie.ac.at/ control_points/.... OAC Phase II Review Meeting, JUly 26th, Chicago

13. Annotation Index ore: Aggregation rdf:type Maphub Commentarial Annotations dc:title http:// maphubdev.mminf.univie.ac.at/ annotations ore:aggregates http:// maphubdev.mminf.univie.ac.at/ annotations/1 ore:aggregates http:// maphubdev.mminf.univie.ac.at/ annotations/5 OAC Phase II Review Meeting, JUly 26th, Chicago

14. Lessons Learned OAC Phase II Review Meeting, JUly 26th, Chicago

15. Lessons Learned • Implementing RDF in Ruby (on Rails) • another server-side serializer • needed to register mime-type mappings for conneg • implemented to_rdf() for maphub model OAC Phase II Review Meeting, JUly 26th, Chicago

16. Lessons Learned • OA Model Complexity • our use cases are relatively simple • the resulting OA serializations are pretty complex • demanding for developers ( = the people who will read / use the spec) OAC Phase II Review Meeting, JUly 26th, Chicago

17. Further Information • http://maphub.github.com OAC Phase II Review Meeting, JUly 26th, Chicago

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