semantic mashup/linked data with topic maps and subj3ct.com
DESCRIPTION
Presentation from Topic Maps 2010 in Oslo. Presented by Graham Moore and Reidar Bratsberg. The presentation demos how we did a semantic mashup with NRK.no/skole (educational videos), Naturfag.no (learning resources in science education), Grep (the national curriculum) with the help of Topic Maps and Subj3ct.com.TRANSCRIPT
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Ravn Webveveriet, Networked Planet
Graham Moore, Networked Planet Reidar Bratsberg, Ravn Webveveriet
Semantic mashupGrep, NRK, Naturfag, Subj3ct
fredag 16. april 2010
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W E B V E V E R I E T
Mission
• Present relevant educational videos from NRK at Naturfag.no, automatically
• Based on common connections with the curriculum (Grep)
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W E B V E V E R I E T
Subj3ct.com
• Store subject identifiers, with names and descriptions
• Store equivalence between identifiers
• Stores links to data that contains statements about the subject
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W E B V E V E R I E T
fredag 16. april 2010
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W E B V E V E R I E T
Players
• The curriculum (“Grep”); identifiers
• The national broadcasting service, NRK, educational television (nrk.no/skole); videos
• Learning resources in science (naturfag.no)
• Subj3ct; glue
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W E B V E V E R I E T
Grep
• Official source for the curriculum is a topic map
• "Competence goals"
• PSIs: Published Subject Indicators
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W E B V E V E R I E T
NRK
• National Broadcasting Corporation
• Educational videos
• Recently launched nrk.no/skole
• Topic Maps based
• Grep"competence goals"
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W E B V E V E R I E T
fredag 16. april 2010
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W E B V E V E R I E T
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W E B V E V E R I E T
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W E B V E V E R I E T
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W E B V E V E R I E T
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W E B V E V E R I E T
Naturfag.no
• Norwegian Center for Science Education
• Learning resources for teachers
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W E B V E V E R I E T
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W E B V E V E R I E T
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W E B V E V E R I E T
fredag 16. april 2010
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W E B V E V E R I E T
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W E B V E V E R I E T
fredag 16. april 2010
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W E B V E V E R I E T
fredag 16. april 2010
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"gjøre rede for noen mulige konsekvenser av økt drivhuseffekt, blant annet i arktiske områder, og hvilke tiltak som settes i verk internasjonalt for å redusere økningen i drivhuseffekten"
The competence goal
http://psi.udir.no/7533d6f8-5ca7-42af-b7cc-fab4c1860a4d
The PSI
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W E B V E V E R I E T
Subj3ct.comIdentifer resolution service
Atom feeds
Subj3ct.com
Grepnrk.no/skole (naturfag.no)
http://psi.udir.no/7533d6f8-5ca7-42af-b7cc-fab4c1860a4d
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W E B V E V E R I E T
Atom feed
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W E B V E V E R I E T
Atom feed entry, example from NRK
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http://psi.udir.no/7533d6f8-5ca7-42af-b7cc-fab4c1860a4d
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W E B V E V E R I E T
fredag 16. april 2010
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W E B V E V E R I E T
How to find related videos?
• Ask Subj3ct for representation URIs for the given subject
• Follow these URIs, and negotiate to find useful content
• Use the result as we please
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fredag 16. april 2010
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W E B V E V E R I E T
http://psi.udir.no/7533d6f8-5ca7-42af-b7cc-fab4c1860a4d
?
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W E B V E V E R I E T
Name, identifier, etc...[Representation, ...]
[Equivalence, ...]
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W E B V E V E R I E T
From Subj3ct (from JSON)
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W E B V E V E R I E T
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W E B V E V E R I E T
TM-frag
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W E B V E V E R I E T
Topic map fragment from NRK (JTM)
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W E B V E V E R I E T
Demo
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W E B V E V E R I E T
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W E B V E V E R I E T
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W E B V E V E R I E T
How easy was it?
• Time spent: 2 days
• Number of meetings: 1 conference call
• ~100 lines of code at Naturfag.no
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W E B V E V E R I E T
Summary
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