Publishing Europe's Television Heritage on the Web

Johan Oomen (Sound and Vision- NL)

Vassilis Tzouvaras (NTUA)

Nikolaos Simou (NTUA)

www.www.

www.euscreen.eu

• Diversity of television content– Various providers, different content, different

management systems, different metadata

• Need for interoperability– content of type MPEG 4 part 10 (H.264)

encoded in a bit rate between 500 and 1000 kb/sec resembling SD quality video.

– mappings of providers metadata schemas to a reference domain model (EBU Core)

Content Ingestion

MINT Metadata Interoperability

• User friendly tool for creating mappings from any XML input to a reference XSD schema

• Follows a typical web based architecture– www.mint.image.ece.ntua.gr (MINT Website)– www.oreo.image.ece.ntua.gr:8080/mint/ (demo)

• Currently used in ATHENA, EUScreen, CARARE, Judaica, ECLAP, DCA and Linked Heritage

MINT Ingestion Workflow

Harvesting

Schema Mapping

Transformation

• Use URIs to identify things.• Use HTTP URIs so that these things can be referred to

and looked up ("dereferenced") by people and user agents.

• Provide useful information about the thing when its URI is dereferenced, using standard formats such as RDF/XML.

• Include links to other, related URIs in the exposed data to improve discovery of other related information on the Web.

Linked Data Principles

• Domain of lod pilot www.mint.image.ntua.gr (specifies the URI)

• The unique EUScreen item identifier is used as the resource identifier

• Each EUScreen item, according its metadata, is transformed to the appropriate EBU Class

• Additional metadata are represented with the appropriate EBU Properties

LOD Pilot

<rdf:Description rdf:about= "http://mint.image.ece.ntua.gr/resource/EUS_55F569268ACA42B186682960875F862B"> <rdf:type rdf:resource="http://www.ebu.ch/metadata/ontologies/ebucore#Part"/> <ebucore:originalTitle>Samenwerkende Hulp Organisaties</ebucore:originalTitle> <ebucore:createdIn rdf:resource="http://mint.image.ece.ntua.gr/resource/Netherlands"/> <ebucore:isRelatedTo rdf:resource="http://mint.image.ece.ntua.gr/resource/EUS_9258BE91396A4E1A8310C283B2139758"/> <ebucore:hasOriginalLanguage rdf:resource="http://mint.image.ece.ntua.gr/resource/Dutch_language"/>

</rdf:Description>

<EUScreen> <metadata> <AdministrativeMetadata> <identifier>EUS_55F569268ACA42B186682960875F862B</identifier>

</AdministrativeMetadata> <ContentDescriptionMetadata>

<itemType>Part</itemType><originalLanguage> Dutch </originalLanguage><originalTitle>Samenwerkende Hulp Organisaties</originalTitle><relationType>EUS_9258BE91396A4E1A8310C283B2139758<relationType>

</ContentDescriptionMetadata><ObjectDescriptionMetadata>

<GeographicalCoverage> Netherlands <GeographicalCoverage><ObjectDescriptionMetadata>

</metadata> </EUScreen>

XML Instance

RDF Representation

EUScreen LOD - Example

• Internal Linking– Harvesting schema contains elements that

connect items– E.g. relationType -> ebucore:isRelatedTo

• External Linking– Harvesting schema contains elements of

which values can be discovered as resources– E.g. Location

Linking EUScreen Metadata

<rdf:Description rdf:about= "http://mint.image.ece.ntua.gr/resource/EUS_55F569268ACA42B186682960875F862B"> <rdf:type rdf:resource="http://www.ebu.ch/metadata/ontologies/ebucore#Part"/> <ebucore:originalTitle>Samenwerkende Hulp Organisaties</ebucore:originalTitle> <ebucore:createdIn rdf:resource="http://mint.image.ece.ntua.gr/resource/Netherlands"/>

<ebucore:isRelatedTo rdf:resource="http://mint.image.ece.ntua.gr/resource/EUS_9258BE91396A4E1A8310C283B2139758"/> <ebucore:hasOriginalLanguage rdf:resource="http://mint.image.ece.ntua.gr/resource/Dutch_language"/>

</rdf:Description><rdf:Description rdf:about= "http://mint.image.ece.ntua.gr/resource/EUS_9258BE91396A4E1A8310C283B2139758">

<rdf:type rdf:resource="http://www.ebu.ch/metadata/ontologies/ebucore#Part"/> <ebucore:originalTitle>KATHARSIS</ebucore:originalTitle> <ebucore:createdIn rdf:resource="http://mint.image.ece.ntua.gr/resource/Netherlands"/> <ebucore:hasOriginalLanguage rdf:resource="http://mint.image.ece.ntua.gr/resource/Dutch_language"/>

</rdf:Description>

<rdf:Description rdf:about="http://mint.image.ece.ntua.gr/resource/Netherlands"><rdf:type rdf:resource="http://www.ebu.ch/metadata/ontologies/ebucore#Location"/>

<ebucore:locationName rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Netherlands</ebucore:locationName> <owl:sameAs rdf:resource="http://www4.wiwiss.fu-berlin.de/eurostat/resource/countries/Nederland"/> <owl:sameAs rdf:resource="http://rdf.freebase.com/ns/m/059j2"/>

<owl:sameAs rdf:resource="http://data.nytimes.com/N9126831021305207931"/><owl:sameAs rdf:resource="http://dbpedia.org/resource/Netherlands"/>

</rdf:Description>

Example

<rdf:Description rdf:about="http://mint.image.ece.ntua.gr/resource/Netherlands"><rdf:type rdf:resource="http://www.ebu.ch/metadata/ontologies/ebucore#Location"/>

<ebucore:locationName rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Netherlands</ebucore:locationName> <owl:sameAs rdf:resource="http://www4.wiwiss.fu-berlin.de/eurostat/resource/countries/Nederland"/> <owl:sameAs rdf:resource="http://rdf.freebase.com/ns/m/059j2"/>

<owl:sameAs rdf:resource="http://data.nytimes.com/N9126831021305207931"/><owl:sameAs rdf:resource="http://dbpedia.org/resource/Netherlands"/>

</rdf:Description>

DBpedia EurostatFreebase NY Times

Example

LOD Cloud

• MINT Website: www.mint.image.ece.ntua.gr • Mint Demo: www.oreo.image.ece.ntua.gr:8080/mint • EUScreen Mapping to EBU ontology:https

://docs.google.com/spreadsheet/ccc?key=0Akruw5a0_oaLdEQyMl85NVQxZ2lmT00wcVU4ZVRJZ0E&hl=en_US#gid=3

• LOD Pilot: http://mint.image.ece.ntua.gr/page/ • Sparql Endpoint: http://oreo.image.ece.ntua.gr:10999/test/

Useful links