Short introduction to RDF model based on the EDM sounds profile

SHORT INTRODUCTION TO THE RDF MODEL BASED ON THE EDM SOUNDS PROFILE

Nikolaos Simou

Introduction to RDF

RDF stands for Resource Description Framework.

RDF is a standard for describing Web resources.

RDF can be used to describe content, in our case Digitized Cultural Heritage Objects.

Introduction to RDF

RDF identifies things using Web identifiers (URIs), and describes resources with properties and property values.

Explanation of Resource, Property, and Property value: A Resource is anything that can have a URI, such as

"http://mint-projects.image.ntua.gr/data/sounds/10853" A Property is a Resource that has a title, such as ”dc:title”

and a creator ”dc:creator" A Property value is the value of a Property, such as

“Johann Sebastian Bach" or "http://dbpedia.org/resource/Johann_Sebastian_Bach" (note that a property value can be another resource)

RDF Syntax

<edm:ProvidedCHO rdf:about="http://mint-projects.image.ntua.gr/data/sounds/10853"/>

<dc:creator>Johann Sebastian Bach</dc:creator>

<dc:creator rdf:resource=“http://dbpedia.org/resource/Johann_Sebastian_Bach”/>

<dc:identifier>10853</dc:identifier>

<dc:title xml:lang=“en”>Bourree in e-minor</dc:title>

. . .

<edm:type>SOUND</edm:type>

</edm:ProvidedCHO>

RDF as a Graph

edm: ProvidedCHOhttp://mint-

projects.image.ntua.gr/data/sounds/10853

dbpedia-owl:Person

http://dbpedia.org/resource/

Johann_Sebastian_Bach

dc:creator

“Johann Sebastian Bach”

“10853”

“Bourree in e-minor”

“SOUND”

dc:identifier

dc:title

edm:type

1685-03-21

1750-07-28

…

dbpedia:birthDate

dbpedia:deathDate

EDM Syntax

<edm:ProvidedCHO rdf:about="http://mint-projects.image.ntua.gr/data/sounds/10853">

<dc:creator>Johann Sebastian Bach</dc:creator>

<dc:creator rdf:resource=“http://dbpedia.org/resource/Johann_Sebastian_Bach”/>

<dc:identifier>10853</dc:identifier>

<dc:title>Bourree in e-minor</dc:title>

. . .

<edm:type>SOUND</edm:type>

</edm:ProvidedCHO>

<ore:Aggregation rdf:about="http://mint-projects.image.ntua.gr/data/sounds/Aggregation_10853">

<edm:aggregatedCHO rdf:resource=“http://mint-projects.image.ntua.gr/data/sounds/10853”>

<edm:dataProvider>NTUA</edm:dataProvider>

<edm:isShownAt rdf:resource=“http://link.to.portal”>

<edm:rights>SOUND</edm:rights>

</edm:ProvidedCHO>

EDM as a Graph

edm: ProvidedCHO

ore: Aggregation

edm:aggregatedCHO

“Johann Sebastian Bach”

dc:creator

“10853” “SOUND”

dc:identifier

edm:type

“NTUA”“EuropeanaSounds”

edm:provider

edm:dataProvider

edm:Collection8

edm: Collection

ore: Aggregation

ore: Aggregation

ore: Aggregation

ore: Aggregation

edm: ProvidedCHO

edm: ProvidedCHO

edm: ProvidedCHO

edm:aggregatedCHO

edm:aggregatedCHO

edm:aggregatedCHO

edm:aggregatedCHO

dcterms:isPartOf dcterms:isPa

rtOfdcterms:isPartOf

edm:Collection9

Group your imports per Collection Two approaches

1. Create one mapping that includes both the edm:Collection and the edm:ProvidedCHOs (EDM Sounds schema)

2. Create a mapping for the edm:Collection (EDM Sounds Collection schema) and another mapping for the edm:ProvidedCHOs (EDM Sounds schema)

edm:Collection – Approach 1

10

The relation of a edm:ProvidedCHO and its aggregation is set by default


11

Create an instance of the edm:Collection class and relate it to a new ore: Aggregation


12

Relate your edm:ProvidedCHOs to the collection you’ve made

edm:Collection – Approach 1<edm:ProvidedCHO rdf:about="http://mint-projects.image.ntua.gr/data/sounds/108_0851b">

<dcterms:isPartOf rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>

<edm:isGatheredInto rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>

</edm:ProvidedCHO>

<edm:Collection rdf:about="http://mint-projects.image.ntua.gr/data/sounds/MyCollection">

<dc:creator>Nikos</dc:creator>

</edm:Collection>

<ore:Aggregation rdf:about="http://mint-projects.image.ntua.gr/data/sounds/MyCollectionAggregation">

<edm:aggregatedCHO rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>

<edm:provider>Europeana Sounds</edm:provider>

</ore:Aggregation>

<ore:Aggregation rdf:about="http://mint-projects.image.ntua.gr/data/sounds/Aggregation_108_0851b">

<edm:aggregatedCHO rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/108_0851b"/>


</ore:Aggregation>


14

Make a mapping for creating the edm:Collection (EDM Sounds Collection schema) Import

Either use a single XML/CSV file with metadata about the Collection

Or use an existing import that YOU ARE NOT GOING TO PUBLISH and use ONLY constant mappings


15

The relation of a edm:Collection and its aggregation is set by default


16

In case you use an existing import that YOU ARE NOT GOING TO PUBLISH then use ONLY constant mappings


17

Then make a mapping (EDM Sounds schema) for creating the edm:ProvidedCHOs and relate them to the edm:Collection you’ve made

EDM COLLECTION SOUNDS

<edm:Collection rdf:about="http://mint-projects.image.ntua.gr/data/sounds/MyCollection">

<dc:creator>Nikos</dc:creator>

</edm:Collection>

<ore:Aggregation rdf:about="http://mint-projects.image.ntua.gr/data/sounds/MyCollectionAggregation">

<edm:aggregatedCHO rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>


</ore:Aggregation>

EDM SOUNDS

<edm:ProvidedCHO rdf:about="http://mint-projects.image.ntua.gr/data/sounds/108_0851b">

<dcterms:isPartOf rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>

<edm:isGatheredInto rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/MyCollection"/>

</edm:ProvidedCHO>

<ore:Aggregation rdf:about="http://mint-projects.image.ntua.gr/data/sounds/Aggregation_108_0851b">

<edm:aggregatedCHO rdf:resource="http://mint-projects.image.ntua.gr/data/sounds/108_0851b"/>


</ore:Aggregation>


Contact19

Nikolaos Simou

National Technical University of Athens

Email: [email protected] LinkedIn:

http://www.linkedin.com/pub/nikolaos-simou/68/31a/9aa

mailto:[email protected]





Short introduction to RDF model based on the EDM sounds profile

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