Europeana and schema.org

Europeana and schema.org Antoine Isaac Dublin Core Conference Schema.org special session 5 September 2013

Europeana Data Model: an example For a general presentation on Europeana and EDM rationale see http://pro.europeana.eu/edm-documentation

Provided Cultural Heritage Object (CHO) and descriptive metadata

Web Resources digital representations

Aggregations Bundling it all together

Why using schema.org? Europeana tries to disseminate data to reach out to as many users as possible Search engines Customization of result lists rich snippets Knowledge Graph Search Engine Optimization Developers more comfortable with parsing web pages

In fact: schema.org and RDFa Europeana has been publishing structured metadata via its portal since a while One application case: customization of public domain pages by Creative Commons, with details on the work and Europeana usage guidelines for public domain works

Europeana, Creative Commons and RDFa http://www.europeana.eu/portal/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B.html

The Creative Commons Public Domain page triggers a script that harvests mark-up on the Europeana object page

Going further Creative Commons uses 5-6 fields, Agreed upon with the developer(s) there What to publish further? Schema.org as a standardized form of more web page-based data exchange And it has a case several ones in fact Still quite prototype-ish

Current EDM schema.org mapping EDM element Schema.org mapping ProvidedCHO & Proxy dc:contributor dc:coverage dc:creator dc:date dc:description dc:format dc:identifier dc:language dc:publisher dc:relation dc:rights dc:source dc:subject dc:title dc:type dcterms:alternative dcterms:conformsto dcterms:created dcterms:extent dcterms:hasformat dcterms:haspart dcterms:hasversion dcterms:isformatof dcterms:ispartof dcterms:isreferencedby dcterms:isreplacedby dcterms:isrequiredby dcterms:issued dcterms:isversionof dcterms:medium dcterms:provenance dcterms:references dcterms:replaces dcterms:requires dcterms:spatial dcterms:tableofcontents dcterms:temporal edm:currentlocation edm:hasmet edm:hastype edm:incorporates edm:isderivativeof edm:isnextinsequence edm:isrelatedto edm:isrepresentationof edm:issimilarto edm:issuccessorof edm:realizes edm:type edm:unstored edm:waspresentat edm:europeanaproxy edm:usertag edm:year ore:proxyfor ore:proxyin owl:sameas rdf:type schema:creativework schema:contributor schema:creator schema:description schema:inlanguage schema:publisher schema:about schema:name schema:alternativeheadline schema:datecreated schema:datepublished schema:mentions schema:contentlocation schema:additionaltype schema:about N/A N/A schema:keywords or schema:comment N/A N/A Aggregation and EuropeanaAggregation ore:aggregates edm:aggregatedcho edm:country edm:dataprovider edm:hasview edm:isshownat edm:isshownby edm:landingpage edm:language edm:object edm:preview edm:provider dc:rights edm:rights edm:ugc edm:unstored WebResource dc:description dc:format dc:rights dc:source dcterms:conformsto dcterms:created dcterms:extent dcterms:haspart dcterms:isformatof dcterms:issued edm:isnextinsequence edm:rights N/A N/A schema:addresscountry schema:provider schema:url schema:url schema:contenturl schema:url schema:image, if preview opt-out is NOT activated schema:thumbnailurl if preview opt-out is NOT activated schema:provider N/A schema:webpage or schema:mediaobject schema:url schema:description schema:encodescreativework schema:datecreated schema:datepublished Agent schema:person or schema:organization skos:preflabel schema:name skos:altlabel skos:hiddenlabel schema:additionalname skos:note schema:description dc:date dc:identifier edm:begin edm:end schema:deathdate edm:hasmet schema:knows edm:isrelatedto edm:waspresentat foaf:name schema:name rdagr2:biographicalinformation schema:description rdagr2:dateofbirth schema:birthdate rdagr2:dateofdeath schema:deathdate rdagr2:dateofestablishment schema:foundingdate rdagr2:dateoftermination rdagr2:gender schema:gender rdagr2:professionoroccupation schema:jobtitle owl:sameas Place schema:place wgs84_pos:lat wgs84_pos:long wgs84_pos:alt wgs84_pos:lat_long skos:preflabel schema:name skos:altlabel skos:hiddenlabel schema:additionalname skos:note schema:description dcterms:haspart dcterms:ispartof schema:containedin owl:sameas

Current implementation A glimpse of an object s full data http://www.europeana.eu/portal/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B.ht ml?format=labels Anatomy of results from an RDFa parser http://www.w3.org/2012/pyrdfa/ Several flavors of data in it

Schema.org data <http://www.europeana.eu/resolve/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B> a schema:creativework; schema:name "Cofre de base rectangular com tampa de quatro face..."; schema:about "Cofre-relicà rio"; schema:addresscountry "Portugal"; schema:contenturl <http://www.matriznet.imc-ip.pt/matriznet/commonservices/ ThumbnailDownloader.axd?IdReg=5113&TipoReg=1&ThumbnailType=2>; schema:creator "Desconhecido"; schema:description "Cofre de base rectangular com tampa de quatro faces. A urna à decorada com um friso perlado que rodeia representaã ões da Virgem com o Menino, do Calvà rio e da Virgem em Glória, nas quatro faces. As arestas da tampa sã o emolduradas por pequenas caneluras; nas duas faces principais um entrelaã ado encerra uma arcaria polilobada."; schema:image <http://www.matriznet.imc-ip.pt/matriznet/commonservices/ ThumbnailDownloader.axd?IdReg=5113&TipoReg=1&ThumbnailType=1>; schema:provider "Instituto dos Museus e da Conservaà à o", "Museu de Alberto Sampaio"; schema:url <http://www.europeana.eu/portal/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B.html>, <http://www.matriznet.imc-ip.pt/matriznet/objectos/objectosconsultar.aspx?idreg=5113>;

DC / EDM data dc11:creator "Desconhecido"; dc11:date "XIII"; dc11:description "Cofre de base rectangular com tampa de quatro faces. [ ]."; dc11:format "Altura: 9,5 cm; Profundidade: 10 cm; Comprimento: 19,5 cm"; dc11:identifier "MAS O 37"; dc11:rights "Copyright  Instituto dos Museus e da Conservaà à o"; dc11:subject "Cofre-relicà rio"; dc11:title "Cofre de base rectangular com tampa de quatro face..."; dc11:type "Ourivesaria"; edm:country "Portugal"; edm:rights <http://creativecommons.org/publicdomain/mark/1.0/>; edm:dataprovider "Museu de Alberto Sampaio"; edm:provider "Instituto dos Museus e da Conservaà à o"; edm:isshownat <http://www.matriznet.imc-ip.pt/matriznet/objectos/objectosconsultar.aspx? IdReg=5113>; edm:isshownby <http://www.matriznet.imc-ip.pt/matriznet/commonservices/ ThumbnailDownloader.axd?IdReg=5113&TipoReg=1&ThumbnailType=2>; edm:landingpage <http://www.europeana.eu/portal/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B.html>; edm:object <http://www.matriznet.imc-ip.pt/matriznet/commonservices/ ThumbnailDownloader.axd?IdReg=5113&TipoReg=1&ThumbnailType=1>;

FB OpenGraph data og:description "Cofre de base rectangular com tampa de quatro faces. A urna à decorada [ ]"; og:image "http://europeanastatic.eu/api/image?type=image&uri=http://www.matriznet.imc-ip.pt/ MatrizNet/CommonServices/ThumbnailDownloader.axd? IdReg=5113&TipoReg=1&ThumbnailType=1&size=FULL_DOC"; og:site_name "Europeana"; og:title "Cofre de base rectangular com tampa de quatro face... Desconhecido"; og:type "website"; og:url "http://preview.europeana.eu/portal/record/ 02001/492A0518CA2BDF09B1642B11FA7317F5FE43B96B.html.

Creative Commons data xhv:license <http://creativecommons.org/publicdomain/mark/1.0/>; cc:attributionurl <http://www.matriznet.imc-ip.pt/matriznet/objectos/objectosconsultar.aspx? IdReg=5113>; cc:morepermissions <http://www.matriznet.imc-ip.pt/matriznet/objectos/ ObjectosConsultar.aspx?IdReg=5113>; cc:useguidelines <http://www.europeana.eu/rights/pd-usage-guide/>;

Observations Schema.org is simple Not everything can be mapped We re losing grain, including some of the core benefits of Europeana moving to the richer EDM! But it s ok, because it matches needs And in fact it s not entirely because of Schema.org And we can publish different flavors of the data in RDFa

Thank you! Questions? Antoine Isaac aisaac@few.vu.nl