DRI Presentation

Rebecca Grant Digital Archivist, Digital Repository of Ireland Royal Irish Academy

Sharing Irish Place Names as Linked Open Data: The Linked Logainm Project

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Digital Repository of Ireland

Interactive trusted digital repository for contemporary and historical, social and cultural data held by Irish institutions

DRI links and preserves the rich data held by Irish institutions, providing a central internet access point and multimedia tools

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Exchequer funded; HEA PRTLI 5, €5.2M

September 2011- September 2015

The Digital Repository of Ireland

Partners

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SFI INSIGHT: Ireland’s National Research Centre for Data Analytics

FP7 DECIPHER: Digital Cultural Curation

Leveraged Funded Projects

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International Networks

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DRI Platform

Access Preservation

Federated Archives, Storage

Discovery

App App App Linked Logainm

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The Linked Logainm Project • Concept:

• to republish the logainm.ie dataset as Linked Open Data

• allowing it to be reused by computer programmers, app developers, heritage professionals and more..

• Project ran October 2012 – September 2013

• Project outputs

• the Linked Logainm dataset

• the Location LODer demonstrator website

• project report and Using Linked Logainm Guidelines document.

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Logainm.ie

• The authority list of Irish place names, validated by the Place Names Branch of DAHG

• Place names, translations, variants, types, hierarchical structure

• Unique source of Irish language place names – not available in other LODatasets

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The Linked Data Concept

• A method of publishing structured data on the Web, allowing it to be connected and enriched, and facilitating linking between related resources.

• Linked Data standards such as RDF (Resource Description Frameowork) allows semantic definitions to be applied to information, using statements called ‘triples’ in the form subject, predicate, object.

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A key principle of Linked Data is that HTTP URIs are used to name the semantic elements of the dataset

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Automatic links between open datasets

<http://dbpedia.org/resource/Dublin>

owl:sameAs <http://linkedgeodata.org/...> ;

owl:sameAs <http://sws.geonames.org/2964574/> ;

...

<http://sws.geonames.org/2964574>

owl:sameAs <http://dbpedia.org/resource/Dublin>

wgs84_pos:lat ”53" ;

wgs84_pos:long ”-6";

gn:parentCountry <http://sws.geonames.org/2963597/> ;

...

DRI Presentation Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch.

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RDF

RDF N3

RDF JSON

RDF XML

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The Longfield Maps & Linked Logainm URIs

1,570 maps catalogued in MarcXML

- <marc:datafield tag="650" ind1="" ind2="">

<marc:subfield code="a">Land

tenure</marc:subfield>

<marc:subfield code="z">Ireland</marc:subfield>

<marc:subfield code="z">Rathdown

(Barony)</marc:subfield>

</marc:datafield>

- <marc:datafield tag="650" ind1="" ind2="">

<marc:subfield code="a">Land use

surveys</marc:subfield>

</marc:datafield>

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URIs & the NLI Catalogue

• Application of authoritative place name data to catalogue records

• Single URI for the place name:

- Allows users to search in either Irish or English

- Redirects searches for variant place names – “Ceara” or “Cera” will redirect to “Carra”

- Redirects within hierarchy – search for townland not found in the catalogue could redirect to maps for the related barony

• Potential to draw in contextual information from other datasets, eg. current population, meteorological data etc

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http://apps.dri.ie/locationLODer

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Project Outputs

• Linked Logainm dataset, accessible at data.logainm.ie/sparql

• Location LODer demonstrator at apps.dri.ie/locationLODer

• Project reports: narrative report and Using the Linked Logainm dataset

• Upcoming guidelines document for heritage professionals

• Potential to tag DRI demo collections with Linked Logainm URIs

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Thank you!

• Linked Logainm sparql endpoint:

http://data.logainm.ie/sparql

• Location LODer: http://apps.dri.ie/locationLODer

• Digital Repository of Ireland: www.dri.ie

• Email: r.grant@ria.ie