Digital Enterprise Research Institute
www.deri.ie
Linked Logainm
Dr. Nuno Lopes
Special guests:
Dr. Sandra Collins
Dr. Seathrún Ó Tuairisg
 Copyright 2011 Digital Enterprise Research Institute. All rights
reserved.
Enabling networked knowledge
Mission Statement
Digital Enterprise Research Institute
www.deri.ie
DRI is an interactive trusted digital repository
for contemporary and historical, social and
cultural data held by Irish institutions
Enabling networked knowledge
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Funding
Digital Enterprise Research Institute
www.deri.ie
Exchequer funded; HEA PRTLI 5, €5.2M
RIA (lead), NUIM, TCD, DIT, NUIG, NCAD
Partners: academic, cultural, social, industry
Sep 2011 – Sep 2015
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Services
Digital Enterprise Research Institute
www.deri.ie
Preservation
Access
Sharing, linking
Cultural & Social heritage
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Digital Enterprise Research Institute
www.deri.ie
Story
telling
Platform
Educational
tool
Shared
Services
Policy
Users
dri
Content
Digitisation
e-infrastructure
Preservation
Tools
Enabling networked
knowledge
DRI Presentation
5
Partnership Project
Digital Enterprise Research Institute
www.deri.ie
NLI
DERI
DRI
Fiontar
Place
names
Branch
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Logainm.ie
Digital Enterprise Research Institute

The authority list of Irish place
names, validated by the Place
Names Branch.

Delivering a more detailed level
than in DBpedia, Geonames.

Unique source of Irish language
place names.
www.deri.ie
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The NLI Longfield Map Collection
Digital Enterprise Research Institute
www.deri.ie

The Longfield Maps are a set of 1,570 surveys carried
out in Ireland between 1770 and 1840.

Currently catalogued in MarcXML, using data from
Logainm, Geonames and Dbpedia.

Integrating Logainm data into their workflow.
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Longfield Map example
Digital Enterprise Research Institute
www.deri.ie
<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:subfield code="z">Ireland</marc:subfield>
<marc:subfield code="z">Wicklow (County)</marc:subfield>
</marc:datafield>
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Linked Logainm
Digital Enterprise Research Institute
www.deri.ie
http://lod-cloud.net/
LinkedGeoData
Media
User-generated
Government
Publications
Cross-domain
Logainm
Geo
Life sciences
Logainm
10
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Geographic Data Providers
Digital Enterprise Research Institute

DBpedia




Export of data from OpenStreetMap

Beyond lat/lon (eg, areas as polygons)
GeoNames
Access data as RDF (download as TSV)
GeoLinkedData


Include latitude and longitude for geographic entities
LinkedGeoData


www.deri.ie
Spain
Ordnance Survey

UK
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Geo-Vocabularies
Digital Enterprise Research Institute

W3C Geo



www.deri.ie
SpatialThing, latitude and longitude
NeoGeo (http://geovocab.org/doc/neogeo.html)

Feature vs Geometry

Spatial Relations (is_part_of)
Most providers define their own
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Approach
Digital Enterprise Research Institute
1.
2.
3.
4.
www.deri.ie
Translate Logainm database dump into RDF
Determine links to other datasets based on:
•
Place names
•
Geographical coordinates
•
Hierarchy of places
Evaluation of generated links
Deployment at Logainm.ie
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1. Converting Logainm dump to RDF
Digital Enterprise Research Institute
www.deri.ie
~100,000 place
names
~800,000 triples
http://data.logainm.
ie/1375542
Dublin
http://sws.geona
mes.org/2964574/
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2a. Linking based on Place Names
Digital Enterprise Research Institute
www.deri.ie
Place Name lookup in DBpedia
Airport, Dublin
Hospital, Limerick
7828 “Places” in DBpedia
1217
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2b. Linking based on geographical
coordinates
Digital Enterprise Research Institute
www.deri.ie

~50,000 out of 100,000 place names in Logainm
contain geographical information

According to the Irish Grid Format:

Eg: W 35619 58358
=
lat: 51.77
lon: -8.93
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3. Current status
Digital Enterprise Research Institute

www.deri.ie
Using Silk for discovering links
Entities IE # Links % Links

DBpedia1
10,715
1,552
14.5
LinkedGeoData2
36,237
6,611
18
GeoNames3
23,102
8,229
35.5
# Links
% Links
1Entities
of type
“Place” or “Feature”
2Entities
of type
“Node”
3No
hierarchy info
Links in other datasets
Entities
DBpedia1
LinkedGeoData2
873,643
653,707
74.84
6,251,067
462,098
7.4
4Including
internal &
Freebase links
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Next steps
Digital Enterprise Research Institute

Evaluation of generated links


Links to other datasets (eg, Freebase)
Publishing Linked Data at logainm.ie


Golden set
LIMES vs Silk


www.deri.ie
OpenLink Virtuoso
Using the data:

NLI showcase with Longfield Map Collection

DRI/NUIG Irish Language Collection
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NUI Galway and the DRI
Digital Enterprise Research Institute
www.deri.ie

A DRI Demonstration Project that will showcase wealth of both
the University’s and its external partners’ archives

We will collate, curate and contextualise some content from
our various collections, focusing on unique features of
Ireland’s cultural heritage - on Language, Traditional Music,
Folklore, indigenous maritime heritage

It will show the evolution of the Irish-language, from early
audio recordings of traditional music, through the birth of
Raidió na Gaeltachta in the ‘70s, to its modern manifestation
in broadcast video and audio.
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Contributing Partners on
NUI Galway/DRI Demo
Digital Enterprise Research Institute
www.deri.ie
An
tAcadamh
TG4
Moore
Institute
RTÉ Raidió
na
Gaeltachta
Other
Content
and
Copyright
Holders
NUI Galway
DRI Demo
Project
Huston
School of
Film &
Digital
Media
James
Hardiman
Library
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Why Do This?
Digital Enterprise Research Institute
www.deri.ie
For researchers it opens up datasets for potential
research in the fields of linguistics and socio-linguistics,
literature and folklore, history, social and political
studies, place names, film and media, music and song
 It can function as an educational resource, in language
teaching, history, etc.
 Good collaboration opportunities with external partners
under increasing pressure to open up archives to the
public
 Repurposing legacy material (e.g. Raidió na Gaeltachta
recordings) ensures a public appetite for archives.

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NUI Galway Collections and
Possible Linkages
Digital Enterprise Research Institute
www.deri.ie
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Digital Enterprise Research Institute
1.
2.
3.
4.
www.deri.ie
How can we create a homogenous user-experience
from heterogeneous data-sets?
How can we add value to a contemporary, on-line
digital archive by linking to other on-line datasets?
How can we make an Irish-language archive
accessible in a meaningful way to non-Irish
speakers?
How can we realise the information content in
(Irish-language) audio and video, without relying
solely on descriptive meta-data?
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