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Linked Logainm: Enhancing Library Metadata using Linked Data of - - PowerPoint PPT Presentation

Dec 18, 2022 284 likes •595 views

Digital Enterprise Research Institute www.deri.ie Linked Logainm: Enhancing Library Metadata using Linked Data of Irish Place Names Nuno Lopes Rebecca Grant Brian Raghallaigh Eoghan Carragin Sandra Collins Stefan Decker September

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Digital Enterprise Research Institute www.deri.ie

Enabling networked knowledge

Linked Logainm: Enhancing Library Metadata using Linked Data of Irish Place Names

Nuno Lopes Rebecca Grant Brian Ó Raghallaigh Eoghan Ó Carragáin Sandra Collins Stefan Decker September 26, 2013

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logainm.ie

The authority list of Irish place names, validated by the Placenames Branch. Delivering a more detailed level than in DBpedia, Geonames. Unique source of Irish language place names

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logainm.ie

The authority list of Irish place names, validated by the Placenames Branch. Delivering a more detailed level than in DBpedia, Geonames. Unique source of Irish language place names But.. not easily accessible automatically

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The NLI Longfield Map Collection

The Longfield Maps are a set of 1,570 surveys carried out in Ireland between 1770 and 1840. Currently catalogued in MarcXML Integrating Logainm data into their workflow:

for enabling searching for place names in Irish using Linked Data

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Longfield Map example

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Longfield Map example

MARC/XML

<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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Approach for creating the dataset

1 Translate Logainm database dump into RDF 2 Determine links to other datasets based on:

Place names Type Geographical coordinates Hierarchy of places

3 Evaluation of generated links 4 Library catalogue enhancement 4 / 13

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Overview of GLD

Providers:

DBpedia

Exported from Wikipedia

LinkedGeoData

Exported from OpenStreetMap

GeoNames

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Overview of GLD

Providers:

DBpedia

Exported from Wikipedia

LinkedGeoData

Exported from OpenStreetMap

GeoNames GeoLinkedData Ordnance Survey

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Overview of GLD

Providers:

DBpedia

Exported from Wikipedia

LinkedGeoData

Exported from OpenStreetMap

GeoNames GeoLinkedData Ordnance Survey

Vocabularies:

W3C Geo

SpatialThing

NeoGeo

Feature vs Geometry Spatial Relations (is_part_of)

Most providers define their own

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  • 1. Converting Logainm dump to RDF

SPA QL M L X D F R

∼ 1.3M triples Data provided in XML

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  • 1. Converting Logainm dump to RDF

SPA QL M L X D F R

∼ 1.3M triples Data provided in XML Translated to RDF using XSPARQL

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  • 1. Converting Logainm dump to RDF

SPA QL M L X D F R

∼ 1.3M triples Data provided in XML Translated to RDF using XSPARQL Exposed using Openlink Virtuoso

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Linked Logainm

http://lod-cloud.net/ Government Media User-generated Publications Life sciences Cross-domain Geo

Logainm OCLC FAST

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Linked Logainm

http://lod-cloud.net/ Government Media User-generated Publications Life sciences Cross-domain Geo

Logainm OCLC FAST

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Linked Logainm

http://lod-cloud.net/ Government Media User-generated Publications Life sciences Cross-domain Geo

Logainm OCLC FAST

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  • 2. Place name matching using Silk

1 Place Name

Island, Cavan: 2641 "Place"s in DBpedia Airport, Dublin: 7828

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  • 2. Place name matching using Silk

1 Place Name

Island, Cavan: 2641 "Place"s in DBpedia Airport, Dublin: 7828

2 Geographical Location

∼50% of place names in logainm contain geographical information

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  • 2. Place name matching using Silk

1 Place Name

Island, Cavan: 2641 "Place"s in DBpedia Airport, Dublin: 7828

2 Geographical Location

∼50% of place names in logainm contain geographical information

3 Name of the county / parent place

name

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  • 2. Place name matching using Silk

1 Place Name

Island, Cavan: 2641 "Place"s in DBpedia Airport, Dublin: 7828

2 Geographical Location

∼50% of place names in logainm contain geographical information

3 Name of the county / parent place

name

4 Mapping of types from Logainm to

types in other datasets logainm.ie DBpedia LinkedGeoData Geonames townland Populated Place Locality LCTY, PPLF

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  • 3. Silk results

Entities IE # Links % Links DBpedia1 10,715 1,552 14.5 LinkedGeoData2 36,237 6,611 18 GeoNames3 23,102 8,229 35.5

1Entities of type “Place” or “Feature” 2Entities of type “Node” 3No hierarchy info 4Including internal & Freebase links 9 / 13

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  • 3. Silk results

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 in other datasets Entities # Links % Links DBpedia 873,643 653,7074 74.84 LinkedGeoData 6,251,067 462,098 7,4

1Entities of type “Place” or “Feature” 2Entities of type “Node” 3No hierarchy info 4Including internal & Freebase links 9 / 13

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Evaluation Results

Links Checked Correct DBpedia 1,552 1,552 (100%) 98% LinkedGeoData 6,611 500 (7.5%) 96% GeoNames 8,229 500 (6%) 99% Same place names can be “towns”, “population centre”, and “townland” in logainm.ie. DBpedia contains only one entry:

Adrigole (population centre) and Adrigole (townland) http://dbpedia.org/resource/Adrigole

Similar for LinkedGeoData

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Longfield Map example (Updated)

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Longfield Map example (Updated)

<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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Longfield Map example (Updated)

<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> <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> <marc:datafield tag="651" ind2="7" ind1=""> <marc:subfield code="2">logainm.ie</marc:subfield> <marc:subfield code="a">Rathdown</marc:subfield> <marc:subfield code="0">http://data.logainm.ie/place/283</marc:subfield> </marc:datafield>

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Demo page:

http://apps.dri.ie/locationLODer

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Conclusions

Creation of a new Linked Data geographical Dataset Linking to other publicly available datasets Enhancing of NLI’s MARC/XML records

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Conclusions

Creation of a new Linked Data geographical Dataset Linking to other publicly available datasets Enhancing of NLI’s MARC/XML records

Future work

Improve the Silk matching rules to obtain better matching

Street level matching

Enhancing the NLI’s cataloguing system (VuFind)

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Conclusions

Creation of a new Linked Data geographical Dataset Linking to other publicly available datasets Enhancing of NLI’s MARC/XML records

Future work

Improve the Silk matching rules to obtain better matching

Street level matching

Enhancing the NLI’s cataloguing system (VuFind)

Thank you! Questions?

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