linkedARC.net

European Association of Archaeologists20th Annual Meeting, Istanbul 2014Frank Lynam @flynamTrinity College Dublin

accessing the benefits ofOpen Data practice within archaeology

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Priniatikos Pyrgos

#PriniatikosPyrgos

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Edith Hall and Vrokastro

Edith Hall Dohan at Vrokastro (www.brynmawr.edu)

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The site reinvestigated

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The life cycle of the Priniatikos Pyrgos data

#FileMaker

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The move towards Open Data

#OpenData

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Open Data:the options

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The 5 Stars of Linked Open Data

put your data online under an open license

make it structured (e.g. as an Excel file)

use non-proprietary formats (e.g. XML and not Excel)

use URIs to identify resources

link your data to external datasets

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RDF realises theLinked Open Data

philosophy

#RDF

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Two types of data

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Mapping table data to graph data

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Creating the data model or ontology

#ontology

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The CRM model options

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The context model

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The linkedARC.net ontology extension

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Mapping the source data to your model

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Cleaning the data fields

#dataclean

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rdfdatautils.linkedarc.net

#rdfdatautils

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Value mapping

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Structured vocabularies

#SKOS

ALTAR VESSEL

BT : RELIGIOUS OR RITUAL CONTAINER

BT : RELIGION OR RITUAL

NT : ALTAR VASE

SN : A container used upon the altar.

ALTIMETER

BT : MEASUREMENT

SN : An instrument for measuring height above sea level.

ALUDEL

BT : TOOLS AND EQUIPMENT

SN : An object used in the sublimation process. It is pear

shaped with both ends open.

Fish Archaeological Objects Thesaurus(heritagedata.org)

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Number scale normaliser

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rdfdatautils.linkedarc.net code

#Bitbucket

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Bringing it all together with Google refine

#OpenRefine

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Hosting your triple data

#AmazonEC2

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Data mining the Priniatikos Pyrgos dataset

PREFIX ecrm: <http://erlangen-crm.org/110404/>PREFIX crmeh: <http://purl.org/crmeh#>

SELECT ?contextname WHERE { ?context a crmeh:EHE0007_Context . ?context ecrm:P87_is_identified_by ?contextname . ?context ecrm:P89_falls_within ?trench . ?trench ecrm:P87_is_identified_by "Trench 1"} LIMIT 100

#SPARQL

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Asking valuable questions

Q: Give me all the 5th C open-vessels found at the site

#DigitalHumanities

Q: Did any occur alongside ash deposits?

Q: Give me the weights of the animal bones found in each of these contexts

Et cetera

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Conclusions

1. Going Linked Open Data presents a number of options and challenges

2. Making an archaeological dataset LOD-compliant is not a trivial matter

3. But the rewards far outweigh the costs both in the short term for your own project data needs and in terms of making your project data relevant in the years to come

Teşekkür ederim

Digital Arts and Humanities PhD programmePRTLI funded

Dep. of Classics, Trinity College Dublin

Dr Christine Morris

The Priniatikos Pyrgos Project

Dr Barry Molloy and Dr Jo Day

http://www.franklynam.com

http://www.linkedarc.net

http://rdfdatautils.linkedarc.net/

https://bitbucket.org/flynam/rdfdatautils

@flynam

flynam@tcd.ie