Towards a Graph of Ancient World Data & an Ecosystem of Gazetteers
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Transcript of Towards a Graph of Ancient World Data & an Ecosystem of Gazetteers
Pelagios 3Towards a Graph of Ancient World Data &an Ecosystem of Gazetteers
Elton Barker @eltontebThe Open University
Rainer Simon @aboutgeoAustrian Institute of Technology
Leif Isaksen @leifussUniversity of Southampton
July 8, 2014, Lausanne, Switzerland
…or any other online resource that bears a relation to a particular ancient place!
InscriptionsTexts
ArchaeologicalFinds
MuseumObjects
ArchaeologicalSites
Pelagios | Linking Data, Openly
39 partners from 6 countriesca. 830.000+ annotations
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A Brief History of Pelagios | Pelagios 1 & 2
How? | Don’t Unify the Model – Annotate!
Pleiades:
579885
Pleiades:
570685
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Ancient WorldResources
PleiadesGazetteer
Pelagios
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A Brief History of Pelagios | Pelagios 3
2 year project (Sep 2013 – Aug 2015) Funded by Andrew W. Mellon Foundation Annotation of geographic documents
predating 1492 (maps and texts)
Traditions Latin Greek & Byzantine Portolan charts & portolanos Christian Tradition Islamic Tradition Chinese Tradition
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by Romana Klee CC BY-SA 2.0
Growing the Graph | #1 Annotation
Associating Documents with Places.
810.12.2009
Growing the Graph | Recogito Annotation Tool
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Growing the Graph | #2 Linking Gazetteers
pleiades:423025
dare:1438
trismegistos:2058
wikidata:Q3094657
dai:2090320
Associating Places with Places (in different gazetteers).
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China Historical GIS …
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Connecting Gazetteers
Pelagios is a gazetteer user
Pelagios is not a maintainer or aggregator of gazetteers
PS: Should we unify rather than align? We don‘t think so!
Good reasons for diversity! Coverage, granularity, focus, scholarly quality, community, …
Pelagios 3 defined an RDF profile (or »specification«) for
1. publishing links between places in different gazetteers online
2. publishing minimal place metadata online
So that we search at all! So that we can make connections and cross-search.
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PLACES
INDEX
ITEMS
DB
PELAGIOS API
INGEST & ADMINISTRATION
»indexed units«are place groups
Unified fulltext searchacross both indices
Fuzzy search support Spatial indexing Facet support
Items(referencing places)
Datasets(containing items)
Annotations(building the links)
Various aggregation and lookup tables(to speed things up)RDF
»Pelagios Annotations«
RDF
Gazetteer Metadata
JSON(P) + CORS HTML
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API
Keyword search Items in dataset, sub-items in item Places per dataset, per item Temporal profile of dataset Subsets in dataset closeMatch-network for place Datasets per place (with or without closeMatches)
WORK IN PROGRESS!
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Q & A
http://pelagios-project.blogspot.co.uk@Pelagiosproject