Towards a Graph of Ancient World Data & an Ecosystem of Gazetteers
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Towards a Graph of Ancient World Data & an Ecosystem of Gazetteers

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Presentation from the DH2014Geo workshop at Lausanne, July 8.

Presentation from the DH2014Geo workshop at Lausanne, July 8.

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  • 1. Pelagios 3 Towards a Graph of Ancient World Data & an Ecosystem of Gazetteers Elton Barker @eltonteb The Open University Rainer Simon @aboutgeo Austrian Institute of Technology Leif Isaksen @leifuss University of Southampton July 8, 2014, Lausanne, Switzerland
  • 2. …or any other online resource that bears a relation to a particular ancient place! Inscriptions Texts Archaeological Finds Museum Objects Archaeological Sites Pelagios | Linking Data, Openly 39 partners from 6 countries ca. 830.000+ annotations
  • 3. 3 A Brief History of Pelagios | Pelagios 1 & 2
  • 4. How? | Don’t Unify the Model – Annotate!
  • 5. 5 Ancient World Resources Pleiades Gazetteer Pelagios
  • 6. 6 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
  • 7. 7 by Romana Klee CC BY-SA 2.0 Growing the Graph | #1 Annotation Associating Documents with Places.
  • 8. 810.12.2009 Growing the Graph | Recogito Annotation Tool
  • 9. 9 Growing the Graph | #2 Linking Gazetteers pleiades:423025 dare:1438 trismegistos:2058 wikidata:Q3094657 dai:2090320 Associating Places with Places (in different gazetteers).
  • 10. 10 China Historical GIS …
  • 11. 11 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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  • 16. 16 PLACES INDEX ITEMS DB PELAGIOS API INGEST & ADMINISTRATION  »indexed units« are place groups  Unified fulltext search across 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
  • 17. 17
  • 18. 18 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!
  • 19. 19 Q & A http://pelagios-project.blogspot.co.uk @Pelagiosproject