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Linked Data Geo Vocabulary Background GeoVoCampDC2011 03 June 2011 Todd Pehle

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Presentation on theme: "Linked Data Geo Vocabulary Background GeoVoCampDC2011 03 June 2011 Todd Pehle"— Presentation transcript:

1 Linked Data Geo Vocabulary Background GeoVoCampDC June 2011 Todd Pehle

2 Linked Data Geo Vocabularies The Need for Geo Vocabularies in Linked Data The Lack of Geo Vocabularies in Linked Data The Linked Locations Story So Far How GeoVoCampDC2011 Can Help

3 Orbis Technologies, Inc. 3 The Need For Geo Vocabularies in the Web of Linked Locations Linked Data + Location Data = Linked Locations Web of Linked Locations: A spatiotemporal projection of the Web of Linked Data (a global spatial KB) Web of Linked Locations: Horizontally interlinks the Geo Web & vertically links the Semantic Web & Geo Web To build a Web of Linked Locations we need: –Linked Data –Geo Data –Query Language (GeoSPARQL) –Tools –Last but not least… A minimal core set of geo vocabulary Building Blocks

4 Building the Worlds Spatial KB Geo Web has base vector layers (GIS Data) to be connected to Web of Linked Data. Linked Locations inter-connects Geo Web features & bridges Linked Data with Geo Web. Linked Data exposes thematic attribution & relationships of Linked Locations. Linked Data + Geo Web Geo Web Links (horizontal links) (vertical links)

5 FOAF = Person Organization Ontology = Organizations OWL-Time = Time Event Ontology = Events (sort of) SIOC = Linking online communities, wikis, blogs, etc. SKOS = Thesauri, classification schemes, taxonomies Dublin Core = Authoring Metadata VOID = Vocabulary Of Interlinked Data (Dataset metadata) Provenance Vocabulary = Lineage, provenance The Lack of Geo Vocabularies in the Web of Linked Data W3C Basic Geo = 1 Geo Model (GeoSPARQL soon)

6 The Linked Locations Story So Far 2006: TimBL posts Linked Data principles 2006: W3C Geo XG Incubator Group – Produced GeoRSS variant and identified: Features, Types, Toponyms, Spatial Relations, CRS, Metadata, Web Services 2009: NeoGeoVoCamp – GeoSPARQL conceptually introduced, reviewed GeoXG, created 9-I model : GeoSPARQL (OGC) – Produced minimal geographic feature/geometry plus spatial topology relationships model 2011: GeoVoCampSouthampton – Scale vocabulary, Nearness vocabulary, Geometry vocabulary, ISO 19115/19139 Metadata, Temporal vocabulary 2011: GeoVoCampDC2011 – Produced ???

7 GeoVoCampDC2011 Geo Vocabs What about where do we want to review, extend, create? Potential ideas for domain-independent modeling: –Review & Identify any needed extensions to GeoSPARQL since it will be a core component (additional semantics or other relations) –Review GeoVoCampSouthampton2011 vocabularies; align with GeoSPARQL –How to align W3C Basic Geo? –Points Of Interest Model: Lightweight feature type/toponym model used to construct/extend feature types (vs. fully define) –Survey/build/extend an events/spatiotemporal model that aligns with GeoSPARQL –Equivalence/disambiguation/similarity links for geographic features –GeoProvenance/GeoVOID –Linked Data Best Practices for modeling semantics of multi-part geometries, linear referencing, GPS tracks, routing, others?

8 Goal: The Linked Locations Core? GeoSPARQL Spatial Relations Events Feature Types Geometry

9 Topics: –W3C Basic Geo work –SWEET Overview –Topography & Landforms Modeling –ODPs –Bottom-up Methodology / Clustering –Triplifying GeoData –POI/Placename –Land Use Ontology –Geometry Vocab Review/Southampton Vocabs –OSM / LGD –GeoNames/Gazetteer issues


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