SOCoP Workshop 2010 Discussion Notes Frameworks, Vocabularies, Demos

Vocabularies E.g W3C Geo XG – formed GEO vocabularly and imagined 5 others. VoCamp – feature-geometry, relationship, POI, events vocabularies sketched out GeoSPARQL – feature-geometry, relationship vocabularies. Next? Event? Sensor? Connectonomy (mereotopology)?,

Methodology Choose domain Compose / steal in RDF Lift into OWL? Coordinates as WKT? Stepping back – vocamp experience to build guidelines. TAO of URI’s – Granularity? Does hierarchical naming help? Is there a danger in exploiting the URI structure? – Place no barriers to changing URI’s but never do it… Decidability versus resonance…resonant cleanliness? Minimalism -> tractability…microtheories

Methodology, cont’d Bottom-up alone has issues (consistency…) – Recommended upper or utility ontologies Tools for vocabulary reuse Overlap is good! Unless it’s confusing.

Reference Model Vocabulary standardization guidelines. Value in “ontologizing” OGC concepts (UML, XML Schema, text)? GeoSPARQL as focal point for priorities Semantic mediation + linked data +? – ? Reasoning ? – Selection of layer – filter – symbolization – scale …

Implementations Cross-vocabulary visualization / exploration Query expansion GeoSPARQL implementation (OGC policy – at least 2 implementations before specification approval) Cross-vocabulary GeoSPARQL experience.

Demonstrations Query across multiple domain vocabularies OWS-8 “Look-aside” versus “Pass-through” semantic queries. Operation of vocabulary formation “process” Essential queries (small-number-of)

Actions Merged concept for OWS-8, AIP-4, SOCoP demos. Develop & maintain the vocabulary development best practices. Prizes for creating the most same-as triples. Use existing tools and USGS linked data to create and publish derivative services. Publish page of existing tools available for use. Leverage INTEROP and create educational resources.