GeoSPARQL Standards Working Group Meeting Minutes

Meeting Details

Meeting Date: 03/05/2025
Meeting Time: 2005–2106
Meeting Location: Microsoft Teams

Attendees

Attendee Moniker
Matthew Perry MP
Arkadiusz Chadzynski AC
Timo Homburg TH
Paul Cripps PC
Joseph Abhayaratna JA

Apologies

  • Nicholas Car (NC)

Absent

  • Vladimir Alexiev (VA)

Note Takers

  • MP

Action Items From Last Meetings

Done? Item Responsible Due Date
⬜ Investigate interest in extending Simple Features to include 3D JA Carried forward
⬜ Follow up with Rob Atkinson on review of 3D primitives NC On hold (Rob on leave)

Discussion Items

Time Item Who Notes
20:05 Roll call and call for patents All
  • Roll call completed.
  • No patents declared.
20:06 Previous actions All
  • No updates from JA or NC.
  • JA reported that Simple Features currently has no chair; Scott Simmons managing interim and planning a call for chairs.
  • Interest confirmed in extending Simple Features to include 3D.
  • JA and TH noted the need for a 3D namespace; TH has created http://www.opengis.net/ont/sf3d#.
  • Agreement that SF‑3D alignment will be required; JA suggested proposing use of this namespace.
  • NC unable to follow up with Rob Atkinson as Rob is on leave.
  • ISO publication update: JA and NC prepared presentation; JA arranging time with Scott, likely at next JAG meeting.
  • NC advised next ISO TC211 meeting is in May (Korea); goal is to complete alignment and formally inform ISO group ahead of that meeting.
20:15 Other updates TH, AC
  • GeoSemantics DWG update: TH presented GeoSPARQL status.
  • K. Jano presented work on foundation ontologies to improve Generative AI for Geo.
  • Rob Atkinson presented on Spatial Data on the Web; need identified for closer W3C–OGC collaboration.
  • Interest expressed in generating specifications from OWL ontologies to reduce text/ontology inconsistencies.
  • TH reported receiving feedback on CRS ontology.
  • Work underway on JSON‑LD contexts and interaction between ontologies and CRS DWG artefacts.
  • TH updated on GeoSPARQL Compliance Benchmark: ~206 queries previously; now expected to exceed 1,000.
  • TH reported queries are created; next step is generating answers.
  • Benchmark referenced: https://situx.github.io/GeoSPARQLBenchmark/
  • AC presented CityRDF webinar using GeoSPARQL to validate land‑use constraints via logical reasoning.
  • AC reported work on separation of appearance properties; separate appearance ontology will remain in CityRDF repo and be imported via a separate namespace.
20:36 Issues and PRs All
  • Issue discussed: https://github.com/opengeospatial/ogc-geosparql/issues/615 — Req 17 of GeoSPARQL 1.0; discussion on documenting supported GML version.
  • TH suggested documenting this via SPARQL service description; MP queried need for additional vocabulary.
  • TH to investigate service description vocabulary; AC to check GML / CityGML namespaces for 3D concepts.
  • Issue discussed: https://github.com/opengeospatial/ogc-geosparql/issues/609 — AC continuing data processing; interest in alignment with GeoSPARQL functions.
  • PR discussed: https://github.com/opengeospatial/ogc-geosparql/pull/616 — AC ready for review and will add a requirement.
  • PR discussed: https://github.com/opengeospatial/ogc-geosparql/pull/611 — work in progress.
  • PR discussed: https://github.com/opengeospatial/ogc-geosparql/pull/537 — MP and NC to review.
  • PR discussed: https://github.com/opengeospatial/ogc-geosparql/pull/536 — MP, VA, and NC to review.
21:02 Other business All
  • Upcoming time change noted: US will move ahead one hour next week.
  • Agreement to keep meeting time unchanged for next week.
21:06 Close All MEETING ENDS

Action Items

# Item Responsible Due Date
1 Investigate RCC25 equivalents (DE‑9IM / Simple Features) All —
2 Follow up with Anthony Cohn PC Carried forward
3 Review recent RCC‑related paper All —