GeoSPARQL Standards Working Group Meeting Minutes

Meeting Details

Meeting Date: 21/04/2021

Meeting Time: 2030 UTC

Meeting Location: GoToMeeting

Attendees

Attendee Moniker
Joseph Abhayaratna JA
Timo Homburg TH
Frans Knibbe FK
Matthew Perry MP
Nicholas Car NC
Paul Cripps PC
Gabriela Wiersma GW

Note Takers

  • JA

Action Items From Last Meetings

Done? Item Responsible Due Date
Y Create a task list of outstanding terms that need definitions, and the group will work together to address the task list FK Next Meeting
N Working with University of Polytechnic (Madrid) and the Open Data Institute, who have create a resource for publishing semantically available licenses NC Next Meeting
Y Publish links to the Github repository in both GeoSPARQL standard landing page and the GeoSPARQL SWG landing page JA Next Meeting
N Will add some examples for spatial resolution range to Annex B, and use to drive feedback SC Next Meeting
Y Making a list of functions from Simple Features spec PV Next Meeting
Y Work outlined in the requirements from loc-I project ticket is done, but there is outstanding work added during the commentary of the ticket that needs to be captured in a new issue NC Next Meeting

Discussion Items

Time Item Who Notes
2030 Intro JA Call for Patents
- None known

Roll Call
- Attendees recorded in minutes
- Attendees confirmed vocally
2037 Issue Discussion JA Issue: Include all functions already described in Simple Features for SQL #11
- Table created by TH
- Discovery work complete.
- Removing Discovery label, shifting to Done in iteration 1 project, added to Non-normative project.
- Assigned to JA to add to Annex C (make generic, and add table)
Issue: Additional GeoSPARQL requirements from Loc-I project #33
- Let’s get approval from the requestor to close this issue (Simon Cox)
Closed completed issues
2048 OGC Naming Authority FK Question: Does the OGC Naming Authority have document links for their specifications?
Answer (NC): Believe that every specification now has a persistent identifier. OGC Documents. http://www.opengis.net/def/docs
2101 GeoLD Workshop Paper NC NC/TH Paper accepted by GeoLD Workshop in the European Semantic Web Conference
FK position paper also accepted by the workshop.
NC Paper also accepted by the workshop. Talks about GeoSPARQL 1.1 proposed standard in use.

GeoSPARQL Compliance Benchmark TH Presentation of GeoSPARQL benchmark: what and when? Nothing new to report.
2117 Review of new issues JA - Comments on issues of 1.1 versus 2.0
- NC, KJ, JA: discussion on issue #83 on spatial measures.
- NC we need to push a bit deeper beyond simple comment to address this.
- NC should be 1.1
- Rename SpatialMeasure #103
- KJ Metrically defined topological relations → Egenhofer and Celementini and others have shown for years the need for going beyond crisp RC8 relations and they may be worth investigating at some stage. Maybe 1.2
- FK: #43 multi-language support → content negotiation
- PI Yes to content negotiation
- NC, JA, KJ: how to support different languages in the GeoSPARQL ontology.
- NC: just annotations so far. There is more here and a lot of research would have to go into this.
- MB: To keep in sync only update other languages than English after milestones.
- RG: Are there any parallels with the TC211 multi-lingual glossary of Terms and the supporting software geolexica? cf https://www.isotc211.org/ for lunks to both
- NC +JA: Do it for 1.1
- KJ to do Polish and German
- FK: to do Dutch
- GW: to do Portuguese
- FK: #42 → moved to discovery and 1.2 or 2.0
- MB+JA: How do we deal with RDF* and SPARQL* → moved to questions
- More on geometries and their representation beyond literals → 2.0
- MB #26 FK widen applications beyond geographic data (3D, any geometry format, binary formats). Might need to implement a restriction to max 1 serialisation per geometry instance (breaking change) for adding metadata (SRS, number of vertices, etc.) regarding the geometry serialisation. -> 2.0
2137 GeoSPARQL Compliance Benchmark Software Paper TH Paper that describes the GeoSPARQL Benchmark software in detail: https://www.sciencedirect.com/science/article/pii/S2665963821000191?via=ihub
2140     MEETING ENDS

Action Items

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