Re: geospatial sparql

Hi Marco,

We are very interested in hearing about existing implementations and hearing about Jena would be very welcome!

There is already one mention of a Jena GeoSPARQL extension in our doc, but it might very well be a different one from the work you are indicating.

It would be great if you could take a look at our work in progress, which is open on Github: https://github.com/opengeospatial/geosemantics-dwg


You are very welcome to explore what’s there and to contribute directly (by adding issues or doing pull requests) if you can.

Joseph (in cc) is leading on this work.

Linda


On 27 Nov 2019, at 14:05, Marco Neumann <marco.neumann@gmail.com> wrote:


Hi Linda,

thanks for checking in. I am the creator of the first GeoSPARQL implementation for Jena which predates the OGC GeoSPARQL by a couple of years. FYI the Jena project now aims to support and extend OGC GeoSPARQL with the http://jena.apache.org/documentation/geosparql/ implementation.

I would be very interested to have you include the Jena GeoSPARQL implementation in your evaluation.

Best,
Marco




On Wed, Nov 27, 2019 at 12:30 PM Linda van den Brink <l.vandenbrink@geonovum.nl<mailto:l.vandenbrink@geonovum.nl>> wrote:
Hi all,

I wanted to point out that in the geospatial community, there is a standardized extension of SPARQL, called GeoSPARQL (a standard by the Open Geospatial Consortium (OGC)).  I’m part of a coordinated effort at OGC to gather change requests for this standard and to bundle this in a document explaining the benefits of representing geospatial data using semantics and graph technologies, and subsequently outlining some shortcomings of the existing GeoSPARQL implementation specification that, if addressed, would unlock its potential to a greater extent.

I do not know if geospatial requirements for SPARQL have at all been considered within the SPARQL 1.2 community group. If this is of interest, I’m happy to provide a bridge between this group and the GeoSemantics group at OGC.

Linda van den Brink
Chair Spatial Data on the Web Interest Group (W3C)
Chair GeoSemantics DWG (OGC)


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Marco Neumann
KONA