#Geospatial Index Improvements for Apache Jena #GeoSPARQL will be available in the next version: https://github.com/apache/jena/issues/3026

#KnowledgeGraph #SemanticWeb

Spatial Index improvements (index-per-graph + kryo) · Issue #3026 · apache/jena

Version 5.4.0-SNAPSHOT Feature This proposal is to enhance the spatial index with support for index-per-graph as well as to improve its serialization using kryo - via Apache Sedona's kryo/jts imple...

GitHub

1/2 The Spatio-Temporal Data on the Web Working Group (#SDWWG) of the World Wide Web Consortium (#W3C) was recently re-chartered. The next two years I will be co-chairing this group with Rob Atkinson (#OGC).

There is a great deal brewing up in the #GeoSemantics space, to name just a few:
- #SOSA 2.0
- #GeoDCAT
- #WebVMW
- An #Ontology for Coordinate Reference Systems (#CRS)
- A #3D extension for #GeoSPARQL

Join in!

https://lists.w3.org/Archives/Public/public-sdw-wg/2025Feb/0002.html

(Fwd) Call for Participation: Spatio-temporal Data on the Web Working Group Charter approved; Join the Spatio-temporal Data on the Web Working Group from Coralie Mercier on 2025-02-06 (public-sdw-wg@w3.org from February 2025)

5. Widgets Wednesday #5 :
#Sparnatural map widget 🗺️

Allows to select a rectangle on a map to generate a corresponding #GeoSPARQL query. The data in the triplestore must be encoded with literal values using the #wktLiteral datatype.

See the documentation :
https://docs.sparnatural.eu/widgets.html#map-widget

Sparnatural

Sparnatural : visual knowledge graph explorer with SPARQL, in the browser, configurable with SHACL

Sparnatural
< rdfs:label "GeoLD2014 Introduction" . #LOD #LinkedData #SemanticWeb #GeoSpatial #RDF #BigData #NewSQL #GeoSPARQL

Today the third draft of the 𝗦𝗽𝗮𝘁𝗶𝗮𝗹 𝗟𝗶𝗻𝗸𝗲𝗱 𝗗𝗮𝘁𝗮 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘀 book made it on-line.

This new version is primarily an expansion to conform with #GeoSPARQL 1.1. Novel content also on #SimpleFeatures and #MetaData, plus the odd correction and bug fix.

Your path to #FAIR with #OGC and #W3C standards.

https://linked-sdi.com/

#SemanticWeb #LinkedData #RDF

Spatial Linked Data Infrastructures

#rdf #knowledgegraph users, do you know how prevalent the usage of the OGC #geosparql ontology and associated #sparql engines that support it are ?

Tomorrow I am travelling to Crete to attend the #ESWC2024. Sunday, during the #GeoLD workshop, I will be presenting the #GloSIS web ontology. Also in the #GeoLD I am co-authoring a position paper making the case for a #SemanticWeb standard for #CoordinateSystems.

https://i3mainz.github.io/GeoLD2024/

#LinkedData #SoilData #GeoData #CRS #GeoSPARQL

GeoLD2024 6th International Workshop on Geospatial Linked Data

GeoLD2024, the 6th International Workshop on Geospatial Linked Data at Extended Semantic Web Conference 2024, Hersonissos, Greece

A new draft of the 𝗦𝗽𝗮𝘁𝗶𝗮𝗹 𝗟𝗶𝗻𝗸𝗲𝗱 𝗗𝗮𝘁𝗮 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘀 book is out. Many improvements and expanded content on Ontology, Meta-data, URI minting and more. Your path to #FAIR with #OGC and #W3C standards.

https://linked-sdi.com/

#LinkedData #SemanticWeb #GeoSPARQL #SDI

Spatial Linked Data Infrastructures

Standardization of textures for geometries · Issue #438 · opengeospatial/ogc-geosparql

Observation An increasing number of linked data users are building 3D Digital Twins with GeoSPARQL. In a 3D Digital Twin, the textures that are displayed on top of the geometries are often importan...

GitHub

On the menu for the #FOSS4G2023 code sprint:
- Add pyproj to the #GeoPython workshop
- #GRASS pull requests and issues
- Test SPARQL Unicorn, a #GeoSPARQL plug-in for #QGIS
- Test #BBOX

No promises on how far I can go 😀