GeoSPARQL+: Syntax, Semantics and System for Integrated Querying of Graph, Raster and Vector Data -- Technical Report

TL;DR

This paper extends GeoSPARQL to include raster data, enabling integrated querying of graph, raster, and vector data within the Semantic Web, supported by a prototype implementation and real-world use cases.

Contribution

It introduces new syntax, semantics, and system support for raster data in GeoSPARQL, enhancing geospatial data integration and querying capabilities.

Findings

Successful extension of GeoSPARQL for raster data

Prototype implementation demonstrates feasibility

Use cases validate practical applicability

Abstract

We introduce an approach to semantically represent and query raster data in a Semantic Web graph. We extend the GeoSPARQL vocabulary and query language to support raster data as a new type of geospatial data. We define new filter functions and illustrate our approach using several use cases on real-world data sets. Finally, we describe a prototypical implementation and validate the feasibility of our approach.