With the exponentially growing earth observation data of specific sensor-determined
resolutions and update frequencies, earth observation has irreversibly arrived in the Big …

Geographic data have become abundantly available in the recent years due to the
widespread deployment of GPS devices for example in mobile phones. At the same time, the …

Knowledge graphs are composed of diverse types of binary relations as distinguished by
edge labels [27]. An individual relation may have specific semantic conditions, for example …

This article presents a geometric algebra-based model for topological relation computation.
This computational model is composed of three major components: the Grassmann structure …

This paper studies the spatial group-by query over complex polygons. Given a set of spatial
points and a set of polygons, the spatial group-by query returns the number of points that lie …

The integral management of facilities located in the subsoil or hidden in walls and ceilings
entails numerous challenges in terms of accurate positioning and data update. We describe …

Analyzing how species are distributed on the Earth has been one of the fundamental
questions in the intersections of environmental sciences, geosciences and biological …

This article responds to the widespread and oft-noted challenges digital humanists face in
working with data that is uncertain and characterised by complex narratives. Using an …

Spatial regions are a fundamental abstraction of geographic phenomena. While simple
regions—disk-like and simply connected—prevail, in partitions complex configurations with …

This paper describes a point-polygon query program we submitted to the ACM SIGSPATIAL
Cup 2013. Point-polygon topological relationship query is one of the core functions for …