Land-titling programs in low-income nations have provided the opportunity to leverage the application of geospatial technology to support low-cost titling and expedite implementation. The spatial data acquired and managed in land administration is often a cornerstone of a broader spatial data infrastructure (SDI) in a country. Geospatial technology use in land titling is often viewed narrowly i...

Geospatial datacubes are the database backend of novel types of spatiotemporal decision-support systems employed in large organizations. These datacubes extend the datacube concept underlying the field of Business Intelligence (BI) into the realm of geospatial decision-support and geographic knowledge discovery. The interoperability between geospatial datacubes facilitates the reuse of their co...

Input/output (I/O) of geospatial raster data often becomes the bottleneck of parallel geospatial processing due to the large data size and diverse formats of raster data. The open-source Geospatial Data Abstraction Library (GDAL), which has been widely used to access diverse formats of geospatial raster data, has been applied recently to parallel geospatial raster processing. This article first...

Today’s organizations often gather large quantities of geographic and geo-spatially referenced data to support business decision-making. While there has been research into the significance of user characteristics on decision-performance when working with geospatial data, there is conflicting knowledge on the necessity of the geospatial reasoning ability of the decision-makers to ensure that eff...

The Joint Training Data Services (JTDS) is a web-based set of services that provide Modeling and Simulation (M&S) ready data and scenario development tools to the DoD Enterprise to support Joint and Service theater level constructive & virtual training. JTDS provides persistent web access to an Order of Battle Service and a Terrain Generation Service (TGS) that leverage unique data repositories...

Recent advances in Web-related technologies have significantly promoted the wide sharing and integrated analysis of distributed geospatial data. Geospatial applications often involve diverse sources of data and complex geoprocessing functions. Existing Web-based GIS focuses more on access to distributed geospatial data. In scientific problem solving, the ability to carry out geospatial analysis...

Geospatial semantics is a broad field that involves a variety of research areas. The term semantics refers to the meaning of things, and is in contrast with the term syntactics. Accordingly, studies on geospatial semantics usually focus on understanding the meaning of geographic entities as well as their counterparts in the cognitive and digital world, such as cognitive geographic concepts and ...

Recent developments in Web service technologies and the semantic Web have shown promise for automatic discovery, access, and use of Web services to quickly and efficiently solve particular application problems. One such application area is in the geospatial discipline, where Web services can significantly reduce the data volume and required computing resources at the end-user side. A key challe...

We propose an OBDA approach for accessing geospatial data stored in relational databases, using the OGC standard GeoSPARQL and R2RML or OBDA mappings. We introduce extensions to an existing SPARQL-to-SQL translation method to support GeoSPARQL features. We describe the implementation of our approach in the system ontopspatial, an extension of the OBDA system Ontop for creating virtual geospatia...