Open GIS Consortium (OGC) Geospatial Web services have been introduced to overcome spatial non-interoperability problem associated with most geospatial processing systems. Although OGC geospatial Web services provide interoperability among heterogeneous geospatial processing systems, in some cases they can not provide required performance and efficiency. This paper proposes a hybrid architectur...

The constant need for updated and accurate representation of our natural environment, which can be produced from various mapping and observation tools, is one of the major missions the geoinformation community has to provide a solution for. Digital Terrain Model (DTM) datasets that exist for the last few decades are amongst the main geospatial data widely used and applicable. Light Detection an...

Geographic Information System (GIS) is one of the important elements of the IT infrastructure of local governments. In recent years, in the consequence of development of Web-based GIS technology, the definition of GIS has been changing to “Geospatial Information Service”. For a local government, the geospatial information service is becoming an important IT system in the field of information se...

Geospatial clustering is an important method for geospatial information analysis. However, most clustering methods do not consider semantic information during the clustering process. In this paper, we present a formal geospatial clustering ontology framework, which can provide the background for geospatial clustering. Using the ontology, geospatial clustering can become a knowledge-driven process.

In the recent past there have been significant research and industrial efforts to support access to large amount of geospatial data sources. Examples of industrial efforts include different data access standards proposed by the Open Geospatial Consortium (OpenGIS)1 and the availability of satellite imagery and other data on websites, such as TerraServer2. In order to better understand the resea...

This research-in-progress analyzes the impacts of geospatial website attributes on eImage, or the online image of an organization. Specifically, geospatial attributes on websites of serviceoriented businesses that must convince consumers to visit their physical locations are addressed. Limited existing research regarding geospatial website attributes provided the motivation to conduct this stud...

Over the last years, thanks to Open Data initiative and the Semantic Web, there has been a vast increase on user contributed data. In several cases (e.g. OpenStreetMap, Geonames), the respective data include geospatial information, that is the coordinates and/or the precise geometries of buildings, roads, areas, etc. In such cases, proper schemas are defined to allow users to annotate the entit...

A wide variety of systems from many different fields use geospatial data to represent physical environments. These systems, and the data on which they operate, are not only becoming more complex, but they are increasingly being connected together. Although each system may be interested in very different aspects of the environment, the geospatial data they use must be consistent and correlated w...

Flow maps are widely used to provide an overview of geospatial transportation data. Existing solutions lack the support for the interactive exploration of multiple flow components at once. Flow components are given by different materials being transported, different flow directions, or by the need for comparing alternative scenarios. In this paper, we combine flows as individual ribbons in one ...