Usability and usefulness of geospatial metadata are important success factors in spatial data infrastructures. However, current metadata services concentrate on discovery of geographic datasets and largely ignore users’ needs to evaluate and compare datasets in order to select suitable data for intended uses. This paper reports a user study in a geospatial metadata environment that combined dif...

As Web services technology has matured in recent years, an increasing amount of geospatial resources and processing functions are available in the form of online Web services. Consequently, effective and efficient data processing methods for geospatial information extraction and knowledge discovery over the Web are a major challenge for research and industry. The Geoprocessing Web, which consis...

As geospatial data grows explosively, needs for the incorporation of data mining techniques into Geographic Information Systems (GISs) are in great demand. Association rules mining is a core technique in data mining and is a solid candidate for the cause-effect analysis of large geospatial databases. It efficiently detects frequent asymmetric causal patterns in large databases. In this paper, w...

This paper introduces a new concept, distributed geospatial information processing (DGIP), which refers to the process of geospatial information residing on computers geographically dispersed and connected through computer networks, and the contribution of DGIP to Digital Earth (DE). The DGIP plays a critical role in integrating the widely distributed geospatial resources to support the DE envi...

There is an increasing interest in agent-oriented technology, spanning applications as diverse as information retrieval, user interface design and network management. Application of intelligent agents in the GIS environment is actively being explored. Many different types of agents are being employed to improve usability of GIS software as well as users access to geospatial data and services av...

The Web today is considered to be a sheer unlimited resource of interlinked information which can be explored following links or can be found employing keyword-based search engines. A feature that becomes more and more relevant for our search and use of the Web is the geospatial reference of information. In this paper, we understand the Web as a vast geospatial information space in which most o...

ion geospatial domain ontology Figure 2: The distinction between three types of concepts leads to geospatial domain ontologies which are not biased by implementation needs. For example, a town is often represented as a point feature in geospatial applications. But in the first place, the “real world” town has no ontological relation to the representational structure of a point. The domain of ge...

This issue contains papers selected from the contributions presented at the 1st International Cartographic Association (ICA) Workshop on Geospatial Analysis and Modeling held in Vienna on the 8th of July, 2006 (http://www.hig.se/~bjg/ica/workshop/). The theme papers demonstrate partially recent developments in geospatial analysis and modeling for uncovering knowledge for various applications. T...

UNLABELLED We present a REST web service to assess the geospatial quality of primary biodiversity data. It enables access to basic and advanced functions to detect completeness and consistency issues as well as general errors in the provided record or set of records. The API uses JSON for data interchange and efficient parallelization techniques for fast assessments of large datasets. AVAILAB...

In 2009, a paper was published suggesting that watersheds provide a geospatial platform for establishing linkages between aquatic contaminants, the health of the environment, and human health. This article is a follow-up to that original article. From an environmental perspective, watersheds segregate landscapes into geospatial units that may be relevant to human health outcomes. From an epidem...