User-generated content, interoperability and the social dimension are the cornerstones of an
emerging paradigm for the creation and sharing of information: Web 2.0. This article studies …

Α web-based Geographic Information Systems (GIS) platform–named Virtual Fire–for forest
fire control has been developed to easily, validly and promptly share and utilize information …

Geoportals have been widely implemented by national spatial data infrastructures (NSDI) to
provide users with the ability to search for geospatial resources over the Internet. This paper …

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 …

During a catastrophic event, the International Charter 1" Space and Major Disasters" is
regularly activated and provides the rescue teams damage maps prepared by a photo …

The monitoring and forecasting of environmental conditions is a task to which much effort
and resources are devoted by the scientific community and relevant authorities …

Loose programming enables analysts to program with concepts instead of procedural code.
Data transformations are left underspecified, leaving out procedural details and exploiting …

The sharing of geographical analysis models is of crucial importance for simulating
geographic processes and phenomena in the current geographical information systems (eg …

Geoportals provide integrated access to geospatial resources, and enable both authorities
and the general public to contribute and share data and services. An essential goal of …

Spatial data infrastructure (SDI) is the infrastructure that facilitates the discovery, access,
management, distribution, reuse, and preservation of digital geospatial resources. These …