We report on the experiments undertaken by the NICTA I2D2 Group as part of GeoCLEF 2006, as well as post-GeoCLEF evaluations and improvements to the submitted system. In particular, we used techniques to assign probabilistic likelihoods to geographic candidates for each identified geo-term, and a probabilistic IR engine. A normalisation process that adjusts term weights, so as to prevent expand...

The Islamic world is one of the most important regions in terms geopolitical competition, focusing on region Southwest Asia geo-economic, geo-strategic and geo-culture. Despite widespread commonalities political geography structural functional terms, interdependence has not been able to move towards convergence, cooperation interaction. One influential variables trends this policies United Stat...

The Global Earth Observation (GEO) Grid infrastructure is an E-Science infrastructure which enables global research activity and drives geosciences to get a significant discovery or achievement in their fields. The main design principal of the GEO Grid system is the open and standard protocol-based architecture. It supports creation of a virtual organization (VO) by integrating data and computi...

Image segmentation is a key prerequisite for object-based classification. However, it is often difficult, or even impossible, to determine a unique optimal segmentation scale due to the fact that various geo-objects, and even an identical geo-object, present at multiple scales in very high resolution (VHR) satellite images. To address this problem, this paper presents a novel unsupervised objec...

Geographic information (also called geo-information, spatial information or geospatial information) plays an increasingly important role in our society. Location Based Services, applications for urban planning, disaster management systems rely on geo-data and in many cases up-to-date geo-information is crucial, e.g. in disaster response systems. In this paper we focus on a special kind of geo-i...

Geo-neutrinos emitted by heat-producing elements (U, Th and K) represent a unique probe of the Earth interior. The characterization of their fluxes is subject, however, to rather large and highly correlated uncertainties. The geochemical covariance of the U, Th and K abundances in various Earth reservoirs induces positive correlations among the associated geo-neutrino fluxes, and between these ...

New generation remote sensing technologies open today new application areas and demonstrate their effectiveness providing geo-information in support to disaster management. In the same time, new challenges can be identified and among them has a crucial role the validation of geo-information under the new specific constraints dictated by the disaster management application area. In the frame of ...