Improving geospatial query performance of an interoperable geographic situation‐awareness system for disaster response

Towards Improving Query Performance of Web Feature Services (WFS) for Disaster Response

While OGC’s WFS facilitates disseminating heterogeneous spatial data over the Web and allows feature-level geospatial information sharing and synchronization, performance issues challenge the efficient and effective utilization of WFS for disaster response. Literature shows that obtaining spatial information becomes very slow when querying WFS systems from large geospatial databases over the In...

TerraFly Geospatial System for Disaster Mitigation

Florida International University’s (FIU’s) secondphase CREST, the Center for Innovative Information Systems Engineering is housed in its School of Computing and Information Sciences and its Department of Electrical and Computer Engineering. The Center’s four research thrusts bring together a multidisciplinary group of researchers, large-scale collaborative relationships, and a broad ecosystem o...

an Interoperable Portal supporting Prototyping Geospatial applications

Earth observations and simulation results can be integrated with decision-support tools to support geospatial applications of national and international interest. Traditional methods of application development through tightly coupled components can no longer satisfy increased demands and urgently needed geospatial applications, such as disaster management. We examine the life cycle of such inte...

Ontology-Based Geospatial Web Query System

1. Introduction This abstract describes our system that provides DBMS type querying over heterogeneous geospatial data sets distributed over the Web. Our work contributes to the Semantic Web and to geospatial interoperability. Our work is done in the context of a proposed statewide land information system, which will consist of both spatial and nonspatial data that remain on local servers. One ...

Ontology-Based Geospatial XML Query System