This paper reports our research on utilizing semantic model to improve the searching function within Spatial Web Portals (SWPs). Based on SWEET, We build the domain ontology and implement a semantic inference service. Multiple data resources are bridged to provide cross catalog searches. We expect this research to support spatial search in an intelligent manner.

Education is one of the key sectors that has benefited from the continuous developments and innovations in information and communication technology (ICT). Web-based facilities now provide a medium for learning and a vehicle for information dissemination and knowledge creation (Khine, 2003). Accordingly, developments in ICTs provide opportunities for educators to expand and refine frameworks for...

We conducted a qualitative study of the attitudes of teens and parents toward the use of a patient portal. We conducted two teen and two parent focus groups, one teen electronic bulletin board, and one parent electronic bulletin board. Videotapes and transcripts from the groups were independently analyzed by two reviewers for significant themes, which were then validated by two other members of...

This paper presents our experiences developing grid portals for radar and sensor based applications. Underlying these gateways there are existing grid technologies such as Globus Toolkit 4.0.1 and Gridsphere. The grid portals provide secure and transparent access to applications dealing with data acquired from network of radar and sensors deployed in Puerto Rico, while implementing useful funct...

The past decades have witnessed the rapid growth of heterogeneous geospatial information systems. An important way to share these valuable assets is a spatial data infrastructure (SDI). Recent developments in Web Services and distributed geospatial information services provide a practical approach, Web Portals, to building a SDI. This article describes research, development, and challenges rela...