In this paper, we analyze a geospatial application for visualizing U.S. election results in order to show the problems that need to be solved in the mapping between different XML representations and their conceptual models. We propose a framework that provides a number of core classes that allow applications to treat XML documents as graphs and to evaluate XPath expressions against such documen...

One of the major challenges faced by the IPv6 community in recent years has been to define the scenarios in which transitioning mechanisms should be used and which ones should be selected given a specific scenario. This paper aims to supplement this by presenting the results of a comparative evaluation carried out on three major IPv6 interoperation mechanisms; NAT-PT, TRT and DSTM. This work at...

The European e-infrastructure is the ICT support for research although the infrastructure will be extended for commercial/business use. It supports the research process across funding agencies to research institutions to innovation. It supports experimental facilities, modelling and simulation, communication between researchers, and workflow of research processes and research management. We pro...

We describe a platform, IOP, for the interoperation of formal reasoning tools, and an adaptation of Maude, IMaude, that utilizes this platform. Three applications of IMaude and IOP to real world problem domains are described.

Two major challenges to enabling secure interoperation among web-information sources are resolving semantic heterogeneity across websites and maintaining the privacy of the data and metadata of organizations owning the websites. In this paper, we propose SACE, a novel, implemented middleware toolkit that enables privacy-preserving secure semantic access control and allows queries to be answered...

In my thesis I will address the problem of interoperation between information spaces on the web. We explain how this problem is different to traditional database integration scenarios. In particular, we focus on one issue of the information integration problem peculiar to the web environment, namely linking information across sources. We use RDF as the underlying data model and representation f...

Over the past several years, network-accessible repositories have been developed by various academic, government, and industrial organizations to provide access to software and related resources. Allowing distributed maintenance of these repositories while enabling users to access resources from multiple repositories via a single interface has brought about the need for interoperation. Concerns...

Government represents a unique, and also uniquely complex, environment for interoperation of information systems as well as for integration of workflows and processes across governmental levels and branches. While private-sector organizations by and large have the capacity to implement “enterprise architectures” in a relatively straightforward fashion, for notable reasons governments do not enj...