Privacy and authenticity are two essential security attributes of secure Vehicle-to-Vehicle communications. Pseudonymous Public Key Infrastructure (PPKI), an extension of standard PKI, has been proposed to achieve these security attributes. In Pseudonymous PKI, a user needs certificates or pseudonyms periodically from the Certificate Authority (CA) to authenticate messages anonymously. But the ...

We present an approach for the semantic integration of geoscience data, and a system implementing this approach. Specifically, we demonstrate the use of data ontologies and application of markup languages for semantic integration of data and services. We introduce a domain level object ontology, called Earth and Planetary ONTology (EPONT) to explore, extract, and integrate information from hete...

The paper presents a realistic scenario for the introduction of a public ATM network to be implemented on the Hungarian SDH infrastructure. The Hungarian SDH network was deployed in 1996 with STM-4 rings on the lower level, and an STM-16 mesh subnetwork on the higher level, while the ATM network is intended to be introduced with two hierarchical levels: the access level and the backbone level c...

The complexity of embedded applications is growing rapidly. Mainstream software technology is facing serious challenges for leaving out non-functional aspects of embedded systems. To achieve this goal, we have defined a component-based modeling and assembly infrastructure, Pcanel, that supports hierarchical integration of concurrent, runtime models. A key principal in Pcanel is its netlist, nam...

With the exponential growth of the Internet, information can be shared among government agencies more easily than before. However, this also poses some design issues and challenges. This article reports on our experience in building an infrastructure for information sharing and collaboration in the law enforcement domain. Based on our user requirement studies with the Tucson Police Department, ...

Service-oriented computing (SOC) offers a promising solution for dealing with coordination complexity in distributed software systems. Naturally, the infrastructure and technologies for composing services form the backbone of SOC. We argue that SOC has immense potential in enabling collaborations between distributed autonomous services in open dynamic environments, in addition to the restricted...

In this work, we describe the set of tools comprising the Data Access Infrastructure within Advancing Clinico-genomic Trials on Cancer (ACGT), a R&D Project funded in part by the European. This infrastructure aims at improving Post-genomic clinical trials by providing seamless access to integrated clinical, genetic, and image databases. A data access layer, based on OGSA-DAI, has been developed...

It is commonly accepted that online social networking and decision support systems are two intertwined research fields. However, as the extent of such interconnection is still quite scarce, we underwent a large study of these research fields, over a time-span of eight years (from 2003 until 2010). Previous research on this matter had already determined that many concepts are encompassed by both...