Our work is motivated by the problem of ranking hyperlinked documents for a given query. Given an arbitrary directed graph with edge and node labels, we present a new flow-based ...
XACML has become the de facto standard for specifying access control policies for various applications, especially web services. With the explosive growth of web applications depl...
Play-on-demand is usually regarded as a feasible access mode for web content (including streaming video, web pages and so on), web services and some Software-As-A-Service (SaaS) a...
Computational science portals are emerging as useful and necessary interfaces for performing operations on the Grid. The Grid Portal Development Kit (GPDK) facilitates the develop...
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...
Roberto De Virgilio, Giorgio Orsi, Letizia Tanca, ...