We study the access control integration problem for web services. Organizations frequently use many services, each with its own access control policies, that must interoperate whi...
As the competition of Web search market increases, there is a high demand for personalized Web search to conduct retrieval incorporating Web users' information needs. This pa...
The Globus Toolkit (GT) has been developed since the late 1990s to support the development of service-oriented distributed computing applications and infrastructures. Core GT compo...
University Fernando Pessoa, a small university with around 4500 students enrolled, has developed a Web application to support administrative work for its teaching staff. It is a w...
In this paper we are interested in argument based reasoning for access control, for example in the context of agents negotiating access to resources or web services in virtual orga...
Guido Boella, Joris Hulstijn, Leendert W. N. van d...