Abstract. Web services are increasingly used for building enterprise information systems according to the Service Oriented Architecture (Soa) paradigm. We propose in this paper a t...
In defining large, complex access control policies, one would like to compose sub-policies, perhaps authored by different organizations, into a single global policy. Existing po...
XPath is the standard declarative language for navigating XML data and returning a set of matching nodes. In the context of XSLT/XQuery analysis, query optimization, and XML type ...
We present a new approach to the grid technology that is based on federated databases and updatable views. Views are used in two ways: (1) as wrappers of local servers that adopt l...
Hanna Kozankiewicz, Krzysztof Stencel, Kazimierz S...
Conversational agent is a system that provides user with proper information and maintains the context of dialogue based on natural language. When experts design the network for con...