Abstract. We study the exchange of information in collective information systems mediated by information agents, focusing specifically on the problem of semantic interoperability. ...
Provenance records the history of data. Careless use of provenance may violate the security policies of data. Moreover, the provenance itself may be sensitive information, necessi...
Abstract. Web services have become the predominant paradigm for the development of distributed software systems. Web services provide the means to modularize software in a way that...