We address the goal of making Delegation Logic (DL) into a practically implementable and tractable trustmanagement system. DL [22] is a logic-based knowledge representation (i.e., language) for authorization in largescale, open, distributed systems. As introduced in [22], DL inferencing is computationally intractable and highly impractical to implement. We introduce a new version of Delegation ...

Among theories of the physical world, quantum mechanics remains a topic lively discussions on its so-called interpretation. For some it an open question to understand how deterministic equations this theory, as established long ago, may combine with fundamental uncertainty. We consider process spontaneous emission by atom interacting infinite number degrees freedom electromagnetic field. There ...

Abstract We propose a revised definition of “argument scheme” that focuses on describing argumentative performances and normative assessments occur within an context, the social context in which scheme arises. Our premise-and-conclusion structure identifies typical instantiation argument our critical framework describes set available to participants what we call practically assessments. disting...