Abstract. We introduce a calculus with mobile names, distributed principals and primitives for secure remote communication, without any reference to explicit cryptography. The calc...
Abstract. This paper presents the semantics of database mappings in the relational database (DB) category, based on the power-view monad T and monadic algebras. The semantics can b...
As a new paradigm for data warehousing demanded by today's decision support community, DW 2.0 recognized the life cycle of data with it, that make metadata evolution mechanis...
Abstract. Perfectly rational decision-makers maximize expected utility, but crucially ignore the resource costs incurred when determining optimal actions. Here we employ an axiomat...
Abstract. We consider the problem of checking equivalence of conjunctive queries with inequalities under bag (multiset) semantics. The problem is known to be decidable in pspace an...