Information systems often require combining datasets available in different formats, and geographical information systems are no exception. While semantic technologies have been u...
Abstract. Two kinds of framework for stating grammars of natural languages emerged during the 20th century. Here we call them generativeenumerative syntax (GES) and model-theoretic...
Default reasoning has become an important topic in software engineering. In particular, defaults can be used to revise speci cations, to enhance reusability of existing systems, an...
We show that a wide class of bidirectional data-flow analyses and program optimizations based on them admit declarative descriptions in the form of type systems. The salient feat...
In this paper, partial knowledge about the possible transitions which can take place in a dynamical environment is represented by a set of pairs of propositional formulae, with th...