Translations to (first-order) datalog have been used in a number of inferencing techniques for description logics (DLs), yet the relationship between the semantic expressivities o...
This paper describes a framework to support the implementation of web-based systems to manipulate data stored in relational databases. Since the conceptual model of a relational da...
Linear constraint databases and query languages are appropriate for spatial database applications. Not only the data model is natural to represent a large portion of spatial data s...
We give an overview of a proof-producing compiler which translates recursion equations, defined in higher order logic, to assembly language. The compiler is implemented and valida...
We prove that TAUT has a p-optimal proof system if and only if a logic related to least fixed-point logic captures polynomial time on all finite structures. Furthermore, we show ...