Abstract. In electronic commerce, traded digital objects are likely associated with several numerical values as well as their prices. These values may change unpredictably over tim...
Abstract. This paper reviews and relates two default reasoning mechanisms, lexicographic (lex) and maximum entropy (me) entailment. Meentailment requires that defaults be assigned ...
Abstract. This paper describes a complete implementation of Ritt-Wu's characteristic sets method in the Maple system. The implemented algorithms include those with variants fo...
Abstract. In this paper we present the ITP/OCL tool, a rewritingbased tool that supports automatic validation of UML class diagrams with respect to OCL constraints. Its implementat...
Abstract. We describe the invariants of plane quartic curves -- nonhyperelliptic genus 3 curves in their canonical model -- as determined by Dixmier and Ohno, with application to t...