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ASP
2005
Springer
15 years 11 months ago
An Experimental Study of Search Strategies and Heuristics in Answer Set Programming
Answer Set Programming (ASP) and propositional satisfiability (SAT) are closely related. In some recent work we have shown that, on a wide set of logic programs called “tight”...
Enrico Giunchiglia, Marco Maratea
ICTAC
2005
Springer
15 years 11 months ago
Covarieties of Coalgebras: Comonads and Coequations
Coalgebras provide effective models of data structures and state-transition systems. A virtual covariety is a class of coalgebras closed under coproducts, images of coalgebraic mo...
Ranald Clouston, Robert Goldblatt
PKC
2005
Springer
94views Cryptology» more  PKC 2005»
15 years 11 months ago
The Security of the FDH Variant of Chaum's Undeniable Signature Scheme
In this paper, we first introduce a new kind of adversarial goal called forge-and-impersonate in undeniable signature schemes. Note that forgeability does not necessarily imply im...
Wakaha Ogata, Kaoru Kurosawa, Swee-Huay Heng
PPDP
2005
Springer
15 years 11 months ago
A new calculus of contexts
We study contexts (terms with holes) by proposing a ‘λcalculus with holes’. It is very expressive and can encode programming constructs apparently unrelated to contexts, incl...
Murdoch Gabbay
TLCA
2005
Springer
15 years 11 months ago
Naming Proofs in Classical Propositional Logic
Abstract. We present a theory of proof denotations in classical propologic. The abstract definition is in terms of a semiring of weights, and two concrete instances are explored. ...
François Lamarche, Lutz Straßburger