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DM
2010
99views more  DM 2010»
13 years 2 months ago
Perfect octagon quadrangle systems
An octagon quadrangle is the graph consisting of an 8-cycle (x1, x2, ..., x8) with two additional chords: the edges {x1, x4} and {x5, x8}. An octagon quadrangle system of order v ...
Luigia Berardi, Mario Gionfriddo, Rosaria Rota
CIE
2010
Springer
13 years 9 months ago
The Limits of Tractability in Resolution-Based Propositional Proof Systems
We study classes of propositional contradictions based on the Least Number Principle (LNP) in the refutation system of Resolution and its generalisations with bounded conjunction, ...
Stefan S. Dantchev, Barnaby Martin
LOPSTR
1994
Springer
13 years 11 months ago
More on Unfold/Fold Transformations of Normal Programs: Preservation of Fitting's Semantics
The unfold/fold transformation system defined by Tamaki and Sato was meant for definite programs. It transforms a program into an equivalent one in the sense of both the least tter...
Annalisa Bossi, Sandro Etalle
BIRTHDAY
2010
Springer
13 years 8 months ago
Choiceless Computation and Symmetry
Many natural problems in computer science concern structures like graphs where elements are not inherently ordered. In contrast, Turing machines and other common models of computa...
Benjamin Rossman
EUSFLAT
2009
181views Fuzzy Logic» more  EUSFLAT 2009»
13 years 5 months ago
Fuzzy Concept Lattice is Made by Proto-Fuzzy Concepts
Abstract-- An L-fuzzy context is a triple consisting of a set of objects, a set of attributes and an L-fuzzy binary relation between them. An l-cut is a classical context over the ...
Ondrej Kridlo, Stanislav Krajci