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CORR
2010
Springer
143views Education» more  CORR 2010»
14 years 16 days ago
An Algorithm to List All the Fixed-Point Free Involutions on a Finite Set
A fixed-point free involution on a finite set S is defined as a bijection I : S S such as e S, I(I(e)) = e and e S, I(e) = e. In this article, the fixed-point free involutions ...
Cyril Prissette
COMGEO
2008
ACM
14 years 16 days ago
On the density of iterated line segment intersections
Given S1, a finite set of points in the plane, we define a sequence of point sets Si as follows: With Si already determined, let Li be the set of all the line segments connecting ...
Ansgar Grüne, Sanaz Kamali
AAAI
2004
14 years 1 months ago
Logic Programs with Abstract Constraint Atoms
We propose and study extensions of logic programming with constraints represented as generalized atoms of the form C(X), where X is a finite set of atoms and C is act constraint (...
Victor W. Marek, Miroslaw Truszczynski
CCCG
2010
14 years 1 months ago
Coloring geometric hypergraph defined by an arrangement of half-planes
We prove that any finite set of half-planes can be colored by two colors so that every point of the plane, which belongs to at least three half-planes in the set, is covered by ha...
Radoslav Fulek
PODS
2010
ACM
223views Database» more  PODS 2010»
14 years 2 months ago
Characterizing schema mappings via data examples
Schema mappings are high-level specifications that describe the relationship between two database schemas; they are considered to be the essential building blocks in data exchange...
Bogdan Alexe, Phokion G. Kolaitis, Wang Chiew Tan
CADE
2008
Springer
14 years 2 months ago
Deciding Effectively Propositional Logic Using DPLL and Substitution Sets
We introduce a DPLL calculus that is a decision procedure for the Bernays-Sch
Leonardo Mendonça de Moura, Nikolaj Bj&osla...
LATIN
1998
Springer
14 years 4 months ago
Shape Reconstruction with Delaunay Complex
The reconstruction of a shape or surface from a finite set of points is a practically significant and theoretically challenging problem. This paper presents a unified view of algor...
Herbert Edelsbrunner
EH
2000
IEEE
81views Hardware» more  EH 2000»
14 years 4 months ago
Toward Self-Repairing and Self-Replicating Hardware: The Embryonics Approach
The growth and operation of all living beings are directed by the interpretation, in each of their cells, of a chemical program, the DNA string or genome. This process is the sour...
Daniel Mange, Moshe Sipper, André Stauffer,...