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» Some Properties and Some Problems on Set Functors
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GECCO
2003
Springer
15 years 9 months ago
A Kernighan-Lin Local Improvement Heuristic That Solves Some Hard Problems in Genetic Algorithms
We present a Kernighan-Lin style local improvement heuristic for genetic algorithms. We analyze the run-time cost of the heuristic. We demonstrate through experiments that the heur...
William A. Greene
ICALP
2010
Springer
15 years 8 months ago
Automata for Coalgebras: An Approach Using Predicate Liftings
Universal Coalgebra provides the notion of a coalgebra as the natural mathematical generalization of state-based evolving systems such as (infinite) words, trees, and transition s...
Gaëlle Fontaine, Raul Andres Leal, Yde Venema
MLQ
1998
103views more  MLQ 1998»
15 years 3 months ago
Versions of Normality and Some Weak Forms of the Axiom of Choice
Abstract. We investigate the set theoretical strength of some properties of normality, including Urysohn’s Lemma, Tietze-Urysohn Extension Theorem, normality of disjoint unions o...
Paul E. Howard, Kyriakos Keremedis, Herman Rubin, ...
EUSFLAT
2007
105views Fuzzy Logic» more  EUSFLAT 2007»
15 years 5 months ago
Fuzzy Class Theory: Some Advanced Topics
The goal of this paper is to push forward the development of the apparatus of the Fuzzy Class theory. We concentrate on three areas: strengthening the universal quantifier, forma...
Petr Cintula, Rostislav Horcík
ESA
2009
Springer
115views Algorithms» more  ESA 2009»
15 years 10 months ago
Output-Sensitive Algorithms for Enumerating Minimal Transversals for Some Geometric Hypergraphs
We give a general framework for the problem of finding all minimal hitting sets of a family of objects in Rd by another. We apply this framework to the following problems: (i) hit...
Khaled M. Elbassioni, Kazuhisa Makino, Imran Rauf