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ECAL
1995
Springer
15 years 10 months ago
Contextual Genetic Algorithms: Evolving Developmental Rules
A genetic algorithm scheme with a stochastic genotype/phenotype relation is proposed. The mechanisms responsible for this intermediate level of uncertainty, are inspired by the bio...
Luis Mateus Rocha
FPCA
1995
15 years 10 months ago
Bananas in Space: Extending Fold and Unfold to Exponential Types
Fold and unfold are general purpose functionals for processing and constructing lists. By using the categorical approach of modelling recursive datatypes as fixed points of funct...
Erik Meijer, Graham Hutton
FSTTCS
1991
Springer
15 years 10 months ago
Randomizing Reductions of Search Problems
This paper closes a gap in the foundations of the theory of average case complexity. First, we clarify the notion of a feasible solution for a search problem and prove its robustne...
Andreas Blass, Yuri Gurevich
MFDBS
1991
125views Database» more  MFDBS 1991»
15 years 10 months ago
A Relational Algebra for Complex Objects Based on Partial Information
We study an approach to relational databases which treats relations not as subsets of a Cartesian product but as subsets of some domain { a partially ordered space of descriptions...
Leonid Libkin
DLOG
2008
15 years 9 months ago
A Survey of Revision Approaches in Description Logics
Abstract. Revision of a Description Logic-based ontology to incorporate newly received information consistently is an important problem for the lifecycle of ontologies. Many approa...
Guilin Qi, Fangkai Yang