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CIE
2006
Springer
13 years 11 months ago
Complexity-Theoretic Hierarchies
We introduce two hierarchies of unknown ordinal height. The hierarchies are induced by natural fragments of a calculus based on finite types and G
Lars Kristiansen
ORL
2007
86views more  ORL 2007»
13 years 7 months ago
Complexity of two dual criteria scheduling problems
In this article we answer the complexity question of two dual criteria scheduling problems which had been open for a long time. Both problems are single machine scheduling problem...
Yumei Huo, Joseph Y.-T. Leung, Hairong Zhao
RSA
2000
104views more  RSA 2000»
13 years 7 months ago
Construction of expanders and superconcentrators using Kolmogorov complexity
We show the existence of various versions of expander graphs using Kolmogorov complexity. This method seems superior to the usual probabilistic construction. It turns out that the...
Uwe Schöning
IPL
2006
99views more  IPL 2006»
13 years 7 months ago
Computational complexity of queries based on itemsets
We investigate determining the exact bounds of the frequencies of conjunctions based on frequent sets. Our scenario is an important special case of some general probabilistic logi...
Nikolaj Tatti
IJON
2007
114views more  IJON 2007»
13 years 7 months ago
A cell assembly model for complex behaviour
Hebbian cell assemblies have been proposed as a model for cortical processing able to bridge between physiology and psychology. Assembly-based theories focused mainly on represent...
Thomas Wennekers