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» On the Complexity of Theory Curbing
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COR
2008
122views more  COR 2008»
15 years 6 months ago
First steps to the runtime complexity analysis of ant colony optimization
: The paper presents results on the runtime complexity of two ant colony optimization (ACO) algorithms: Ant System, the oldest ACO variant, and GBAS, the first ACO variant for whic...
Walter J. Gutjahr
AML
2011
204views Mathematics» more  AML 2011»
15 years 1 months ago
A note on propositional proof complexity of some Ramsey-type statements
Any valid Ramsey statement n −→ (k)2 2 can be encoded into a DNF formula RAM(n, k) of size O(nk) and with terms of size k 2 . Let rk be the minimal n for which the statement h...
Jan Krajícek
PODS
2010
ACM
181views Database» more  PODS 2010»
15 years 11 months ago
Schema design for XML repositories: complexity and tractability
Abiteboul et al. initiated the systematic study of distributed XML documents consisting of several logical parts, possibly located on different machines. The physical distributio...
Wim Martens, Matthias Niewerth, Thomas Schwentick
COLT
1993
Springer
15 years 10 months ago
Parameterized Learning Complexity
We describe three applications in computational learning theory of techniques and ideas recently introduced in the study of parameterized computational complexity. (1) Using param...
Rodney G. Downey, Patricia A. Evans, Michael R. Fe...
JSAC
2008
106views more  JSAC 2008»
15 years 6 months ago
A Low-Complexity Detector for Large MIMO Systems and Multicarrier CDMA Systems
We consider large MIMO systems, where by `large' we mean number of transmit and receive antennas of the order of tens to hundreds. Such large MIMO systems will be of immense i...
K. Vishnu Vardhan, Saif K. Mohammed, Ananthanaraya...