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INFOCOM
2012
IEEE
12 years 1 months ago
Maximizing system throughput by cooperative sensing in Cognitive Radio Networks
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...
Shuang Li, Zizhan Zheng, Eylem Ekici, Ness B. Shro...
ISAAC
2010
Springer
240views Algorithms» more  ISAAC 2010»
13 years 9 months ago
Interpretation of Stream Programs: Characterizing Type 2 Polynomial Time Complexity
We study polynomial time complexity of type 2 functionals. For that purpose, we introduce a first order functional stream language. We give criteria, named well-founded, on such pr...
Hugo Férée, Emmanuel Hainry, Mathieu...
IJCAI
1993
14 years 23 days ago
A Computational Model of Tractable Reasoning - Taking Inspiration from Cognition
Polynomial time complexity is the usual ‘threshold’ for distinguishing the tractable from the intractable and it may seem reasonable to adopt this notion of tractability in th...
Lokendra Shastri
ISVLSI
2002
IEEE
129views VLSI» more  ISVLSI 2002»
14 years 4 months ago
Accelerating Retiming Under the Coupled-Edge Timing Model
Retiming has been shown to be a powerful technique for improving the performance of synchronous circuits. However, even though retiming algorithms of polynomial time complexity ha...
Ingmar Neumann, Kolja Sulimma, Wolfgang Kunz
WG
2005
Springer
14 years 4 months ago
Recognizing HHDS-Free Graphs
In this paper, we consider the recognition problem on the HHDS-free graphs, a class of homogeneously orderable graphs, and we show that it has polynomial time complexity. In partic...
Stavros D. Nikolopoulos, Leonidas Palios
MFCS
2005
Springer
14 years 5 months ago
Coloring Sparse Random k-Colorable Graphs in Polynomial Expected Time
Abstract. Feige and Kilian [5] showed that finding reasonable approximative solutions to the coloring problem on graphs is hard. This motivates the quest for algorithms that eithe...
Julia Böttcher