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EJC
2008
13 years 10 months ago
Grad and classes with bounded expansion III. Restricted graph homomorphism dualities
We study restricted homomorphism dualities in the context of classes with bounded expansion. This presents a generalization of restricted dualities obtained earlier for bounded deg...
Jaroslav Nesetril, Patrice Ossona de Mendez
CORR
2006
Springer
94views Education» more  CORR 2006»
13 years 9 months ago
Zig-zag and Replacement Product Graphs and LDPC Codes
It is known that the expansion property of a graph influences the performance of the corresponding code when decoded using iterative algorithms. Certain graph products may be used ...
Christine A. Kelley, Deepak Sridhara, Joachim Rose...
MA
2011
Springer
220views Communications» more  MA 2011»
13 years 4 months ago
Asymptotic expansions for a class of tests for a general covariance structure under a local alternative
Let S be a p × p random matrix having a Wishart distribution Wp(n, n−1Σ). For testing a general covariance structure Σ = Σ(ξ), we consider a class of test statistics Th = n...
Hiroaki Shimizu, Hirofumi Wakaki
DATE
2008
IEEE
122views Hardware» more  DATE 2008»
14 years 4 months ago
Digital bit stream jitter testing using jitter expansion
This paper presents a time-domain jitter expansion technique for high-speed digital bit sequence jitter testing. While jitter expansion has been applied to phase noise measurement...
Hyun Choi, Abhijit Chatterjee
STOC
2004
ACM
157views Algorithms» more  STOC 2004»
14 years 10 months ago
Derandomizing homomorphism testing in general groups
The main result of this paper is a near-optimal derandomization of the affine homomorphism test of Blum, Luby and Rubinfeld (Journal of Computer and System Sciences, 1993). We sho...
Amir Shpilka, Avi Wigderson