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JCT
2007
117views more  JCT 2007»
13 years 9 months ago
Large independent sets in regular graphs of large girth
Let G be a d-regular graph with girth g, and let α be the independence number of G. We show that α(G) ≥ 1 2 1 − (d − 1)−2/(d−2) − (g) n where (g) → 0 as g → ∞,...
Joseph Lauer, Nicholas C. Wormald
FOCS
1990
IEEE
14 years 1 months ago
Simple Constructions of Almost k-Wise Independent Random Variables
We present three alternative simple constructions of small probability spaces on n bits for which any k bits are almost independent. The number of bits used to specify a point in ...
Noga Alon, Oded Goldreich, Johan Håstad, Ren...
JCT
2008
103views more  JCT 2008»
13 years 9 months ago
A bijective proof of Jackson's formula for the number of factorizations of a cycle
Factorizations of the cyclic permutation (1 2 . . . N) into two permutations with respectively n and m cycles, or, equivalently, unicellular bicolored maps with N edges and n whit...
Gilles Schaeffer, Ekaterina A. Vassilieva
IEEEPACT
2007
IEEE
14 years 4 months ago
Call-chain Software Instruction Prefetching in J2EE Server Applications
We present a detailed characterization of instruction cache performance for IBM’s J2EE-enabled web server, WebSphere Application Server (WAS). When running two J2EE benchmarks o...
Priya Nagpurkar, Harold W. Cain, Mauricio J. Serra...
SPAA
2009
ACM
14 years 7 months ago
A randomized, o(log w)-depth 2 smoothing network
A K-smoothing network is a distributed, low-contention data structure where tokens arrive arbitrarily on w input wires and reach w output wires via their completely asynchronous p...
Marios Mavronicolas, Thomas Sauerwald