COCOA
2010
Springer
13 years 9 months ago
2010
Springer
The classical and well-studied group testing problem is to find d defectives in a set of n elements by group tests, which tell us for any chosen subset whether it contains defectiv...
CORR
2007
Springer
13 years 11 months ago
2007
Springer
We use support theory, in particular the fretsaw extensions of Shklarski and Toledo [ST06a], to design preconditioners for the stiffness matrices of 2-dimensional truss structure...
ECCC
2006
13 years 11 months ago
2006
We give new constructions of randomness extractors and lossless condensers that are optimal to within constant factors in both the seed length and the output length. For extractor...
SODA
2008
ACM
14 years 19 days ago
2008
ACM
We consider a problem known as the restricted assignment version of the max-min allocation problem with indivisible goods. There are n items of various nonnegative values and m pl...
FOCS
2008
IEEE
14 years 5 months ago
2008
IEEE
A merger is a probabilistic procedure which extracts the randomness out of any (arbitrarily correlated) set of random variables, as long as one of them is uniform. Our main result...
FOCS
2008
IEEE
14 years 5 months ago
2008
IEEE
What is the least surface area of a shape that tiles Rd under translations by Zd ? Any such shape must have volume 1 and hence surface area at least that of the volume-1 ball, nam...