453 search results - page 6 / 91 » Tight bounds for the partial-sums problem |
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...
APPROX
2005
Springer
14 years 2 months ago
2005
Springer
We resolve two open problems presented in [8]. First, we consider the problem of reconstructing an unknown string T over a fixed alphabet using queries of the form “does the st...
FOCS
2006
IEEE
14 years 2 months ago
2006
IEEE
We establish the exact threshold for the reconstruction problem for a binary asymmetric channel on the b-ary tree, provided that the asymmetry is sufficiently small. This is the ...
SODA
2012
ACM
11 years 11 months ago
2012
ACM
Kernelization algorithms are polynomial-time reductions from a problem to itself that guarantee their output to have a size not exceeding some bound. For example, d-Set Matching f...
MMB
2010
Springer
14 years 1 months ago
2010
Springer
Abstract. Computing tight performance bounds in feed-forward networks under general assumptions about arrival and server models has turned out to be a challenging problem. Recently...