Sciweavers

328 search results - page 30 / 66
» An O(log n log log n) space algorithm for undirected st-conn...
Sort
View
ALGORITHMICA
2011
13 years 3 months ago
On Bounded Leg Shortest Paths Problems
Let V be a set of points in a d-dimensional lp-metric space. Let s, t ∈ V and let L be any real number. An L-bounded leg path from s to t is an ordered set of points which conne...
Liam Roditty, Michael Segal
ESA
2007
Springer
100views Algorithms» more  ESA 2007»
14 years 2 months ago
Radix Sorting with No Extra Space
It is well known that n integers in the range [1, nc ] can be sorted in O(n) time in the RAM model using radix sorting. More generally, integers in any range [1, U] can be sorted i...
Gianni Franceschini, S. Muthukrishnan, Mihai Patra...
DNA
2000
Springer
148views Bioinformatics» more  DNA 2000»
14 years 8 days ago
A Space-Efficient Randomized DNA Algorithm for k-SAT
We present a randomized DNA algorithm for k-SAT based on the classical algorithm of Paturi et al. [8]. For an n-variable, m-clause instance of k-SAT (m > n), our algorithm finds...
Kevin Chen, Vijay Ramachandran
FOCS
2006
IEEE
14 years 2 months ago
Near-Optimal Hashing Algorithms for Approximate Nearest Neighbor in High Dimensions
We present an algorithm for the c-approximate nearest neighbor problem in a d-dimensional Euclidean space, achieving query time of O(dn1/c2 +o(1) ) and space O(dn + n1+1/c2 +o(1) ...
Alexandr Andoni, Piotr Indyk
STOC
2007
ACM
83views Algorithms» more  STOC 2007»
14 years 9 months ago
Lattices that admit logarithmic worst-case to average-case connection factors
We demonstrate an average-case problem that is as hard as finding (n)-approximate shortest vectors in certain n-dimensional lattices in the worst case, where (n) = O( log n). The...
Chris Peikert, Alon Rosen