Sciweavers

48 search results - page 3 / 10
» Subquadratic Algorithms for 3SUM
Sort
View
JDA
2008
72views more  JDA 2008»
13 years 7 months ago
Semi-local longest common subsequences in subquadratic time
For two strings a, b of lengths m, n respectively, the longest common subsequence (LCS) problem consists in comparing a and b by computing the length of their LCS. In this paper, ...
Alexander Tiskin
CPM
2004
Springer
107views Combinatorics» more  CPM 2004»
13 years 11 months ago
Sorting by Reversals in Subquadratic Time
The problem of sorting a signed permutation by reversals is inspired by genome rearrangements in computational molecular biology. Given two genomes represented as two signed permut...
Eric Tannier, Marie-France Sagot
AAECC
2010
Springer
136views Algorithms» more  AAECC 2010»
13 years 8 months ago
New recombination algorithms for bivariate polynomial factorization based on Hensel lifting
Abstract. We present new faster deterministic and probabilistic recombination algorithms to compute the irreducible decomposition of a bivariate polynomial via the classical Hensel...
Grégoire Lecerf
COMPGEOM
2006
ACM
14 years 1 months ago
How to get close to the median shape
In this paper, we study the problem of L1-fitting a shape to a set of point, where the target is to minimize the sum of distances of the points to the shape, or alternatively the...
Sariel Har-Peled
COMPGEOM
2000
ACM
14 years 6 days ago
When crossings count - approximating the minimum spanning tree
We present an (1+ε)-approximation algorithm for computing the minimum-spanning tree of points in a planar arrangement of lines, where the metric is the number of crossings betwee...
Sariel Har-Peled, Piotr Indyk