21 search results - page 1 / 5 » Complexity of Approximating Closest Substring Problems |
FCT
2003
Springer
13 years 10 months ago
2003
Springer
The closest substring problem, where a short string is sought that minimizes the number of mismatches between it and each of a given set of strings, is a minimization problem with ...
FOCS
2005
IEEE
13 years 10 months ago
2005
IEEE
In the CLOSEST SUBSTRING problem k strings s1, ..., sk are given, and the task is to find a string s of length L such that each string si has a consecutive substring of length L ...
CPM
2004
Springer
13 years 10 months ago
2004
Springer
Given a set S = {s1, s2, . . . , sn} of strings each of length m, and an integer L, we study the following two problems. k-Closest Substring problem: find k center strings c1, c2,...
FOCS
2006
IEEE
13 years 11 months ago
2006
IEEE
We investigate the optimality of (1+ )-approximation algorithms obtained via the dimensionality reduction method. We show that: • Any data structure for the (1 + )-approximate n...
FOCS
2005
IEEE
13 years 10 months ago
2005
IEEE
d Abstract] Mikhail Alekhnovich ∗ Subhash A. Khot † Guy Kindler ‡ Nisheeth K. Vishnoi § We show that, unless NP⊆DTIME(2poly log(n) ), the closest vector problem with pre-...