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STOC
2009
ACM
182views Algorithms» more  STOC 2009»
14 years 10 months ago
Approximating edit distance in near-linear time
We show how to compute the edit distance between two strings of length n up to a factor of 2 ~O( log n) in n1+o(1) time. This is the first sub-polynomial approximation algorithm f...
Alexandr Andoni, Krzysztof Onak
DCC
2008
IEEE
14 years 9 months ago
Sublinear Recovery of Sparse Wavelet Signals
There are two main classes of decoding algorithms for "compressed sensing," those which run time time polynomial in the signal length and those which use sublinear resou...
Ray Maleh, Anna C. Gilbert
LATA
2009
Springer
14 years 4 months ago
An Answer to a Conjecture on Overlaps in Partial Words Using Periodicity Algorithms
We propose an algorithm that given as input a full word w of length n, and positive integers p and d, outputs (if any exists) a maximal p-periodic partial word contained in w with ...
Francine Blanchet-Sadri, Robert Mercas, Abraham Ra...
STACS
2009
Springer
14 years 4 months ago
Reverse Engineering Prefix Tables
The Prefix table of a string reports for each position the maximal length of its prefixes starting here. The Prefix table and its dual Suffix table are basic tools used in the d...
Julien Clément, Maxime Crochemore, Giuseppi...
CPAIOR
2009
Springer
14 years 4 months ago
Reformulating Global Grammar Constraints
An attractive mechanism to specify global constraints in rostering and other domains is via formal languages. For instance, the REGULAR and GRAMMAR constraints specify constraints ...
George Katsirelos, Nina Narodytska, Toby Walsh