D Breslauer - Information Processing Letters, 1992 - Elsevier
A string w covers another string z if every symbol of z is within some occurrence of w in z. A string is called superprimitive if it is covered only by itself, and quasiperiodic if it is covered …
Y Lifshits - Annual Symposium on Combinatorial Pattern Matching, 2007 - Springer
What kind of operations can we perform effectively (without full unpacking) with compressed texts? In this paper we consider three fundamental problems:(1) check the equality of two …
We consider the problem of finding the repetitive structures of a given string x. The period u of the string x grasps the repetitiveness of x, since x is a prefix of a string constructed by …
Let x denote a given nonempty string of length n=| x|. A proper substring u of x is a proper cover of x if and only if every position of x lies within an occurrence of u within x. This paper …
D Moore, WF Smyth - Information Processing Letters, 1994 - Elsevier
Let x denote a given nonempty string of length n=| x|⩾ 1. A string u is a cover of x if and only if every position of x lies within an occurrence of u within x. Thus x is always a cover of itself …
A Apostolico, D Breslauer - Structures in Logic and Computer Science: A …, 2005 - Springer
Quasiperiodic strings were defined by Apostolico and Ehrenfeucht [3], as strings which are entirly covered by occurrences of another (shorter) string. This paper surveys a handful of …
Internationally recognised researchers look at developing trends in combinatorics with applications in the study of words and in symbolic dynamics. They explain the important …
The problem of the set of k-covers is a distance measure for strings. Another well-studied string comparison measure is that of parameterized matching. We consider the problem of …
Z Chen, B Fu, B Zhu - International Conference on Algorithmic …, 2006 - Springer
In this paper we present the first set of approximation and inapproximability results for the Exemplar Breakpoint Distance Problem. Our inapproximability results hold for the simplest …