Title
Computing Longest Common Substring/Subsequence Of Non-Linear Texts
Abstract
A non-linear text is a directed graph where each vertex is labeled with a string. In this paper, we introduce the longest common substring/subsequence problems on non-linear texts. Firstly, we present an algorithm to compute the longest common substring of non-linear texts G(1) and G(2) in O(vertical bar E-1 parallel to E-2 vertical bar) time and O(vertical bar V-1 parallel to V-2 vertical bar) space, when at least one of G(1) and G(2) is acyclic. Here, V-i and E-i are the sets of vertices and arcs of input non-linear text G(i), respectively, for 1 <= i <= 2. Secondly, we present algorithms to compute the longest common subsequence of G(1) and G(2) in O(vertical bar E-1 parallel to E-2 vertical bar) time and O(vertical bar V-1 parallel to V-2 vertical bar) space, when both G(1) and G(2) are acyclic, and in O(vertical bar E-1 parallel to E-2 vertical bar+vertical bar V-1 parallel to V-2 vertical bar log vertical bar Sigma vertical bar) time and O(vertical bar V-1 parallel to V-2 vertical bar) space if G(1) and/or G(2) are cyclic, where, Sigma denotes the alphabet.
Year
Venue
Field
2011
PROCEEDINGS OF THE PRAGUE STRINGOLOGY CONFERENCE 2011
Discrete mathematics,Substring index,Combinatorics,Substring,Longest common subsequence problem,Longest increasing subsequence,Longest palindromic substring,Computer science,Longest repeated substring problem,Subsequence,Longest common substring problem
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
3
4
Name
Order
Citations
PageRank
Kouji Shimohira130.73
Shunsuke Inenaga259579.02
Hideo Bannai362079.87
Masayuki Takeda490279.24