English

Longest Common Subsequence in at Least $k$ Length Order-Isomorphic Substrings

Data Structures and Algorithms 2017-02-07 v3

Abstract

We consider the longest common subsequence (LCS) problem with the restriction that the common subsequence is required to consist of at least kk length substrings. First, we show an O(mn)O(mn) time algorithm for the problem which gives a better worst-case running time than existing algorithms, where mm and nn are lengths of the input strings. Furthermore, we mainly consider the LCS in at least kk length order-isomorphic substrings problem. We show that the problem can also be solved in O(mn)O(mn) worst-case time by an easy-to-implement algorithm.

Keywords

Cite

@article{arxiv.1609.03668,
  title  = {Longest Common Subsequence in at Least $k$ Length Order-Isomorphic Substrings},
  author = {Yohei Ueki and Diptarama and Masatoshi Kurihara and Yoshiaki Matsuoka and Kazuyuki Narisawa and Ryo Yoshinaka and Hideo Bannai and Shunsuke Inenaga and Ayumi Shinohara},
  journal= {arXiv preprint arXiv:1609.03668},
  year   = {2017}
}

Comments

14 pages, 7 figures, contains erratum to Springer's version (SOFSEM 2017)

R2 v1 2026-06-22T15:47:53.264Z