English

Improved Approximate String Matching and Regular Expression Matching on Ziv-Lempel Compressed Texts

Data Structures and Algorithms 2007-05-23 v2

Abstract

We study the approximate string matching and regular expression matching problem for the case when the text to be searched is compressed with the Ziv-Lempel adaptive dictionary compression schemes. We present a time-space trade-off that leads to algorithms improving the previously known complexities for both problems. In particular, we significantly improve the space bounds, which in practical applications are likely to be a bottleneck.

Keywords

Cite

@article{arxiv.cs/0609085,
  title  = {Improved Approximate String Matching and Regular Expression Matching on Ziv-Lempel Compressed Texts},
  author = {Philip Bille and Rolf Fagerberg and Inge Li Goertz},
  journal= {arXiv preprint arXiv:cs/0609085},
  year   = {2007}
}