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Approximating shortest superstrings

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2 Author(s)
Shang-Hua Teng ; Dept. of Math., MIT, Cambridge, MA, USA ; Yao, F.

The Shortest Superstring Problem is to find a shortest possible string that contains every string in a given set as substrings. This problem has applications to data compression and DNA sequencing. As the problem is NP-hard and MAX SNP-hard, approximation algorithms are of interest. We present a new algorithm which always finds a superstring that is at most 2.89 times as long as the shortest superstring. Our result improves the 3-approximation result of Blum, Jiang, Li, Tromp, and Yannakakis (1991)

Published in:

Foundations of Computer Science, 1993. Proceedings., 34th Annual Symposium on

Date of Conference:

3-5 Nov 1993