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An Efficient Implementation of a Quasi-polynomial Algorithm for Generating Hypergraph Transversals

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons44374

Elbassioni,  Khaled M.
Algorithms and Complexity, MPI for Informatics, Max Planck Society;

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Zitation

Boros, E., Elbassioni, K. M., Khachiyan, L., & Gurvich, V. (2003). An Efficient Implementation of a Quasi-polynomial Algorithm for Generating Hypergraph Transversals. In Algorithms - ESA 2003 (pp. 556-567). Berlin: Springer.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0019-EC57-2
Zusammenfassung
Given a finite set V, and a hypergraph , the hypergraph transversal problem calls for enumerating all minimal hitting sets (transversals) for . This problem plays an important role in practical applications as many other problems were shown to be polynomially equivalent to it. Fredman and Khachiyan (1996) gave an incremental quasi-polynomial time algorithm for solving the hypergraph transversal problem [9]. In this paper, we present an efficient implementation of this algorithm. While we show that our implementation achieves the same bound on the running time as in [9], practical experience with this implementation shows that it can be substantially faster. We also show that a slight modification of the algorithm in [9] can be used to give a stronger bound on the running time.