Reversal Distance without Hurdles and Fortresses. Bergeron, A., Mixtacki, J., & Stoye, J. In Proc. of Combinatorial Pattern Matching Symposium (CPM 2004), volume 3109, of Lect Notes Comput Sci, pages 388–399, 2004. Springer, Berlin.
abstract   bibtex   
This paper presents an elementary proof of the Hannenhalli-Pevzner theorem on the reversal distance of two signed permutations. It uses a single PQ-tree to encode the various features of a permutation. The parameters called hurdles and fortress are replaced by a single one, whose value is computed by a simple and efficient algorithm.
@InProceedings{bergeron04reversal,
  author    = {Anne Bergeron and Julia Mixtacki and Jens Stoye},
  title     = {Reversal Distance without Hurdles and Fortresses},
  booktitle = {Proc. of Combinatorial Pattern Matching Symposium (CPM 2004)},
  year      = {2004},
  volume    = {3109},
  series    = lncs,
  pages     = {388--399},
  publisher = Springer,
  abstract  = {This paper presents an elementary proof of the Hannenhalli-Pevzner theorem on the reversal distance of two signed permutations. It uses a single PQ-tree to encode the various features of a permutation. The parameters called hurdles and fortress are replaced by a single one, whose value is computed by a simple and efficient algorithm.},
  file      = {BergeronEtAl_ReversalDistanceWithoutHurdles_CPM_2004.pdf:2004/BergeronEtAl_ReversalDistanceWithoutHurdles_CPM_2004.pdf:PDF},
  noaddress = {Berlin},
  noeditor  = {Sahinalp, S. C. and Muthukrishnan, S. and Dogrusoz, U.},
}

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