Abstract : We describe a new unifying framework to express comparison of arc-annotated sequences, which we call alignment of arc-annotated sequences. We first prove that this framework encompasses main existing models, which allows us to deduce complexity results for several cases from the literature. We also show that this framework gives rise to new relevant problems that have not been studied yet. We provide a thorough analysis of these novel cases by proposing two polynomial time algorithms and an NP-completeness proof. This leads to an almost exhaustive study of alignment of arc-annotated sequences.
https://hal.inria.fr/inria-00178671
Contributor : Helene Touzet
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Submitted on : Monday, November 21, 2011 - 3:27:50 PM
Last modification on : Monday, September 30, 2019 - 3:36:03 PM
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Guillaume Blin, Helene Touzet. How to compare arc-annotated sequences: The alignment hierarchy. 13th String Processing and Information Retrieval, Oct 2006, Glasgow, United Kingdom. pp.291-303. ⟨inria-00178671⟩
