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arXiv · 2002.10303

Wheeler Languages

Jarno Alanko·Giovanna D'Agostino·Alberto Policriti·Nicola Prezza
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Abstract

The recently introduced class of Wheeler graphs, inspired by the Burrows-Wheeler Transform (BWT) of a given string, admits an efficient index data structure for searching for subpaths with a given path label, and lifts the applicability of the Burrows-Wheeler transform from strings to languages. In this paper we study the regular languages accepted by automata having a Wheeler graph as transition function, and prove results on determination, Myhill_Nerode characterization, decidability, and closure properties for this class of languages.

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Jarno Alanko, Giovanna D'Agostino, Alberto Policriti, Nicola Prezza. 2020-02-24. Wheeler Languages. https://arxiv.org/abs/2002.10303

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