4 papers
Random Wheeler Automata
Ruben Becker, Davide Cenzato, Sung-Hwan Kim +3
Wheeler automata were introduced in 2017 as a tool to generalize existing indexing and compression techniques based on the Burrows-Wheeler transform. Intuitively, an automaton is s…
Optimal Wheeler Language Recognition
Ruben Becker, Davide Cenzato, Sung-Hwan Kim +3
A Wheeler automaton is a finite state automaton whose states admit a total Wheeler order, reflecting the co-lexicographic order of the strings labeling source-to-node paths. A Whee…
Sorting Finite Automata via Partition Refinement
Ruben Becker, Manuel Cáceres, Davide Cenzato +4
Wheeler nondeterministic finite automata (WNFAs) were introduced as a generalization of prefix sorting from strings to labeled graphs. WNFAs admit optimal solutions to classic hard…
Faster Prefix-Sorting Algorithms for Deterministic Finite Automata
Sung-Hwan Kim, Francisco Olivares, Nicola Prezza
Sorting is a fundamental algorithmic pre-processing technique which often allows to represent data more compactly and, at the same time, speeds up search queries on it. In this pap…