منابع مشابه
State Complexity of Suffix Distance
The neighbourhood of a regular language with respect to the prefix, suffix and subword distance is always regular and a tight bound for the state complexity of prefix distance neighbourhoods is known. We give upper bounds for the state complexity of the neighbourhood of radius k of an n state DFA (deterministic finite automaton) language with respect to the suffix distance and the subword dista...
متن کاملState Complexity of Prefix Distance
The prefix distance between strings x and y is the number of symbol occurrences in the strings that do not belong to the longest common prefix of x and y. The suffix and the substring distances are defined analogously in terms of the longest common suffix and longest common substring, respectively, of two strings. We show that the set of strings within prefix distance k from an n state DFA (det...
متن کاملState Complexity of Basic Operations on Suffix-Free Regular Languages
We investigate the state complexity of basic operations for suffix-free regular languages. The state complexity of an operation for regular languages is the number of states that are necessary and sufficient in the worst-case for the minimal deterministic finite-state automaton that accepts the language obtained from the operation.We establish the precise state complexity of catenation, Kleene ...
متن کاملNondeterministic State Complexity for Suffix-Free Regular Languages
We investigate the nondeterministic state complexity of basic operations for suffix-free regular languages. The nondeterministic state complexity of an operation is the number of states that are necessary and sufficient in the worst-case for a minimal nondeterministic finite-state automaton that accepts the language obtained from the operation. We consider basic operations (catenation, union, i...
متن کاملComplexity of Suffix-Free Regular Languages
We study various complexity properties of suffix-free regular languages. The quotient complexity of a regular language L is the number of left quotients of L; this is the same as the state complexity of L, which is the number of states in a minimal deterministic finite automaton (DFA) accepting L. A regular language L′ is a dialect of a regular language L if it differs only slightly from L (for...
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ژورنال
عنوان ژورنال: International Journal of Foundations of Computer Science
سال: 2019
ISSN: 0129-0541,1793-6373
DOI: 10.1142/s0129054119400355