Clinical monitoring with fuzzy automata
Fuzzy Sets and Systems
A course in fuzzy systems and control
A course in fuzzy systems and control
SIAM Journal on Computing
Introduction To Automata Theory, Languages, And Computation
Introduction To Automata Theory, Languages, And Computation
Determinism and fuzzy automata
Information Sciences—Informatics and Computer Science: An International Journal
A note on web intelligence, world knowledge and fuzzy logic
Data & Knowledge Engineering - Special jubilee issue: DKE 50
A probabilistic model of computing with words
Journal of Computer and System Sciences
An approach to measure the robustness of fuzzy reasoning: Research Articles
International Journal of Intelligent Systems
Introduction to probabilistic automata (Computer science and applied mathematics)
Introduction to probabilistic automata (Computer science and applied mathematics)
Regular grammars with truth values in lattice-ordered monoid and their languages
Soft Computing - A Fusion of Foundations, Methodologies and Applications
Fuzzy context-free languages: part 1: Generalized fuzzy context-free grammars
Theoretical Computer Science
Fuzzy context-free languages: part 2: Recognition and parsing algorithms
Theoretical Computer Science
Automata theory based on quantum logic: Reversibilities and pushdown automata
Theoretical Computer Science
Determinization of fuzzy automata with membership values in complete residuated lattices
Information Sciences: an International Journal
Approximation and robustness of fuzzy finite automata
International Journal of Approximate Reasoning
Is there a need for fuzzy logic?
Information Sciences: an International Journal
Grammar theory based on lattice-ordered monoid
Fuzzy Sets and Systems
Fuzzy regular languages over finite and infinite words
Fuzzy Sets and Systems
Algebraic properties of LA-languages
Information Sciences: an International Journal
The relationships among several types of fuzzy automata
Information Sciences: an International Journal
On the use of words and fuzzy sets
Information Sciences: an International Journal
Modeling and control of fuzzy discrete event systems
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
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Fuzzy context-free max-* grammar (or FCFG"*, for short), as a straightforward extension of context-free grammar, has been introduced to express uncertainty, imprecision, and vagueness in natural language fragments. Li recently proposed the approximation of fuzzy finite automata, which may effectively deal with the practical problems of fuzziness, impreciseness and vagueness. In this paper, we further develop the approximation of fuzzy context-free grammars. In particular, we show that a fuzzy context-free grammar under max-* compositional inference can be approximated by some fuzzy context-free grammar under max-min compositional inference with any given accuracy. In addition, some related properties of fuzzy context-free grammars and fuzzy languages generated by them are studied. Finally, the sensitivity of fuzzy context-free grammars is also discussed.