Ashaari, Salbiah and Turaev, Sherzod and Mohd Tamrin, Mohd Izzuddin and Okhunov, Abdurahim and Zhukabayeva, Tamara (2017) Multiset controlled grammars. Journal of Theoretical and Applied Information Technology, 95 (22). pp. 6089-6098. ISSN 1992-8645 E-ISSN 1817-3195
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Abstract
This study focusses on defining a new variant of regulated grammars called multiset controlled grammars as well as investigating their computational power. In general, a multiset controlled grammar is a grammar equipped with an arithmetic expression over multisets terminals where to every production in the grammar a multiset is assigned, which represents the number of the occurrences of terminals on the right-hand side of the production. Then a derivation in the grammar is said to be successful if only if its multiset value satisfies a certain relational condition. In the study, we have found that control by multisets is powerful tool and yet a simple method in regulation of generative processes in grammars. We have shown that multiset controlled grammars are at least as powerful as additive valence grammars, and they are at most powerful as matrix grammars.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 6846/59908 |
| Uncontrolled Keywords: | Multisets, Context-free Grammars, Regulated Grammars, Generative Capacity |
| Subjects: | Q Science > QA Mathematics Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering Kulliyyah of Information and Communication Technology Kulliyyah of Information and Communication Technology |
| Depositing User: | Dr. Sherzod Turaev |
| Date Deposited: | 08 Dec 2017 15:30 |
| Last Modified: | 17 Jan 2018 11:27 |
| URI: | http://irep.iium.edu.my/id/eprint/59908 |
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