Approximate equalities using topological space

Tripathi, Alka; Tyagi, Kanchan

doi:10.1504/ijgcrsis.2014.068024

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Cited by 4 publications

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“…Tiwari et al (2014) introduced the rough finite state machine with output. Tripathi et al (2014) proposed approximate equalities of rough set using interior and closure (rough equality, rough equivalence, approximate rough equality and approximate rough equivalence). We found that rough equivalence is better in real life situation than others.…”

Section: Introductionmentioning

confidence: 99%

Rough Fuzzy Automata and Rough Fuzzy Grammar

Tripathi

Tyagi

2017

International Journal of Fuzzy System Applications

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Automata theory plays a key role in computational theory as many computational problems can be solved with its help. Formal grammar is a special type of automata designed for linguistic purposes. Formal grammar generates formal languages. Rough grammar and rough languages were introduced to incorporate the imprecision of real languages in formal languages. These languages have limitations on uncertainty. The authors have considered both uncertainty and approximations to define rough fuzzy grammar and rough fuzzy languages. Under certain restrictions, their grammar reduces to formal grammar. Furthermore, the authors have proposed definition of rough fuzzy automata that accepts rough fuzzy regular language.

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Section: Introductionmentioning

confidence: 99%