Journal
GRANULAR COMPUTING
Volume 2, Issue 1, Pages 1-12Publisher
SPRINGERNATURE
DOI: 10.1007/s41066-016-0022-5
Keywords
Rule-based systems; Structural compression; Optimal allocation of information granularity; Particle swarm optimization; Granular fuzzy sets
Funding
- Universiti Teknikal Malaysia Melaka
- Ministry of Education Malaysia [FRGS/2013/FTMK/ICT02/02/1/F00161]
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In this study, we develop a comprehensive design process of granular fuzzy rule-based systems. These constructs arise as a result of a structural compression of fuzzy rule-based systems in which a subset of originally existing rules is retained. Because of the reduced subset of the originally existing rules, the remaining rules are made more abstract (general) by expressing their conditions in the form of granular fuzzy sets (such as interval-valued fuzzy sets, rough fuzzy sets, probabilistic fuzzy sets, etc.), hence the name of granular fuzzy rule-based systems emerging during the compression of the rule bases. The design of these systems dwells upon an important mechanism of allocation of information granularity using which the granular fuzzy rules are formed. The underlying optimization consists of two phases: structural (being of combinatorial character in which a subset of rules is selected) and parametric (when the conditions of the selected rules are made granular through an optimal allocation of information granularity). We implement the cooperative particle swarm optimization to solve optimization problem. A number of experimental studies are reported; those include fuzzy rule-based systems.
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