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Multiobjective Evolutionary Interpretable Type-2 Fuzzy Systems With Structure and Parameter Learning for Hexapod Robot Control
- Source :
- IEEE Transactions on Systems, Man, and Cybernetics: Systems. 52:3066-3078
- Publication Year :
- 2022
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2022.
-
Abstract
- This article proposes a data-driven multiobjective evolutionary interval type-2 fuzzy-logic system (IT2FLS) learning approach that considers both system performance and rule interpretability. One characteristic of the evolutionary learning framework is that the IT2FLS structure is incrementally generated instead of searching from an initially huge grid-type rule base, which significantly reduces the parameter search space. Another one is that a new constrained objective function is proposed to improve the distinguishability of the generated interval type-2 fuzzy sets (FSs) without restricting them to be evenly distributed. Because of the tradeoff between system performance and interpretability, a new multiobjective ant colony optimization (ACO) algorithm is proposed to optimize the IT2FLS parameters and improve optimization performance. The evolutionary IT2FLS learning approach is applied to control a real wall-following hexapod robot. The approach shows the advantages of model-free design and interpretability and robustness to noise in the evolved type-2 fuzzy rules. Simulations with performance comparisons and experiments in controlling a real robot show the advantages of the learning approach.
- Subjects :
- Hexapod
Computer science
business.industry
Ant colony optimization algorithms
Fuzzy set
Interval (mathematics)
Fuzzy control system
Fuzzy logic
Computer Science Applications
Human-Computer Interaction
Control and Systems Engineering
Robustness (computer science)
Artificial intelligence
Electrical and Electronic Engineering
business
Software
Interpretability
Subjects
Details
- ISSN :
- 21682232 and 21682216
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Systems, Man, and Cybernetics: Systems
- Accession number :
- edsair.doi...........c77c7df4905f73300c51666cb64042ed