Abstract
This paper discusses the issues of action aggregation and defuzzification in Mamdani-type fuzzy systems. The paper highlights the shortcomings of defuzzification techniques associated with the customary interpretation of the sentence connective 'and' by means of the set union operation. These include loss of smoothness of the output characteristic and inaccurate mapping of the fuzzy response. The most appropriate procedure for aggregating the outputs of different fuzzy rules and converting them into crisp signals is then suggested. The advantages in terms of increased transparency and mapping accuracy of the fuzzy response are demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 747-759 |
| Number of pages | 13 |
| Journal | Institution of Mechanical Engineers. Proceedings. Part C: Journal of Mechanical Engineering Science |
| Volume | 216 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2002 |
Keywords
- COG method
- Defuzzification
- Fuzzy logic
- MOM method
- Output aggregation
- Weighted average
ASJC Scopus subject areas
- Mechanical Engineering