Reducing computation overhead in MISO fuzzy systems

Replacing each multi-input single-output (MISO) fuzzy rule by an equivalent collection of single-input single-output (SISO) rules effects a considerab le saving in computation time. In this paper, we show that the conclusion i nferred from a MISO rule can be computed as either the union or intersectio n of the conclusions inferred from the equivalent SISO rules depending on w hether the fuzzy implication operator is non-increasing or non-decreasing w ith respect to its first argument. This is of the utmost importance in fuzz y reasoning applied to fuzzy systems with several MISO rules. (C) 2000 Else vier Science B.V. All rights reserved.