Research Article
Estimating the Concrete Compressive Strength Using Hard Clustering and Fuzzy Clustering Based Regression Techniques
Algorithm 2
Fuzzy
-Means (FCM) Clustering.
Method: | (1) Fix , , , . Choose an initial matrix . Then at Step , , = 0, 1, …, LMAX. | (2) Computer means , with the following equation: | ; | (3) Compute an updated membership matrix | with the following equation: | ; ; | (4) Compare to in any convenient matrix norm. If < , stop. Otherwise set | = and return to . |
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