Source: https://www.researchgate.net/profile/Mohamed-Mourad-Lafifi/post/Why-there-is-no-difference-in-KFCM-anf-FCM-results-for-clustering/attachment/59d640f579197b807799d159/AS%3A433007623446529%401480248470291/download/Comparison+of+K-Means+and+Fuzzy+C-Means+Algorithms+on+Different+Cluster+Structures.pdf