February 2019
Intermediate to advanced
386 pages
9h 54m
English
Content preview from Hands-On Unsupervised Learning with Python
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Fuzzy c-means
The first algorithm that we will propose is a variation of k-means that's based on soft assignments. The name Fuzzy c-means derives from the concept of a fuzzy set, which is an extension of classical binary sets (that is, in this case, a sample can belong to a single cluster) to sets based on the superimposition of different subsets representing different regions of the whole set. For example, a set based on the age of some users can have the degrees young, adult, and senior, associated with three different (and partially overlapping) age ranges: 18-35, 28-60, and >50. So, for example, a 30-year-old user is both young and adult, to different degrees (and, indeed, is a borderline user, considering the boundaries). For further ...
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