Question & Answer
Question
How does the K-mean cluster node select initial records for clustering? Is there a pseudo - random number generator used and how is the seed value set to create the initial sample for the k-means algorithm? We see in the documentation (IBM Modeler Algorithms' Guide for Version 18.1.1) that the first record is used to create the initial cluster but then how are the subsequent clusters created. For instance, if k-means of 5 is specified, are the first 5 records used to create the centroids of the initial clusters?
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Modified date:
10 October 2022
UID
swg22015418