Suppose we are looking at a scatter chart and from there, by visual inspection, I would like to pick up the coordinates (initial centers) based on the density of the points. Whats are options or tricks known.
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1$\begingroup$ If you want to use K-means, then consider k-means++ centroid initialization $\endgroup$– MotiNKCommented Jun 13, 2017 at 10:20
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1 Answer
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At least a dozen of methods have been proposed.
Too many to list them all here.
The ELKI tool contains a number of them to try out and compare.
See Wikipedia for a few of them, and check relevant literature. There are several studies that compare different methods.
answered Jun 13, 2017 at 19:37