If we find a category that has a very tight cluster, such that for that category it’s reasonably straightforward to define that cluster, and only a tiny handful of distant outliers that seem to only shakily fit with the rest of the category, than it may be wise in some cases to conciously redefine that category in terms of the explicit definition that represents the tight cluster, and maybe use a different category, or a broader one, to represent or include those outliers.
If we find a category that has a very tight cluster, such that for that category it’s reasonably straightforward to define that cluster, and only a tiny handful of distant outliers that seem to only shakily fit with the rest of the category, than it may be wise in some cases to conciously redefine that category in terms of the explicit definition that represents the tight cluster, and maybe use a different category, or a broader one, to represent or include those outliers.