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Unsupervised learning is hard, and the pick K problem is probably the hardest part. For PCA or factor analysis, there's lots of ways but without some way of de
by disgruntledphd2 2y ago
Unsupervised learning is hard, and the pick K problem is probably the hardest part.
For PCA or factor analysis, there's lots of ways but without some way of determining ground truth it's difficult to know if you've done a good job.