Asked about Anomaly detection and working with embeddings

How do you evaluate clustering when you have no labels?

An answer that works

By inspection and stability. Read samples from each cluster to judge coherence, and rerun with different seeds to see whether the grouping holds.

Reading an answer is not being able to give one. The section that teaches this is Anomaly detection and working with embeddings, 4 hours of Unsupervised learning.

Learn this properly