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chapter 40

unsupervised learning, embeddings, and recommenders

not every useful model has labels. cluster, compare, retrieve, and recommend by turning examples into useful neighborhoods.

4 live lessons · 28 live steps · 104 XP

unsupervised learning, embeddings, and recommenders

Unsupervised workflows help when labels are missing but grouping, search, dedupe, or recommendation would make messy information easier to use. This chapter teaches the plain-English idea: similar things can be placed near each other, but nearby does not mean true.

The examples use customer feedback themes, policy-doc search, research-note dedupe, and related help articles. You will practice choosing useful metadata, inspecting rankings, spotting bad groups, and adding human review where similarity can mislead.

By the end, you can turn embeddings or clusters into a reviewable artifact: query, metadata, examples, suggested group or match, and the human check needed before anyone acts on it.

lessons in this chapter

  1. 01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps01clustering without labels7 steps
  2. 02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps02dimensionality and distance traps7 steps
  3. 03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps03embeddings as features, not magic7 steps
  4. 04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps04mission: tiny recommender7 steps