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Supervised learning

As explained in The Art of AI Product Development

Supervised learning is machine learning in which a model learns a mapping from inputs to explicitly labeled targets.

Supervised learning trains a model on examples that pair inputs with explicit target labels. These labels provide a clear learning signal: the model learns to map features to the result it should predict. section 3.1.2 section 3.4

Automating user segmentation

A product team first uses clustering to discover behavioral segments, then trains a supervised classifier to assign new users to those existing segments. Logistic regression offers probabilities and interpretable feature contributions; neural networks capture more complex relationships but provide less transparency. The team chooses logistic regression because marketers need to understand and act on the predictions. section 4.1.6 section 4.2.2

Building a supervised-learning dataset requires deliberate choices about labels, quality, and operational feedback.

  • Pair each input with the target label the model must predict. section 4.2.1
  • Reuse reliable existing labels when available, such as cluster assignments. section 4.2.1
  • Accelerate labeling with proxy data, automated labels, live user feedback, or human annotation, while checking distribution shift, bias, oversight, fatigue, and subjectivity. section 4.2.1
  • Balance predictive performance against interpretability and the needs of people who must use the output. section 4.2.2
Table 4.2 A sample of labeled examples

Features

Label

user_id

purchased_items

purchase_value

last_active

n_visits

search_queries

segment

abhj3k

2

908

2024-04-30 08:36:24

48

3

Seekers

shj67d

0

0

2023-12-26 12:56:24

24

45

Conservatives

i963gh

12

673

2024-05-15 23:22:11

156

25

Indecisives

ty54df

20

1250

2024-05-10 14:21:07

190

5

Champions

Inspect representative feature-label pairs for a user-segmentation classifier. section 4.2.1

How The Art of AI Product Development covers it

How deep it goes
Explains labels, dataset creation, model choice, interpretability, and function fitting while flagging overfitting and underfitting.
Examples
Uses sentiment labels, animal-image labels, next-word prediction, and behavioral user segments as concrete input-target examples.
What it assumes
Assumes basic machine-learning vocabulary while defining labeled data, targets, learning signals, and practical annotation options.
What you can do after
Build models that predict explicit labels from input features and choose interpretable approaches when stakeholders must act on outputs.
How it connects
Connects supervised learning to labeled data, classification, clustering, predictive AI, logistic regression, neural networks, overfitting, and underfitting.

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This explainer was generated by Manning's knowledge graph from the text of The Art of AI Product Development. The section links point to the parts of the book it draws on.