A method worth keeping close.

Andrew Ng · illustrated avatarAndrew NgAnalytical perspectiveAN-P02

PRODUCT ADVISORY COUNCIL

Inspect outputs before designing evaluation

A small prototype can reveal which failures matter to users.

Product Advisory Council · Method card
Andrew Ng · illustrated avatarAndrew NgAnalytical perspectiveAN-P02

The method

Inspect outputs before designing evaluation

A small prototype can reveal which failures matter to users.

When to use it

  • Generative quality cannot be captured by one metric.

Ask yourself

  • Should we build a huge evaluation set first?

Put it into action

  • Inspect early outputs, classify important errors, and collect examples. Separate objective measures from subjective judgment and update the set as failures emerge.

Keep these limits in mind

  • Small samples are a starting point, not proof of release reliability; model-based grading also needs calibration.
Method summary · Not a personal quote

An analytical method adapted from the public skill package, not a reply or endorsement by the person represented.
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