AI engineering glossary · Evals guardrails AI security

What is reference-based evaluation?

Reference-based evaluation: Scoring a model output by comparing it with one or more known correct answers, using exact match, overlap measures or a judge that sees the reference. It works well when tasks have a definite right answer, such as extraction or classification, and is weaker for open-ended writing.

Level: beginnerTopic: Evals guardrails AI security

Reference-based evaluation: an example

A bot extracts the invoice total; the output '12,450' is compared with the labelled value '12450.00' after normalising the number format.

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Where you learn it

Reference-based evaluation is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

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