word

A/B Testing

AY-BEE TES-ting

/ˈeɪ biː ˈtɛstɪŋ/

Listen

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Syllable breakdown

ABtesting

Dictionary meaning

A controlled experiment in which two model variants (A and B) are simultaneously served to different user segments to compare performance on a live metric

Examples

A/B testing revealed that the retrained model improved click-through rate by 4%.
Running A/B testing in production requires careful traffic splitting and statistical analysis.

Synonyms: split testing, controlled experiment, online experiment

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