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Comment: Link to AB Testing page

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  • Absolute Truth / Matrix / Grid / TREC / Relevancy Assertions
    • The correct answers for each search are known ahead of time
    • Humans judges often decide these correct answers, stored as Relevancy Assertions
    • Can be labor intensive to setup
    • ... continued on the Relevancy Assertion Testing page
  • AB Testing / User Preference
    • Tracks explicit or implicit preferences between engines A/B
    • Often dispenses with the notion of the "correct" answer
    • Can be easier to setup, but some fear the best answers will be missed by both engines
    • continued on the AB Testing page

Beyond Precision and Recall: How Engines are Judged

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