What does an online A/B test compare for two model versions?

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  1. Two models on unrelated populations
  2. Control and variant under one experiment
  3. Training loss from different years

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References

  1. Google Cloud A/B Experiment Monitoring docs.cloud.google.com/retail/docs/a-b-monitor Checked 2026-10-10.
  2. Google Cloud MLOps Guide docs.cloud.google.com/architecture/mlops-continuous-delivery-and-automation-pipelines-in-machine-learning Checked 2026-10-10.

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