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| Adaptiv A/B-test× | Adaptivt experiment× | |
|---|---|---|
| Ämnesområde | Försöksplanering | Försöksplanering |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1952 (Robbins); applied to A/B testing from ~2010s onward | 1940s–1970s (sequential foundations); formalised in clinical and behavioural research by 1980s–2000s |
| Upphovsperson≠ | Herbert Robbins (bandit framework); Thompson Sampling formalized by William R. Thompson | Abraham Wald (sequential analysis foundation); expanded by Robbins, Armitage, and others |
| Typ≠ | Adaptive experimental design | Experimental research design |
| Ursprungskälla≠ | Russo, D., Van Roy, B., Kazerouni, A., Osband, I., & Wen, Z. (2018). A Tutorial on Thompson Sampling. Foundations and Trends in Machine Learning, 11(1), 1–96. DOI ↗ | Chow, S. C., & Chang, M. (2008). Adaptive Design Methods in Clinical Trials. Chapman and Hall/CRC. ISBN: 978-1584886761 |
| Alias | adaptive AB test, bandit A/B test, multi-armed bandit testing, online adaptive experiment | adaptive design, response-adaptive randomization, adaptive trial, adaptive randomization |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | An Adaptive A/B test is an experimental design that dynamically reallocates traffic or participants toward better-performing variants during the experiment itself, rather than holding allocations fixed until the end. Drawing on multi-armed bandit algorithms such as Thompson Sampling or Upper Confidence Bound (UCB), it balances the exploration of uncertain variants with the exploitation of those already showing superior performance, typically yielding higher aggregate outcomes while still producing valid inferential conclusions. | An adaptive experiment is an experimental design in which pre-specified rules allow the protocol to be modified — such as reallocating participants to better-performing arms, stopping early for efficacy or futility, or changing sample size — based on accumulating interim data, while maintaining statistical validity. Adaptive designs are widely used in clinical trials, behavioural economics, and online platform testing to improve efficiency and ethics without sacrificing inferential rigour. |
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