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Graph cluster randomization: network exposure to multiple universes
Graph cluster randomization network exposure multiple universes
2013/6/17
A/B testing is a standard approach for evaluating the effect of online experiments; the goal is to estimate the `average treatment effect' of a new feature or condition by exposing a sample of the ove...
Space-filling Latin Hypercube Designs based on Randomization Restrictions in Factorial Experiments
Computer experiments Nearly orthogonal arrays Spreads Stars
2013/6/13
Latin hypercube designs (LHDs) with space-filling properties are widely used for emulating computer simulators. Over the last three decades, a wide spectrum of LHDs have been proposed with space-filli...
Exact properties of Efron's biased coin randomization procedure
Accidental bias exact distribution theory randomization test
2010/10/14
Efron [Biometrika 58 (1971) 403--417] developed a restricted randomization procedure to promote balance between two treatment groups in a sequential clinical trial. He called this the biased coin des...