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math.ST2016
A comparison of pivotal sampling and unequal probability sampling with replacement
Guillaume Chauvet, Anne Ruiz-Gazen
We prove that any implementation of pivotal sampling is more efficient than multinomial sampling. This property entails the weak consistency of the Horvitz-Thompson estimator and t…
stat.ME2016
Exact balanced random imputation for sample survey data
Guillaume Chauvet, Wilfried Do Paco
Surveys usually suffer from non-response, which decreases the effective sample size. Item non-response is typically handled by means of some form of random imputation if we wish to…