Chunked-and-Averaged Estimators for Vector Parameters
  A divide-and-conquer method for parameter estimation is the chunked-and-averaged (CA) estimator. CA estimators have been studied for univariate parameters under independent and identically distributed (IID) sampling. We study the CA estimators of vector parameters and under non-IID sampling. 
Hien D. Nguyen and Geoffrey J. McLachlan
stat.CO