Efficient rounding

By chance, is anyone here familiar with the paper entitled "Efficient rounding of approximate designs"? By Pukelsheim and Rieder, it was published in Biometrika, 1992 (79, 4, pp. 763-70). I would like to discuss it with someone who understands it in order to determine whether or not my take on it is correct.

It is a rather obscure subject; the paper's summary is as follows:

"Discretization methods to round an approximate design into an exact design for a given sample size n are discussed. There is a unique method, called efficient rounding, which has the smallest loss of efficiency under a wide family of optimality criteria. The efficient rounding method is a multiplier method of apportionment which otherwise is known as the method of John Quincy Adams or the method of smallest divisors."

Edited June 29, 200817 yr by JEQuidam
Formatted