The purpose of this paper is to define and explain the meaning behind the term ‘downdating’ which has recently been introduced in the statistics literature from the computing sciences. We give a review of the historical background and describe the main statistical application areas which make reference to the terminology. Extensive references are provided to the very active current research effort on downdating in both the statistical and computing sciences and opportunities for development in statistical science are outlined.
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Bart Mertens (2001) studied this question.
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