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Accuracy of multi-experts' prioritization under Mallows' model of errors creation
  • Quality

Accuracy of multi-experts' prioritization under Mallows' model of errors creation

Publication:
Quality Engineering
Date:
April 2021
Issue:
Volume 33 Issue 2
Pages:
pp. 286-299
Author(s):
Marmor, Yariv N., Gadrich, Tamar, Bashkansky, Emil
The copyright of this article is not held by ASQ.

Abstract

Prioritization is widely used in quality practice. Since the process is accompanied by unavoidable errors, in order to improve accuracy, prioritization is usually repeated by M independent experts, followed by aggregation of their decisions. The article studies the bias of such a procedure, under the assumption of a “gold standard” existence and Mallows’ model of errors creation, for different combinations of M, number of alternatives—n and probability of error-free prioritization P0. Thereby it becomes possible to know how many experts are required and how accurate must they be in order to prevent the bias from exceeding some threshold.

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