학술논문
Is the mode elicitable relative to unimodal distributions?
Document Type
Working Paper
Source
Biometrika, Volume 109, Issue 4, December 2022, Pages 1157-1164
Subject
Language
Abstract
Statistical functionals are called elicitable if there exists a loss or scoring function under which the functional is the optimal point forecast in expectation. While the mean and quantiles are elicitable, it has been shown in Heinrich (2014) that the mode cannot be elicited if the true distribution can follow any Lebesgue density. We strengthen this result substantially, showing that the mode cannot be elicited if the true distribution is any distribution with continuous Lebesgue density and unique local maximum. Likewise, the mode fails to be identifiable relative to this class.
Comment: 10 pages, 1 figure
Comment: 10 pages, 1 figure