TY - JOUR
T1 - Discussion of “Multivariate Functional Outlier Detection”, by Mia Hubert, Peter Rousseeuw and Pieter Segaert
AU - Paindaveine, Davy
AU - Van Bever, Germain
PY - 2015/7/7
Y1 - 2015/7/7
N2 - We present a discussion of Hubert et al. (2015)—hereafter, HRS15—that splits into two parts. In the first one, we argue that some structural properties of depth may, in some cases, limit its relevance for outlier detection. We also propose an alternative to bagdistances, which, while still based on depth, does not suffer from the same limitations. In the second part of the discussion, we investigate the possible uses of the weight functions that may enter the various integral functionals considered in HRS15.
AB - We present a discussion of Hubert et al. (2015)—hereafter, HRS15—that splits into two parts. In the first one, we argue that some structural properties of depth may, in some cases, limit its relevance for outlier detection. We also propose an alternative to bagdistances, which, while still based on depth, does not suffer from the same limitations. In the second part of the discussion, we investigate the possible uses of the weight functions that may enter the various integral functionals considered in HRS15.
KW - Bagdistances
KW - Outlier detection
KW - Statistical depth
KW - Weight functions
UR - http://www.scopus.com/inward/record.url?scp=84938747786&partnerID=8YFLogxK
U2 - 10.1007/s10260-015-0307-x
DO - 10.1007/s10260-015-0307-x
M3 - Article
AN - SCOPUS:84938747786
SN - 1618-2510
VL - 24
SP - 223
EP - 231
JO - Statistical Methods and Applications
JF - Statistical Methods and Applications
IS - 2
ER -