Recognition of anomalies of an a priori unknown type
Čebyševskij sbornik, Tome 23 (2022) no. 5, pp. 227-240
Voir la notice de l'article provenant de la source Math-Net.Ru
In the present article we propose a modification of the PaDiM anomaly detection method which maps images to vectors and then calculates the Mahalanobis distance between such vectors and the distribution of the vectors of the training set. Of the coordinate axes of the vectors we choose a subset of such that the distribution along them is close to normal according to the chosen statistical criterion. The uniformization procedure is then applied to those coordinates and the Mahalanobis distance is calculated. This approach is shown to increase the ROCAUC value in comparison with the PaDiM method.
Keywords:
anomaly detection, normal distribution, uniformization.
@article{CHEB_2022_23_5_a18,
author = {A. O. Ivanov and G. V. Nosovskiy and V. A. Kibkalo and M. A. Nikulin and F. Yu. Popelensky and D. A. Fedoseev and I. V. Gribushin and V. V. Zlobin and S. S. Kuzin and I. L. Mazurenko},
title = {Recognition of anomalies of an a priori unknown type},
journal = {\v{C}eby\v{s}evskij sbornik},
pages = {227--240},
publisher = {mathdoc},
volume = {23},
number = {5},
year = {2022},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/CHEB_2022_23_5_a18/}
}
TY - JOUR AU - A. O. Ivanov AU - G. V. Nosovskiy AU - V. A. Kibkalo AU - M. A. Nikulin AU - F. Yu. Popelensky AU - D. A. Fedoseev AU - I. V. Gribushin AU - V. V. Zlobin AU - S. S. Kuzin AU - I. L. Mazurenko TI - Recognition of anomalies of an a priori unknown type JO - Čebyševskij sbornik PY - 2022 SP - 227 EP - 240 VL - 23 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2022_23_5_a18/ LA - ru ID - CHEB_2022_23_5_a18 ER -
%0 Journal Article %A A. O. Ivanov %A G. V. Nosovskiy %A V. A. Kibkalo %A M. A. Nikulin %A F. Yu. Popelensky %A D. A. Fedoseev %A I. V. Gribushin %A V. V. Zlobin %A S. S. Kuzin %A I. L. Mazurenko %T Recognition of anomalies of an a priori unknown type %J Čebyševskij sbornik %D 2022 %P 227-240 %V 23 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2022_23_5_a18/ %G ru %F CHEB_2022_23_5_a18
A. O. Ivanov; G. V. Nosovskiy; V. A. Kibkalo; M. A. Nikulin; F. Yu. Popelensky; D. A. Fedoseev; I. V. Gribushin; V. V. Zlobin; S. S. Kuzin; I. L. Mazurenko. Recognition of anomalies of an a priori unknown type. Čebyševskij sbornik, Tome 23 (2022) no. 5, pp. 227-240. http://geodesic.mathdoc.fr/item/CHEB_2022_23_5_a18/