Title
Influence measures and stability for graphical models.
Abstract
Graphical models allow to represent a set of random variables together with their probabilistic conditional dependencies. Various algorithms have been proposed to estimate such models from data. The focus of this paper is on individual observations diagnosis issues. The use of an influence measure is a classical diagnostic method to measure the perturbation induced by a single element, in other terms we consider stability issue through jackknife. For a given graphical model, we provide tools to perform diagnosis on observations. In a second step we propose a filtering of the dataset to obtain a stable network. All along the paper an application to a gene expression dataset illustrates the proposals.
Year
DOI
Venue
2016
10.1016/j.jmva.2016.01.006
J. Multivariate Analysis
Keywords
Field
DocType
62-07,62-09,62G09,62G35
Econometrics,Data mining,Random variable,Jackknife resampling,Filter (signal processing),Robustness (computer science),Graphical model,Probabilistic logic,Statistics,Mathematics
Journal
Volume
Issue
ISSN
147
C
0047-259X
Citations 
PageRank 
References 
0
0.34
5
Authors
2
Name
Order
Citations
PageRank
Avner Bar-Hen114812.81
Jean-Michel Poggi217416.19