Feature Importance in Bayesian Assessment of Newborn Brain Maturity from EEG
Abstract
The methodology of Bayesian Model Averaging (BMA) is applied for assessment of newborn brain maturity from sleep EEG. In theory this methodology provides the most accurate assessments of uncertainty in decisions. However, the existing BMA techniques have been shown providing biased assessments in the absence of some prior information enabling to explore model parameter space in details within a reasonable time. The lack in details leads to disproportional sampling from the posterior distribution. In case of the EEG assessment of brain maturity, BMA results can be biased because of the absence of information about EEG feature importance. In this paper we explore how the posterior information about EEG features can be used in order to reduce a negative impact of disproportional sampling on BMA performance. We use EEG data recorded from sleeping newborns to test the efficiency of the proposed BMA technique.
Keywords
Cite
@article{arxiv.1002.4522,
title = {Feature Importance in Bayesian Assessment of Newborn Brain Maturity from EEG},
author = {L. Jakaite and V. Schetinin and C. Maple},
journal= {arXiv preprint arXiv:1002.4522},
year = {2010}
}
Comments
Proceedings of the 9th WSEAS International Conference on Artificial Intelligence, Knowledge Engineering and Data Bases (AIKED), University of Cambridge, UK, 2010, edited by L. A. Zadeh et al, pp 191 - 195