Distributed EM algorithms for density estimation and clustering in sensor networks

@article{Nowak2003DistributedEA,
title={Distributed EM algorithms for density estimation and clustering in sensor networks},
author={Robert D. Nowak},
journal={IEEE Trans. Signal Processing},
year={2003},
volume={51},
pages={2245-2253}
}

This paper considers the problem of density estimation and clustering in distributed sensor networks. It is assumed that each node in the network senses an environment that can be described as a mixture of some elementary conditions. The measurements are thus statistically modeled with a mixture of Gaussians, where each Gaussian component corresponds to one of the elementary conditions. This paper presents a distributed expectation–maximization (EM) algorithm for estimating the Gaussian… CONTINUE READING