TY - GEN
T1 - Trading off communications bandwidth with accuracy in adaptive diffusion networks
AU - Chouvardas, Symeon
AU - Slavakis, Konstantinos
AU - Theodoridis, Sergios
PY - 2011
Y1 - 2011
N2 - In this paper, a novel algorithm for bandwidth reduction in adaptive distributed learning is introduced. We deal with diffusion networks, in which the nodes cooperate with each other, by exchanging information, in order to estimate an unknown parameter vector of interest. We seek for solutions in the framework of set theoretic estimation. Moreover, in order to reduce the required bandwidth by the transmitted information, which is dictated by the dimension of the unknown vector, we choose to project and work in a lower dimension Krylov subspace. This provides the benefit of trading off dimensionality with accuracy. Full convergence properties are presented, and experiments, within the system identification task, demonstrate the robustness of the algorithmic technique.
AB - In this paper, a novel algorithm for bandwidth reduction in adaptive distributed learning is introduced. We deal with diffusion networks, in which the nodes cooperate with each other, by exchanging information, in order to estimate an unknown parameter vector of interest. We seek for solutions in the framework of set theoretic estimation. Moreover, in order to reduce the required bandwidth by the transmitted information, which is dictated by the dimension of the unknown vector, we choose to project and work in a lower dimension Krylov subspace. This provides the benefit of trading off dimensionality with accuracy. Full convergence properties are presented, and experiments, within the system identification task, demonstrate the robustness of the algorithmic technique.
KW - Adaptive distributed learning
KW - Krylov subspaces
KW - projections
UR - http://www.scopus.com/inward/record.url?scp=80051660018&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051660018&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946915
DO - 10.1109/ICASSP.2011.5946915
M3 - Conference contribution
AN - SCOPUS:80051660018
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2048
EP - 2051
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -