Multi-task compressive sensing with dirichlet process priors

Journal Article

Compressive sensing (CS) is an emerging £eld that, under appropriate conditions, can signi£cantly reduce the number of measurements required for a given signal. In many applications, one is interested in multiple signals that may be measured in multiple CS-type measurements, where here each signal corresponds to a sensing "task". In this paper we propose a novel multitask compressive sensing framework based on a Bayesian formalism, where a Dirichlet process (DP) prior is employed, yielding a principled means of simultaneously inferring the appropriate sharing mechanisms as well as CS inversion for each task. A variational Bayesian (VB) inference algorithm is employed to estimate the full posterior on the model parameters. Copyright 2008 by the author(s)/owner(s).

Full Text

Duke Authors

Cited Authors

  • Qi, Y; Liu, D; Dunson, D; Carin, L

Published Date

  • January 1, 2008

Published In

  • Proceedings of the 25th International Conference on Machine Learning

Start / End Page

  • 768 - 775

Digital Object Identifier (DOI)

  • 10.1145/1390156.1390253

Citation Source

  • Scopus