Given a group of people who are possibly linked to each other socially, how does one find out who is actually linked to whom? Inspired by the compressive-sensing technique in signal processing, a team of researchers from China, U.S. and U.K. shows the way. Reconstructions of structures of gene-regulation networks or digital communication networks by this method may be the next step.
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Wang et al. (2011) studied this question.
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