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Recovering Block-structured Activations Using Compressive Measurements
Recovering Block-structured Activations Compressive Measurements
2012/11/22
We consider the problem of detection and localization of a small block of weak activation in a large matrix, from a small number of noisy, possibly adaptive, compressive (linear) measurements. This is...
Determining electrical and heat transfer parameters using coupled boundary measurements
electrical impedance tomography heat transfer inverse problem
2011/1/21
Let ⊂ Rn, n ≥ 3, be a smooth bounded domain and consider a coupled system in consisting of a conductivity equation ∇ · (x)∇u(t, x) =0 and an anisotropic heat equation −1(x)@t...
Near-Oracle Performance of Greedy Block-Sparse Estimation Techniques from Noisy Measurements
Near-Oracle Performance Greedy Block-Sparse Estimation Techniques Noisy Measurements
2010/11/30
This paper examines the ability of greedy algorithms to estimate a block sparse parameter vector from noisy measurements.In particular, block sparse versions of the orthogonal
matching pursuit and th...
