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TSP
2016
57views more  TSP 2016»
3 years 7 months ago
A Fast Hyperplane-Based Minimum-Volume Enclosing Simplex Algorithm for Blind Hyperspectral Unmixing
—Hyperspectral unmixing (HU) is a crucial signal processing procedure to identify the underlying materials (or endmembers) and their corresponding proportions (or abundances) fro...
Chia-Hsiang Lin, Chong-Yung Chi, Yu-Hsiang Wang, T...
TSP
2016
74views more  TSP 2016»
3 years 7 months ago
Binary Sparse Coding of Convolutive Mixtures for Sound Localization and Separation via Spatialization
—We propose a sparse coding approach to address the problem of source-sensor localization and speech reconstruction. This approach relies on designing a dictionary of spatialized...
Afsaneh Asaei, Mohammad Javad Taghizadeh, Saeid Ha...
TSP
2016
53views more  TSP 2016»
3 years 7 months ago
Randomized Algorithms for Distributed Nonlinear Optimization Under Sparsity Constraints
Abstract—Distributed optimization in multi-agent systems under sparsity constraints has recently received a lot of attention. In this paper, we consider the in-network minimizati...
Chiara Ravazzi, Sophie M. Fosson, Enrico Magli
TSP
2016
64views more  TSP 2016»
3 years 7 months ago
Analysis SimCO Algorithms for Sparse Analysis Model Based Dictionary Learning
—In this paper, we consider the dictionary learning problem for the sparse analysis model. A novel algorithm is proposed by adapting the simultaneous codeword optimization (SimCO...
Jing Dong, Wenwu Wang, Wei Dai, Mark D. Plumbley, ...
TSP
2016
56views more  TSP 2016»
3 years 7 months ago
Sampling Sparse Signals on the Sphere: Algorithms and Applications
Abstract—We propose a sampling scheme that can perfectly reconstruct a collection of spikes on the sphere from samples of their lowpass-filtered observations. Central to our alg...
Ivan Dokmanic, Yue M. Lu
TSP
2016
56views more  TSP 2016»
3 years 7 months ago
On the Ergodic Secret-Key Agreement Over Spatially Correlated Multiple-Antenna Channels With Public Discussion
We consider secret-key agreement with public discussion over multiple-input multiple-output (MIMO) Rayleigh fast-fading channels under correlated environment. We assume that trans...
Marwen Zorgui, Zouheir Rezki, Basel Alomair, Eduar...
TSP
2016
45views more  TSP 2016»
3 years 7 months ago
Consensus Algorithms With State-Dependent Weights
We provide an analysis of a consensus-type algorithm with weights dependent only on the received data. Differently from previous approaches that require a global knowledge of the ...
Ondrej Sluciak, Markus Rupp
TSP
2016
42views more  TSP 2016»
3 years 7 months ago
A Multiscale Pyramid Transform for Graph Signals
—Multiscale transforms designed to process analog and discrete-time signals and images cannot be directly applied to analyze high-dimensional data residing on the vertices of a w...
David I. Shuman, Mohammad Javad Faraji, Pierre Van...
TSP
2016
58views more  TSP 2016»
3 years 7 months ago
Joint Community and Anomaly Tracking in Dynamic Networks
Abstract—Most real-world networks exhibit community structure, a phenomenon characterized by existence of node clusters whose intra-edge connectivity is stronger than edge connec...
Brian Baingana, Georgios B. Giannakis
TSP
2016
57views more  TSP 2016»
3 years 7 months ago
Dual-Function Radar-Communications: Information Embedding Using Sidelobe Control and Waveform Diversity
—We develop a new technique for a dual-function system with joint radar and communication platforms. Sidelobe control of the transmit beamforming in tandem with waveform diversit...
Aboulnasr Hassanien, Moeness G. Amin, Yimin D. Zha...
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