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    TSP
    2008
    103views more  TSP 2008»
    Low-Rank Variance Approximation in GMRF Models: Single and Multiscale Approaches
    13 years 11 months ago
    Low-Rank Variance Approximation in GMRF Models: Single and Multiscale Approaches
    Download  www.mit.edu
    Abstract--We present a versatile framework for tractable computation of approximate variances in large-scale Gaussian Markov random field estimation problems. In addition to its ef...
    Dmitry M. Malioutov, Jason K. Johnson, Myung Jin C...
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    TSP
    2008
    187views more  TSP 2008»
    Invariant Description and Retrieval of Planar Shapes Using Radon Composite Features
    13 years 11 months ago
    Invariant Description and Retrieval of Planar Shapes Using Radon Composite Features
    Download  www.cv.fudan.edu.cn
    This paper proposes a novel feature-based invariant descriptor termed Radon composite features (RCFs) for planar shapes. Instead of analyzing shapes directly in the spatial domain,...
    Yun Wen Chen, Yan Qiu Chen
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    TSP
    2008
    99views more  TSP 2008»
    Sphere Decoding With a Probabilistic Tree Pruning
    13 years 11 months ago
    Sphere Decoding With a Probabilistic Tree Pruning
    Download  ipl.korea.ac.kr
    In this paper, we present a near ML-achieving sphere decoding algorithm that reduces the number of search operations in the sphere-constrained search. Specifically, by adding a pro...
    Byonghyo Shim, Insung Kang
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    TSP
    2008
    72views more  TSP 2008»
    Seismic Velocity and Polarization Estimation for Wavefield Separation
    13 years 11 months ago
    Seismic Velocity and Polarization Estimation for Wavefield Separation
    Download  www.ese.wustl.edu
    Abstract--We address the problem of estimating the shape parameters of seismic wavefields using linear arrays of three-component (3C) vector sensors with uncertain acquisition geom...
    Daniela Donno, Arye Nehorai, Umberto Spagnolini
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    TSP
    2008
    88views more  TSP 2008»
    Statistical Performance of MUSIC-Like Algorithms in Resolving Noncircular Sources
    13 years 11 months ago
    Statistical Performance of MUSIC-Like Algorithms in Resolving Noncircular Sources
    Download  www-public.int-evry.fr
    Abstract--This paper addresses the resolution of the conventional and noncircular MUSIC algorithms for arbitrary circular and noncircular second-order distributions of two uncorrel...
    Habti Abeida, Jean Pierre Delmas
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    TSP
    2008
    87views more  TSP 2008»
    Joint Data Detection and Channel Tracking for OFDM Systems With Phase Noise
    13 years 11 months ago
    Joint Data Detection and Channel Tracking for OFDM Systems With Phase Noise
    Download  ivpl.eecs.northwestern.edu
    This paper addresses the problem of data detection in orthogonal frequency division multiplexing (OFDM) systems operating under a time-varying multipath fading channel. Optimal det...
    Stelios Stefanatos, Aggelos K. Katsaggelos
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    TSP
    2008
    64views more  TSP 2008»
    A Low-Complexity High-Performance Preprocessing Algorithm for Multiuser Detection Using Gold Sequences
    13 years 11 months ago
    A Low-Complexity High-Performance Preprocessing Algorithm for Multiuser Detection Using Gold Sequences
    Download  www.control.isy.liu.se
    Daniel Axehill, Fredrik Gunnarsson, Anders Hansson
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    TSP
    2008
    146views more  TSP 2008»
    Improved M-FOCUSS Algorithm With Overlapping Blocks for Locally Smooth Sparse Signals
    13 years 11 months ago
    Improved M-FOCUSS Algorithm With Overlapping Blocks for Locally Smooth Sparse Signals
    Download  www.bsp.brain.riken.jp
    Abstract-- The FOCal Underdetermined System Solver (FOCUSS) algorithm has already found many applications in signal processing and data analysis, whereas the regularized MFOCUSS al...
    Rafal Zdunek, Andrzej Cichocki
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    TSP
    2008
    111views more  TSP 2008»
    Upper Bound Kullback-Leibler Divergence for Transient Hidden Markov Models
    13 years 11 months ago
    Upper Bound Kullback-Leibler Divergence for Transient Hidden Markov Models
    Download  sail.usc.edu
    Abstract--This paper reports an upper bound for the Kullback
    Jorge Silva, Shrikanth Narayanan
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    TSP
    2008
    174views more  TSP 2008»
    Complex ICA Using Nonlinear Functions
    13 years 11 months ago
    Complex ICA Using Nonlinear Functions
    Download  www.csee.umbc.edu
    We introduce a framework based on Wirtinger calculus for nonlinear complex-valued signal processing such that all computations can be directly carried out in the complex domain. Th...
    Tülay Adali, Hualiang Li, Mike Novey, J.-F. C...
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