Now showing items 1-3 of 3

  • Improved Wavelet Denoising via Empirical Wiener Filtering 

    Ghael, Sadeep; Sayeed, Akbar M.; Baraniuk, Richard G. (1997-07-01)
    Wavelet shrinkage is a signal estimation technique that exploits the remarkable abilities of the wavelet transform for signal compression. Wavelet shrinkage using thresholding is asymptotically optimal in a minimax ...
  • Robust Distributed Estimation in Sensor Networks using the Embedded Polygons Algorithm 

    Delouille, Veronique; Neelamani, Ramesh; Baraniuk, Richard G. (2004-04-01)
    We propose a new iterative distributed algorithm for linear minimum mean-squared-error (LMMSE) estimation in sensor networks whose measurements follow a Gaussian hidden Markov graphical model with cycles. The <i>embedded ...
  • Robust Distributed Estimation Using the Embedded Subgraphs Algorithm 

    Delouille, Veronique; Neelamani, Ramesh; Baraniuk, Richard G. (2006-08-01)
    We propose a new iterative, distributed approach for linear minimum mean-square-error (LMMSE) estimation in graphical models with cycles. The embedded subgraphs algorithm (ESA) decomposes a loopy graphical model into a ...