Alfred Hero - Research in second order graphical models



Recent publications
  • A.O. Hero and B. Rajaratnam, "Hub discovery in partial correlation graphical models," arXiv:1109.6846, Sept. 2011. (.html)
  • K. S. Xu, M. Kliger and A.O. Hero, "Adaptive Evolutionary Clustering," arXiv:1104.1990, April. 2011. (.html)
  • A.O. Hero and B. Rajaratnam, "Large Scale Correlation Screening," to appear in Journ. Amer. Statistical Association (JASA). arXiv:1102.1204, Feb. 2011. (.html)
  • A. Wiesel and A.O. Hero, "Distributed covariance estimation in Gaussian graphical models," to appear in IEEE Trans. on Signal Processing, 2011. (.pdf) .
  • Y. Chen, A. Wiesel and A. O. Hero, "Robust shrinkage estimation of high dimensional covariance matrices," vol. 59, no 9, pp. 4097-4107, IEEE Trans. on Signal Processing, Sept 2011. Final prepublication version (.pdf)
  • Y. Chen, A. Wiesel, Y. C. Eldar and A. O. Hero III, "Shrinkage Algorithms for MMSE Covariance Estimation," IEEE Transactions on Signal Processing, vol. 58, no. 10, pp. 5016-5029, Oct. 2010. Available on arXiv (.html)
  • A. Wiesel, Y. Eldar and A.O. Hero, 'Covariance estimation in decomposable Gaussian graphical models,' IEEE Trans. on Signal Processing, vol. 58, no. 3, pp. 1482-1492, Mar. 2010. (.pdf)
  • Y. Chen, A. Wiesel, and A.O. Hero, "Robust Shrinkage Estimation of High-dimensional Covariance Matrices," IEEE Workshop on Sensor, Array and Multichannel Signal Processing (SAM), Jerusalem, Oct 2010.
  • A. Wiesel and A.O. Hero, "Distributed covariance estimation in Gaussian graphical models," IEEE Workshop on Sensor, Array and Multichannel Signal Processing (SAM), Jerusalem, Oct 2010.
  • A. Wiesel and A.O. Hero, 'Decomposable Principal Components Analysis,' IEEE Trans. on Signal Processing, vol. 57, no. 11, pp. 4369-4378, 2009. Available on Arxiv (.html)
  • A. Wiesel, M. Kliger and A.O. Hero, "A greedy approach to sparse canonical correlation analysis," ArXiv, Jan 18, 2008, (.html)