Alfred Hero - Interests in Signal Modeling

I am interested in modeling and representation of signals for detection and classification applications. A principal objective has been to detect features of a signal such as dimensionality, spectral support, and other non-linear components using time-frequency, space-frequency, and regression trees. A selection of recent papers follow.
  • "Tree structured non-linear signal modeling and prediction," O. Michel, A. O . Hero and A.-E. Badel, IEEE Trans. on Signal Processing, Vol. 43, pp. 3027-3041, Nov. 1999. IEEE Explore reprint (.pdf) .

  • A. Badel, O. Michel and A. O. Hero, "Arbres de regression: modelisation non-parametrique et analyse des series temporelles", Traitement du Signal, Vol. 14, No. 2, pp. 117-133, June 1997 (English title: "Regression trees for non-parametric modeling and time series prediction").

  • W.J. Williams, E.J. Zalubas, A.O. Hero,
    ``Separating desired image and signal invariant components from extraneous variations,'' Proceedings of SPIE Advanced Architectures and Algorithms for Signal Processing , Aug. 1996.

  • R. Goyal, B. Vikstrom, A.O. Hero and F. Morady,
    ``Simulation of cardiac memory in a computer model utilizing capacitive coupling,'' Journal of Electrocardiology , Feb. 1996.

  • A-E Badel, O. Michel, and Alfred Hero
    "Arbres de regression pour l'analyse de series chaotiques," Proceedings of GRETSI , Juan-les-Pins, France, Sept. 1995.

  • O. Michel, A.O. Hero, A.E. Badel and P. Flandrin
    "Tree-based modeling, prediction, and analysis of chaotic time series," Proceedings of IEEE Workshop on Non-linear Signal Processing , Halkiditi Greece, June 1995.

  • O. Michel and A. O. Hero
    "Tree structured non-linear signal modeling and prediction," Proceedings of the IEEE 1995 International Conference on Acoustics, Speech and Signal Processing , Detroit, pp. 1689-1692, 1995.

  • M.L. Brown, W.J. Williams and A.O. Hero
    "Non-orthogonal Gabor representations of biological signals," Proceedings of the IEEE 1994 International Conference on Acoustics, Speech and Signal Processing, Adelaide, Australia, pp. IV.305-308, April 1994.

  • W.J. Williams, M.L. Brown, A.O. Hero
    "Uncertainty, information and time frequency distributions," SPIE Advanced Architectures and Algorithms for Signal Processing , vol. 1566, no. 12, pp. 144-156, July 1991.

    Prof. Alfred Hero III
    Dept. of Electrical Engineering and Computer Science
    The University of Michigan
    1301 Beal Avenue
    Ann Arbor, MI 48109-2122
    Tel. (313) 763-0564
    FAX: (313) 763-8041
    WWW: http://www.eecs.umich.edu/~hero/hero.html
    email: