Ami Wiesel      עמי ויזל

Ami Wiesel

The Rachel and Selim Benin School of Computer Science and Engineering.
The Hebrew University of Jerusalem, Israel.

Postdoc in University of Michigan, Ann Arbor with Prof. Alfred Hero's group.
PhD in Electrical Engineering in Technion with Prof. Yonina Eldar and Prof. Shlomo Shamai (Shitz).
MSc in Electrical Engineering in Tel Aviv University, with Prof. Hagit Messer.
BSc in Electrical Engineering in Tel Aviv University.

Contact information

B427 Rothberg Building
School of Computer Science and Engineering
The Hebrew University of Jerusalem
Jerusalem 91904, Israel

email: ami dot wiesel at huji dot ac dot il

phone/fax: 972-2-5494539


Monograph

Ami Wiesel and Teng Zhang (2015), "Structured Robust Covariance Estimation", Foundations and Trends(r) in Signal Processing: Vol. 8: No. 3, pp 127-216.

Journal publications

Y. Woodbridge, G. Elidan and A. Wiesel, Signal Detection in Complex Structured Para Normal Noise, IEEE Trans. on Signal Processing, Vol. 65, No. 9, May 2017.

I. Soloveychik and A. Wiesel, Joint Estimation of Inverse Covariance Matrices Lying in an Unknown Subspace, IEEE Trans. on Signal Processing, Vol. 65, No. 9, May 2017.

E. Peker and A. Wiesel, Fitting Generalized Multivariate Huber Loss Functions, IEEE Signal Processing Letters, Vol. 23, No. 11, Nov. 2016.

E. Simony, C. H. Honey, J. Chen, O. Lositsky, Y. Yeshurun, A. Wiesel and U. Hasson, Dynamic reconfiguration of the default mode network during narrative comprehension, Nature Communications, 7, July 2016.

A. De Maio, D. Orlando, I. Soloveychik and A. Wiesel, Invariance theory for adaptive radar detection in interference with group symmetric covariance matrix, IEEE Trans. on Signal Processing, Vol. 64, No. 23, Dec. 2016.

I. Soloveychik and A. Wiesel, Joint covariance estimation with mutual linear structure, IEEE Trans. on Signal Processing, Vol. 64, No. 6, March 2016.

I. Soloveychik, D. Trushin and A. Wiesel, Group Symmetric Robust Covariance Estimation, IEEE Trans. on Signal Processing, Vol. 64, No. 1, Jan. 2016.

I. Soloveychik and A. Wiesel, Performance analysis of Tyler's covariance estimator, IEEE Trans. on Signal Processing, Vol. 63, No. 2, pages 418-426, Jan. 2015.

P. Yang, Z. Tan, A. Wiesel and A. Nehorai, Placement of PMUs considering measurement phase angle mismatch, IEEE Trans. on Power Delivery, Vol. 30, No. 2, April 2015.

I. Soloveychik and A. Wiesel, Tyler's covariance matrix estimator in Elliptical models with convex structure, IEEE Trans. on Signal Processing, Vol. 62, No. 20, Oct. 2014.

A. Sloin, and A. Wiesel, Proper quaternion Gaussian graphical models, IEEE Trans. on Signal Processing, Vol. 62, No. 20, Oct. 2014.

Z. Meng, D. Wei, A. Wiesel and A. O. Hero III, Marginal likelihoods for distributed parameter estimation of Gaussian graphical models, IEEE Trans. on Signal Processing, Vol. 62, No. 20, Oct 2014.

T. Zhang, A. Wiesel and M. Greco, Multivariate Generalized Gaussian Distribution: Convexity and Graphical Models, IEEE Trans. on Signal Processing, Vol. 61, No. 16, pages 4141-4148, Aug. 2013.

P. Yang, Z. Tan, A. Wiesel and A. Nehorai, Power system state estimation using PMUs with imperfect synchronization, IEEE Trans. on Power Systems, Vol. 28, No. 4, pages 4162-4172, Nov. 2013.

A. Wiesel, O. Bibi and A. Globerson, Time varying autoregressive moving average models for covariance estimation, IEEE Trans. on Signal Processing, Vol. 61, No. 11, pages 2791-2801, June 2013.

A. Wiesel, Geodesic convexity and covariance estimation, IEEE Trans. on Signal Processing, Vol. 60, No. 12, pages 6182-6189, Dec. 2012.

A. Wiesel, Unified framework to regularized covariance estimation in scaled Gaussian models, IEEE Trans. on Signal Processing, Vol. 60, No. 1, pages 29-38, Jan. 2012.

K. H. Liu, A. Wiesel and D. C. Munson Jr., Synthetic aperture radar autofocus based on a bilinear model, IEEE Trans. on Image Processing, Vol. 21, No. 5, May 2011.

A. Wiesel and A. O. Hero III, Distributed covariance estimation in Gaussian graphical models, IEEE Trans. on Signal Processing, Vol. 60, No. 1, pages 211-219, Jan. 2012.

A. T. Puig, A. Wiesel, G. Fleury and A. O. Hero III, Multidimensional shrinkage-thresholding operator and Group LASSO penalties, IEEE Signal Processing Letters, Vol. 18, No. 6, pages 363-366, 2011.

K. H. Liu, A. Wiesel, and D. C. Munson Jr., Synthetic aperture radar autofocus via semidefinite relaxation, IEEE Trans. on Image Processing, Vol. 22, No. 6, pages 2317-2326, June 2013.

Y. Chen, A. Wiesel, and A. O. Hero III, Robust shrinkage estimation of high-dimensional covariance matrices, IEEE Trans. on Signal Processing, Vol. 59, No. 9, pages 4097-4107, 2011.

A. T. Puig, A. Wiesel, A. Zass, G. Ginsburg, G. Fleury, and A. O. Hero III, Order-Preserving Factor Analysis - Application to Longitudinal Gene Expression, IEEE Trans. on Signal Processing, Vol. 59, No. 9, pages 4447-4458, 2011.

Y. Chen, A. Wiesel, Y. C. Eldar and A. O. Hero III, Shrinkage Algorithms for MMSE Covariance Estimation, IEEE Trans. on Signal Processing, Vol. 58, No. 10, pages 5016-5029, October 2010.

A. Wiesel, Y. C. Eldar and A. O. Hero III, Covariance estimation in decomposable Gaussian graphical models, IEEE Trans. on Signal Processing, Vol. 58, No. 3, pages 1482-1492, March 2010.

A. Wiesel and A. O. Hero III, Decomposable Principal Component Analysis, IEEE Transactions on Signal Processing, Vol. 57, No. 11, pages 4369-4377, Nov. 2009.

A. Wiesel, Y. C. Eldar and A. Yeredor, Linear regression with Gaussian model uncertainty: algorithms and bounds, IEEE Trans. on Signal Processing, Vol. 56, No. 6, pages 2194-2205, June 2008.

A. Wiesel, Y. C. Eldar and S. Shamai, Zero forcing precoding and generalized inverses, IEEE Trans. on Signal Processing, Vol. 56, No. 9, pages 4409-4418, Sept. 2008.

A. Wiesel, Y. C. Eldar and S. Shamai, Optimization of the MIMO compound capacity, IEEE Trans. on Wireless Communications, Vol. 6, No. 3, pages 1094-1101, March 2007.

A. Wiesel, Y. C. Eldar and A. Beck, Maximum likelihood estimation in linear models with a Gaussian model matrix, IEEE Signal Processing Letters, Vol. 13, No. 5, pages 292-295, May 2006.

A. Wiesel, Y. C. Eldar and S. Shamai, Linear precoding via conic optimization for fixed MIMO receivers, IEEE Trans. on Signal Proceesing, Vol. 54, No. 1, pages 161-176, Jan. 2006. Received the "2007 Young Author Best Paper Award".

Wiesel, Y. C. Eldar and S. Shamai, Semidefinite relaxation for detection of 16-QAM signaling in MIMO channels, IEEE Signal Processing Letters, Vol. 12, Issue 9, pages 653-656, Sept. 2005.

A. Wiesel, J. Goldberg and H. Messer, SNR Estimation in time-varying Fading Channels, IEEE Trans. on Communications, Vol. 54, Issue 5, pages 841-848, May 2006.

Other publications

T. Diskin, G. Draskovic, F. Pascal and A. Wiesel, Deep Robust Regression , Proc. of CAMSAP-2017.

N. Samuel, T. Diskin and A. Wiesel, Deep MIMO detection , Proc. of IEEE SPAWC-2017. (Student Paper Award).

E. Peker and A. Wiesel, Fitting generalized multivariate Huber losses , CMStatistics2016.

T. Zhang and A. Wiesel, Automatic diagonal loading for Tyler's robust covariance estimator , CMStatistics 2016.

E. Ollila, D. Tyler, I. Soloveychik and A. Wiesel, Simultaneous penalized M-estimation of covariance matrices using geodesically convex optimization , CMStatistics 2016.

Y. Woodbridge, G. Elidan and A. Wiesel, Quaternion structured Non-Paranormal Distributions, Proc. of Asilomar 2016.

T. Zhang and A. Wiesel, Automatic diagonal loading for Tyler's robust covariance estimator Proc. of SSP 2016.

J. Zhang, A. Wiesel and M.Haardt, A channel matching based hybrid analog-digital strategy for massive MIMO downlink systems, Proc. of SAM 2016.

Y. Tenzer, I. Soloveychik, A. Wiesel and G. Elidan, Generalized Ideal Parent (GIP): Discovering non-Gaussian Hidden Variables, Proc. of AISTATS 2016 (acceptance rate 165/537).

J. Zhang, A. Wiesel and M. Haardt, Low rank approximation based hybrid precoding schemes for multi-carrier single-user massive MIMO systems, Proc. of ICASSP 2016.

A. Koretz, A. Wiesel and Y. Eldar, Detection with phaseless measurements, Proc. of ICASSP 2016.

Y. Woodbridge, G. Elidan and A. Wiesel, Signal detection in para complex normal noise, Proc. of ICASSP 2016.

I. Soloveychik and A. Wiesel, Joint covariance estimation with mutual linear structure, Proc. of ICASSP-2015.

I. Soloveychik and A. Wiesel, Tyler's estimator performance analysis, Proc. of ICASSP-2015.

I. Soloveychik and A. Wiesel, Covariance estimation in Elliptical models with convex structure, Proc. of ICASSP-2014.

J. Vovnoboy and A. Wiesel, Compressed matched filter for non-Gaussian noise, Proc. of ICASSP-2014.

A. Sloin and A. Wiesel, Gaussian Graphical Models For Proper Quaternion Distributions, Proc. of CAMSAP-2013.

Z. Meng, D. Wei, A. Wiesel and A. O. Hero III, Marginal Likelihoods for Distributed Estimation of Graphical Model Parameters, Proc. of CAMSASP-2013.

T. Y. Liu, A. Wiesel, A. O. Hero III, A Sparse Multi-class Classifier for Biomarker Screening, Proc. of GlobalSIP 2013.

I. Soloveychik and A. Wiesel, Group symmetry and non-gaussian covariance estimation, Proc. of GlobalSIP 2013.

M. Greco, A. Wiesel, and F. Gini, ML estimate and CRLB of covariance matrix for complex elliptically symmetric distribution, Prof. of EUSIPCO-2013.

Z. Meng, D. Wei, A. Wiesel, and A. O. Hero III, Distributed learning of Gaussian graphical models via marginal likelihoods, Proc. of AISTATS 2013 (Notable Paper Award).

J. Vovnoboy, A. Wiesel, and Wing-Kin Ma, Robust semidefinite relaxation MIMO detection in a non-Gaussian channel, , Proc. of ICASSP-2013.

P. Yang, Z. Tan, A. Wiesel and A. Nehorai, Performance analysis and sensor placement for state estimation using PMUs with phase mismatch, , Prof. of PES-GM 2013.

P. Yang, Z. Tan, A. Wiesel and A. Nehorai, State estimation with consideration of PMU phase mismatch for smart grids, Proc. of ISGT 2013.

A. Wiesel, On the convexity in Kronecker structured covariance estimation, Proc. of SSP 2012.

A. Wiesel and A. Globerson, Covariance estimation in time varying ARMA processes, Proc. of SAM 2012.

C. Wei, A. Wiesel and R. S. Blum, Change detection in smart grids using errors in variables models, Proc. of SAM 2012.

C. Wei, A. Wiesel and R. S. Blum, Distributed change detection in Gaussian graphical models, , Proc. of CISS 2012.

A. Wiesel, Regularized covariance estimation in scaled Gaussian models, , Proc. of CAMSAP 2011.

Z. Meng, A. Wiesel and A. O. Hero III, Distributed principal component analysis on networks via directed graphical models, Proc. of ICASSP 2012.

A. T. Puig, A. Wiesel, R. R. Nadakuditi, and A. O. Hero III, Misaligned principal component analysis: application to gene expression in time seris analysis, Proc. of Asilomar 2011.

K. H. Liu, A. Wiesel, and D. C. Munson Jr., Maximum likelihood SAR autofocus with low return region, Proc. of ICASSP 2011.

Y. Chen, A. Wiesel and A. O. Hero III, Robust shrinkage estimation of high-dimensional covariance matrices, Proc. of SAM-2010.

A. T. Puig, A. Wiesel, A. Zass, G. Ginsburg, G. Fleury, and A. O. Hero III, Order-preserving factor discovery from misaligned data, Proc. of SAM-2010.

A. Wiesel and A. O. Hero III, Distributed covariance estimation in Gaussian graphical models, Proc. of SAM-2010.

K. H. Liu, A. Wiesel, and D. C. Munson Jr., Synthetic Aperture Radar Autofocus Via Semidefinite Relaxation, Proc. of ICASSP 2010, April 2010.

A. T. Puig, A. Wiesel and A. O. Hero III, A multidimensional shrinkage-thresholding operator, Proc. of SSP-2009, May 2009.

Y. Chen, A. Wiesel and A. O. Hero III, Shrinkage estimation of high dimensional covariance matrices, Proc. of ICASSP-2009, April 2009.

A. Wiesel and A. O. Hero III, Principal component analysis in decomposable graphical models, Proc. of ICASSP-2009, April 2009.

A. Khisti, G. Wornell, A. Wiesel and Y. Eldar, On the Gaussian MIMO Wiretap Channel, Proc. of ISIT-2007, June 2007.

I. Nevat, A. Wiesel, J. Yuan and Y. C. Eldar, Maximum a-posteriori estimation in linear models with a random Gaussian model matrix, Proc. of CISS-2007, March 2007.

A. Wiesel, Y. C. Eldar and S. Shamai, Optimal generalized inverses for zero forcing precoding, Proc. of CISS-2007, March 2007.

A. Wiesel, Y. C. Eldar and S. Shamai, Linear transmitter design for the MISO compound channel with interference, Proc. of EUSIPCO-2006, Sept. 2006.

D. Wajcer, S. Shamai (Shitz) and A. Wiesel, On superposition coding and beamforming for the multi-antenna Gaussian broadcast channel, Proc. of ITA-2006, UCSD, Feb. 2006.

M. Payaro, A. Wiesel, J. Yuan and M. A. Lagunas, On the capacity of linear vector Gaussian channels with magnitude knowledge and phase uncertainty, Proc. of ICASSP-2006, May 2006.

A. Wiesel, Y. C. Eldar and S. Shamai, Robust power allocation for maximizing the compound capacity, Proc. of NEWCOM-ACORN-2006, Vienna, Sept. 2006.

A. Wiesel and Y. C. Eldar, Maximum likelihood estimation in random linear models: general- izations and performance analysis, Proc. of ICASSP-2006, May 2006.

A. Wiesel, Y. C. Eldar and S. Shamai, Beamforming maximizes the compound capacity in rank one Ricean MIMO channels, Proc. of IEEE SPAWC-2005, June 2005, (Student Paper Award).

A. Wiesel, Y. C. Eldar and S. Shamai, Semidefinite relaxation for detection of 16-QAM signaling in MIMO channels, Proc. of CISS-2005, March 2005.

A. Wiesel, Y. C. Eldar and S. Shamai, Beamforming maximizes the compound capacity in MISO channels, Proc. of IEEE/ITG WSA-2005, April 2005.

M. Salhov, A. Wiesel and Y. C. Eldar, A robust maximum likelihood multiuser detector in the presence of signature uncertainties, Proc. of EUSIPCO-2004, Sept. 2004.

M. Salhov, A. Wiesel and Y. C. Eldar, Robust peak distortion equalization, Proc. of IEEE ICASSP-2004, May 2004.

A. Wiesel, Y. C. Eldar and S. Shamai, Linear MIMO precoders for fixed receivers, Proc. of IEEE ICASSP-2004, May 2004.

A. Wiesel, Y. C. Eldar and S. Shamai, Multiuser precoders for fixed receivers, Proc. of IEEE IZS-2004, Feb. 2004.

A. Wiesel, X. Mestre, A. Pages and J. R. Fonollosa, Turbo demodulation and decoding of multiuser linear dispersion space time codes, Proc. of IST Summit 2003, June 2003.

A. Wiesel, X. Mestre, A. Pages and J. R. Fonollosa, Efficient implementation of sphere demodulation, Proc. of SPAWC-2003, June 2003.

A. Wiesel, X. Mestre, A. Pages and J. R. Fonollosa, Turbo equalization and demodulation of multiuser space time codes, Proc. of IEEE ICC-2003, May 2003.

A. Wiesel, J. Goldberg and H. Messer, Non data aided signal to noise ratio estimation, Proc. of IEEE ICC-2002, April 2002.

A. Wiesel, J. Goldberg and H. Messer, Data aided signal to noise ratio estimation in time-selective fading channels, Proc. of IEEE ICASSP-2002, May 2002.

A. Wiesel, M. Kliger and A. O. Hero III, A greedy approach to sparse canonical correlation analysis, available in arXiv:0801.2748v1.

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.