G. Carayannis, N. Kalouptsidis and D. Manolakis,

*"Efficient algorithm for determination of a.r. part of a.r.m.a model"*, Electronic Letters, August 1980, vol.16, pp. 656-657.G. Carayannis, N. Kalouptsidis and D. Manolakis,

*"Fast recursive algorithms for a class of linear equations"*, IEEE Trans. on ASSP, vol. 20, April 1982, pp. 227-239.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"On block matrices with elements of special structure"*, Proc. IEEE Int. Conf. on ASSP, Paris, 1982.D. Manolakis, N. Kalouptsidis and G. Carayannis,

*"Efficient determination of FIR Wiener filters with linear phase"*, Electronic Letters, vol. 18, May 1982, pp. 429-431.N. Kalouptsidis, D. Manolakis and G. Carayannis,

*"A family of computationally efficient algorithms for multichannel signal processing"*, Signal Processing, vol. 5, No. 1, 1983, pp. 1-19.D. Manolakis, N. Kalouptsidis and G. Carayannis,

*"Fast algorithms for discrete time Wiener Filters with optimum lag"*, IEEE Trans. on ASSP vol. 21, Febr. 1983, pp. 168-179.G. Carayannis, D. Manolakis and N. Kalouptsidis,

*"A fast sequential algorithm for least squares filtering and prediction"*, IEEE Trans. on ASSP vol. 31, Dec. 1983, pp. 1394-1402.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"Fast design of multi - channel FIR least squares filters with optimum lag"*, IEEE Trans. on ASSP, Febr. 1984, pp.48-59.N. Kalouptsidis, D. Manolakis and G. Carayannis,

*"Efficient recursive triangularization, inversion and system solution of near-to-Toeplitz matrices and applications in signal processing"*, Signal Processing, May, 1984, pp. 235-259.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"Fast algorithms for block Toeplitz matrices with Toeplitz entries"*, Signal Processing, Jan. 1984, pp. 77-81.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"Fast design of direct and ladder Wiener filters with linear phase"*, IEEE Trans. on Circuits and Systems, vol. 31, Nov. 1984, pp. 974-978.N. Kalouptsidis, G. Carayannis, D. Manolakis and E.Koukoutsis,

*"Efficient recursive in order least squares FIR filtering and prediction"*, IEEE Trans. on ASSP, vol. 33, October 1985, pp. 1175-1187.N. Kalouptsidis and G. Koyas,

*"Efficient block design of FIR least squares filters with linear phase"*, IEEE Trans. on ASSP, Dec.1985 pp. 1435-1445.G. Carayannis, N. Kalouptsidis and D. Manolakis,

*"A unified view of parametric processing algorithms for prewindowed signals"*, Signal Processing, vol. 10, 1986, pp. 335-368. INVITED PAPER.N. Kalouptsidis and S. Theodoridis,

*"Fast adaptive least squares algorithms for power spectral estimation"*, IEEE Trans. on ASSP, vol. 35 May 1987, pp. 661-670.S. Theodoridis and N. Kalouptsidis,

*"A fast algorithm for block LS design of FIR filters with linear phase and optimum lag"*, IEEE Trans. on ASSP, vol. 35, No. 7, July 1987, pp. 1079-1082.N. Kalouptsidis,

*"Efficient tranversal and lattice algorithms for linear phase multichannel filtering"*, Invited paper, IEEE Trans. on CAS, vol. 34, No. 7, July 1987, pp. 804-813.N. Kalouptsidis,

*"Efficient computation of multichannel Wiener filters with linear phase"*, IEEE Trans. on CAS, vol. 35, No. 4, pp. 433-439.N. Kalouptsidis and S. Theodoridis,

*"Parallel implementation of efficient LS algorithms for filtering and prediction"*, IEEE Trans. on ASSP, Nov. 1987, pp. 1465-1469.S. Theodoridis and N. Kalouptsidis,

*"Parallel algorithms for MS error estimation of 2-D non causal image models"*, J. of Microprogramming and Microprocessing, vol. 14, 1987.N. Kalouptsidis and S. Theodoridis,

*"Fast sequential algorithms for LS FIR filters with linear phase"*, IEEE Trans. on CAS, vol. 2, 1988.N. Kalouptsidis and S. Theodoridis,

*"Efficient structurally symmetric algorithms for least squares FIR filters with linear phase"*, IEEE Trans. on ASSP, vol. 36, no. 9, pp. 1454-1465, Sept. 1988.S. Theodoridis and N. Kalouptsidis, J. Proakis and G. Koyas,

*"Interference rejection in PN spread spectrum systems with LS FIR filters with linear phase"*, IEEE Trans. on Communications, vol. 37, No. 9, pp. 991-994, 1989.N. Kalouptsidis and S. Theodoridis,

*"Concurrent algorithms for a class of 1-D and 2-D Wiener FIR filters with symmetrical impulse response"*, IEEE Trans. on ASSP, Nov. 1989, pp.1780-1783.S. Karaboyas, N. Kalouptsidis and C. Caroubalos,

*"An efficient method for multipath channel equalization"*, Signal Processing 17 (1989), pp. 321-341.S. Karaboyas, N.Kalouptsidis and C. Caroubalos,

*"Highly parallel transversal batch and block adaptive multichannel LS algorithms and application to decision feedback equalizers"*, IEEE Trans. on ASSP, Sept. 1989, pp. 1380-1396.S. Theodoridis, K. Berberidis and N. Kalouptsidis,

*"A new adaptive covariance symmetric algorithm and a fast initialization scheme for least squares FIR filters with symmetric impulse response"*, Signal Processing, vol. 18, pp. 153-167. 1989.S. Theodoridis, N. Kalouptsidis and D. Bakirtzis,

*"Pipelined algorithms for LS FIR filters with symmetric impulse response"*, IEEE Trans., vol. ASSP-38, pp. 260-271, Feb. 1990.S. Theodoridis, N. Kalouptsidis and D. Bakirtzis,

*"Highly concurrent algorithms for LS FIR filters with linear and affine phase response"*, IEEE Trans. on ASSP, Feb. 1990, pp. 260-271.S. Karaboyas, N. Kalouptsidis and C. Caroubalos,

*"Efficient ARX identification algorithms with full parallelism"*, IEEE Trans. on ASSP, vol. 38, no. 11, pp. 1902-1913, Nov. 1990.S. Karaboyas and N. Kalouptsidis,

*"Efficient adaptive algorithms for ARMA identification"*, IEEE Transactions on Signal Processing, vol. 39, no.3, pp. 1-15, Mar. 1991.G. O. Glentis and N. Kalouptsidis,

*"Efficient order recursive algorithms or multichannel LS filtering"*, IEEE Trans. on Signal Processing, vol. 40, no. 6, pp. 1354-1375, Jun. 1992.G. O. Glentis and N. Kalouptsidis,

*"Fast adaptive algorithms for multichannel filtering and system identification"*, IEEE Trans. on Signal Processing, vol. 40, no. 10, pp. 2433-2459, Oct. 1992.G. Glentis and N. Kalouptsidis,

*"Efficient adaptive algorithms for multichannel LS FIR filtering using a channel decomposition technique"*, Computer and Electrical Engineering, vol. 18, no. 3/4, pp. 315-329, 1992.G. Glentis and N. Kalouptsidis,

*"Finite-precision analysis of a covariance algorithm for LS FIR filtering and AR modeling"*, IEEE Trans. on Signal Processing, pp. 2990-3002, Oct. 1993.G. Glentis and N. Kalouptsidis,

*"Efficient algorithms for the solution of block linear systems with Toeplitz entries"*, Linear Algebra and its Applications, 179: pp. 85-104, 1993.G. Glentis and N. Kalouptsidis,

*"Solution of block linear systems of Toeplitz equations using a channel decomposition technique"*, Signal Processing, vol 37, no 1, pp. 15-60, May 1994.G. Glentis and N. Kalouptsidis,

*"Efficient multichannel FIR filtering using a single channel versatile order recursive algorithm"*, Signal Processing, vol. 37, no 3, pp. 437-462, June 1994.G. Glentis and N. Kalouptsidis,

*"A highly modular adaptive lattice algorithm for multichannel least squares filtering"*, IEEE Trans. on Signal Processing, vol. 46, no. 1, pp. 47-55, 1995.E. Kofidis, S. Theodoridis and N. Kalouptsidis,

*"On the perfect reconstruction problem in N-band multirate maximally decimated FIR filter banks"*, IEEE Trans. on Signal Processing, pp. 2439-2455, Oct. 1996.I. Bouras, G. Glentis and N. Kalouptsidis,

*"Efficient VLSI structures for block Toeplitz and Toeplitz like systems"*, Signal Processing, vol. 50, 1996.I. Bouras, G. Glentis and N. Kalouptsidis,

*"Architectures for block Toeplitz systems"*, Signal Processing, vol. 51, pp. 167-190, 1996.M. Papadakis, T. Stavropoulos and N. Kalouptsidis,

*"An equivalence relation between multiresolution analysis of L2(R)"*, Applied Harmonic Analysis, 1996.E. Kofidis, S. Theodoridis and N. Kalouptsidis,

*"Mirror-image symmetric perfect reconstruction FIR filter banks: Parametrization and design"*, Signal Processing, vol. 68, pp. 1-21, 1998.B. Babadi, N. Kalouptsidis and V. Tarokh,

*"Asymptotic Achievability of the Cramer�Rao Bound for Noisy Compressive Sampling"*, IEEE Transactions on Signal Processing, Vol. 57, No. 3, 2009.G. Mileounis, B.Babadi, N. Kalouptsidis, and V. Tarokh,

*"An Adaptive Greedy Algorithm with Application to Nonlinear Communications"**, IEEE Trans. on Signal Processing, vol. 58, No. 6, pp. 2998-3007, Jun. 2010.**B. Babadi, N. Kalouptsidis, and V. Tarokh,*.*"SPARLS: The Sparse RLS Algorithm"*, IEEE Trans. on Signal Processing, Vol. 58, No. 8, Aug. 2010N. Kalouptsidis, G. Mileounis, B. Babadi, and V. Tarokh,

*"Adaptive algorithms for sparse system identification", Signal Processing (Elsevier), vol. 91, no. 8, pp. 1910–1919, Aug. 2011.*.G. Mileounis, and N. Kalouptsidis,

*"A Sparsity Driven Approach to Cumulant Based Identification and order determination,"*Signal Processing (Elsevier), accepted subject to revisions.

G. Carayannis, N. Kalouptsidis and D. Manolakis,

*"Classes of matrices leading to fast algorithms for signal processing"*, Proc. Of the 14th Conf. of Information Sciences and Systems, Princeton, 1980.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"Two alternative schemes for the solution of the autocorrelation equations in the A.R.M.A case"*, Proc. 14th Conf. on Information Sciences and Systems, Princeton, 1980.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"Fast inversion vector generated matrices for signal processing"*, Signal Processing I: Theories and Applications, North Holland, Eurasip, 1980.N. Kalouptsidis, C. Caroubalos and D. Manolakis,

*"Efficient transmission of a set of signals over fewer channels by linear transformation and time shifting"*, Proc. 18th Allerton Conf., Allerton, 1980.N. Kalouptsidis, D. Manolakis and G. Carayannis, "Fast algorithms for block Toeplitz systems", Prc. 6th IFAC Symp. on Identification and System Parameter estimation, Washington, 1982.

D. Manolakis, N. Kalouptsidis and G. Carayannis,

*"Fast algorithms for optimum lag multichannel Wiener filters"*, Proc. IEEE Int. Symp. on Circuits and Systems, Rome, 1982.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"Systems of equations with near-to-Toeplitz or near-to-Hankel parameters and applications to signal processing"*, Proc. IEEE Int. Conf. on ASSP, Boston, 1983.G. Carayannis, D. Manolakis and N. Kalouptsidis,

*"Fast Kalman type algorithms for sequential signal processing"*, Proc. IEEE Int. Conf. on ASSP, Boston,1983.N. Kalouptsidis, D. Manolakis and G. Carayannis,

*"Efficient triangularization inversion and system solution of near-to-Toeplitz matrices"*, Proc. IEEE Int. Symp. on Circuits and Systems, California, 1983.N. Kalouptsidis, D. Manolakis and G. Carayannis,

*"Fast FIR least squares filtering"*, Proc. Int. Mediterranean Electrotechnical Conf., Athens, 1983.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"Fast sequential algorithms for the instrumental variables method"*, Signal Processing II: Theories and Applications, North Holland, 1983.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"A ladder Wiener filter with linear phase"*, Proc. HELTECON, Athens, 1983.G. Carayannis, N. Kalouptsidis and D. Manolakis,

*"New efficient order recursive algorithms for prewindowed signals"*, Proc. Int. Symp. on MECO, Athens, 1983.D. Manolakis, G. Carayannis, N. Kalouptsidis and C. Halkias,

*"Fast design of waveshaping filters for seismic signal deconvolution"*, Proc. Neuvieme Colloque sur le traitment du signal et ses applications, Nice, 1983.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"Fast algorithms for direct and ladder Wiener filters with linear phase"*, Proc. 18th Conf. on Inf. Sciences and Systems, Princeton, 1984.D. Manolakis, G. Carayannis and N. Kalouptsidis,

*"On the computational organization of fast sequential algorithms"*, Proc. IEEE Int. Conf. on ASSP, San Diego, 1984.G. Carayannis, D. Manolakis and N. Kalouptsidis,

*"Efficient algorithms and structures for lagged least squares FIR filters in the case of prewindowed signals"*, Proc. IEEE Int. Conf. on ASSP, San Diego, 1984.N. Kalouptsidis and G. Koyas,

*"Fast algorithms for linear phase filters"*, Proc. Int. Conf. on Inform. Sci., J. Hopkins, 1985.S. Theodoridis, N. Kalouptsidis and J. Proakis,

*"LS FIR smoothers and application to interference rejection in PN spread spectrum systems"*, Proc., IEEE Conf. on ASSP, Dallas, 1987.S. Theodoridis and N. Kalouptsidis,

*"Highly parallel algorithms for LS FIR smoothing and MEM spectral analysis"*, Proc. IEEE Int. Conf. on ASSP, New York, 1988.S. Karaboyas, N. Kalouptsidis and C. Caroubalos,

*"New concurrent transversal batch and adaptive algorithms for multichannel filters"*, Proc. IEEE Int. Symp. on Circuits and Systems, Helsinki, 1988.S. Theodoridis, D. Bakirtzis and N. Kalouptsidis,

*"Parallel algorithms for the solution of near-to-Toeplitz systems"*, Proc. Int. Conf., EUSIPCO, Grenoble, 1988.S. Theodoridis, C. Berberidis and N. Kalouptsidis,

*"Adaptive covariance type internally symmetric algorithms for LS FIR filters with linear phase"*, Proc. IEEE Int. Symp. on Circuits and Systems, Helsinki, 1988.S. Theodoridis and N. Kalouptsidis,

*"Highly parallel block algorithms for LS FIR filtering"*, Proc. IEEE Int. Symp. on Circuits and Systems, Helsinki, 1988.G. Glentis and N. Kalouptsidis,

*"Fast adaptive algorithms for multichannel filtering and system identification"*, presented in IEEE International Conference CAS-90, New Orleans, USA.G. Glentis and N. Kalouptsidis,

*"Efficient order recursive algorithms for multichannel LS filtering"*, presented in IEEE International Conference ASSP-90, Albuquerque, New Mexico, USA.G. Glentis and N. Kalouptsidis,

*"Fast adaptive algorithms for multichannel linear phase LS filtering"*, Signal Processing V: Theory and Applications, 1990.G. Glentis and N. Kalouptsidis,

*"Efficient adaptive LS algorithms for multichannel Two-Dimensional Filtering and System Identification"*, presented in ICASSP-91, Torondo, Canada.G. Glentis and N. Kalouptsidis,

*"Finite-precision analysis of a covariance algorithm for LS FIR filtering and AR modeling"*, presented in IFAC/IFORS 1991.I. Bouras, G. Glentis and N. Kalouptsidis,

*"Efficient implementation of block toeplitz solvers in VLSI array processors"*, IMAS/PDCOM Corfu, Greece, 1991.G. Glentis and N. Kalouptsidis,

*"Efficient Multichannel FIR Filtering using a Step Vtile Order Recursive Algorithm"*, 10th IFAC Symposium on System Identification, SYSID'94, Jul. 94, Copenhagen.G. Glentis and N. Kalouptsidis,

*"Efficient Algorithms for Instrumental Variable System Identification"*, EUSIPCO'94, September 1994, Edinbourgh, pp. 1831-1834.E. Kofidis, S. Theodoridis and N. Kalouptsidis,

*"On perfect reconstruction FIR filter banks"*, EUSIPCO-96, Trieste, Sep. 1996.D. Linardatos, S. Gatzonis, N. Kalouptsidis, V. Mantouvalos, A. Siafakas, C .Papageorgiou,

*"Calculation of the spectrum of Lyapunov exponents in EEG"*, Epilepsia, vol.37, supplement 4, pp. 154, 1996, presented in the 2nd European Conference of Epileptology, the Hague, the Netherlands, September 1996.E. Kofidis, S. Theododiris and N. Kalouptsidis,

*"Perfect reconstruction FIR filter banks with mirror-image symmetry"*, IEEE Conf. on Elect. Circuits and Systems, Rhodes, Greece, Oct. 1996.E. Kofidis, S. Theodoridis and N. Kalouptsidis,

*"Designing FIR perfect reconstruction systems given several of the analysis and synthesis filters"*, 13th Int. Conference on Digital Signal Processing, Santorini, 1997.B. Babadi, N. Kalouptsidis, and V. Tarokh,

*"Comparison of the spaRLS and RLS algorithms for adaptive filtering"*, in IEEE Proc. Sarnoff Symposium, 2009.N. Kalouptsidis, G. Mileounis, B. Babadi, and V. Tarokh,

*"Adaptive algorithms for sparse nonlinear channel estimation"**, in Proc. IEEE SSP Workshop, pp. 221-224, Sept. 2009.*G. Mileounis, B. Babadi, N. Kalouptsidis, and V. Tarokh,

*"An adaptive greedy algorithm with application to sparse NARMA identification"**, in Proc. IEEE ICASSP Conference, Mar. 2010.*G. Mileounis, N. Kalouptsidis, B. Babadi, and V. Tarokh,

*"Blind Identification of Sparse Channels and Symbol Detection via the EM Algorithm"**, in Proc. IEEE DSP 11, Special Session on Sparsity-aware Signal Processing.*G. Mileounis, and N. Kalouptsidis,

*"A Sparsity Driven Approach to Cumulant Based Identification,"*in Proc. IEEE SPAWC 2012, Turkey.