On block matrices with elements of special structure. - Nicholas Kalouptsidis; George Carayannis; Dimitris Manolakis 001 (ICASSP, 1982)

Stability Analysis of the Orbits of Control Systems. - Nicholas Kalouptsidis; David L. Elliott (Math. Syst. Theory, 1982)

Fast Kalman type algorithms for sequential signal processing. - George Carayannis; Dimitris Manolakis 001; Nicholas Kalouptsidis (ICASSP, 1983)

Systems of equations with near-to-Toeplitz or near-to-Hankel parameters and applications to signal processing. - Nicholas Kalouptsidis; George Carayannis; Dimitris Manolakis 001 (ICASSP, 1983)

Prolongations and Lyapunov Functions in Control Systems. - Nicholas Kalouptsidis (Math. Syst. Theory, 1983)

Efficient algorithms and structures for lagged least squares (LS) FIR filters in the case of prewindowed signals. - George Carayannis; Dimitris Manolakis 001; Nicholas Kalouptsidis (ICASSP, 1984)

On the computational organization of fast sequential algorithms. - Dimitris Manolakis 001; George Carayannis; Nicholas Kalouptsidis (ICASSP, 1984)

Efficient recursive in order least squares FIR filtering and prediction. - Nicholas Kalouptsidis; George Carayannis; Dimitris Manolakis 001; Elias Koukoutsis (IEEE Trans. Acoust. Speech Signal Process., 1985)

Efficient block LS design of FIR filters with linear phase. - Nicholas Kalouptsidis; George D. Koyas (IEEE Trans. Acoust. Speech Signal Process., 1985)

LS FIR Smoothers and application to interference rejection in PN spread spectrum systems. - Sergios Theodoridis; Nicholas Kalouptsidis; John G. Proakis (ICASSP, 1987)

Parallel algorithm for MSE estimation of 2-D noncasual image models. - Sergios Theodoridis; Nicholas Kalouptsidis (Microprocess. Microprogramming, 1987)

Prolongations and Stability Analysis via Lyapunov Functions of Dynamical Polysystems. - J. Tsinias; Nicholas Kalouptsidis (Math. Syst. Theory, 1987)

Lyapunov Functions and Stability of Dynamical Polysystems. - J. Tsinias; Nicholas Kalouptsidis; Andrea Bacciotti (Math. Syst. Theory, 1987)

Fast adaptive least squares algorithms for power spectral estimation. - Nicholas Kalouptsidis; Sergios Theodoridis (IEEE Trans. Acoust. Speech Signal Process., 1987)

Parallel implementation of efficient LS algorithms for filtering and prediction. - Nicholas Kalouptsidis; Sergios Theodoridis (IEEE Trans. Acoust. Speech Signal Process., 1987)

A fast algorithm for block LS design of FIR filters with linear phase and optimum lag. - Sergios Theodoridis; Nicholas Kalouptsidis (IEEE Trans. Acoust. Speech Signal Process., 1987)

Highly parallel algorithms for LS FIR smoothing and MEM spectral analysis. - Sergios Theodoridis; Nicholas Kalouptsidis; Dimitri Bakirtzis (ICASSP, 1988)

Efficient structurally symmetric algorithms for least squares FIR filters with linear phase. - Nicholas Kalouptsidis; Sergios Theodoridis (IEEE Trans. Acoust. Speech Signal Process., 1988)

Efficient adaptive transversal algorithms for least squares ARMA identification. - Serafim Karaboyas; Nicholas Kalouptsidis (ICASSP, 1989)

Interference rejection in PN spread-spectrum systems with LS linear phase FIR filters. - Sergios Theodoridis; Nicholas Kalouptsidis; John G. Proakis; George D. Koyas (IEEE Trans. Commun., 1989)

Concurrent algorithms for a class of 1-D and 2-D Wiener FIR filters with symmetrical impulse response. - Nicholas Kalouptsidis; Sergios Theodoridis (IEEE Trans. Acoust. Speech Signal Process., 1989)

Highly parallel multichannel LS algorithms and application to decision-feedback equalizers. - Serafim Karaboyas; Nicholas Kalouptsidis; Costas Caroubalos (IEEE Trans. Acoust. Speech Signal Process., 1989)

Efficient order recursive algorithms for multichannel LS filtering. - George-Othon Glentis; Nicholas Kalouptsidis (ICASSP, 1990)

Efficient ARX identification algorithms with full parallelism. - Serafim Karaboyas; Nicholas Kalouptsidis; Costas Caroubalos (IEEE Trans. Acoust. Speech Signal Process., 1990)

Pipelined algorithm for LS FIR filters with symmetric impulse response. - Sergios Theodoridis; Nicholas Kalouptsidis; Dimitri Bakirtzis (IEEE Trans. Acoust. Speech Signal Process., 1990)

Efficient adaptive algorithms for ARX identification. - Serafim Karaboyas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1991)

Efficient order recursive algorithms for multichannel least squares filtering. - George-Othon Glentis; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1992)

Fast adaptive algorithms for multichannel filtering and system identification. - George-Othon Glentis; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1992)

Finite-precision analysis of a covariance algorithm for least squares FIR filtering and AR modeling. - George-Othon Glentis; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1993)

Efficient solution of block linear systems with Toeplitz entries using a channel decomposition technique. - George-Othon Glentis; Nicholas Kalouptsidis (Signal Process., 1994)

Efficient multichannel FIR filtering using a single step versatile order recursive algorithm. - George-Othon Glentis; Nicholas Kalouptsidis (Signal Process., 1994)

A correction note on "Output feedback stabilization". - John Tsinias; Nicholas Kalouptsidis (IEEE Trans. Autom. Control., 1994)

Qualitative analysis of the parallel and asynchronous modes of the Hamming network. - Konstantinos Koutroumbas; Nicholas Kalouptsidis (IEEE Trans. Neural Networks, 1994)

A highly modular adaptive lattice algorithm for multichannel least squares filtering. - George-Othon Glentis; Nicholas Kalouptsidis (Signal Process., 1995)

Nonlinear system identification using Gaussian inputs. - Panos Koukoulas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1995)

On perfect-reconstruction FIR filter banks. - Eleftherios Kofidis; Sergios Theodoridis; Nicholas Kalouptsidis (EUSIPCO, 1996)

On blind identification of quadratic systems. - Panos Koukoulas; Nicholas Kalouptsidis (EUSIPCO, 1996)

Perfect-reconstruction FIR filter banks with mirror-image symmetry. - Eleftherios Kofidis; Sergios Theodoridis; Nicholas Kalouptsidis (ICECS, 1996)

Architectures for block Toeplitz systems. - Ilias Bouras; George-Othon Glentis; Nicholas Kalouptsidis (Signal Process., 1996)

On the perfect reconstruction problem in N-band multirate maximally decimated FIR filter banks. - Eleftherios Kofidis; Sergios Theodoridis; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1996)

Third order Volterra system identification. - Panos Koukoulas; Nicholas Kalouptsidis (ICASSP, 1997)

An efficient order recursive algorithm for Volterra system identification. - George-Othon Glentis; Nicholas Kalouptsidis (EUSIPCO, 1998)

Divide and conquer algorithms for constructing neural networks architectures. - Konstantinos Koutroumbas; Abraham Pouliakis; Nicholas Kalouptsidis (EUSIPCO, 1998)

Neural network architectures for selecting the maximum input. - Konstantinos Koutroumbas; Nicholas Kalouptsidis (Int. J. Comput. Math., 1998)

Mirror-image symmetric perfect-reconstruction FIR filter banks: Parametrization and design. - Eleftherios Kofidis; Sergios Theodoridis; Nicholas Kalouptsidis (Signal Process., 1998)

Efficient algorithms for Volterra system identification. - George-Othon Glentis; Panos Koukoulas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 1999)

Second-order Volterra system identification. - Panos Koukoulas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 2000)

First-Order Optimal Approximation of Binary Sequences. - Nicholas Kolokotronis; Panagiotis Rizomiliotis; Nicholas Kalouptsidis (SETA, 2001)

Identification of input-output bilinear systems using cumulants. - V. Tsoulkas; Panos Koukoulas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 2001)

Identification of discrete-time state affine state space models using cumulants. - George Gatt; Nicholas Kalouptsidis (Autom., 2002)

A cumulant based algorithm for the identification of input-output quadratic systems. - Panos Koukoulas; V. Tsoulkas; Nicholas Kalouptsidis (Autom., 2002)

Marginal value-based pricing of additional spectrum assigned to cellular telephony operators. - R. Sweet; I. Viehoff; D. Linardatos; Nicholas Kalouptsidis (Inf. Econ. Policy, 2002)

Synthesis of minimal cost nonlinear feedback shift registers. - D. Linardatos; Nicholas Kalouptsidis (Signal Process., 2002)

Adaptive digital filters [Book Review]. - Athanasios A. Rontogiannis; Nicholas Kalouptsidis (IEEE Trans. Autom. Control., 2002)

Minimum linear span approximation of binary sequences. - Nicholas Kolokotronis; Panagiotis Rizomiliotis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2002)

Blind identification of second order Hammerstein series. - Panos Koukoulas; Nicholas Kalouptsidis (Signal Process., 2003)

On the linear complexity of nonlinearly filtered PN-sequences. - Nicholas Kolokotronis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2003)

Blind identification of bilinear systems. - Nicholas Kalouptsidis; Panos Koukoulas; V. John Mathews (IEEE Trans. Signal Process., 2003)

On the generation of sequences simulating higher order white noise for system identification. - Nicholas Kolokotronis; George Gatt; Nicholas Kalouptsidis (Signal Process., 2004)

Generalized hamming networks and applications. - Konstantinos Koutroumbas; Nicholas Kalouptsidis (Neural Networks, 2005)

Results on the nonlinear span of binary sequences. - Panagiotis Rizomiliotis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2005)

On the quadratic span of binary sequences. - Panagiotis Rizomiliotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2005)

Blind identification of Volterra-Hammerstein systems. - Nicholas Kalouptsidis; Panos Koukoulas (IEEE Trans. Signal Process., 2005)

Symbolic Computations in Volterra System Identification. - Kimon Kontosis; Panagiotis Angelikopoulos; Panos Koukoulas; Nicholas Kalouptsidis; Ioannis Z. Emiris (ICASSP (3), 2006)

New Results on the Linear Complexity of Binary Sequences. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (ISIT, 2006)

Lower Bounds on Sequence Complexity Via Generalised Vandermonde Determinants. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (SETA, 2006)

Nonlinear Complexity of Binary Sequences and Connections with Lempel-Ziv Compression. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (SETA, 2006)

Subspace projection based blind channel order estimation of MIMO systems. - Diamantis Kotoulas; Panos Koukoulas; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 2006)

Improved Bounds on the Linear Complexity of Keystreams Obtained by Filter Generators. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (Inscrypt, 2007)

Subspace based blind identification and equalization of linear FIR MIMO systems and FIR SIMO volterra systems. - Diamantis Kotoulas; Panos Koukoulas; Nicholas Kalouptsidis (EUSIPCO, 2007)

Efficient Computation of the Best Quadratic Approximations of Cubic Boolean Functions. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (IMACC, 2007)

Best Affine Approximations of Boolean Functions and Applications to Low Order Approximations. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (ISIT, 2007)

Classification methods for random utility models with i.i.d. disturbances under the most probable alternative rule. - Nicholas Kalouptsidis; Konstantinos Koutroumbas; V. Psaraki (Eur. J. Oper. Res., 2007)

Best Quadratic Approximations of Cubic Boolean Functions. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (IACR Cryptol. ePrint Arch., 2007)

On the Nonlinear Complexity and Lempel-Ziv Complexity of Finite Length Sequences. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2007)

On the error linear complexity profiles of binary sequences of period 2n. - Tuvi Etzion; Nicholas Kalouptsidis; Nicholas Kolokotronis; Konstantinos Limniotis; Kenneth G. Paterson (ISIT, 2008)

On the Linear Complexity of Sequences Obtained by State Space Generators. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2008)

New Constructions of Low-Complexity Convolutional Codes. - Alexandros Katsiotis; Panagiotis Rizomiliotis; Nicholas Kalouptsidis (ICC, 2009)

On the random coding exponent of nonlinear gaussian channels. - Kostis Xenoulis; Nicholas Kalouptsidis (ITW, 2009)

Factorization of determinants over finite fields and application in stream ciphers. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (Cryptogr. Commun., 2009)

SPARLS: A Low Complexity Recursive $ mathcal{L}_1$-Regularized Least Squares Algorithm - Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (CoRR, 2009)

Input-output identification of nonlinear channels using PSK, QAM and OFDM inputs. - Gerasimos Mileounis; Panos Koukoulas; Nicholas Kalouptsidis (Signal Process., 2009)

Blind identification of Hammerstein channels using QAM, PSK, and OFDM inputs. - Gerasimos Mileounis; Nicholas Kalouptsidis; Panos Koukoulas (IEEE Trans. Commun., 2009)

Properties of the error linear complexity spectrum. - Tuvi Etzion; Nicholas Kalouptsidis; Nicholas Kolokotronis; Konstantinos Limniotis; Kenneth G. Paterson (IEEE Trans. Inf. Theory, 2009)

Best affine and quadratic approximations of particular classes of Boolean functions. - Nicholas Kolokotronis; Konstantinos Limniotis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2009)

Improvement of Gallager upper bound and its variations for discrete channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2009)

Asymptotic Achievability of the CramÉr-Rao Bound for Noisy Compressive Sampling. - Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (IEEE Trans. Signal Process., 2009)

Blind identification of second order volterra systemswith complex random inputs using higher order cumulants. - Gerasimos Mileounis; Nicholas Kalouptsidis (IEEE Trans. Signal Process., 2009)

An Adaptive Greedy Algorithm with Application to Sparse Narma Identification. - Gerasimos Mileounis; Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (ICASSP, 2010)

Approximations of choice probabilities in mixed logit models. - Nicholas Kalouptsidis; V. Psaraki (Eur. J. Oper. Res., 2010)

New Constructions of High-Performance Low-Complexity Convolutional Codes. - Alexandros Katsiotis; Panagiotis Rizomiliotis; Nicholas Kalouptsidis (IEEE Trans. Commun., 2010)

SPARLS: the sparse RLS algorithm. - Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (IEEE Trans. Signal Process., 2010)

An adaptive greedy algorithm with application to nonlinear communications. - Gerasimos Mileounis; Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (IEEE Trans. Signal Process., 2010)

Blind identification of sparse channels and symbol detection via the EM algorithm. - Gerasimos Mileounis; Nicholas Kalouptsidis; Behtash Babadi; Vahid Tarokh (DSP, 2011)

Fast decoding of regular LDPC codes using greedy approximation algorithms. - Nicholas Kalouptsidis; Nicholas Kolokotronis (ISIT, 2011)

Constructing Boolean functions in odd number of variables with maximum algebraic immunity. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (ISIT, 2011)

Adaptive algorithms for sparse system identification. - Nicholas Kalouptsidis; Gerasimos Mileounis; Behtash Babadi; Vahid Tarokh (Signal Process., 2011)

On (n, n-1) Punctured Convolutional Codes and Their Trellis Modules. - Alexandros Katsiotis; Nicholas Kalouptsidis (IEEE Trans. Commun., 2011)

Achievable Rates for Nonlinear Volterra Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2011)

Tight Performance Bounds for Permutation Invariant Binary Linear Block Codes Over Symmetric Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2011)

New achievable rates for nonlinear Volterra channels via martingale inequalities. - Kostis Xenoulis; Nicholas Kalouptsidis; Igal Sason (ISIT, 2012)

Recursive flexible convolutional encoders for parallel concatenation. - Alexandros Katsiotis; Nicholas Kalouptsidis; Panagiotis Rizomiliotis (ISTC, 2012)

A sparsity driven approach to cumulant based identification. - Gerasimos Mileounis; Nicholas Kalouptsidis (SPAWC, 2012)

Modifying Boolean Functions to Ensure Maximum Algebraic Immunity. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (IACR Cryptol. ePrint Arch., 2012)

Flexible Convolutional Codes: Variable Rate and Complexity. - Alexandros Katsiotis; Panagiotis Rizomiliotis; Nicholas Kalouptsidis (IEEE Trans. Commun., 2012)

Training-based and blind algorithms for sparsity-aware distributed learning. - Symeon Chouvardas; Gerasimos Mileounis; Nicholas Kalouptsidis; Sergios Theodoridis (EUSIPCO, 2013)

A greedy sparsity-promoting LMS for distributed adaptive learning in diffusion networks. - Symeon Chouvardas; Gerasimos Mileounis; Nicholas Kalouptsidis; Sergios Theodoridis (ICASSP, 2013)

Physical layer security via secret trellis pruning. - Alexandros Katsiotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (PIMRC, 2013)

Secondary constructions of Boolean functions with maximum algebraic immunity. - Konstantinos Limniotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (Cryptogr. Commun., 2013)

A sparsity driven approach to cumulant based identification and order determination. - Gerasimos Mileounis; Nicholas Kalouptsidis (Signal Process., 2013)

Cooperation for secure wireless communications with resource-bounded eavesdroppers. - Nicholas Kolokotronis; Kyriakos Fytrakis; Alexandros Katsiotis; Nicholas Kalouptsidis (GLOBECOM Workshops, 2014)

Short paper: attacking and defending lightweight PHY security schemes for wireless communications. - Nicholas Kolokotronis; Alexandros Katsiotis; Nicholas Kalouptsidis (WISEC, 2014)

Refinement of the DS2 Bound and its Extensions for Discrete Memoryless Symmetric Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Commun. Lett., 2014)

Managing trust in diffusion adaptive networks with malicious agents. - Konstantinos Ntemos; Nicholas Kalouptsidis; Nicholas Kolokotronis (EUSIPCO, 2015)

A cooperative jamming protocol for physical layer security in wireless networks. - Nicholas Kolokotronis; Kyriakos Fytrakis; Alexandros Katsiotis; Nicholas Kalouptsidis (ICASSP, 2015)

Secure encoder designs based on turbo codes. - Alexandros Katsiotis; Nicholas Kolokotronis; Nicholas Kalouptsidis (ICC, 2015)

Comment on "Asymptotic Achievability of the Cramér-Rao Bound for Noisy Compressive Sampling". - Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (CoRR, 2015)

Greedy Sparsity-Promoting Algorithms for Distributed Learning. - Symeon Chouvardas; Gerasimos Mileounis; Nicholas Kalouptsidis; Sergios Theodoridis (IEEE Trans. Signal Process., 2015)

Using trust to mitigate malicious and selfish behavior of autonomous agents in CRNs. - Konstantinos Ntemos; Nicholas Kolokotronis; Nicholas Kalouptsidis (PIMRC, 2016)

Secretly Pruned Convolutional Codes: Security Analysis and Performance Results. - Nicholas Kolokotronis; Alexandros Katsiotis; Nicholas Kalouptsidis (IEEE Trans. Inf. Forensics Secur., 2016)

Trust-based strategies for wireless networks under partial monitoring. - Konstantinos Ntemos; Nicholas Kalouptsidis; Nicholas Kolokotronis (EUSIPCO, 2017)

Corrections to "Asymptotic Achievability of the Cramér-Rao Bound for Noisy Compressive Sampling". - Rémy Boyer; Behtash Babadi; Nicholas Kalouptsidis; Vahid Tarokh (IEEE Trans. Signal Process., 2017)

Secure Information Sharing in Adversarial Adaptive Diffusion Networks. - Konstantinos Ntemos; Jorge Plata-Chaves; Nicholas Kolokotronis; Nicholas Kalouptsidis; Marc Moonen (IEEE Trans. Signal Inf. Process. over Networks, 2018)

Optimal Cooperative Strategies for PHY Security Maximization Subject to SNR Constraints. - Kyriakos Fytrakis; Nicholas Kolokotronis; Konstantinos Katsanos; Nicholas Kalouptsidis (IEEE Access, 2020)

Strong Secrecy for General Multiple-Access Wiretap Channels. - Manos Athanasakos; Nicholas Kalouptsidis (CoRR, 2020)

Dynamic Information Sharing and Punishment Strategies. - Konstantinos Ntemos; George Pikramenos; Nicholas Kalouptsidis (IEEE Trans. Autom. Control., 2022)

Active Hypothesis Testing in Unknown Environments Using Recurrent Neural Networks and Model Free Reinforcement Learning. - George Stamatelis; Nicholas Kalouptsidis (EUSIPCO, 2023)

Local Approximation of Secrecy Capacity. - Emmanouil M. Athanasakos; Nicholas Kalouptsidis; Hariprasad Manjunath (EUSIPCO, 2024)

Neural predictor aided policy optimization for adversarial controlled sensing. - Nicholas Kalouptsidis; George Stamatelis (Signal Process., 2026)