New fast inverse QR least squares adaptive algorithms. - Athanasios A. Rontogiannis; Sergios Theodoridis (ICASSP, 1995)

A highly parallel multichannel fast qrd-ls adaptive algorithm. - Athanasios A. Rontogiannis; Sergios Theodoridis (EUSIPCO, 1996)

An adaptive LS algorithm based on orthogonal Householder transformations. - Athanasios A. Rontogiannis; Sergios Theodoridis (ICECS, 1996)

On inverse factorization adaptive least-squares algorithms. - Athanasios A. Rontogiannis; Sergios Theodoridis (Signal Process., 1996)

Efficient block implementation of the decision feedback equalizer. - Kostas Berberidis; Athanasios A. Rontogiannis; Sergios Theodoridis (IEEE Signal Process. Lett., 1998)

New fast QR decomposition least squares adaptive algorithms. - Athanasios A. Rontogiannis; Sergios Theodoridis (IEEE Trans. Signal Process., 1998)

Multichannel fast QRD-LS adaptive filtering: new technique and algorithms. - Athanasios A. Rontogiannis; Sergios Theodoridis (IEEE Trans. Signal Process., 1998)

Efficient decision feedback equalizer for sparse multipath channels. - Kostas Berberidis; Athanasios A. Rontogiannis (ICASSP, 2000)

A (SEMI)-blind equalization technique for wireless burst transmission systems. - Athanasios A. Rontogiannis; Kostas Berberidis; Alexandra Marava (EUSIPCO, 2002)

Semi-blind estimation of multipath channel parameters via a separable least squares approach. - Athanasios A. Rontogiannis; Alexandra Marava; Kostas Berberidis; Jacques Palicot (DSP, 2002)

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

Efficient multipath channel estimation using a semi-blind parametric technique. - Athanasios A. Rontogiannis; Alexandra Marava; Kostas Berberidis; Jacques Palicot (ICASSP (4), 2003)

Efficient decision feedback equalization for sparse wireless channels. - Athanasios A. Rontogiannis; Kostas Berberidis (IEEE Trans. Wirel. Commun., 2003)

Digital Communications over Generalized-K Fading Channels. - Petros S. Bithas; Nikolaos C. Sagias; P. Takis Mathiopoulos; George K. Karagiannidis; Athanasios A. Rontogiannis (ISWCS, 2005)

Efficient semi-blind estimation of multipath channel parameters via a delay decoupling optimization approach. - Athanasios A. Rontogiannis; Kostas Berberidis; Alexandra Marava; Jacques Palicot (Signal Process., 2005)

A Robust Parametric Technique for Multipath Channel Estimation in the Uplink of a DS-CDMA System. - Vassilis Kekatos; Athanasios A. Rontogiannis; Kostas Berberidis (EURASIP J. Wirel. Commun. Netw., 2006)

On the performance analysis of digital communications over generalized-K fading channels. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos; George K. Karagiannidis; Athanasios A. Rontogiannis (IEEE Commun. Lett., 2006)

A square-root adaptive V-BLAST algorithm for fast time-varying MIMO channels. - Athanasios A. Rontogiannis; Vassilis Kekatos; Kostas Berberidis (IEEE Signal Process. Lett., 2006)

Performance Analysis of Orthogonal Space Time Block Coding over Hoyt Fading Channels. - George A. Ropokis; Athanasios A. Rontogiannis; P. Takis Mathiopoulos (GLOBECOM, 2007)

A Block Adaptive Frequency Domain MIMO DFE for Wideband Channels. - Vassilis Kekatos; Kostas Berberidis; Athanasios A. Rontogiannis (ICASSP (3), 2007)

Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels. - Vassilis Kekatos; Athanasios A. Rontogiannis; Kostas Berberidis (EURASIP J. Adv. Signal Process., 2007)

A soft constrained MAP estimator for supervised hyperspectral signal unmixing. - Konstantinos Themelis; Athanasios A. Rontogiannis (EUSIPCO, 2008)

Channel estimation techniques for half-duplex cooperative communication systems. - Aris S. Lalos; Athanasios A. Rontogiannis; Kostas Berberidis (ISWPC, 2008)

Semi-blind channel estimation schemes based on a cooperative form of the cross relation criterion. - Christos Mavrokefalidis; Kostas Berberidis; Athanasios A. Rontogiannis (ISWPC, 2008)

Quadratic forms in normal RVs: theory and applications to OSTBC over hoyt fading channels. - George A. Ropokis; Athanasios A. Rontogiannis; P. Takis Mathiopoulos (IEEE Trans. Wirel. Commun., 2008)

Time domain constellation shaping technique for peak-to-average power ratio reduction. - Vassilis Dalakas; Athanasios A. Rontogiannis; P. Takis Mathiopoulos (IET Commun., 2009)

Semi-Supervised Hyperspectral Unmixing via the Weighted Lasso. - Konstantinos Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (ICASSP, 2010)

Adaptive BLAST decision-feedback equalizer for MIMO-FBMC/OQAM systems. - Eleftherios Kofidis; Athanasios A. Rontogiannis (PIMRC, 2010)

An Exact Performance Analysis of MRC / OSTBC over Generalized Fading Channels. - George A. Ropokis; Athanasios A. Rontogiannis; P. Takis Mathiopoulos; Kostas Berberidis (IEEE Trans. Commun., 2010)

Preamble-based channel estimation for CP-OFDM and OFDM/OQAM systems: a comparative study. - Dimitrios Katselis; Eleftherios Kofidis; Athanasios A. Rontogiannis; Sergios Theodoridis (IEEE Trans. Signal Process., 2010)

Frequency domain channel estimation for cooperative communication networks. - Aris S. Lalos; Athanasios A. Rontogiannis; Kostas Berberidis (IEEE Trans. Signal Process., 2010)

Sparse semi-supervised hyperspectral unmixing using a novel iterative Bayesian inference algorithm. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (EUSIPCO, 2011)

Training design in single relay AF cooperative systems with correlated channels. - Christos Mavrokefalidis; Athanasios A. Rontogiannis; Kostas Berberidis (ICASSP, 2011)

Greedy algorithms for sparse adaptive decision feedback equalization. - Aris S. Lalos; Evangelos Vlachos; Kostas Berberidis; Athanasios A. Rontogiannis (ISSPIT, 2011)

BER Performance Analysis of Cooperative DaF Relay Networks and a New Optimal DaF Strategy. - George A. Ropokis; Athanasios A. Rontogiannis; Kostas Berberidis (IEEE Trans. Wirel. Commun., 2011)

A fast algorithm for the Bayesian adaptive lasso. - Athanasios A. Rontogiannis; Konstantinos E. Themelis; Konstantinos Koutroumbas (EUSIPCO, 2012)

Space Mission Characteristics and Requirements to be Addressed by Space-Data Router Enhancement of Space-Data Exploitation. - Ioannis A. Daglis; Olga Sykioti; Anastasios Anastasiadis; Georgios Balasis; Iphigenia Keramitsoglou; Dimitris Paronis; Athanasios A. Rontogiannis; Sotiris Diamantopoulos (WWIC, 2012)

Adaptive BLAST-type decision-feedback equalizers for DS-CDMA systems. - Constantinos Rizogiannis; Eleftherios Kofidis; Athanasios A. Rontogiannis; Sergios Theodoridis (Signal Process., 2012)

A Novel Hierarchical Bayesian Approach for Sparse Semisupervised Hyperspectral Unmixing. - Konstantinos Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (IEEE Trans. Signal Process., 2012)

Variational Bayesian sparse adaptive filtering using a Gauss-Seidel recursive approach. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (EUSIPCO, 2013)

Performance analysis of mobile communication networks in the presence of composite fading, noise and interference. - Petros S. Bithas; Athanasios A. Rontogiannis (ISSPIT, 2013)

Adaptive possibilistic clustering. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis (ISSPIT, 2013)

Preamble Design for Channel Estimation in OFDM/OQAM Cooperative Systems. - Christos Mavrokefalidis; Eleftherios Kofidis; Athanasios A. Rontogiannis; Sergios Theodoridis (ISWCS, 2013)

Optimal training design for channel estimation in OFDM/OQAM cooperative systems. - Christos Mavrokefalidis; Eleftherios Kofidis; Athanasios A. Rontogiannis; Sergios Theodoridis (SPAWC, 2013)

A fast variational Bayes algorithm for sparse semi-supervised unmixing of OMEGA/Mars express data. - Athanasios A. Rontogiannis; Konstantinos Themelis; Olga Sykioti; Konstantinos Koutroumbas (WHISPERS, 2013)

Preamble-based channel estimation in OFDM/OQAM systems: A review. - Eleftherios Kofidis; Dimitrios Katselis; Athanasios A. Rontogiannis; Sergios Theodoridis (Signal Process., 2013)

Group-sparse adaptive variational Bayes estimation. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (EUSIPCO, 2014)

Adaptive variational sparse Bayesian estimation. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (ICASSP, 2014)

Sparse adaptive possibilistic clustering. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis (ICASSP, 2014)

A layered sparse adaptive possibilistic approach for hyperspectral image clustering. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis; Olga Sykioti (IGARSS, 2014)

Efficient adaptive equalization of doubly dispersive channels in MIMO-FBMC/OQAM systems. - Christos Mavrokefalidis; Athanasios A. Rontogiannis; Eleftherios Kofidis; Antonios Beikos; Sergios Theodoridis (ISWCS, 2014)

Performance analysis of cooperative networks in shadowed fading with co-channel interference. - Petros S. Bithas; Athanasios A. Rontogiannis (PIMRC, 2014)

Sequential Sparse Adaptive Possibilistic Clustering. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis (SETN, 2014)

Analysis of Threshold-Based Selection Diversity Receivers. - Petros S. Bithas; Athanasios A. Rontogiannis (VTC Fall, 2014)

A variational Bayes algorithm for joint-sparse abundance estimation. - Paris V. Giampouras; Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (WHISPERS, 2014)

SINR analysis of cognitive underlay systems with multiple primary transceivers in Nakagami-m fading. - Petros S. Bithas; Athanasios A. Rontogiannis; Kostas Berberidis (WiMob, 2014)

Preamble-based channel estimation in single-relay networks using FBMC/OQAM. - Christos Mavrokefalidis; Eleftherios Kofidis; Athanasios A. Rontogiannis; Sergios Theodoridis (EURASIP J. Adv. Signal Process., 2014)

A Variational Bayes Framework for Sparse Adaptive Estimation. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (IEEE Trans. Signal Process., 2014)

Online Bayesian low-rank subspace learning from partial observations. - Paris Giampouras; Athanasios A. Rontogiannis; Konstantinos E. Themelis; Konstantinos Koutroumbas (EUSIPCO, 2015)

Online Bayesian group sparse parameter estimation using a generalized inverse Gaussian Markov chain. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos Koutroumbas (EUSIPCO, 2015)

Joint spectral unmixing and clustering for identifying homogeneous regions in hyperspectral images. - Eleftheria A. Mylona; Olga A. Sykioti; Konstantinos Koutroumbas; Athanasios A. Rontogiannis (IGARSS, 2015)

A new sparsity-aware feature selection method for hyperspectral image clustering. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis; Olga A. Sykioti (IGARSS, 2015)

Hyperspectral image unmixing via simultaneously sparse and low rank abundance matrix estimation. - Paris V. Giampouras; Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (WHISPERS, 2015)

Mobile Communication Systems in the Presence of Fading/Shadowing, Noise and Interference. - Petros S. Bithas; Athanasios A. Rontogiannis (IEEE Trans. Commun., 2015)

Hyperspectral image clustering using a novel efficient online possibilistic algorithm. - Spyridoula D. Xenaki; Konstantinos D. Koutroumbas; Athanasios A. Rontogiannis (EUSIPCO, 2016)

Detecting hyperplane clusters with adaptive possibilistic clustering. - Konstantinos Koutroumbas; Spyridoula D. Xenaki; Athanasios A. Rontogiannis (SETN, 2016)

Optimal sensing and power allocation in pilot-aided shared access systems: A BER minimization approach. - George A. Ropokis; Miltiades C. Filippou; Athanasios A. Rontogiannis; Luiz A. DaSilva; Nicola Marchetti; Valerio Frascolla; P. Takis Mathiopoulos (SPAWC, 2016)

Online low-rank subspace learning from incomplete data using rank revealing ℓ2/ℓ1 regularization. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (SSP, 2016)

A Novel Adaptive Possibilistic Clustering Algorithm. - Spyridoula D. Xenaki; Konstantinos D. Koutroumbas; Athanasios A. Rontogiannis (IEEE Trans. Fuzzy Syst., 2016)

Sparsity-Aware Possibilistic Clustering Algorithms. - Spyridoula D. Xenaki; Konstantinos D. Koutroumbas; Athanasios A. Rontogiannis (IEEE Trans. Fuzzy Syst., 2016)

Simultaneously Sparse and Low-Rank Abundance Matrix Estimation for Hyperspectral Image Unmixing. - Paris V. Giampouras; Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (IEEE Trans. Geosci. Remote. Sens., 2016)

Variational Bayes Group Sparse Time-Adaptive Parameter Estimation With Either Known or Unknown Sparsity Pattern. - Konstantinos E. Themelis; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (IEEE Trans. Signal Process., 2016)

An Improved Threshold-Based Channel Selection Scheme for Wireless Communication Systems. - Petros S. Bithas; Athanasios A. Rontogiannis; George K. Karagiannidis (IEEE Trans. Wirel. Commun., 2016)

User selection scheme with limited feedback processing and outdated CSI in multiuser relay networks. - Petros S. Bithas; Athanasios A. Rontogiannis (Wirel. Commun. Mob. Comput., 2016)

Low-rank and sparse NMF for joint endmembers' number estimation and blind unmixing of hyperspectral images. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (EUSIPCO, 2017)

Alternating Iteratively Reweighted Minimization Algorithms for Low-Rank Matrix Factorization. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (CoRR, 2017)

Online sparse and low-rank subspace learning from incomplete data: A Bayesian view. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos E. Themelis; Konstantinos D. Koutroumbas (Signal Process., 2017)

Spectral Unmixing-Based Clustering of High-Spatial Resolution Hyperspectral Imagery. - Eleftheria A. Mylona; Olga A. Sykioti; Konstantinos D. Koutroumbas; Athanasios A. Rontogiannis (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Distributed Blind Hyperspectral Unmixing via Joint Sparsity and Low-Rank Constrained Non-Negative Matrix Factorization. - Christos G. Tsinos; Athanasios A. Rontogiannis; Kostas Berberidis (IEEE Trans. Computational Imaging, 2017)

A Novel Online Generalized Possibilistic Clustering Algorithm for Big Data Processing. - Spyridoula D. Xenaki; Konstantinos D. Koutroumbas; Athanasios A. Rontogiannis (EUSIPCO, 2018)

Robust PCA via Alternating Iteratively Reweighted Low-Rank Matrix Factorization. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (ICIP, 2018)

Generalized Adaptive Possibilistic C-Means Clustering Algorithm. - Spyridoula D. Xenaki; Konstantinos Koutroumbas; Athanasios A. Rontogiannis (SETN, 2018)

A Computationally Efficient Tensor Completion Algorithm. - Ioannis C. Tsaknakis; Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (IEEE Signal Process. Lett., 2018)

On the Convergence of the Sparse Possibilistic C-Means Algorithm. - Konstantinos D. Koutroumbas; Spyridoula D. Xenaki; Athanasios A. Rontogiannis (IEEE Trans. Fuzzy Syst., 2018)

A Projected Newton-type Algorithm for Nonnegative Matrix Factorization with Model Order Selection. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (ICASSP, 2019)

Alternating Iteratively Reweighted Least Squares Minimization for Low-Rank Matrix Factorization. - Paris V. Giampouras; Athanasios A. Rontogiannis; Konstantinos D. Koutroumbas (IEEE Trans. Signal Process., 2019)

A novel variational form of the Schatten-$p$ quasi-norm. - Paris Giampouras; René Vidal; Athanasios A. Rontogiannis; Benjamin D. Haeffele (NeurIPS, 2020)

Online Reweighted Least Squares Robust PCA. - Athanasios A. Rontogiannis; Paris V. Giampouras; Konstantinos D. Koutroumbas (IEEE Signal Process. Lett., 2020)

A Bayesian Approach to Block-Term Tensor Decomposition Model Selection and Computation. - Paris V. Giampouras; Athanasios A. Rontogiannis; Eleftherios Kofidis (EUSIPCO, 2021)

Rank-Revealing Block-Term Decomposition for Tensor Completion. - Athanasios A. Rontogiannis; Paris V. Giampouras; Eleftherios Kofidis (ICASSP, 2021)

Block-Term Tensor Decomposition: Model Selection and Computation. - Athanasios A. Rontogiannis; Eleftherios Kofidis; Paris V. Giampouras (IEEE J. Sel. Top. Signal Process., 2021)

A Projected Newton-type Algorithm for Rank - revealing Nonnegative Block - Term Tensor Decomposition. - Eleftherios Kofidis; Paris V. Giampouras; Athanasios A. Rontogiannis (EUSIPCO, 2022)

Block-Term Tensor Decomposition Model Selection and Computation: The Bayesian Way. - Paris V. Giampouras; Athanasios A. Rontogiannis; Eleftherios Kofidis (IEEE Trans. Signal Process., 2022)

Online rank-revealing block-term tensor decomposition. - Athanasios A. Rontogiannis; Eleftherios Kofidis; Paris V. Giampouras (Signal Process., 2023)

Robust Rank-Revealing Block-Term Decomposition and Hyperspectral Image Denoising. - Eleftherios Kofidis; Athanasios A. Rontogiannis (IGARSS, 2024)

Hyperspectral Image Denoising by Jointly Using Variational Bayes Matrix Factorization and Deep Image Prior. - Loukas Sfountouris; Athanasios A. Rontogiannis (IGARSS, 2024)

An Approximate Deep Equilibrium Scheme for Trainable Nonnegative Matrix Factorization. - Foivos Ntoulas-Panagiotopoulos; Athanasios A. Rontogiannis (DSP, 2025)