Athanasios P. Liavas

49 papers B 2Misc 6Journal 28Unranked 13
YearRankTypeTitle / Venue / Authors
2022 J jnl
Multisubject Task-Related fMRI Data Processing via a Two-Stage Generalized Canonical Correlation Analysis.
IEEE Trans. Image Process.
Paris A. Karakasis, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosini Papadaki
2022 — conf
Nonnegative Tensor Completion: step-sizes for an accelerated variation of the stochastic gradient descent.
EUSIPCO
Athanasios P. Liavas, Ioannis Marios Papagiannakos, Christos Kolomvakis
2021 — conf
Accelerated Stochastic Gradient for Nonnegative Tensor Completion and Parallel Implementation.
EUSIPCO
Ioanna Siaminou, Ioannis Marios Papagiannakos, Christos Kolomvakis, Athanasios P. Liavas
2021 J jnl
Accelerated Stochastic Gradient for Nonnegative Tensor Completion and Parallel Implementation.
CoRR
Ioanna Siaminou, Ioannis Marios Papagiannakos, Christos Kolomvakis, Athanasios P. Liavas
2021 — conf
An Accelerated Stochastic Gradient for Canonical Polyadic Decomposition.
EUSIPCO
Ioanna Siaminou, Athanasios P. Liavas
2021 J jnl
An Accelerated Stochastic Gradient for Canonical Polyadic Decomposition.
CoRR
Ioanna Siaminou, Athanasios P. Liavas
2020 — conf
Multi-subject Resting-State fMRI Data Analysis via Generalized Canonical Correlation Analysis.
EUSIPCO
Paris A. Karakasis, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosyni Papadaki
2020 — conf
Multi-subject Task-related fMRI Data Analysis via Generalized Canonical Correlation Analysis
EMBC
Paris A. Karakasis, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosyni Papadaki
2018 — conf
Alternating Optimization for Tensor Factorization with Orthogonality Constraints: Algorithm and Parallel Implementation.
HPCS
Paris A. Karakasis, Athanasios P. Liavas
2018 J jnl
Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel.
IEEE Wirel. Commun. Lett.
Alexios Balatsoukas-Stimming, Athanasios P. Liavas
2018 — conf
Nesterov-Based Alternating Optimization for Nonnegative Tensor Completion: Algorithm and Parallel Implementation.
SPAWC
Georgios Lourakis, Athanasios P. Liavas
2018 J jnl
Nesterov-Based Alternating Optimization for Nonnegative Tensor Factorization: Algorithm and Parallel Implementation.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Georgios Kostoulas, Georgios Lourakis, Kejun Huang, Nicholas D. Sidiropoulos
2017 J jnl
Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel.
CoRR
Alexios Balatsoukas-Stimming, Athanasios P. Liavas
2017 Misc conf
Nesterov-based parallel algorithm for large-scale nonnegative tensor factorization.
ICASSP
Athanasios P. Liavas, Georgios Kostoulas, Georgios Lourakis, Kejun Huang, Nicholas D. Sidiropoulos
2016 J jnl
A Flexible and Efficient Algorithmic Framework for Constrained Matrix and Tensor Factorization.
IEEE Trans. Signal Process.
Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas
2015 J jnl
A Flexible and Efficient Algorithmic Framework for Constrained Matrix and Tensor Factorization.
CoRR
Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas
2015 — conf
Efficient algorithms for 'universally' constrained matrix and tensor factorization.
EUSIPCO
Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas
2015 J jnl
Parallel Algorithms for Constrained Tensor Factorization via Alternating Direction Method of Multipliers.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Nicholas D. Sidiropoulos
2015 Misc conf
Parallel algorithms for large scale constrained tensor decomposition.
ICASSP
Athanasios P. Liavas, Nicholas D. Sidiropoulos
2014 J jnl
Parallel Algorithms for Constrained Tensor Factorization via the Alternating Direction Method of Multipliers.
CoRR
Athanasios P. Liavas, Nicholas D. Sidiropoulos
2012 J jnl
Single-Carrier Systems With MMSE Linear Equalizers: Performance Degradation due to Channel and CFO Estimation Errors.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Despoina Tsipouridou
2011 Misc conf
Single-carrier systems with MMSE linear equalizers: Performance degradation due to channel and CFO estimation errors.
ICASSP
Athanasios P. Liavas, Despoina Tsipouridou
2010 J jnl
Efficient computation of the binary vector that maximizes a rank-deficient quadratic form.
IEEE Trans. Inf. Theory
George N. Karystinos, Athanasios P. Liavas
2010 J jnl
On the sensitivity of the MIMO Tomlinson-Harashima precoder with respect to channel uncertainties.
IEEE Trans. Signal Process.
Despoina Tsipouridou, Athanasios P. Liavas
2008 Misc conf
Efficient computation of the binary vector that maximizes a rank-deficient quadratic form.
ICASSP
George N. Karystinos, Athanasios P. Liavas
2008 J jnl
On the Sensitivity of the Transmit MIMO Wiener Filter With Respect to Channel and Noise Second-Order Statistics Uncertainties.
IEEE Trans. Signal Process.
Despoina Tsipouridou, Athanasios P. Liavas
2008 Misc conf
Outage capacity of a cooperative scheme with binary input and a simple relay.
ICASSP
George N. Karystinos, Athanasios P. Liavas
2008 — conf
Outage capacity of a noncoherent cooperative protocol with binary input and a simple relay.
ISWPC
Athanasios P. Liavas, George N. Karystinos
2008 B conf
Quadratic form maximization over the binary field with polynomial complexity.
ISIT
George N. Karystinos, Athanasios P. Liavas
2007 J jnl
On the Performance of the Mismatched MMSE and the LS Linear Equalizers.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Despoina Tsipouridou
2007 — conf
On the Sensitivity of Transmit Wiener Filtering for Broadcast Channels with Respect to Channel Estimation Errors.
ICASSP (3)
Despoina Tsipouridou, Athanasios P. Liavas
2005 J jnl
On the Sensitivity of a Suboptimal Precoding Scheme for Frequency-Selective Block-Based Channels With Respect to Channel Inaccuracies.
IEEE Trans. Inf. Theory
Athanasios P. Liavas
2005 — conf
Sensitivity analysis of a suboptimal precoding scheme for block channels with respect to channel inaccuracies.
ICASSP (3)
Athanasios P. Liavas
2005 J jnl
Tomlinson-Harashima precoding with partial channel knowledge.
IEEE Trans. Commun.
Athanasios P. Liavas
2002 J jnl
On the robustness of the finite-length MMSE-DFE with respect to channel and second-order statistics estimation errors.
IEEE Trans. Signal Process.
Athanasios P. Liavas
2002 J jnl
Performance analysis and comparison of blind to non-blind least-squares equalization with respect to effective channel overmodeling.
Signal Process.
A. D. Beikos, Athanasios P. Liavas
2002 — conf
Robustness of the finite-length MMSE-DFE with respect to channel and second-order statistics estimation errors.
EUSIPCO
Athanasios P. Liavas
2001 J jnl
On the behavior of information theoretic criteria for model order selection.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia
2000 B conf
A robust knowledge-based technique for ischemia detection in noisy ECGs.
KES
Costas Papaloukas, Dimitrios I. Fotiadis, Aristidis Likas, Athanasios P. Liavas, Lampros K. Michalis
2000 J jnl
Least-squares channel equalization performance versus equalization delay.
IEEE Trans. Signal Process.
Athanasios P. Liavas
2000 J jnl
On the robustness of the linear prediction method for blind channel identification with respect to effective channel undermodeling/overmodeling.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas
2000 J jnl
Statistical analysis of some second-order methods for blind channel identification/equalization with respect to channel undermodeling.
IEEE Trans. Signal Process.
Jean Pierre Delmas, Houcem Gazzah, Athanasios P. Liavas, Phillip A. Regalia
1999 J jnl
Blind channel approximation: effective channel order determination.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas
1999 J jnl
On the numerical stability and accuracy of the conventional recursive least squares algorithm.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia
1999 J jnl
Robustness of least-squares and subspace methods for blind channel identification/equalization with respect to effective channel undermodeling/overmodeling.
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas
1998 J jnl
A periodogram-based method for the detection of steady-state visually evoked potentials.
IEEE Trans. Biomed. Eng.
Athanasios P. Liavas, George V. Moustakides, Günter Henning, Emmanouil Z. Psarakis, Peter Husar
1998 J jnl
Acoustic echo cancellation: do IIR models offer better modeling capabilities than their FIR counterparts?
IEEE Trans. Signal Process.
Athanasios P. Liavas, Phillip A. Regalia
1998 Misc conf
Numerical stability issues of the conventional recursive least squares algorithm.
ICASSP
Athanasios P. Liavas, Phillip A. Regalia
1998 — conf
Robustness of least-squares and subspace methods for blind channel identification/equalization with respect to channel undermodeling.
EUSIPCO
Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas