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ORCIDAthanasios P. Liavas
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2020 – today
- 2022
[j23]Paris A. Karakasis
, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosini Papadaki:
Multisubject Task-Related fMRI Data Processing via a Two-Stage Generalized Canonical Correlation Analysis. IEEE Trans. Image Process. 31: 4011-4022 (2022)- [c21]Athanasios P. Liavas, Ioannis Marios Papagiannakos, Christos Kolomvakis:
Nonnegative Tensor Completion: step-sizes for an accelerated variation of the stochastic gradient descent. EUSIPCO 2022: 1976-1980 - 2021
- [c20]Ioanna Siaminou, Athanasios P. Liavas:
An Accelerated Stochastic Gradient for Canonical Polyadic Decomposition. EUSIPCO 2021: 1785-1789 - [c19]Ioanna Siaminou, Ioannis Marios Papagiannakos, Christos Kolomvakis, Athanasios P. Liavas:
Accelerated Stochastic Gradient for Nonnegative Tensor Completion and Parallel Implementation. EUSIPCO 2021: 1790-1794 - [i5]Ioanna Siaminou, Ioannis Marios Papagiannakos, Christos Kolomvakis, Athanasios P. Liavas:
Accelerated Stochastic Gradient for Nonnegative Tensor Completion and Parallel Implementation. CoRR abs/2109.09534 (2021) - [i4]Ioanna Siaminou, Athanasios P. Liavas:
An Accelerated Stochastic Gradient for Canonical Polyadic Decomposition. CoRR abs/2109.13964 (2021) - 2020
- [c18]Paris A. Karakasis, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosyni Papadaki:
Multi-subject Task-related fMRI Data Analysis via Generalized Canonical Correlation Analysis *. EMBC 2020: 1497-1502 - [c17]Paris A. Karakasis, Athanasios P. Liavas, Nicholas D. Sidiropoulos, Panagiotis G. Simos, Efrosyni Papadaki:
Multi-subject Resting-State fMRI Data Analysis via Generalized Canonical Correlation Analysis. EUSIPCO 2020: 1040-1044
2010 – 2019
- 2018
- [j22]Athanasios P. Liavas, Georgios Kostoulas, Georgios Lourakis, Kejun Huang, Nicholas D. Sidiropoulos:
Nesterov-Based Alternating Optimization for Nonnegative Tensor Factorization: Algorithm and Parallel Implementation. IEEE Trans. Signal Process. 66(4): 944-953 (2018) - [j21]Alexios Balatsoukas-Stimming, Athanasios P. Liavas:
Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel. IEEE Wirel. Commun. Lett. 7(5): 868-871 (2018) - [c16]Paris A. Karakasis, Athanasios P. Liavas:
Alternating Optimization for Tensor Factorization with Orthogonality Constraints: Algorithm and Parallel Implementation. HPCS 2018: 439-444 - [c15]Georgios Lourakis, Athanasios P. Liavas:
Nesterov-Based Alternating Optimization for Nonnegative Tensor Completion: Algorithm and Parallel Implementation. SPAWC 2018: 1-5 - 2017
- [c14]Athanasios P. Liavas, Georgios Kostoulas, Georgios Lourakis, Kejun Huang, Nicholas D. Sidiropoulos:
Nesterov-based parallel algorithm for large-scale nonnegative tensor factorization. ICASSP 2017: 5895-5899 - [i3]Alexios Balatsoukas-Stimming, Athanasios P. Liavas:
Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel. CoRR abs/1711.09360 (2017) - 2016
- [j20]Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas:
A Flexible and Efficient Algorithmic Framework for Constrained Matrix and Tensor Factorization. IEEE Trans. Signal Process. 64(19): 5052-5065 (2016) - 2015
- [j19]Athanasios P. Liavas, Nicholas D. Sidiropoulos:
Parallel Algorithms for Constrained Tensor Factorization via Alternating Direction Method of Multipliers. IEEE Trans. Signal Process. 63(20): 5450-5463 (2015) - [c13]Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas:
Efficient algorithms for 'universally' constrained matrix and tensor factorization. EUSIPCO 2015: 2521-2525 - [c12]Athanasios P. Liavas, Nicholas D. Sidiropoulos:
Parallel algorithms for large scale constrained tensor decomposition. ICASSP 2015: 2459-2463 - [i2]Kejun Huang, Nicholas D. Sidiropoulos, Athanasios P. Liavas:
A Flexible and Efficient Algorithmic Framework for Constrained Matrix and Tensor Factorization. CoRR abs/1506.04209 (2015) - 2014
- [i1]Athanasios P. Liavas, Nicholas D. Sidiropoulos:
Parallel Algorithms for Constrained Tensor Factorization via the Alternating Direction Method of Multipliers. CoRR abs/1409.2383 (2014) - 2012
- [j18]Athanasios P. Liavas, Despoina Tsipouridou:
Single-Carrier Systems With MMSE Linear Equalizers: Performance Degradation due to Channel and CFO Estimation Errors. IEEE Trans. Signal Process. 60(6): 3328-3334 (2012) - 2011
- [c11]Athanasios P. Liavas, Despoina Tsipouridou:
Single-carrier systems with MMSE linear equalizers: Performance degradation due to channel and CFO estimation errors. ICASSP 2011: 3384-3387 - 2010
- [j17]George N. Karystinos, Athanasios P. Liavas:
Efficient computation of the binary vector that maximizes a rank-deficient quadratic form. IEEE Trans. Inf. Theory 56(7): 3581-3593 (2010) - [j16]Despoina Tsipouridou, Athanasios P. Liavas:
On the sensitivity of the MIMO Tomlinson-Harashima precoder with respect to channel uncertainties. IEEE Trans. Signal Process. 58(4): 2261-2272 (2010)
2000 – 2009
- 2008
- [j15]Despoina Tsipouridou, Athanasios P. Liavas:
On the Sensitivity of the Transmit MIMO Wiener Filter With Respect to Channel and Noise Second-Order Statistics Uncertainties. IEEE Trans. Signal Process. 56(2): 832-838 (2008) - [c10]George N. Karystinos, Athanasios P. Liavas:
Outage capacity of a cooperative scheme with binary input and a simple relay. ICASSP 2008: 3221-3224 - [c9]George N. Karystinos, Athanasios P. Liavas:
Efficient computation of the binary vector that maximizes a rank-deficient quadratic form. ICASSP 2008: 3577-3580 - [c8]George N. Karystinos, Athanasios P. Liavas:
Quadratic form maximization over the binary field with polynomial complexity. ISIT 2008: 2449-2453 - [c7]Athanasios P. Liavas, George N. Karystinos:
Outage capacity of a noncoherent cooperative protocol with binary input and a simple relay. ISWPC 2008: 661-664 - 2007
- [j14]Athanasios P. Liavas, Despoina Tsipouridou:
On the Performance of the Mismatched MMSE and the LS Linear Equalizers. IEEE Trans. Signal Process. 55(7-1): 3302-3311 (2007) - [c6]Despoina Tsipouridou, Athanasios P. Liavas:
On the Sensitivity of Transmit Wiener Filtering for Broadcast Channels with Respect to Channel Estimation Errors. ICASSP (3) 2007: 797-800 - 2005
- [j13]Athanasios P. Liavas:
Tomlinson-Harashima precoding with partial channel knowledge. IEEE Trans. Commun. 53(1): 5-9 (2005) - [j12]Athanasios P. Liavas:
On the Sensitivity of a Suboptimal Precoding Scheme for Frequency-Selective Block-Based Channels With Respect to Channel Inaccuracies. IEEE Trans. Inf. Theory 51(9): 3374-3381 (2005) - [c5]Athanasios P. Liavas:
Sensitivity analysis of a suboptimal precoding scheme for block channels with respect to channel inaccuracies. ICASSP (3) 2005: 413-416 - 2002
- [j11]A. D. Beikos, Athanasios P. Liavas:
Performance analysis and comparison of blind to non-blind least-squares equalization with respect to effective channel overmodeling. Signal Process. 82(9): 1233-1253 (2002) - [j10]Athanasios P. Liavas:
On the robustness of the finite-length MMSE-DFE with respect to channel and second-order statistics estimation errors. IEEE Trans. Signal Process. 50(11): 2866-2874 (2002) - [c4]Athanasios P. Liavas:
Robustness of the finite-length MMSE-DFE with respect to channel and second-order statistics estimation errors. EUSIPCO 2002: 1-4 - 2001
- [j9]Athanasios P. Liavas, Phillip A. Regalia:
On the behavior of information theoretic criteria for model order selection. IEEE Trans. Signal Process. 49(8): 1689-1695 (2001) - 2000
- [j8]Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas:
On the robustness of the linear prediction method for blind channel identification with respect to effective channel undermodeling/overmodeling. IEEE Trans. Signal Process. 48(5): 1477-1481 (2000) - [j7]Athanasios P. Liavas:
Least-squares channel equalization performance versus equalization delay. IEEE Trans. Signal Process. 48(6): 1832-1835 (2000) - [j6]Jean Pierre Delmas, Houcem Gazzah, Athanasios P. Liavas, Phillip A. Regalia:
Statistical analysis of some second-order methods for blind channel identification/equalization with respect to channel undermodeling. IEEE Trans. Signal Process. 48(7): 1984-1998 (2000) - [c3]Costas Papaloukas, Dimitrios I. Fotiadis, Aristidis Likas, Athanasios P. Liavas, Lampros K. Michalis:
A robust knowledge-based technique for ischemia detection in noisy ECGs. KES 2000: 768-771
1990 – 1999
- 1999
- [j5]Athanasios P. Liavas, Phillip A. Regalia:
On the numerical stability and accuracy of the conventional recursive least squares algorithm. IEEE Trans. Signal Process. 47(1): 88-96 (1999) - [j4]Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas:
Robustness of least-squares and subspace methods for blind channel identification/equalization with respect to effective channel undermodeling/overmodeling. IEEE Trans. Signal Process. 47(6): 1636-1645 (1999) - [j3]Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas:
Blind channel approximation: effective channel order determination. IEEE Trans. Signal Process. 47(12): 3336-3344 (1999) - 1998
- [j2]Athanasios P. Liavas, George V. Moustakides, Günter Henning, Emmanouil Z. Psarakis, Peter Husar:
A periodogram-based method for the detection of steady-state visually evoked potentials. IEEE Trans. Biomed. Eng. 45(2): 242-248 (1998) - [j1]Athanasios P. Liavas, Phillip A. Regalia:
Acoustic echo cancellation: do IIR models offer better modeling capabilities than their FIR counterparts? IEEE Trans. Signal Process. 46(9): 2499-2504 (1998) - [c2]Athanasios P. Liavas, Phillip A. Regalia, Jean Pierre Delmas:
Robustness of least-squares and subspace methods for blind channel identification/equalization with respect to channel undermodeling. EUSIPCO 1998: 1-4 - [c1]Athanasios P. Liavas, Phillip A. Regalia:
Numerical stability issues of the conventional recursive least squares algorithm. ICASSP 1998: 1409-1412
Coauthor Index
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