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Sergios Theodoridis

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Local Competition and Stochasticity for Adversarial Robustness in Deep Learning


Jan 04, 2021
Konstantinos P. Panousis, Sotirios Chatzis, Antonios Alexos, Sergios Theodoridis

* Under Review AISTATS 2021. arXiv admin note: substantial text overlap with arXiv:2006.10620 

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Towards Probabilistic Tensor Canonical Polyadic Decomposition 2.0: Automatic Tensor Rank Learning Using Generalized Hyperbolic Prior


Sep 05, 2020
Lei Cheng, Zhongtao Chen, Qingjiang Shi, Yik-Chung Wu, Sergios Theodoridis


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Early soft and flexible fusion of EEG and fMRI via tensor decompositions


May 12, 2020
Christos Chatzichristos, Eleftherios Kofidis, Lieven De Lathauwer, Sergios Theodoridis, Sabine Van Huffel


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FedLoc: Federated Learning Framework for Cooperative Localization and Location Data Processing


Mar 08, 2020
Feng Yin, Zhidi Lin, Yue Xu, Qinglei Kong, Deshi Li, Sergios Theodoridis, Shuguang, Cui


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Variational Conditional-Dependence Hidden Markov Models for Human Action Recognition


Feb 13, 2020
Konstantinos P. Panousis, Sotirios Chatzis, Sergios Theodoridis

* Under review ICML 2020 

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Linear Multiple Low-Rank Kernel Based Stationary Gaussian Processes Regression for Time Series


Apr 21, 2019
Feng Yin, Lishuo Pan, Xinwei He, Tianshi Chen, Sergios Theodoridis, Zhi-Quan, Luo

* 15 pages, 5 figures, submitted 

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Nonparametric Bayesian Deep Networks with Local Competition


May 19, 2018
Konstantinos P. Panousis, Sotirios Chatzis, Sergios Theodoridis

* Submitted to 32nd Conference on Neural Information Processing Systems (NIPS 2018) 

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Information Assisted Dictionary Learning for fMRI data analysis


May 11, 2018
Manuel Morante, Yannis Kopsinis, Sergios Theodoridis

* 33 pages, 4 figures, Preliminary Results 

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Unsupervised learning of the brain connectivity dynamic using residual D-net


Apr 20, 2018
Youngjoo Seo, Manuel Morante, Yannis Kopsinis, Sergios Theodoridis

* 10 pages, 5 figueres and 3 tables, under review in MIDL 2018 

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Online Distributed Learning Over Networks in RKH Spaces Using Random Fourier Features


Mar 24, 2017
Pantelis Bouboulis, Symeon Chouvardas, Sergios Theodoridis


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Assisted Dictionary Learning for fMRI Data Analysis


Oct 11, 2016
Manuel Morante Moreno, Yannis Kopsinis, Eleftherios Kofidis, Christos Chatzichristos, Sergios Theodoridis

* 5 pages, 2 figures 

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Robust Non-linear Regression: A Greedy Approach Employing Kernels with Application to Image Denoising


Aug 03, 2016
George Papageorgiou, Pantelis Bouboulis, Sergios Theodoridis


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Higher-Order Block Term Decomposition for Spatially Folded fMRI Data


Jul 15, 2016
Christos Chatzichristos, Eleftherios Kofidis, Giannis Kopsinis, Sergios Theodoridis


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Efficient KLMS and KRLS Algorithms: A Random Fourier Feature Perspective


Jun 12, 2016
Pantelis Bouboulis, Spyridon Pougkakiotis, Sergios Theodoridis

* presented in the 2016 IEEE Workshop on Statistical Signal Processing (SSP 16) 

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Complex Support Vector Machines for Regression and Quaternary Classification


Jul 15, 2014
Pantelis Bouboulis, Sergios Theodoridis, Charalampos Mavroforakis, Leoni Dalla

* Manuscript accepted in IEEE Transactions on Neural Networks and Learning Systems 

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The Augmented Complex Kernel LMS


Oct 05, 2011
Pantelis Bouboulis, Sergios Theodoridis, Michael Mavroforakis

* manuscript submitted to IEE Transactions on Signal Processing 

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Edge Preserving Image Denoising in Reproducing Kernel Hilbert Spaces


Nov 27, 2010
Pantelis Bouboulis, Sergios Theodoridis

* Proceedings of the 20th International Conference on Pattern Recognition, Istanbul: Turkey, 23-26 August 2010 
* This work has been selected for the Best Scientific Paper Award (Track III: Signal, Speech, Image and Video Processing) at the ICPR 2010 

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Extension of Wirtinger's Calculus to Reproducing Kernel Hilbert Spaces and the Complex Kernel LMS


Nov 27, 2010
Pantelis Bouboulis, Sergios Theodoridis

* 15 pages (double column), preprint of article accepted in IEEE Trans. Sig. Proc 

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Extension of Wirtinger Calculus in RKH Spaces and the Complex Kernel LMS


May 25, 2010
Pantelis Bouboulis, Sergios Theodoridis

* 6 pages, 3 figures manuscript submitted to MLSP 2010 

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The Complex Gaussian Kernel LMS algorithm


May 06, 2010
Pantelis Bouboulis, Sergios Theodoridis

* 10 pages, 3 figures Manuscript submitted to ICANN 2010 

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