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Από την ίδρυση του, τα μέλη του ΚΕΘΕΜ έχουν δημοσιεύσει 63 άρθρα σε διεθνή περιοδικά με κριτές, 6 κεφάλαια σε βιβλία και 14 άρθρα σε πρακτικά συνεδρίων με πλήρη πρακτικά εργασιών
Δημοσιεύσεις σε Διεθνή Περιοδικά με Κριτές
2024
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Messinis S, Temenos N, Protonotarios NE, Rallis I, Kalogeras D and Doulamis N, Enhancing Internet of Medical Things security with artificial intelligence: A comprehensive review, Compututers in Biology and Medicine 2024; 170:108036. doi: 10.1016/j.compbiomed.2024.108036
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Messinis SC, Protonotarios NE and Doulamis N, Differentially Private Client Selection and Resource Allocation in Federated Learning for Medical Applications Using Graph Neural Networks, Sensors 2024; 24(16):5142. doi: 10.3390/s24165142
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Argyrokastritis I, Kalimeris K and Mindrinos L, An analytical solution for vertical infiltration in homogeneous bounded profiles. European Journal of Soil Science 2024; 75(4):e13547. doi: 10.1111/ejss.13547
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Kalimeris K and Mindrinos L. Scattering problems for the wave equation in 1D: D’Alembert-type representations and a reconstruction method. Partial Differential Equations and Applications, 2024; 5(2), 5. doi:10.1007/s42985-024-00277-z
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Fokas AS and Kalimeris K, The Saffman–Taylor problem and several sets of remarkable integral identities. Studies in Applied Mathematics 2024; 153(3):e12734. doi:10.1111/sapm.12734
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Kalimeris K, Özsari T and Dikaios N, Numerical computation of Neumann controls for the heat equation on a finite interval, IEEE Transactions on Automatic Control 2024; 28(3):1398-1411. doi: 10.1109/TAC.2023.3263753.
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G Papanastasiou G, Dikaios N, Huang J, Wang C and Yang G, Is attention all you need in medical image analysis? A review, IEEE Journal of Biomedical and Health Informatics 2024; 69(1):161, doi: 10.1109/JBHI.2023.3348436.
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Vrachliotis A, Gaitanis A, Protonotarios NE, Kastis GA and Costaridou L, Noninvasive Quantification of Glucose Metabolism in Mice Myocardium Using the Spline Reconstruction Technique, Journal of Imaging 2024; 10(7):170. doi: 10.3390/jimaging10070170.
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Chatziafratis A, Fokas AS and Aifantis EC, Variations of heat equation on the half‐line via the Fokas method, Mathematical Methods in the Applied Sciences 2024. doi:10.1002/mma.10303
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Chatziafratis A, Fokas AS and Aifantis EC, On Barenblatt’s pseudoparabolic equation with forcing on the half‐line via the Fokas method, ZAMM‐Journal of Applied Mathematics and Mechanics/Zeitschrift für Angewandte Mathematik und Mechanik 2024;104(3): e202300614. doi: 10.1002/zamm.202300614
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Chatziafratis A, Aifantis EC, Carbery A and Fokas AS, Integral representations for the double-diffusivity system on the half-line, Zeitschrift für angewandte Mathematik und Physik 2024;75(2), 54. doi: 10.1007/s00033-023-02174-8
2023
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Protonotarios NE, Kastis GA, Fotopoulos AD, Tzakos AG, Vlachos D and Dikaios N, Motion-compensated PET image reconstruction via separable parabolic surrogates, Mathematics 2023; 11(1):55. doi: 10.3390/math11010055
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Marinakis V, Fokas AS, Kastis GA and Protonotarios NE, Chebyshev interpolation using almost equally spaced points and applications in emission tomography, Mathematics 2023; 11(23): 4757. doi: 10.3390/math11234757
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Papanastasiou G, Yang G, Fotiadis DI, Dikaios N, Wang C, Huda A, Sobolevsky L, Raasch J, Perez E, Sidhu G and Palumbo D, Large-scale deep learning analysis for the early diagnosis of primary immunodeficiencies, Nature Communications Medicine 2023; 3:189. doi: 10.1038/s43856-023-00412-8
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Özsarı T and Kalimeris K, Existence of unattainable states for Schrödinger type flows on the half-line, IMA Journal of Mathematical Control and Information 2023; 40(4):789. doi:10.1093/imamci/dnad032
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Untracht GR, Dikaios N, Durrani AK, Bapir M, Sarunic MV, Sampson DD, Heiss C and Sampson DM, Pilot study of optical coherence tomography angiography-derived microvascular metrics in hands and feet of healthy and diabetic people, Scientific Reports 2023; 13: 1122. doi: 10.1038/s41598-022-26871-y
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Fullarton R, Volz L, Dikaios N, Schulte R, Royle G, Evans PM, Seco J and Collins-Fekete CA, A likelihood-based particle imaging filter using prior information, Medical Physics 2023; 50(4): 2336-2353. doi: 10.1002/mp.16258
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Fokas AS, Dikaios N and Yortsos YC, An algebraic formula, deep learning and a novel SEIR-type model for the COVID-19 pandemic, Royal Society Open Science 2023; 10(8):230858. doi: 10.1098/rsos.230858
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Saeed MU, Dikaios N, Dastgir A, Ali G, Hamid M and Hajjej F, An automated deep learning approach for spine segmentation and vertebrae recognition using computed tomography images, Diagnostics 2023; 13(16): 2658. doi: 10.3390/diagnostics13162658
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Papachristou N, Kotronoulas G, Dikaios N, Allison SJ, Eleftherochorinou H, Rai T, Kunz H, Barnaghi P, Miaskowski C and Bamidis PD, Digital transformation of cancer care in the era of big data, artificial intelligence and data-driven interventions: Navigating the field, Seminars in Oncology 2023; 39(3):151433. doi: 10.1016/j.soncn.2023.151433
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Fokas AS, Can artificial intelligence reach human thought? PNAS Nexus 2023; 2(12): pgad409. doi: 10.1093/pnasnexus/pgad409
2022
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Fokas AS, Dikaios N, Tsiodras S and Kastis GA, Simple formulae, deep learning and elaborate modelling for the Covid-19 pandemic, Encyclopedia 2022; 2(2): 679-689. doi:10.3390/encyclopedia2020047
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Protonotarios NE, Fokas AS, Vrachliotis A, Marinakis V, Dikaios N and Kastis GA, Reconstruction of Preclinical PET Images via Chebyshev Polynomial Approximation of the Sinogram, Applied Sciences 2022; 12(7): 3335. doi: 10.3390/app12073335
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Vrachliotis A, Kastis GA, Protonotarios NE, Fokas AS, Nekolla SG, Anagnostopoulos CD, Costaridou L and Gaitanis A, Evaluation of the Spline Reconstruction Technique for Preclinical PET Imaging, Computer Methods and Programs in Biomedicine 2022;217: 106668. doi: 10.1016/j.cmpb.2022.106668
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Protonotarios NE, Katsamenis I, Sykiotis S, Dikaios N, Kastis GA, Chatziioannou SN, Metaxas M, Doulamis N and Doulamis A, A few-shot U-Net deep learning model for lung cancer lesion segmentation via PET/CT imaging, Biomedical Physics & Engineering Express 2022; 8: 025019. doi: 10.1088/2057-1976/ac53bd
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Protonotarios NE, Tzampazidou E, Kastis GA and Dikaios N, Discrete shearlets as a sparsifying transform in a low-rank plus sparse decomposition for undersampled (k, t)-space MR data, Journal of Imaging 2022; 8(2): 29. doi: 10.3390/jimaging8020029
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Protonotarios NE, Fokas AS, Dikaios N and Kastis GA, Sigmoid and beyond: algebraic activation functions for artificial neural networks based on solutions of a Riccati equation, IEEE IT Professional 2022; 24(5): 30-36. doi: 10.1109/MITP.2022.3204904.
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Dikaios N, Sparse-Input neural networks to differentiate 32 primary cancer types on the basis of somatic point mutations, Onco 2022; 2(2): 56-68. doi: 10.3390/onco2020005.
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Özsarı T, Alkan K and Kalimeris K, Dispersion estimates for the boundary integral operator associated with the fourth order Schrödinger equation posed on the half line, Mathematical Inequalities & Applications 2022;25(2): 551–571. doi: 10.7153/mia-2022-25-34
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Kalimeris K and Fokas AS, Extensions of the d’Alembert formulae for the half line and the finite interval obtained via the unified transform, IMA Journal of Applied Mathematics 2022;87(6): 1010. doi: 10.1093/imamat/hxac030
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Fokas AS, Integrable nonlinear evolution equations in three spatial dimensions, Proceedings of the Royal Society A 2022; 478:20220074. doi: 10.1098/rspa.2022.0074
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Fokas AS, Cao Y and He J, Multi-solitons, multi-breathers and multi-rational solutions of integrable extensions of the Kadomtsev-Petviashvili equation in three dimensions, Fractal and Fractional 2022;6(8): 425. doi: 10.3390/fractalfract6080425
2021
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Untracht GR, Matos RS, Dikaios N, Bapir M, Durrani AK, Butsabong T, Campagnolo P, Sampson DD, Heiss C and Sampson DM, OCTAVA: An open-source toolbox for quantitative analysis of optical coherence tomography angiography images, PLoS ONE 2021; 16(12): e0261052. doi: 10.1371/journal.pone.0261052
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Dikaios N, Protonotarios NE, Fokas AS and Kastis GA, Quantification of T1, T2 relaxation times from Magnetic Resonance Finger-printing radially undersampled data using analytical transformations, Magnetic Resonance Imaging 2021; 80: 81. doi: 10.1016/j.mri.2021.04.013.
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Fokas AS and Kastis GA, SARS-CoV-2: The Second Wave in Europe, Journal of Medical Internet Research 2021; 23(5): e22431. doi: 10.2196/22431.
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Fokas AS, Dikaios N and Kastis GA, Covid-19: predictive mathematical formulae for the number of deaths during lockdown and possible scenarios for the post-lockdown period, Proceedings of the Royal Society A 2021; 477: 20200745. doi:10.1098/rspa.2020.0745.
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Lazos D, Collins-Fekete C-A, Bober M, Evans P and Dikaios N, Machine learning for proton path tracking in proton computed tomography, Physics in Medicine and Biology 2021; 66(10): 105013. doi: 10.1088/1361-6560/abf1fd.
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Dikaios N, Deep learning magnetic resonance spectroscopy fingerprints of brain tumours using quantum mechanically synthesised data, NMR in Biomedicine 2021; 34(4): e4479.doi: 10.1002/nbm.4479.
2020
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Fokas AS, Dikaios N and Kastis GA, Mathematical models and deep learning for predicting the number of individuals reported to be infected with SARS-CoV-2, Journal of The Royal Society Interface 2020;17(169): 20200494. doi: 10.1098/rsif.2020.0494.
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Kalimeris K and Fokas AS, The Modified Helmholtz equation on a regular hexagon—the symmetric Dirichlet problem, Axioms. 2020; 9(3): 89. doi: 10.3390/axioms9030089.
2019
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Giannakopoulou CE, Sotiriou A, Dettoraki M, Yang M, Perlikos F, Toumpanakis D, Prezerakos G, Koutsourelakis I, Kastis GA, Vassilakopoulou V, Mizi E, Greer JJ and Vassilakopoulos T, Interleukin-10 affects the control of breathing, American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 2019; 317(1):R190. doi:10.1152/ajpregu.00065.2019.
2018
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Protonotarios NE, Fokas AS, Kostarelos K and Kastis GA, The attenuated spline reconstruction technique for single photon emission computed tomography, Journal of The Royal Society Interface 2018; 15(148): 20180509. doi: 10.1098/rsif.2018.0509.
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Tsoukalas C, Psimadas D, Kastis GA, Koutoulides V, Harris AL, Paravatou-Petsotas M, Karageorgou M, Furenlid LR, Moulopoulos LA, Stamopoulos D and Bouziotis P, A novel metal-based imaging probe for targeted dual-modality SPECT/MR imaging of angiogenesis, Frontiers in Chemistry 2018;6: 224. doi: 10.3389/fchem.2018.00224.
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Papachristou M, Kastis GA, Stavrou PZ, Xanthopoulos S, Furenlid LR, Datseris IE and Bouziotis P, Radiolabelled Methotrexate as a diagnostic agent of inflammatory target sites in patients with rheumatoid arthritis, Molecular Medicine Reports 2018;17(2): 2442. doi:10.3892/mmr.2017.8166.
2017
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Gaitanis A, Kastis GA, Vlastou E, Bouziotis P, Verginis P and Anagnostopoulos CD, Investigation of image reconstruction parameters of the Mediso NanoScan PC small-animal PET/CT scanner for two different positron emitters under NEMA NU 4-2008 standards, Molecular Imaging and Biology 2017;19(4): 550. doi: 10.1007/s11307-016-1035-9.
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Protonotarios NE, Spyrou GM and Kastis GA, Automatic contour determination of multi-object nuclear medicine images, Computers in Biology and Medicine 2017;85: 43. doi:10.1016/j.compbiomed.2017.04.010.
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Bountis T, Fokas AS and Psarakis EZ, Fractal analysis of tree paintings by Piet Mondrian (1872-1944), International Journal of Arts and Technology 2017;10(1): 27. doi: 10.1504/IJART.2017.083902.
2015
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Kastis GA, Gaitanis A, Samartzis AP and Fokas AS, The SRT reconstruction algorithm for semiquantification in PET imaging, Medical Physics 2015;42(10): 5970. doi:10.1118/1.4931409.
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Lenells J and Fokas AS, The nonlinear Schrödinger equation with t-periodic data: I. Exact results, Proceedings of the Royal Society A 2015; 471(2181):20140925. doi:10.1098/rspa.2014.0925.
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Lenells J and Fokas AS, The nonlinear Schrödinger equation with t-periodic data: II. Perturbative results, Proceedings of the Royal Society A 2015;471(2181): 20140926. doi: 10.1098/rspa.2014.0926.
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Hashemzadeh P, Fokas AS and Smitheman SA, A numerical technique for linear elliptic partial differential equations in polygonal domains, Proceedings of the Royal Society A 2015;471(2175): 20140747. doi: 10.1098/rspa.2014.0747.
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Dassios G and Fokas AS, Characterization of an acoustic spherical cloak, Inverse Problems 2015;31(3): 035001. doi: 10.1088/0266-5611/31/3/035001.
2014
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Kastis GA, Kyriakopoulou D, Gaitanis A, Fernandez Y, Hutton BF and Fokas AS, Evaluation of the Spline Reconstruction Technique for PET, Medical Physics 2014;41(4): 042501. doi: 10.1118/1.4867862.
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Fokas AS and Kalimeris K, Eigenvalues for the Laplace operator in the interior of an equilateral triangle, Computational Methods and Function Theory 2014;14(1): 1. doi:10.1007/s40315-013-0038-7.
2013
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Fokas AS and Glasser ML, The Laplace equation in the exterior of the Hankel contour and novel identities for hypergeometric functions. Proceedings of the Royal Society A 2013;469(2157): 20130081. doi: 10.1098/rspa.2013.0081.
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Kastis GA, Toumpanakis D, Loverdos K, Anaplioti A, Samartzis A, Argyriou P, Loudos G, Karavana V, Tzouda V, Datseris I, Rontogianni D, Roussos C, Theocharis SE, and Vassilakopoulos T, Dose- and time-dependent effects of lipopolysaccharide on technetium-99-m-labeled diethylene-triamine pentaacetatic acid clearance, respiratory system mechanics and pulmonary inflammation, Experimental biology and medicine (Maywood) 2013;238(2): 209. doi: 10.1258/ebm.2012.012313.
2012
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Fokas AS and Spence EA, Synthesis, as opposed to separation, of variables, SIAM Review 2012;54(2): 291. doi: 10.1137/100809647.
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Fokas AS and Lennels J, The unified method: I. Nonlinearizable problems on the half-line, Journal of Physics A: Mathematical and Theoretical 2012; 45(19): 195201. doi: 10.1088/1751-8113/45/19/195201.
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Lennels J and Fokas AS, The unified method: II. NLS on the half-line with t-periodic boundary conditions, Journal of Physics A: Mathematical and Theoretical 2012;45(19):195202. doi: 10.1088/1751-8113/45/19/195202.
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Lennels J and Fokas AS, The unified method: III. Nonlinearizable problems on the interval, Journal of Physics A: Mathematical and Theoretical 2012;45(19): 195203. doi: 10.1088/1751-8113/45/19/195203.
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Fokas AS and Nachbin A, Water waves over a variable bottom: A non-local formulation and conformal mappings, Journal of Fluid Mechanics 2012;695: 288–309. doi: 10.1017/jfm.2012.19.
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Fokas AS and Kurylev Y, Electro-magneto-encephalography for the three-shell model: Minimal L 2-norm in spherical geometry, Inverse Problems 2012;28(3): 035010. doi: 10.1088/0266-5611/28/3/035010.
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Crowdy DG, Fokas AS and Green CC, Conformal mappings to multiply connected polycircular arc domains, Computational Methods and Function Theory 2012;11(2): 685. doi: 10.1007/bf03321882.
Κεφάλαια σε Βιβλία
2024
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Protonotarios ΝΕ, Marinakis V, Dikaios N and Kastis GA, “Chebyshev Polynomials of the First Kind and Applications in Tomography”, chapter in Mathematical Analysis, Differential Equations and Applications, Rassias TM, Pardalos M, eds, pp. 711-730, 2024. doi:10.1142/9789811267048_0024
2021
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Protonotarios ΝΕ, Kastis GA, Dikaios N and Fokas AS, “Piecewise Polynomial Inversion of the Radon Transform in Three Space Dimensions via Plane Integration and Applications in Positron Emission Tomography” chapter in Nonlinear Analysis, Differential Equations, and Applications, Rassias TM, ed, Springer, pp. 381-396, 2021. doi: 10.1007/978-3-030-72563-1_17
2019
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Protonotarios NE, Kastis GA and Fokas AS, “A new approach for the inversion of the attenuated Radon transform” chapter in Mathematical Analysis and Applications, Rassias TM, Pardalos P, eds. Springer Optimization and Its Applications, 2019; 154: Springer, Cham, pp. 433–457. doi: 10.1007/978-3-030-31339-5_16.
2016
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Fokas AS, “The unified transform in two dimensions” chapter in Contemporary Mathematics. da Fonseca CM, Van Huynh D, Kirkland S, Tuan VK, eds, 658, AMS, pp. 167-186, 2016. doi: 10.1090/conm/658/13131.
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Fokas AS and Kalimeris K, “A novel non-local formulation of water waves” chapter in Lectures on the Theory of Water Waves. Bridges T, Groves M, Nicholls M, eds, Cambridge University Press, pp 63–77, 2016. doi: 10.1017/CBO9781316411155.006.
2015
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Fokas AS and Kastis GA, “Mathematical Methods in PET and SPECT Imaging” chapter in Handbook of Mathematical Methods of Imaging. Scherzer O, ed, Springer, pp. 903-936,2015. doi: 10.1007/978-1-4939-0790-8_45.
Δημοσιεύσεις Συνεδρίων με Πλήρη Πρακτικά Εργασιών
2024
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Taylor S, Gilje Jaatun M, Bernsmed K, Androutsos C, Frey D, Favrin S, Rodrigues J, Milojević D, Karras D, Siachos I, Epiphaniou G, Moukafih N, Maple C, Messinis S, Rallis I, Protonotarios NE, Matragkas N, Delong R, A way forward for the MDCG 2019-16 medical device security guidance, Proceedings of the 17th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA), 2024; pp. 593-599. doi: 10.1145/3652037.3663894
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Messinis S, Protonotarios NE, Arapidis E, Doulamis N, Client selection and resource allocation via graph neural networks for efficient federated learning in healthcare environments, Proceedings of the 17th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA), 2024; pp. 606-612. doi: 10.1145/3652037.3663906
2023
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Cao Y, Fokas AS and He J, High-Order Localized Wave Solutions of the New (3 1)-Dimensional Kadomtsev-Petviashvili Equation, chapter in International Conference on Complex Systems and Applications Network Summer School. Bountis T, Vallianatos F, Provata A, Kugiumtzis D, Kominis Y, eds, Cham: Springer International Publishing, p.p.265-273, 2023. doi: 10.1007/978-3-031-37404-3_18
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Protonotarios NE, Kalimeris K, Kastis GA, Fokas on medical imaging: Analytic reconstructions for emission tomography, chapter in International Conference on Complex Systems and Applications Network Summer School. Bountis T, Vallianatos F, Provata A, Kugiumtzis D, Kominis Y, eds, Cham: Springer International Publishing, p.p. 169-187,2023. doi: 10.1007/978-3-031-37404-3_11
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Fokas AS, Kalimeris K, Lenells J, A Novel Difference-Integral Equation Satisfied Asymptotically by the Riemann Zeta Function, chapter in International Conference on Complex Systems and Applications Network Summer School. Bountis T, Vallianatos F, Provata A, Kugiumtzis D, Kominis Y, eds, Cham: Springer International Publishing, pp.319-332, 2023. doi: 10.1007/978-3-031-37404-3_22
2019
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Protonotarios N, Charalambopoulos A, Kastis GA, Kacperski K and Fokas AS, A spline approach to parallel-hole collimator deblurring for aSRT-reconstructed SPECT images, IEEE 19th International Conference on Bioinformatics and Bioengineering (BIBE), 2019; 326–333. doi: 10.1109/BIBE.2019.00065.
2016
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Protonotarios NE, Fokas AS, Gaitanis A and Kastis GA, aSRT: A new analytic reconstruction algorithm for SPECT, 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD), 2016; 1–6. doi: 10.1109/NSSMIC.2016.8069451.
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Protonotarios NE, Spyrou GM and Kastis GA, Cumulative sums for edge determination of a single object in PET and SPECT images, 5th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare 2016), 2016, J Phys: Conf Ser; 738(15): 012010. doi: 10.1088/1742-6596/738/1/012010.
2015
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Vayenas CG, Fokas AS and Grigoriou D, Gravitational mass and Newton’s universal gravitational law under relativistic conditions, 4th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare 2015), 2015; J Phys: Conf Ser; 633: 012033. doi: 10.1088/1742-6596/633/1/012033.
2014
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Fokas AS and Kastis GA, Boundary value problems and medical imaging, 2 nd International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare2013), 2014; J Phys: Conf Ser; 490(1): 012017. doi: 10.1088/1742-6596/490/1/012017.
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Kastis GA, Kyriakopoulou D and Fokas AS, An analytic reconstruction method for PET based on cubic splines, 2 nd International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare2013), 2014; J Phys: Conf Ser; 490(1): 012018. doi: 10.1088/1742-6596/490/1/012128.
2011
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Fokas AS and Lenells J, Perturbative and exact results on the neumann value for the nonlinear Schrödinger on the half-line, Physics and Mathematics of Nonlinear Phenomena 2013 (PMNP 2013), 2014; J Phys: Conf Ser; 482(1): 012015. doi: 10.1088/1742-6596/482/1/012015.
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Kastis GA, Gaitanis A, Skouras T and Fokas AS, Evaluation of a spline reconstruction technique for SPECT: Comparison with FBP and OSEM, 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2011), 2011; 3950–3954. doi:3950-3954. doi: 10.1109/NSSMIC.2011.6153751.
2010
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Kastis GA, Gaitanis A, Fernandez Y, Kontaxakis G and Fokas AS, Evaluation of a spline reconstruction technique: Comparison with FBP, MLEM and OSEM, 2010 IEEE Nuclear Science Symposium, Medical Imaging Conference (NSS/MIC 2010) and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors (RTSD 2010), 2011; 3282–3287. doi: 10.1109/NSSMIC.2010.5874412.

