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Nicholas Ε. Protonotarios

Observed names: Nicholas E Protonotarios, Nicholas E. Protonotarios, Nicholas Protonotarios, Protonotarios, Nicholas E.
Observed institutions: National Technical University of Athens, National Centre of Scientific Research "Demokritos", Academy of Athens, University of Cambridge, Institute of Communication and Computer Systems, Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety
ORCID: 0000-0002-7701-5644
Observed ORCID: 0000-0002-7701-5644
OpenAlex ID: A5046775026
Enhancing Internet of Medical Things security with artificial intelligence: A comprehensive review
2024 · Sotirios Messinis, Nikos Temenos, et al. · Computers in Biology and Medicine · 142
A few-shot U-Net deep learning model for lung cancer lesion segmentation via PET/CT imaging
2022 · Nicholas E Protonotarios, Iason Katsamenis, et al. · Biomedical Physics & Engineering Express · 61
The attenuated spline reconstruction technique for single photon emission computed tomography
2018 · Nicholas E. Protonotarios, Athanassios S. Fokas, et al. · Journal of The Royal Society Interface · 23
Differentially Private Client Selection and Resource Allocation in Federated Learning for Medical Applications Using Graph Neural Networks
2024 · Sotirios C. Messinis, Nicholas E. Protonotarios, et al. · Sensors · 12
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A Way Forward for the MDCG 2019-16 Medical Device Security Guidance
2024 · Steve Taylor, Martin Gilje Jaatun, et al. · International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) · 11
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Design Principles and Applications of Fluorescent Kinase Inhibitors for Simultaneous Cancer Bioimaging and Therapy
2024 · Ab Majeed Ganai, Eirinaios I. Vrettos, et al. · Cancers · 9
Chebyshev Interpolation Using Almost Equally Spaced Points and Applications in Emission Tomography
2023 · Vangelis Marinakis, Athanassios S. Fokas, et al. · Mathematics · 7
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Quantification of T1, T2 relaxation times from Magnetic Resonance Fingerprinting radially undersampled data using analytical transformations
2021 · Nikolaos Dikaios, Nicholas E. Protonotarios, et al. · Magnetic Resonance Imaging · 7
Quantum neural networks meet federated learning for DNA mutation prediction
2025 · Sotirios Messinis, Ioannis Rallis, et al. · Computational and Structural Biotechnology Journal · 6
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Sigmoid and Beyond: Algebraic Activation Functions for Artificial Neural Networks Based on Solutions of a Riccati Equation
2022 · Nicholas E. Protonotarios, Athanassios S. Fokas, et al. · IT Professional · 6
Reconstruction of Preclinical PET Images via Chebyshev Polynomial Approximation of the Sinogram
2022 · Nicholas E. Protonotarios, Athanassios S. Fokas, et al. · Applied Sciences · 6
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Automatic cumulative sums contour detection of FBP-reconstructed multi-object nuclear medicine images
2017 · Nicholas E. Protonotarios, George M. Spyrou, et al. · Computers in Biology and Medicine · 6
Discrete Shearlets as a Sparsifying Transform in Low-Rank Plus Sparse Decomposition for Undersampled (k, t)-Space MR Data
2022 · Nicholas E. Protonotarios, Evangelia Tzampazidou, et al. · Journal of Imaging · 5
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Roads Digital Twin: Predictive Situational Awareness Using 360$^{\circ }$ Video Streaming and Graph Neural Networks
2024 · Sotirios Messinis, Oussama El Marai, et al. · IEEE Transactions on Vehicular Technology · 4
Client Selection and Resource Allocation via Graph Neural Networks for Efficient Federated Learning in Healthcare Environments
2024 · Sotiriοs C. Messinis, Nicholas Ε. Protonotarios, et al. · International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) · 4
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A New Approach for the Inversion of the Attenuated Radon Transform
2019 · Nicholas E. Protonotarios, George A. Kastis, et al. · Springer optimization and its applications · 4
Motion-Compensated PET Image Reconstruction via Separable Parabolic Surrogates
2022 · Nicholas E. Protonotarios, George A. Kastis, et al. · Mathematics · 3
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Evaluation of the spline reconstruction technique for preclinical PET imaging
2022 · Alexandros Vrachliotis, George A. Kastis, et al. · Computer Methods and Programs in Biomedicine · 3
Inversion of the attenuated radon transform using cubic splines
2016 · Nicholas E. Protonotarios, Athanassios S. Fokas, et al. · Physica Medica · 3
aSRT: A new analytic reconstruction algorithm for SPECT
2016 · Nicholas E. Protonotarios, Athanassios S. Fokas, et al. · IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) · 2
Cumulative sums for edge determination of a single object in PET and SPECT images
2016 · Nicholas E Protonotarios, George M Spyrou, et al. · Journal of Physics Conference Series · 2
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Augmented Total Variation Regularization in Radon‐Type Inverse Problems
2025 · Nicholas E. Protonotarios, Nikolaos Dikaios, et al. · Studies in Applied Mathematics · 1
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Lightweight machine learning for privacy-preserving and secure networked medical devices: The SEPTON project use cases
2023 · Sotiris Messinis, Nicholas Protonotarios, et al. · International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) · 1
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Fokas on Medical Imaging: Analytic Reconstructions for Emission Tomography
2023 · Nicholas E. Protonotarios, Konstantinos Kalimeris, et al. · Springer proceedings in complexity · 1
Piecewise Polynomial Inversion of the Radon Transform in Three Space Dimensions via Plane Integration and Applications in Positron Emission Tomography
2021 · Nicholas E. Protonotarios, George A. Kastis, et al. · Springer optimization and its applications · 1
Works count: 37
Citation count: 330
H-index: 7
I10-index: 5
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