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J

John B. Theocharis

auth

36H-index
133Paper Count
4.9KCitation Count
Published Papers 49
Publication Date
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QuAVA: A privacy-aware architecture for conversational desktop Content Retrieval systems
errcomputer speech & language
IF0
err2026-02-02
err0
errOAAI
errNikolaos Malamas; Andreas L. Symeonidis; John B. Theocharis
errShare
errSave
A Dynamic Hypergraph-Based Encoder–Decoder Risk Model for Longitudinal Predictions of Knee Osteoarthritis Progression
errMachine Learning and Knowledge Extraction 2025, Vol. 7, Page 94
IF6
err2025-09-02
err0
errOAAI
errJohn B. Theocharis; Christos G. Chadoulos; Andreas L. Symeonidis
errShare
errSave
Knee-cartilage segmentation from MR images using Multi-view Hypergraph Convolutional Neural Networks
errApplied Intelligence
IF3.5
err2025-08-28
err0
errOAAI
errChristos Chadoulos; John Theocharis; Andreas Symeonidis; Serafeim Moustakidis
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errSave
A Novel Approach Based on Hypergraph Convolutional Neural Networks for Cartilage Shape Description and Longitudinal Prediction of Knee Osteoarthritis Progression
errmachine learning and knowledge extraction
IF0
err2025-07-26
err0
errOAAI
errJohn B. Theocharis; Christos G. Chadoulos; Andreas L. Symeonidis
errShare
errSave
Dense Multi-Scale Graph Convolutional Network for Knee Joint Cartilage Segmentation
errBIOENGINEERING-BASEL
IF3.7
err2024-03-14
err4
errOAAI
errChadoulos, Christos; Tsaopoulos, Dimitrios; Symeonidis, Andreas; Moustakidis, Serafeim; Theocharis, John
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errSave
A novel multi-atlas segmentation approach under the semi-supervised learning framework: Application to knee cartilage segmentation
errCOMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
IF4.8
err2022-12-01
err3
PREAI
errChadoulos, Christos G.; Tsaopoulos, Dimitrios E.; Moustakidis, Serafeim; Tsakiridis, Nikolaos L.; Theocharis, John B.
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errSave
Using autoencoders to compress soil VNIR-SWIR spectra for more robust prediction of soil properties
errGEODERMA
IF6.6
err2021-07-01
err27
PREAI
errTsimpouris, Evangelos; Tsakiridis, Nikolaos L.; Theocharis, John B.
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errSave
Improving the predictions of soil properties from VNIR-SWIR spectra in an unlabeled region using semi-supervised and active learning
errGEODERMA
IF6.6
err2021-04-01
err12
PREAI
errTsakiridis, Nikolaos L.; Theocharis, John B.; Symeonidis, Andreas L.; Zalidis, George C.
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errSave
An integrated methodology using open soil spectral libraries and Earth Observation data for soil organic carbon estimations in support of soil-related SDGs
errREMOTE SENSING OF ENVIRONMENT
IF11.4
err2020-07-01
err45
PREAI
errTziolas, Nikolaos; Tsakiridis, Nikolaos; Ogen, Yaron; Kalopesa, Eleni; Ben-Dor, Eyal; Theocharis, John; Zalidis, George
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errSave
Simultaneous prediction of soil properties from VNIR-SWIR spectra using a localized multi-channel 1-D convolutional neural network
errGEODERMA
IF6.6
err2020-05-01
err92
PREAI
errTsakiridis, Nikolaos L.; Keramaris, Konstantinos D.; Theocharis, John B.; Zalidis, George C.
errShare
errSave
A three-level Multiple-Kernel Learning approach for soil spectral analysis
errNEUROCOMPUTING
IF6.5
err2020-05-01
err12
PREAI
errTsakiridis, Nikolaos L.; Chadoulos, Christos G.; Theocharis, John B.; Ben-Dor, Eyal; Zalidis, George C.
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errSave
An evolutionary fuzzy rule-based system applied to the prediction of soil organic carbon from soil spectral libraries
errAPPLIED SOFT COMPUTING
IF6.6
err2019-08-01
err27
PREAI
errTsakiridis, Nikolaos L.; Theocharis, John B.; Panagos, Panos; Zalidis, George C.
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errSave
Using interpretable fuzzy rule-based models for the estimation of soil organic carbon from VNIR/SWIR spectra and soil texture
errCHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
IF3.8
err2019-06-01
err18
PREAI
errTsakiridis, Nikolaos L.; Theocharis, John B.; Ben-Dor, Eyal; Zalidis, George C.
errShare
errSave
A memory-based learning approach utilizing combined spectral sources and geographical proximity for improved VIS-NIR-SWIR soil properties estimation
errGEODERMA
IF6.6
err2019-04-01
err47
PREAI
errTziolas, Nikolaos; Tsakiridis, Nikolaos; Ben-Dor, Eyal; Theocharis, John; Zalidis, George
errShare
errSave
A genetic algorithm-based stacking algorithm for predicting soil organic matter from vis-NIR spectral data
errEUROPEAN JOURNAL OF SOIL SCIENCE
IF3.8
err2019-03-04
err45
PREAI
errTsakiridis, Nikolaos L.; Tziolas, Nikolaos V.; Theocharis, John B.; Zalidis, George C.
errShare
errSave
Reflectance Spectroscopy (Vis-NIR) for Assessing Soil Heavy Metals Concentrations Determined by two Different Analytical Protocols, Based on ISO 11466 and ISO 14869-1
errWATER AIR AND SOIL POLLUTION
IF3
err2017-11-04
err19
PREAI
errAngelopoulou, Theodora; Dimitrakos, Agathoklis; Terzopoulou, Evangelia; Zalidis, George; Theocharis, John; Stafilov, Trajce; Zouboulis, Anastasios
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errSave
DECO3RUM: A Differential Evolution learning approach for generating compact Mamdani fuzzy rule-based models
errEXPERT SYSTEMS WITH APPLICATIONS
IF7.5
err2017-10-01
err26
PREAI
errTsakiridis, Nikolaos L.; Theocharis, John B.; Zalidis, George C.
errShare
errSave
DECO3R: A Differential Evolution-based algorithm for generating compact Fuzzy Rule-based Classification Systems
errKNOWLEDGE-BASED SYSTEMS
IF7.6
err2016-08-01
err17
PREAI
errTsakiridis, Nikolaos L.; Theocharis, John B.; Zalidis, George C.
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errSave
Classification of Remotely Sensed Images Using the GeneSIS Fuzzy Segmentation Algorithm
errIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
IF8.6
err2015-10-01
err12
PREAI
errMylonas, Stelios K.; Stavrakoudis, Dimitris G.; Theocharis, John B.; Mastorocostas, Paris A.
errShare
errSave
GeneSIS: A GA-based fuzzy segmentation algorithm for remote sensing images
errKNOWLEDGE-BASED SYSTEMS
IF7.6
err2013-12-01
err28
PREAI
errMylonas, Stelios K.; Stavrakoudis, Dimitris G.; Theocharis, John B.
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errSave

Research Directions

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Co-authors
Cooperation Journals
P
Panos Panagos
H-index: 83 · Papers: 390
A
Anastasios Zouboulis
H-index: 65 · Papers: 407
A
Anastasios G. Bakirtzis
H-index: 52 · Papers: 224
G
George Vachtsevanos
H-index: 49 · Papers: 476
E
Eyal Ben‐Dor
H-index: 48 · Papers: 301
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