Works by Economou, Polychronis

Results: 29

Unraveling Meteorological Dynamics: A Two-Level Clustering Algorithm for Time Series Pattern Recognition with Missing Data Handling.

Published in:

Stats, 2025, v. 8, n. 2, p. 36, doi. 10.3390/stats8020036

By:

Skamnia, Ekaterini;
Bekri, Eleni S.;
Economou, Polychronis

Publication type:

Article

Pragmatic questionnaire-based evaluation of auditory function in individuals with major neurocognitive disorders and hearing loss in diverse contexts.

Published in:

Frontiers in Aging Neuroscience, 2025, p. 1, doi. 10.3389/fnagi.2025.1504358

By:

Alexopoulos, Panagiotis;
Demertzis, Antonios Alexandros;
Biris, Panagiotis;
Economou, Polychronis;
Frison, Eric;
Dawes, Piers;
Leroi, Iracema

Publication type:

Article

A Novel Methodology to Correct Chlorophyll-a Concentrations from Satellite Data and Assess Credible Phenological Patterns.

Published in:

Remote Sensing, 2025, v. 17, n. 7, p. 1156, doi. 10.3390/rs17071156

By:

Biliani, Irene;
Skamnia, Ekaterini;
Economou, Polychronis;
Zacharias, Ierotheos

Publication type:

Article

Prevalence of Depressive Symptoms in the Whole Spectrum of Cognitive Aging: Findings from the HELIAD Community Study.

Published in:

Alzheimer's & Dementia: The Journal of the Alzheimer's Association, 2023, v. 19, p. 1, doi. 10.1002/alz.074261

By:

Georgiou, Eliza;
Politis, Antonis;
Yannakoulia, Mary;
Dardiotis, Efthimios;
Hadjigeorgiou, Georgios M.;
Kosmidis, Mary;
Sakka, Paraskevi;
Economou, Polychronis;
Scarmeas, Nikolaos;
Alexopoulos, Panagiotis

Publication type:

Article

On the generalized cumulative residual entropy weighted distributions.

Published in:

Communications in Statistics: Theory & Methods, 2017, v. 46, n. 22, p. 10914, doi. 10.1080/03610926.2016.1252402

By:

Psarrakos, Georgios;
Economou, Polychronis

Publication type:

Article

Correction to: Cognitive function in amyotrophic lateral sclerosis: a cross‑sectional and prospective pragmatic clinical study with review of the literature.

Published in:

2024

By:

Katerelos, Adamantios;
Alexopoulos, Panagiotis;
Economou, Polychronis;
Polychronopoulos, ·Panagiotis;
Chroni, Elisabeth

Publication type:

Correction Notice

Cognitive function in amyotrophic lateral sclerosis: a cross-sectional and prospective pragmatic clinical study with review of the literature.

Published in:

Neurological Sciences, 2024, v. 45, n. 5, p. 2075, doi. 10.1007/s10072-023-07262-1

By:

Katerelos, Adamantios;
Alexopoulos, Panagiotis;
Economou, Polychronis;
Polychronopoulos, Panagiotis;
Chroni, Elisabeth

Publication type:

Article

EXTREME VALUE DISTRIBUTIONS FOR BIASED SAMPLES.

Published in:

Probability in the Engineering & Informational Sciences, 2015, v. 29, n. 2, p. 277, doi. 10.1017/S0269964814000345

By:

Tzavelas, George;
Economou, Polychronis

Publication type:

Article

AI‐Assisted Literature Review: Integrating Visualization and Geometric Features for Insightful Analysis.

Published in:

WIREs: Data Mining & Knowledge Discovery, 2025, v. 15, n. 2, p. 1, doi. 10.1002/widm.70016

By:

Papageorgiou, Grigorios;
Skamnia, Ekaterini;
Economou, Polychronis

Publication type:

Article

Two Types of Size-Biased Samples When Modeling Extreme Phenomena.

Published in:

Stats, 2024, v. 7, n. 4, p. 1392, doi. 10.3390/stats7040081

By:

Batsidis, Apostolos;
Tzavelas, George;
Economou, Polychronis

Publication type:

Article

The potential of depressive symptoms to identify cognitive impairment in ageing.

Published in:

European Journal of Ageing, 2025, v. 22, n. 1, p. 1, doi. 10.1007/s10433-025-00837-1

By:

Alexopoulos, Panagiotis;
Bountoulis, Christos;
Katirtzoglou, Everina;
Kosmidis, Mary H.;
Siarkos, Kostas;
Yannakoulia, Mary;
Dardiotis, Efthimios;
Skondra, Maria;
Hadjigeorgiou, Georgios;
Perneczky, Robert;
Sakka, Paraskevi;
Georgiou, Eleni-Zacharoula;
Charalampopoulou, Μarina;
Felemegkas, Panagiotis;
Leroi, Iracema;
Batsidis, Apostolos;
Perna, Laura;
Politis, Antonios;
Scarmeas, Nikolaos;
Economou, Polychronis

Publication type:

Article

Validation of the test for finding word retrieval deficits (WoFi) in detecting Alzheimer's disease in a naturalistic clinical setting.

Published in:

European Journal of Ageing, 2023, v. 20, n. 1, p. 1, doi. 10.1007/s10433-023-00772-z

By:

Georgiou, Eleni-Zacharoula;
Skondra, Maria;
Charalampopoulou, Marina;
Felemegkas, Panagiotis;
Pachi, Asimina;
Stafylidou, Georgia;
Papazachariou, Dimitrios;
Perneczky, Robert;
Thomopoulos, Vasileios;
Politis, Antonios;
Leroi, Iracema;
Economou, Polychronis;
Alexopoulos, Panagiotis

Publication type:

Article

Monitoring defects on products' surface by incorporating scan statistics into process monitoring procedures.

Published in:

Quality & Reliability Engineering International, 2025, v. 41, n. 1, p. 293, doi. 10.1002/qre.3652

By:

Bersimis, Sotirios;
Sachlas, Athanasios;
Economou, Polychronis

Publication type:

Article

A method for optimizing text preprocessing and text classification using multiple cycles of learning with an application on shipbrokers emails.

Published in:

Journal of Applied Statistics, 2024, v. 51, n. 13, p. 2592, doi. 10.1080/02664763.2024.2307535

By:

Papageorgiou, Grigorios;
Economou, Polychronis;
Bersimis, Sotirios

Publication type:

Article

Statistical testing of availability for mining technological systems with air quality constraints.

Published in:

Applied Stochastic Models in Business & Industry, 2018, v. 34, n. 3, p. 278, doi. 10.1002/asmb.2337

By:

Stehlík, Milan;
Economou, Polychronis;
Papić, Ljubiša;
Aronov, Joseph;
Nicolis, Orietta;
Antoch, Jaromír;
Cézová, Eliška;
Kiseľák, Jozef

Publication type:

Article

On Small Samples Testing for Frailty Through Homogeneity Test.

Published in:

Communications in Statistics: Simulation & Computation, 2015, v. 44, n. 1, p. 40, doi. 10.1080/03610918.2013.763982

By:

Economou, Polychronis;
Stehlík, Milan

Publication type:

Article

Cerebrospinal Fluid BACE1 Activity and sAβPPβ as Biomarker Candidates of Alzheimer’s Disease.

Published in:

Dementia & Geriatric Cognitive Disorders, 2018, v. 45, n. 3/4, p. 152, doi. 10.1159/000488481

By:

Assimakopoulos, Konstantinos;
Gourzis, Philippos;
Alexopoulos, Panagiotis;
Thierjung, Nathalie;
Grimmer, Timo;
Ortner, Marion;
Economou, Polychronis;
Politis, Antonios;
Perneczky, Robert

Publication type:

Article

Reassessing Existing Reservoir Supply Capacity and Management Resilience under Climate Change and Sediment Deposition.

Published in:

Water (20734441), 2021, v. 13, n. 13, p. 1819, doi. 10.3390/w13131819

By:

Bekri, Eleni S.;
Economou, Polychronis;
Yannopoulos, Panayotis C.;
Demetracopoulos, Alexander C.

Publication type:

Article

Pilot study of the Greek Interventional Geriatric Initiative to Prevent Cognitive Impairment and Disability in individuals with subjective cognitive decline: paving the way towards brain health clinics in Greece.

Published in:

Frontiers in Psychiatry, 2025, p. 1, doi. 10.3389/fpsyt.2025.1514227

By:

Alexopoulos, Panagiotis;
Felemegkas, Panagiotis;
Arampatzi, Xanthi;
Billis, Evdokia;
Dimakopoulou, Eleni;
Economou, Polychronis;
Dimakopoulos, George A.;
Exarchos, Themis P.;
Frounta, Maria;
Giannakopoulou, Parthenia;
Kalaitzi, Kalliopi;
Koula, Maria - Lamprini;
Nastou, Eftyhia;
Skondra, Maria;
Sakka, Paraskevi;
Kalligerou, Faidra;
Skarmeas, Nikolaos;
Tsatali, Marianna;
Krommyda, Magdalini;
Karala, Maria

Publication type:

Article

Berkson's paradox and weighted distributions: An application to Alzheimer's disease.

Published in:

Biometrical Journal, 2020, v. 62, n. 1, p. 238, doi. 10.1002/bimj.201900046

By:

Economou, Polychronis;
Batsidis, Apostolos;
Tzavelas, George;
Alexopoulos, Panagiotis

Publication type:

Article

Teaching Geology in Higher Education Institutions under COVID-19 Conditions.

Published in:

Geosciences (2076-3263), 2023, v. 13, n. 4, p. 96, doi. 10.3390/geosciences13040096

By:

Giotopoulos, Georgios;
Papoulis, Dimitrios;
Koukouvelas, Ioannis;
Skopeliti, Irini;
Economou, Polychronis;
Gianni, Eleni

Publication type:

Article

Assessing Ships' Environmental Performance Using Machine Learning.

Published in:

Energies (19961073), 2023, v. 16, n. 6, p. 2544, doi. 10.3390/en16062544

By:

Skarlatos, Kyriakos;
Fousteris, Andreas;
Georgakellos, Dimitrios;
Economou, Polychronis;
Bersimis, Sotirios

Publication type:

Article

Projecting Annual Rainfall Timeseries Using Machine Learning Techniques.

Published in:

Energies (19961073), 2023, v. 16, n. 3, p. 1459, doi. 10.3390/en16031459

By:

Skarlatos, Kyriakos;
Bekri, Eleni S.;
Georgakellos, Dimitrios;
Economou, Polychronis;
Bersimis, Sotirios

Publication type:

Article

Tweedie, Bar-Lev, and Enis class of leptokurtic distributions as a candidate for modeling real data.

Published in:

Communications in Statistics: Case Studies & Data Analysis, 2021, v. 7, n. 2, p. 229, doi. 10.1080/23737484.2021.1880988

By:

Bar-Lev, Shaul K.;
Batsidis, Apostolos;
Economou, Polychronis

Publication type:

Article

A metafrontier production function for a Bayesian frontier model: A cross-country comparison.

Published in:

Communications in Statistics: Case Studies & Data Analysis, 2021, v. 7, n. 1, p. 88, doi. 10.1080/23737484.2020.1829177

By:

Economou, Polychronis;
Malefaki, Sonia;
Kounetas, Konstantinos

Publication type:

Article

Evaluation of the OECD's prediction algorithm for the annual GDP growth rate.

Published in:

Communications in Statistics: Case Studies & Data Analysis, 2021, v. 7, n. 1, p. 67, doi. 10.1080/23737484.2020.1805818

By:

Economou, Polychronis;
Batsidis, Apostolos;
Kounetas, Konstantinos

Publication type:

Article

Recruitment and survival time under mean residual lifetime bias sampling.

Published in:

Statistics, 2020, v. 54, n. 4, p. 885, doi. 10.1080/02331888.2020.1804905

By:

Economou, Polychronis;
Psarrakos, Georgios;
Toomaj, Abdolsaeed

Publication type:

Article

Ship Engine Model Selection by Applying Machine Learning Classification Techniques Using Imputation and Dimensionality Reduction.

Published in:

Journal of Marine Science & Engineering, 2024, v. 12, n. 1, p. 97, doi. 10.3390/jmse12010097

By:

Skarlatos, Kyriakos;
Papageorgiou, Grigorios;
Biris, Panagiotis;
Skamnia, Ekaterini;
Economou, Polychronis;
Bersimis, Sotirios

Publication type:

Article

Depressive symptoms in the entire spectrum of cognitive ageing in Greece: evidence from the Hellenic Longitudinal Investigation of Aging and Diet (HELIAD).

Published in:

International Journal of Psychiatry in Clinical Practice, 2024, v. 28, n. 1, p. 27, doi. 10.1080/13651501.2023.2296889

By:

Georgiou, Eleni-Zacharoula;
Politis, Antonios;
Kosmidis, Mary H.;
Yannakoulia, Mary;
Dardiotis, Efthimios;
Hadjigeorgiou, Georgios;
Sakka, Paraskevi;
Scarmeas, Nikolaos;
Economou, Polychronis;
Alexopoulos, Panagiotis

Publication type:

Article