Economou Polychronis
Associate Professor of Statistics
Associate Professor of Statistics
Research Interests:
Survival and Reliability Models
Diagnostics Tests
Biased Sampling and Weighted Distributions
Time Series
Statistical quality control
Stochastic optimazation
Big data analysis
Qualifications:
PhD in Statistics (NTUA, 2007)
MSc in Applied Mathematics (NTUA, 2003)
Degree in Mathematics (University of Ioannina, 2001)
Survival and Reliability Models
Diagnostics Tests
Biased Sampling and Weighted Distributions
Time Series
Statistical quality control
Stochastic optimazation
Big data analysis
Qualifications:
PhD in Statistics (NTUA, 2007)
MSc in Applied Mathematics (NTUA, 2003)
Degree in Mathematics (University of Ioannina, 2001)
RECENT PUBLICATIONS:
2024
S. Karatzas, G. Papageorgiou, V. Lazari, S. Bersimis, A. Fousteris, P. Economou and A. Chassiakos, A Text Analytic Framework for Gaining Insights on the Integration of Digital Twins and Machine Learning for Optimizing Indoor Building Environmental Performance. Developments in the Built Environment, Accepted
G. Papageorgiou, P. Economou and S. Bersimis, A Method for Optimizing Text Preprocessing and Text Classification Using Multiple Cycles of Learning with an Application on Shipbrokers Emails. Journal of Applied Statistics, DOI: 10.1080/02664763.2024.2307535
K. Skarlatos, G. Papageorgiou, P. Biris, E. Skamnia, P. Economou and S. Bersimis, Ship Engine Model Selection by Applying Machine Learning Classification Techniques Using Imputation and Dimensionality Reduction. Journal of Marine Science and Engineering. 12(1):97, 2024
2023
E.Z. Georgiou, A. Politis, M.H. Kosmidis, M. Yannakoulia, E. Dardiotis, G. Hadjigeorgiou, P. Sakka, N. Scarmeas, P. Economou and P. Alexopoulos, Depressive symptoms in the entire spectrum of cognitive aging in Greece: Evidence from the Hellenic Longitudinal Investigation of Aging and Diet (HELIAD), International Journal of Psychiatry in Clinical Practice, DOI: 10.1080/13651501.2023.2296889
A. Katerelos, P. Alexopoulos, P. Economou, P. Polychronopoulos and E. Chroni, Cognitive function in Amyotrophic Lateral Sclerosis: A cross-sectional and prospective pragmatic clinical study with review of the literature, Neurological Sciences, 2023, https://doi.org/10.1007/s10072-023-07262-1
E. Skamnia, P. Economou and S. Bersimis, Detect outliers, breakpoints and level shifts in short financial time series, Communications in Statistics: Case Studies, Data Analysis and Applications, 2023, DOI: 10.1080/23737484.2023.2293691
S. Malefaki, A. Batsidis and P. Economou (2023). Statistical Data Analysis [Undergraduate textbook]. Kallipos, Open Academic Editions. https://dx.doi.org/10.57713/kallipos-321 (In Greek).
P. Economou and P. Papadopoulos (2023). Introduction to programming [Undergraduate textbook]. Kallipos, Open Academic Editions. https://dx.doi.org/10.57713/kallipos-145 (In Greek).
S. Bersimis, A. Sachlas and P. Economou, Public Health Monitoring Using Control Charts Based on Convex Hull, Research in Statistics, 1:1, 2023 DOI: 10.1080/27684520.2023.2246448
P. Åconomou, A clustering algorithm for overlapping Gaussian mixtures, Research in Statistics, 1:1, 2023, DOI: 10.1080/27684520.2023.2242337
P. Alexopoulos, M. Skondra, M. Charalampopoulou, E. Georgiou, A. Demertzis, S.É. Aligianni, A. Politis, P. Åconomou and D. Daussis, Low cognitive functioning and depressive symptoms in patients with rheumatoid arthritis and systemic sclerosis: A clinical study, BMC Psychiatry, 23, 513, 2023
E. Georgiou, M. Skondra, M. Charalampopoulou, P. Felemegkas, G. Stafylidou, V. Thomopoulos, A. Politis, I. Leroi, P. Economou and P. Alexopoulos, Validation of the Test for Finding Word retrieval deficits (WoFi) in detecting Alzheimer's Disease in a naturalistic clinical setting, European Journal of Ageing. 20, Article number:29, 2023
G. Giotopoulos, D. Papoulis, I. Koukouvelas, I. Skopeliti, P. Economou and E. Gianni, Teaching Geology In Higher Education Institutions Under Covid-19 Conditions. Geosciences,13(4):96, 2023
K. Skarlatos, A. Fousteris, D. Georgakellos, P. Economou and S. Bersimis, Assessing Ships' Environmental Performance using Machine Learning. Energies, 16(6):2544, 2023
K. Skarlatos, E.S. Bekri, D. Georgakellos, P. Economou and S. Bersimis, Projecting annual rainfall timeseries using machine learning techniques. Energies, 16(3):1459, 2023
L.N. Sklivaniotis, P. Economou, H.K. Karapanagioti, I.D. Manariotis. Chlorine Removal from Water by Biochar Derived from Various Food Waste Natural Materials, Environmental Processes. 10, Article number: 4, 2023
A. Batsidis and P. Economou. A Model Selection Criterion for Count Models Based on a Divergence Between Probability Generating Functions, In "Trends in mathematical, information and data sciences: a tribute to Leandro Pardo", 159-168, 2023
2024
S. Karatzas, G. Papageorgiou, V. Lazari, S. Bersimis, A. Fousteris, P. Economou and A. Chassiakos, A Text Analytic Framework for Gaining Insights on the Integration of Digital Twins and Machine Learning for Optimizing Indoor Building Environmental Performance. Developments in the Built Environment, Accepted
G. Papageorgiou, P. Economou and S. Bersimis, A Method for Optimizing Text Preprocessing and Text Classification Using Multiple Cycles of Learning with an Application on Shipbrokers Emails. Journal of Applied Statistics, DOI: 10.1080/02664763.2024.2307535
K. Skarlatos, G. Papageorgiou, P. Biris, E. Skamnia, P. Economou and S. Bersimis, Ship Engine Model Selection by Applying Machine Learning Classification Techniques Using Imputation and Dimensionality Reduction. Journal of Marine Science and Engineering. 12(1):97, 2024
2023
E.Z. Georgiou, A. Politis, M.H. Kosmidis, M. Yannakoulia, E. Dardiotis, G. Hadjigeorgiou, P. Sakka, N. Scarmeas, P. Economou and P. Alexopoulos, Depressive symptoms in the entire spectrum of cognitive aging in Greece: Evidence from the Hellenic Longitudinal Investigation of Aging and Diet (HELIAD), International Journal of Psychiatry in Clinical Practice, DOI: 10.1080/13651501.2023.2296889
A. Katerelos, P. Alexopoulos, P. Economou, P. Polychronopoulos and E. Chroni, Cognitive function in Amyotrophic Lateral Sclerosis: A cross-sectional and prospective pragmatic clinical study with review of the literature, Neurological Sciences, 2023, https://doi.org/10.1007/s10072-023-07262-1
E. Skamnia, P. Economou and S. Bersimis, Detect outliers, breakpoints and level shifts in short financial time series, Communications in Statistics: Case Studies, Data Analysis and Applications, 2023, DOI: 10.1080/23737484.2023.2293691
S. Malefaki, A. Batsidis and P. Economou (2023). Statistical Data Analysis [Undergraduate textbook]. Kallipos, Open Academic Editions. https://dx.doi.org/10.57713/kallipos-321 (In Greek).
P. Economou and P. Papadopoulos (2023). Introduction to programming [Undergraduate textbook]. Kallipos, Open Academic Editions. https://dx.doi.org/10.57713/kallipos-145 (In Greek).
S. Bersimis, A. Sachlas and P. Economou, Public Health Monitoring Using Control Charts Based on Convex Hull, Research in Statistics, 1:1, 2023 DOI: 10.1080/27684520.2023.2246448
P. Åconomou, A clustering algorithm for overlapping Gaussian mixtures, Research in Statistics, 1:1, 2023, DOI: 10.1080/27684520.2023.2242337
P. Alexopoulos, M. Skondra, M. Charalampopoulou, E. Georgiou, A. Demertzis, S.É. Aligianni, A. Politis, P. Åconomou and D. Daussis, Low cognitive functioning and depressive symptoms in patients with rheumatoid arthritis and systemic sclerosis: A clinical study, BMC Psychiatry, 23, 513, 2023
E. Georgiou, M. Skondra, M. Charalampopoulou, P. Felemegkas, G. Stafylidou, V. Thomopoulos, A. Politis, I. Leroi, P. Economou and P. Alexopoulos, Validation of the Test for Finding Word retrieval deficits (WoFi) in detecting Alzheimer's Disease in a naturalistic clinical setting, European Journal of Ageing. 20, Article number:29, 2023
G. Giotopoulos, D. Papoulis, I. Koukouvelas, I. Skopeliti, P. Economou and E. Gianni, Teaching Geology In Higher Education Institutions Under Covid-19 Conditions. Geosciences,13(4):96, 2023
K. Skarlatos, A. Fousteris, D. Georgakellos, P. Economou and S. Bersimis, Assessing Ships' Environmental Performance using Machine Learning. Energies, 16(6):2544, 2023
K. Skarlatos, E.S. Bekri, D. Georgakellos, P. Economou and S. Bersimis, Projecting annual rainfall timeseries using machine learning techniques. Energies, 16(3):1459, 2023
L.N. Sklivaniotis, P. Economou, H.K. Karapanagioti, I.D. Manariotis. Chlorine Removal from Water by Biochar Derived from Various Food Waste Natural Materials, Environmental Processes. 10, Article number: 4, 2023
A. Batsidis and P. Economou. A Model Selection Criterion for Count Models Based on a Divergence Between Probability Generating Functions, In "Trends in mathematical, information and data sciences: a tribute to Leandro Pardo", 159-168, 2023
Economou Polychronis
Address:
University of Patras
Department of Civil
Engineering
265 00, Rion-Patras
Greece
Tel: +30 2610 997240
E-mail: peconom@upatras.gr
Address:
University of Patras
Department of Civil
Engineering
265 00, Rion-Patras
Greece
Tel: +30 2610 997240
E-mail: peconom@upatras.gr
University of Patras
Department of
Civil Engineering
Civil Engineering
School of Engineering
Publication metrics
Number of publications (papers, proceedings, R-packages): 70
mean number of co-authors per publication: 3.400
number of publications with respect to the number of co-authors
single author: 3
co-authors 1: 22 2: 17
3: 6 4: 6
5: 4 6: 2
7: 1 8: 1
9: 3 11: 1
12: 1 14: 2
15: 1
Co-authors network (clik to open)
Number of different co-authors: 116
Top co-authors (number of publications (%))
C. Caroni: 13 (18.57%)
G. Tzavelas: 13 (18.57%)
P. Alexopoulos: 12 (17.14%)
A. Batsidis: 10 (14.29%)
A. Politis: 10 (14.29%)
S. Bersimis: 10 (14.29%)
Number of publications (papers, proceedings, R-packages): 70
mean number of co-authors per publication: 3.400
number of publications with respect to the number of co-authors
single author: 3
co-authors 1: 22 2: 17
3: 6 4: 6
5: 4 6: 2
7: 1 8: 1
9: 3 11: 1
12: 1 14: 2
15: 1
Co-authors network (clik to open)
Number of different co-authors: 116
Top co-authors (number of publications (%))
C. Caroni: 13 (18.57%)
G. Tzavelas: 13 (18.57%)
P. Alexopoulos: 12 (17.14%)
A. Batsidis: 10 (14.29%)
A. Politis: 10 (14.29%)
S. Bersimis: 10 (14.29%)