About Me
I am a postdoctoral researcher at the Management Science Laboratory (MSL) of the Athens University of Economics and Business (AUEB). The research subject I am working on is development of mathematical models for dynamic electricity pricing. I am also an adjunct professor at the National and Kapodistrian University of Athens (NKUA), teaching undergraduate courses in non-parametric statistics and computational statistics.
Click here to download my resume.Education
PhD in Statistics
Dissertation Title: Parameter Estimation Methods in Multivariate Distribution Families with Applications in Remote Sensing Agriculture and Biostatistics
11/2020 - 05/2025 National and Kapodistrian University of AthensMSc of Mathematics in Statistics & Operational Research
10/2018 - 10/2020 National and Kapodistrian University of AthensBachelor of Mathematics
10/2013 - 09/2018 National and Kapodistrian University of AthensExperience
Postdoctoral Researcher
08/2025 - now Athens University of Economics and BusinessConducting research on electricity dynamic pricing, including data analysis, statistical modeling, and model development.
Data Scientist
10/2018 - 07/2025 Freelance - Part TimeWorked on several projects as a freelance data scientist, gathering experience from a variety of fields including biostatistics, agronomy, psychology, and econometrics.
Publications in Peer-Reviewed Journals
Moment-Type Estimators for the Dirichlet and the Multivariate Gamma Distributions - Read it here
3 July 2025 Journal of Multivariate Analysis - Elsevier Ioannis Oikonomidis, Samis TrevezasCumulative Link Mixed-Effects Models in the Service of Remote Sensing Crop Progress Monitoring - Read it here
30 November 2024 Biometrics - Oxford University Press Ioannis Oikonomidis, Samis TrevezasGrants & Fellowships
I would like to thank the Bodossaki Foundation and the Fanourakis Foundation for funding my Master's and PhD studies.
PhD Scholarship
2024 - 2025 Fanourakis FoundationPhD Scholarship
2021 - 2023 Bodossaki FoundationMaster’s Degree Scholarship
2019 - 2020 Bodossaki FoundationAwards
Best Statistics Paper Prize for Young Statisticians - See Announcement
2021 Greek Statistical InstitutePresentations in Conferences
Transforming Energy Billing: A Shift from Flat-Rate to Dynamic Approaches
19-20 September 2025 1st International Conference on AI in Finance, Accounting, Management, and Energy (FAME) Ioannis Oikonomidis, Athanasios Sakkas, Dimitris ZissisDynamic Pricing in the Greek Energy Sector Moving Beyond the Flat-Rate Model
25-29 August 2025 12th International Conference on Energy, Sustainability and Climate Crisis (ESCC) Ioannis Oikonomidis, Athanasios Sakkas, Dimitris ZissisRegression Methods Adapted to Large-Scale Prediction of Crop Development Using Remote Sensing Data
11 December 2023 Department of Mathematics, University of Patras - Invited Talk Ioannis Oikonomidis, Samis TrevezasA Remote Sensing Application of Generalized Linear Mixed-Effects Models in Crop Phenology Prediction
7-10 June 2023 International Workshop on Applied Probability (IWAP) Ioannis Oikonomidis, Samis TrevezasThe Method of Moments vs Maximum Likelihood An overestimated difference?
25-28 May 2023 Greek Statistical Institute (GSI) Ioannis Oikonomidis, Samis TrevezasModeling the Variability of an Arabidopsis Thaliana Population with the Greenlab Model
19-22 May 2022 Greek Statistical Institute (GSI) Ioannis Oikonomidis, Samis TrevezasAn Introduction to Statistics – A Case Study in Education
9-10 October 2021 Conference on Informatics in Education (CIE) Ioannis Oikonomidis, Margarita KaraliopoulouRegression-Type Approaches for Prediction of Crop Stage Percentages
23-26 September 2021 Greek Statistical Institute (GSI) Ioannis Oikonomidis, Samis TrevezasA Comparison of Hidden Markov and Regression Models on Crop Stage Percentages Prediction
1-4 June 2021 Applied Stochastic Models and Data Analysis International Society (ASMDA) Ioannis Oikonomidis, Samis TrevezasTeaching
Adjunct Professor
Fall 2025 National and Kapodistrian University of AthensTeaching undergraduate courses in non-parametric statistics and computational statistics, designing and delivering lectures, practical sessions, and assessment materials. Developed teaching resources including R code, exercises, and assignments.