Ioannis Oikonomidis

About Me

I am a PhD student at the National and Kapodistrian University of Athens, working under the supervision of Professor Samis Trevezas. The research subject I am working on is statistical techniques for crop stage monitoring and prediction with remote sensing data.

Click here to download my resume.

I would like to thank the Bodossaki Foundation and the Fanourakis Foundation for funding my Master's and PhD studies.

Teaching Assistant

2020 - now National and Kapodistrian University of Athens

I conducted sessions and created teaching material, including R code, exercises, and assignments, for bachelor’s and master’s level courses on mathematical statistics, non- parametric statistics, linear models, Monte Carlo statistical methods and statistics for stochastic processes.

Data Analyst

2020 - now Freelance - Part Time

I have worked on several projects as a freelance data analyst, gathering experience from a variety of fields including biostatistics, agronomy, psychology, and econometrics. Indicative examples include:

Agricultural Goal Programming

Developed an automated fertilizer mixer that optimized the proportions of specified fertilizers to produce a final blend most closely matching the target composition. The final product was an MS Excel spreadsheet in which the user could write the available fertilizers’ ingredients, the target composition and get the proportions that produced the desired result or, if not possible, the ones that produced the closest mix possible.

Biostatistics Cohort Study

Analyzed the data derived from a cohort study on stroke survivors’ quality of life and the effect of personalized rehabilitation programs. The analysis, performed on SPSS, included cumulative link & binomial mixed-effects logistic modeling and mixed-effects ANOVA. The results showed the positive effect of rehabilitation in time and uncovered the underlying health conditions (hypertension) and demographic variables (marital status) that affected quality of life.

Crime Rate Spatial Analysis

Worked on the cargo theft crime data of the Federal Bureau of Investigation (FBI). Created a Moran’s I cluster map that identified subareas with a high crime rate, significantly reducing the policy application cost. The final product was an interactive report created with R Markdown, leaflet and shiny.

PhD Candidate

Statistical Techniques for Crop Stage Monitoring and Prediction with Remote Sensing Data.

2020 - Current National and Kapodistrian University of Athens

MSc of Mathematics in Statistics & Operational Research

2018 - 2020 National and Kapodistrian University of Athens

Bachelor of Mathematics

2013 - 2018 National and Kapodistrian University of Athens

Bachelor of Music in Piano

2004 - 2016 Kos Center of Musical Studies (T. Kamateros), Zografos Conservatory (G. Politopoulos)

Papers

Cumulative 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 Trevezas