Department of Mathematics

Aristotle University of Thessaloniki

Afendras Georgios

Associate Professor

Office: Glass Building of Faculty of Sciences, West Wing, 3rd Floor, Room 3.10

Office Hours: @-schedule

Phone Number: +302310997959

Email: gafendra@math.auth.gr

Website

Studies

  • Ph.D. in Mathematics, Ethnikon & Kapodistriakon Panepistimion Athinon, Athens, 2008
    • Doctoral Thesis Subject: Probability and Statistics
    • Doctoral Thesis Title: Variance bounds in terms of derivatives/differences up to some order
    • Supervisor: Prof. Papadatos Nickos
  • M.Sc. in Statistics and Operations Research,  Ethnikon & Kapodistriakon Panepistimion Athinon, Athens, 2004
  • B.Sc. in Mathematics,  Ethnikon & Kapodistriakon Panepistimion Athinon, Athens, 2001

Professional Experience

  • Associate Professor, Aristotle University of Thessaloniki, January 2023 – Today
  • Assistant Professor, Aristotle University of Thessaloniki, July 2018 – January 2023
  • Adjunct Assistant Professor, University at Buffalo, USA, February  2018 – 2022
  • Research Associate, University at Buffalo, USA, November 2015 – January 2018
  • Post Doctoral, University at Buffalo, USA, August 2014 – October 2015
  • Visitor Lecturer, University of Cyprus, January 2014 – May 2014
  • External Associate, Ethnikon & Kapodistriakon Panepistimion Athinon, January 2012 – February 2013
  • External Associate, Athens University of Economics and Business, October 2011 – November 2013
  • Visitor Lecturer, University of Cyprus, January 2009 – December 2010

Research Interests

  • Families of Distributions
  • Orthogonal Polynomials
  • Covariance Identities
  • Variance Bounds
  • Distances Between Distributions
  • Asymptotic Statistics
  • Cross Validation Estimation
  • Model Selection Procedures
  • Measures of dependence
  • Statistical Machine Learning

Selected Publications

  • Afendras, G., Papadatos, N. and Papathanasiou, V. (2011). An extended Stein-type covariance identity for the Pearson family, with applications to lower variance bounds. Bernoulli, 17(2), 507–529.
  • Afendras, G. (2013). Unified extension of variance bounds for integrated Pearson family. Ann. Inst. Stat. Math., 65, 687–702.
  • Afendras, G. and Papadatos, N. (2014). Strengthened Chernoff-type variance bounds. Bernoulli, 20(1), 245–264.
  • Afendras, G. and Markatou, M. (2016). Uniform Integrability of OLS Estimators, and the Convergence of their Moments. TEST, 25(4), 775–784.
  • Afendras, G., Balakrishnan, N. and Papadatos, N. (2018). On orthogonal polynomials in the cumulative Ord family and its applications to variance bounds. Statistics, 52(2), 364–392.
  • Afendras, G. and Markatou, M. (2019). Optimality of Training/Test Size and Resampling Effectiveness in Cross-Validation. J. Statist. Plann. Inference, 199(C), 286–301.