DEPARTMENT OF STATISTICS

Theodosis D. Dimitrakos, Assistant Professor

Research field: Stochastic Operations Research

E-mail: dimitheo@aueb.gr

Greek Version

Research Interests

• Applications of Probability Theory
• Stochastic Models in Operations Research
• Markov Decision Processes
• Stochastic Dynamic Programming
• Population Models in Epidemiology and Ecology
• Maintenance and Replacement Models for Equipment
• Optimal vehicle routing models for product distribution
• Optimal control models for emergency medical systems
• Optimal pricing models for airline tickets and hotel accommodation

Curriculum Vitae

Curriculum Vitae

Publications

• [1]. G.A. Kechagias, A.C. Diamantidis, T.D. Dimitrakos, M. Tsakalerou, Optimal maintenance of deteriorating equipment using semi-Markov decision processes and linear programming. International Journal of Industrial Engineering and Management, Vol. 15, No. 1, pp. 81–95, 2024.
• [2]. G.A. Kechagias, A.C. Diamantidis and T.D. Dimitrakos, A semi-Markov decision model for the optimal control of an Emergency Medical Service System. International Journal of Industrial and Systems Engineering, Vol. 46, No. 2, pp. 169–194, 2024.
• [3]. C.C. Karamatsoukis, E.G. Kyriakidis and T.D. Dimitrakos, Two-compartment stochastic single vehicle routing problems with simultaneous pickups and deliveries from ordered customers. International Journal of Systems Science: Operations & Logistics, Vol. 8, Issue 2, pp. 185–203, 2021.
• [4]. E.G. Kyriakidis, T.D. Dimitrakos and C.C. Karamatsoukis, A stochastic single vehicle routing problem with a predefined sequence of customers and collection of two similar materials. Methodology and Computing in Applied Probability, Vol. 22, pp. 1559–1582, 2020.
• [5]. E.G. Kyriakidis, T.D. Dimitrakos and C.C. Karamatsoukis, Optimal delivery of two similar products to ordered customers with product preferences. International Journal of Production Economics, Vol. 209, pp. 194–204, 2019.
• [6]. E.G. Kyriakidis and T.D. Dimitrakos, Stochastic single vehicle routing problem with ordered customers and partial fulfillment of demands. International Journal of Systems Science: Operations & Logistics, Vol. 6, Issue 3, pp. 285–299, 2019.
• [7]. T.D. Dimitrakos and E.G. Kyriakidis, A single vehicle routing problem with pickups and deliveries, continuous random demands and predefined customer order. European Journal of Operational Research, Vol. 244, pp. 990–993, 2015.
• [8]. E.G. Kyriakidis and T.D. Dimitrakos, A semi-Markov decision model for the optimal control of a simple immigration-birth-death process through the introduction of a predator. Communications in Statistics – Theory and Methods, Vol. 45(13), pp. 3860–3873, 2016.
• [9]. D.G. Pandelis, E.G. Kyriakidis and T.D. Dimitrakos, Single vehicle routing problems with a predefined customer sequence, compartmentalized load and stochastic demands. European Journal of Operational Research, Vol. 217, pp. 324–332, 2012.
• [10]. E.G. Kyriakidis and T.D. Dimitrakos, Single vehicle routing problem with a predefined customer sequence and stochastic continuous demands. The Mathematical Scientist, Vol. 33, pp. 148–152, 2008.
• [11]. T.D. Dimitrakos and E.G. Kyriakidis, A semi-Markov decision algorithm for the maintenance of a production system with buffer capacity and continuous repair times. International Journal of Production Economics, Vol. 111, pp. 752–762, 2008.
• [12]. T.D. Dimitrakos and E.G. Kyriakidis, An improved algorithm for the computation of the optimal repair/replacement policy under general repairs. European Journal of Operational Research, Vol. 182, pp. 775–782, 2007.
• [13]. E.G. Kyriakidis and T.D. Dimitrakos, A pest immigration process controlled by an intermittent predator. The Mathematical Scientist, Vol. 31, pp. 35–41, 2006.
• [14]. E.G. Kyriakidis and T.D. Dimitrakos, Computation of the optimal policy for the control of a compound immigration process through total catastrophes. Methodology and Computing in Applied Probability, Vol. 7, pp. 97–118, 2005.
• [15]. E.G. Kyriakidis and T.D. Dimitrakos, Optimal Preventive Maintenance of a Production System with an Intermediate Buffer. European Journal of Operational Research, Vol. 168, pp. 86–99, 2006.
• [16]. E.G. Kyriakidis and T.D. Dimitrakos, Optimal Control of Two Competing Diseases with State-Dependent Infection Rates. The Mathematical Scientist, Vol. 27, pp. 36–44, 2002.
• [17]. T.D. Dimitrakos, E.G. Kyriakidis, C.C. Karamatsoukis, Optimal maintenance of a production-inventory system with continuous repair times and idle periods. International Journal of Applied Mathematics and Informatics, Vol. 14, pp. 32–39, 2020.

Book

PROBABILITY, STATISTICS AND STOCHASTIC MODELS

Book website

Teaching (Academic Year 2026–2027)

Fall Semester

• Statistics for Business (Department of Accounting and Finance)

Spring Semester

• Statistical Inference and Hypothesis Testing
• Linear Algebra II (co-teaching with M. Zazanis)