Research, Publications

Y Smirlis, V  Tsioumas,  S  Papadimitriou, E. Tzannatos (2025). An extreme value analysis framework for the tanker market. WMU Journal of Maritime Affairs,  https://doi.org/10.1007/s13437-025-00380-x PDF

Y. Smirlis, M.Ioakimidis, (2024). A Classification methdology for accessing countries in terms of Tourism Competitivess, Econonomic and Business Review, 26(3), 151-167  https://doi.org/10.15458/2335-4216.1339 PDF

G. Koronakos, Y. Smirlis, S. Plitsos (2023),  Mathematical programming models to assist the evaluation of shipbrokers, Intelligent Decision Technologies - IOS Press, vol. 18, no. 1, pp. 407-416, 2024 PDF 

G. Koronakos, Y. Smirlis, D. Sotiros, and DK. Despotis (2022), "The OECD Better Life Index: A guide for well-being based economic diplomacy". In: “Modern Indices for International Economic Diplomacy” (Eds. V. Charles and A. Emrouznejad). Palgrave Publishers Ltd (Springer International Publishing AG), UK, pp. 19-53. link

Tsioumas V., Smirlis Y., Papadimitriou S. (2021). Capturing the impact of economic forces on the dry bulk freight market,Maritime Transport Research, Vol. 2, 2021, 100018.  doi.org/10.1016/j.martra.2021.100018  PDF

Y. Smirlis (2020). A trichotomic segmentation approach for estimating composite indicators. Social Indicators Research. doi.org/10.1007/s11205-020-02310-1 PDF

Y.Smirlis, M.Ioakimidis,  (2019).Evaluating the performance of  alternative blended learning designs using DEA, Review of Economic and Business studies, Vol. 12, Issue 2/2019, pp. 79-92.  doi.org/10.1515/rebs-2019-0093. PDF

G.Koronakos, Y.Smirlis, D.Sotiros, D. Despotis, (2019), Assessment of OECD Better Life Index by incorporating public opinion, Socio-Economic Planning Sciences, to apper, doi.org/10.1016/j.seps.2019.03.005PDF

Y. Smirlis, (2018) Classifying and Predicting Efficiencies Using  Interval DEA grid setting, International Journal of Mathematical and Computational Sciences, Vol. 12, No. 6. Doi 10.1999/1307-6892/10009165 PDF

Shaher Z. Zahran,Jobair Bin Alam,Abdulrahem H. Al-Zahrani,Yiannis Smirlis, Stratos Papadimitriou,Vangelis Tsioumas (2017). Analysis of port efficiency using imprecise and incomplete data. Operational Research International Journal, doi.org/10.1007/s12351-017-0322-9

V. Tsioumas, S. Papadimitriou, Y. Smirlis, SZ. Zahrana,(2017),  A Novel Approach to Forecasting the Bulk Freight Market,   The Asian Journal of Shipping and Logistics,  Vol. 33 Issue 1 pp. 33-41 DOI 10.1016/j.ajsl.2017.03.005 PDF

Shaher Z Zahran, Jobair Bin Alam, Abdulrahem H Al-Zahrani, Yiannis Smirlis, Stratos Papadimitriou and Vangelis Tsioumas (2015), Analysis of port authority efficiency using data envelopment analysis, Maritime Economics & Logistics advance online publication 5 November 2015; doi: 10.1057/mel.2015.33 PDF

D. Sotiros, Y. Smirlis, D. Despotis, Incorporating intra- and inter-input/output weight restrictions in piecewise linear DEA: an application to the assessment of the research activity in Higher Education, Book chapter in Managing Service Productivity, series: International Series in Operations Research & Management Science,  Vol. 215 Emrouznejad, Ali, Cabanda, Emilyn (Eds.), 2014 - Springer

Smirlis Y, Despotis DK, Jablonsky J and Fiala P (2014). Identifying “best-buys” in the market of prepaid mobile telephony: An application of imprecise DEA, International  Journal of Information Technology and Decision Making, Vol.3  No 1

Y. Smirlis, D. Despotis  (2013), Piecewise Linear Virtual Inputs/Outputs in Interval DEA, Int. J. of Operations Research and Information Systems, Vol. 4, Issue 1

Smirlis Y, Despotis D (2012), Relaxing the impact of extreme units in Data Envelopment Analysis , International Journal of Information Technology & Decision Making Vol. 11, No 5 DOI: 10.1142/S0219622012500253.

M. Panta, Y. Smirlis, M. Sfakianakis (2011), Assessing bids of Greek public organizations service providers using data envelopment analysis, Operational Research: The International Journal, DOI 10.1007/s12351-01100108-4

Y. G. Smirlis, V. Zeimpekis and G. Kaimakamis (2010), Data envelopment analysis models to support the selection of vehicle routing software for city logistics operations, Operational Research: The International Journal, DOI 10.1007/s12351-010-0100-4

 Despotis DK, Stamati LV, Smirlis Y (2009). Data envelopment analysis with nonlinear virtual inputs and outputs. European Journal of Operational Research 202 PP. 604-613

Ioakimides M., Smirlis Y. Hassid J, (2007), Analysing costs of educational services for universities and e-universities: A further analysis on the student point of view Advances in the Economics of Education: On Markets and Post-Transformation Issues.Όrgen Backhaus, Raul Eamets, JΌri Sepp (eds.)  Lit Verlag Όnster

 Y.Smirlis, M.Panta, G.Kaimakamis, M. Sfakianakis (2007), Assessment of bids for logistist services, Spoudai - University of Piraeus,  57 (3), 78-89. (in Greek)

Y. Smirlis, E. Maragos, D.Despotis, Imprecise DEA with missing values: An Interval DEA approach,  Applied Mathematics and Computation 177 (2006) pp. 1-10

Dimitris K. Despotis, Yannis G. Smirlis, Josef Jablonsky und Petr Fiala, Bewertung von Prepaid-Paketen nach dem Preis-Leistungs-Verhltnis: Ein DEA-Ansatz  klassierte Daten, MARKETING-EFFIZIENZ Messung und Steuerung mit de DEA  Konzept und Einsatz in der Praxis, Hans H. Bauer / Matithias Staat Maik Hammerschmidt (Hrsg.), 2006 Verlang Franz Vahlen GmbH, ISBN-13 978-3-8006-3285-5 p. 247-259

Y. Smirlis, (2006), Reducing the size of DEA problems, University of Piraeus, Hononary scientific Journal  for Prof. A. Panagiotopoulos, Vol. B, p. 977-986,  2006

D. Kokotos, Y. Smirlis (2005), A classification tree application to predict total ship loss,  Journal of Transportation and Statistics, Vol 8, No 2 Oct. 2005

J.Jablonsky,  P. Fiala, , Y.Smirlis, D.K.Despotis (2004) DEA with Interval Data:An illustration using the evaluation of branches of a Czech Bank, Central European Journal of Operational Research, Vol.12(4) 323-337 

Despotis DK and Smirlis Y (2002). Data Envelopment Analysis with imprecise data. European Journal of Operational Research 140: 24-37

Y. Smirlis, Product selection on the Web : a DSS system for recording and analyzing consumer preferences, Honorary volume dedicated to M. Raphael Vol. I, University of Piraeus, 2000 (in Greek)

Y. Smirlis, A.Salis (2022)  A comparative study of the purchasing power of civil servants in Greece and the EU countries 2016-2020 update, Koinoniko Polykentro -research and training institute of the Greek Civil Service Confederation (ADEDY) (research monograph in Greek), December 2022, PDF

Y. Smirlis, A.Salis (2018)  A comparative study of the purchasing power of civil servants in Greece and the EU countries,   Koinoniko Polykentro -research and training institute of the Greek Civil Service Confederation (ADEDY) (research monograph in Greek), December 2018, PDF

V  Tsioumas, Y Smirlis (2025). A Quantitative Assessment of Extreme Freight Rates in Shipping. StatMod Statistical Modeling with Applications, A Conference in honour of Professor Markos V. Koutras. University of Piraeus, 26-28 September 2025

Y Smirlis, V  Tsioumas,  S  Papadimitriou (2025). A quantitative assessment of macroeconomic effects on the tanker market, EWGT2025: Euro Working Group on Transportation 27th Annual Conference, Edinburgh Napier University, 1-3 September 2025

Y Smirlis, G Koronakos, Y Pollalis (2025). A block structure to facilitate RFM analysis for customer segmentation in applications with big and streaming data, International Conference on Business Analytics in Practice 2025, August 24-27, University of Piraeus, Greece

Y Smirlis, V  Tsioumas,  S  Papadimitriou (2025). An extreme value analysis of freight rates in the dry bulk market. SEA the Future : Southeast Asia’s Maritime futures, 26-28 February 2025 Pattaya, Thailand

V  Tsioumas, Y Smirlis,  S  Papadimitriou (2024). Extreme Fuel Price Spreads Influencing Scrubber Adoption, International Forum on Shipping, Ports and Airports (IFSPA) 2024, 10-14 June 2024, Singapore

Y. Smirlis, G. Koronakos, S. Plitsos (2023). A mathematical model to select shipbrokers, International Conference on Operations Research, Management and Applications ICORMA in November 2023 Nicosia Cyprus

Y Smirlis, V  Tsioumas,  S  Papadimitriou, E  Tzannatos, (2023). An extreme value analysis of tanker freight rates. World Conference on Transport Research - WCTR 2023 Montreal 17-21 July 2023

Y Smirlis, V  Tsioumas,  S  Papadimitriou, E  Tzannatos, (2023). A stochastic analysis of freight market peaks for the dry bulk sector. IAME Annual Conference 2023 2023 Long Beach, California, September 5-8, 2023

G Koronakos, Y Smirlis, S Plitsos,,  E Tzannatos , Α Karalis, K Poutos, (2023)  OptiShip: A platform to support decisions during ship’s life cycle, 14th International Conference on Information, Intelligence, Systems and Applications (IISA2023), 10–12 July 2023, Volos, Greece

Smirlis Y., Tsioumas V., Papadimitriou S., Lyridis D. (2021). Constructing a new composite indicator for the economic environment of the tanker market, 29th Conference of the International Association of Maritime Economics, Rotterdam November 2021

Y. Smiris, M Bonazountas (2020). A composite indicators approach to assisting decisions in ship LCA/ LCC.9th International Conference on Operations Research and Enterprise Systems -ICORES 2020 conference proceedings, Malta 22-24 February 2020 PDF

Dimitris Sotiros, Gregory Koronakos, Yiannis Smirlis, Dimitris Despotis, Review and Improvements on OECD Better Life Index, DEA 40 International Conference on Data Envelopment Analysis, Aston UK, April 16-18 2018

V. Tsioumas, S. Papadimitriou, Y. Smirlis, Forecasting the Baltic Dry Index: An enhanced multivariate approach,Annual conference of the International Association of Maritime Economists-IAME, Hamburg  August 23-26 2016.

 E. Thanassoulis, D. Despotis, D-G. Sotiros, Y. Smirlis, G. Karagiannis (2014), Assessing university research output from different perspectives, 20th  IFORS 2014 conference, Barchelona, 13-18 July 2014

E. Thanassoulis, D. Sotiros, D.K. Despotis, Y. Smirlis (2014),  Assessing research productivity in terms of endogeneity or exogeneity of academic salaries. Efficiency in Education Conference, London September 19-20

D. Sotiros, D.K. Despotis, G. Koronakos, Y. Smirlis, (2013), Incorporating user preferences in DEA with Ordinal Regression, XI Balcan Conference on Operational Research (BALCOR 2013), Belgrade, Sept. 2013

Y. Smirlis, D.K. Despotis (2013), Comparative analysis of the public funding for Greek Universities: An ordinal DEA/MCDM approach,  International Conference on Data Analysis and Decision Making (ICDADM 2013), Venice Italy, Aug 15-16, 2013

Y. Smirlis , D. Sotiros, D. Despotis, G. Koronakos (2013), Evaluation of research activity in higher education: A Data Envelopment Analysis approach, 24th National Conference on Operational Research, Athens, Greece, Sept. 26-28, 2013

Despotis DK, Smirlis Y (2010). Reducing the effect of outliers on DEA efficiency assessments. 4th Symposium on Data Envelopment Analysis, Jiaosi, Taiwan.

Despotis DK, Smirlis Y (2010). Handling Extreme Observations in Data Envelopment Analysis. The International Symposium on Stochastic Models in Reliability Engineering, Life Sciences and Operations Management. Beer  Sheva, Israel.

Smirlis Y, Despotis DK), 2010) Piecewise linear virtual inputs/outputs in Interval DEA, 24th European Conference on Operational Research, Lisbon 11-14 July 2010

Smirlis Y, Stamati LV, Despotis DK (2009). Reducing the size of large scale Data Envelopment Analysis problems using Interval DEA . 23rd European Conference on Operational Research -EURO 2009, Bonn, Germany

Stamati LV, Despotis DK, Smirlis Y (2009). Data envelopment analysis with nonlinear virtual inputs and outputs. 23rd European Conference on Operational Research -EURO 2009, Bonn, Germany.

Y Smirlis,  Marilou Ioakimidis, Evaluating alternative instructional designs for blended learning programs, 2nd International Conference on Educational Economics-2ICEE, Athens 27-30 August

Y Smirlis, Dimitris Tsimaras, Modeling the cost of blended distance Learning Training programs for the public sector, 2nd International Conference on Educational Economics-2ICEE, Athens 27-30 August

 J.Hassid, Y.Smirlis, M.Ioakimidis, Analysing costs of educational services for universities and e-universities: The student point of view,  International Conference EDUCATIONAL ECONOMICS, Faculty of Economics and Business Administration, University of Tartu, 26-28 Tartu, Estonia

D Kallindromitou, M Bonazountas, Y Smirlis (2005), A model for the assessment of environmental sustainability at regional level,   HELECO 05,  Athens 3-6/2/2005

M.Bonazountas, Y.Smirlis, D.Kallidromitou, Assessing Sustainability of EU Regions : The case of the EPSILON™ tool, ENVIROINFO 2004-18o International Conference informatics for Environmental Protection, 21-23 October 2004

 D.Kallidromitou, Y.Smirlis, M.Bonazountas, Assessing Regional Sustainability in Greece, International Conference of the PROTECTION AND RESTORATION OF THE ENVIRONMENT VII, Mykonos, Greece 2004

Despotis DK and Smirlis Y (2002). Global efficiency scores in interval data envelopment analysis. IFORS 2002 Conference- OR in a globalized world economy, Edinburgh, UK

Jablonsky J, Fiala P, Despotis DK and Smirlis J (2001). Simulation Experiments with Interval DEA models : Multicriteria Evaluation of Bank Branches. MCDM Conference, Cairo, Egypt

Despotis DK, Smirlis Y, Jablonsky J and Fiala P (2001). Imprecise DEA: Detecting best-buys in the market of prepaid mobile telephony in Greece. MCDM Conference, Cairo, Egypt

 Despotis DK., Smirlis Y, (2001), Data Envelopment Analysis with Imprecise Data, 53rd Meeting of the European Working Group Multicriteria Aid for Decisions, Athens, March 29-30

 Despotis DK and Smirlis Y (2001). Interval data envelopment analysis: Models and new application areas. ORBEL-15 Conference, Antwerp, Belgium

 D. Ginis, D. Kokotos, Y. Smirlis, A study of relating students' grades in high school and in University, Proceedings of the 130th National Conference of Statistics, Florina 2000, Greece,  pp. 153-161

 Despotis DK and Smirlis Y. Data Envelopment analysis with spreadsheets. EURO XVII Conference on Operational Research, Budapest, Hungary

Fiala P, Jablonsky J, Smirlis Y and Despotis DK (2000). DEA with interval data: An application to the evaluation of branches of a Czech bank. IFORS Special Conference: New trends in Banking Management  10, Athens, Greece

Smirlis Y, Georgiakodis F and Despotis DK (1999). Supporting product selection on the Web: A basis for consumer preference analysis. Proceedings of the 5th International Conference of the Decision Sciences Institute, Athens, Greece, p.p. 373-375

 Y. Smirlis, F. Georgiakodis, D. Despotis (1999), Ranking products on qualitative attributes using binary, Proceedings of the 120th National Conference of Statistics, Hellenic Statistical Institute, Spetses,  15-18 June 1999, pp.  507-515

 Y. Smirlis, F. Georgiakodis, D. Despotis (1999), Analysing the differences in qualitative product characteristics : An application to the car market, Proceedings of the 11th National Conference of Greek Operational Research Society -EEEE, Athens, May 1997, pp.  630-640

 Alexandris N, Smirlis Y and Despotis DK (1999). Virtual opinion leader: A web based application to support product selection and analyze consumer preferences. IFORS-15 Conference, Beijing, China

Lygeri P.Soubassi, Constantina Aggeli, Ioannis Smirlis, Eirene Grapsa, Ghristos Pitsavos, Christodoulos Stefanadis, Pavios Soubassis, Pavlos Toutouzas, Nicholaos Zerefos, Renal Unit, Alexandra Hospital, Dept of  Cardiology, Univ. of Athens, Greece.  Alterations of aortic   distensibility in young patients vs. older with chronic renal failure after hemodialysis, American Journal of  Kidney Diseases, Book of Abstracts, Vol. 33, No. 4, April  1999

 Y. Smirlis, F. Georgiakodis, D. Despotis (1997, Market analysis for the design new products, Proceedings of the 100th National Conference of Statistics, Hellenic Statistical Institute, Athens 1997, pp.   609-623

 Triantafilidis, Y. Smirlis, et al. Risk of upper g.i. bleeding among ex-smokers, II United European Gastroenterology Week, Barchelona 19-24 Jully 1993

A.Emmanouilidis, Y. Triantafilidis, Y. Smirlis, B.Dimou,  Polypus of the large entestine: analysis of clinical data for 334 patients, 13o Greek Gastroenterology Conference, Rhodes,  13-17 October 1993

 A.Emmanouilidis, Y. Triantafilidis, Y. Smirlis, B.Dimou,  Alterated Polypus of the large entestine: analysis of clinical data for 24 patients, 13o Greek Gastroenterology Conference, Rhodes,  13-17 October 1993