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Thesis

Sifaleras A., ''Development and Implementation of Exterior Point Simplex Type Algorithms for Network Optimization Problems'', (in Greek), Ph.D. Dissertation, Department of Applied Informatics, University of Macedonia, Greece, 2006. (Thesis supervisor: Prof. Konstantinos Paparrizos)

Authored Books

  1. Paparrizos K., Samaras N., and Sifaleras A., Network Optimization (in Greek), ZYGOS Publications, Thessaloniki, ISBN: 978-960-8065-68-0, 343 p., 2009.

Edited Books

  1. Migdalas A., Sifaleras A., Georgiadis C.K., Papathanasiou J., and Stiakakis E. (Eds.), Optimization Theory, Decision Making, and Operations Research Applications, Springer Proceedings in Mathematics & Statistics, Vol. 31, Springer New York, ISBN: 978-1-4614-5133-4, 322 p., 2013.
  2. Sifaleras A., Urošević D., and Mladenović N. (Eds.), Book of Proceedings of the 28th EURO Mini Conference on Variable Neighborhood Search (MEC XXVIII - VNS), Belgrade, Serbia, ISBN: 978-86-7680-260-9, 296 p., 2012.

Articles in Peer-Reviewed International Journals

  1. Marinakis Y., Migdalas A., and Sifaleras A., "A hybrid particle swarm optimization - variable neighborhood search algorithm for constrained shortest path problems", European Journal of Operational Research, Vol. 261, No. 3, pp. 819-834, Elsevier Ltd., 2017.
  2. Sifaleras A. and Konstantaras I., "Variable neighborhood descent heuristic for solving reverse logistics multi-item dynamic lot-sizing problems", Computers & Operations Research, Elsevier Ltd., Vol. 78, pp. 385-392, 2017.
  3. Cunha J. Ο., Konstantaras I., Melo R. Α., and Sifaleras A., "On multi-item economic lot-sizing with remanufacturing and uncapacitated production", Applied Mathematical Modelling, Elsevier Ltd., Vol. 50, pp. 772-780, 2017.
  4. Souravlas S. and Sifaleras A., "Binary-tree based estimation of file requests for efficient data replication", IEEE Transactions on Parallel and Distributed Systems, Vol. 28, No. 7, pp. 1839-1852, 2017.
  5. Voulgaropoulou S., Samaras N., and Sifaleras A., "Computational complexity of the Exterior Point Simplex Algorithm", to appear in Operational Research. An International Journal, Springer Berlin / Heidelberg, 2017.
  6. Antoniadis N. and Sifaleras A., A hybrid CPU-GPU parallelization scheme of variable neighborhood search for inventory optimization problems, Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 58, pp. 47-54, 2017.
  7. Sifaleras A., Konstantaras I., and Mladenović N., "Variable neighborhood search for the economic lot sizing problem with product returns and recovery", International Journal of Production Economics, Elsevier Ltd., Vol. 160, pp. 133-143, 2015.
  8. Paparrizos K., Samaras N., and Sifaleras A., "Exterior Point Simplex-type Algorithms for Linear and Network Optimization Problems", Annals of Operations Research, Springer US, Vol. 229, No. 1, pp. 607-633, 2015.
  9. Sifaleras A. and Konstantaras I., "General variable neighborhood search for the multi-product dynamic lot sizing problem in closed-loop supply chain", Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 47, pp. 69-76, 2015.
  10. Psannis K.E., Xinogalos S., and Sifaleras A., "Convergence of Internet of Things and Mobile Cloud Computing", Systems Science & Control Engineering, Taylor & Francis Publications, Vol. 2, No. 1, pp. 476-483, 2014.
  11. Sifaleras A., "Minimum cost network flows: Problems, algorithms, and software", Yugoslav Journal of Operations Research, Vol. 23, No. 1, pp. 3-17, 2013.
  12. Lazaridis V., Samaras N., and Sifaleras A., "An empirical study on factors influencing the effectiveness of algorithm visualization", Computer Applications in Engineering Education, Wiley Periodicals, Inc., Vol. 21, No. 3, pp. 410-420, 2013.
  13. Geranis G. and Sifaleras A., "Dynamic trees in exterior-point Simplex-type algorithms for network flow problems", Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 41, pp. 93-100, 2013.
  14. Stiakakis E. and Sifaleras A., "Combining the Priority Rankings of DEA and AHP Methodologies: A Case Study on an ICT Industry", International Journal of Data Analysis Techniques and Strategies, Inderscience Enterprises Ltd., Vol. 5, No. 1, pp. 101-114, 2013.
  15. Geranis G., Paparrizos K., and Sifaleras A., "On a dual network exterior point simplex type algorithm and its computational behavior", RAIRO - Operations Research, EDP Sciences, Vol. 46, No. 3, pp. 211-234, 2012.
  16. Papamanthou Ch., Paparrizos K., Samaras N., and Sifaleras A., "On the initialization methods of an exterior point algorithm for the assignment problem", International Journal of Computer Mathematics, Taylor & Francis Publications, Vol. 87, No. 8, pp. 1831-1846, 2010.
  17. Voudouris K., Polemio M., Kazakis N., and Sifaleras A., "An agricultural decision support system for optimal land use regarding groundwater vulnerability", International Journal of Information Systems and Social Change, IGI Global, Vol. 1, No. 4, pp. 66-79, 2010.
  18. Paparrizos K., Samaras N., and Sifaleras A., "An exterior Simplex type algorithm for the minimum cost network flow problem", Computers & Operations Research, Elsevier Ltd., Vol. 36, No. 4, pp.1176-1190, 2009.
  19. Baloukas Th., Paparrizos K., and Sifaleras A., "An Animated Demonstration of the Uncapacitated Network Simplex Algorithm", INFORMS Transactions on Education, INFORMS, Vol. 10, No. 1, pp. 34-40, 2009.
  20. Geranis G., Paparrizos K., and Sifaleras A., "A dual exterior point simplex type algorithm for the minimum cost network flow problem", Yugoslav Journal of Operations Research, Vol. 19, No. 1, pp. 157-170, 2009.
  21. Samaras N., Sifaleras A., and Triantafyllidis C., "A primal - dual exterior point algorithm for linear programming problems", Yugoslav Journal of Operations Research, Vol. 19, No. 1, pp. 123-132, 2009.
  22. Andreou D., Paparrizos K., Samaras N., and Sifaleras A., "Visualization software of the network exterior primal simplex algorithm for the minimum cost network flow problem", Operational Research. An International Journal, Springer Berlin/Heidelberg, Vol. 7, No. 3, pp. 449-464, 2007.
  23. Lazaridis V, Paparrizos K., Samaras N., and Sifaleras A., "Visual LinProg: A Web-based Educational Software for Linear Programming", Computer Applications in Engineering Education, Wiley Periodicals, Inc., Vol. 15, No. 1, pp. 1-14, 2007.
  24. Karagiannis P., Markelis I., Paparrizos K., Samaras N., and Sifaleras A., "E - learning technologies: employing matlab web server to facilitate the education of mathematical programming", International Journal of Mathematical Education in Science and Technology, Taylor & Francis Publications, Vol. 37, No. 7, pp. 765-782, 2006.
  25. Andreou D., Paparrizos K., Samaras N., and Sifaleras A., "Application of a New Network - enabled Solver for the Assignment Problem in Computer - aided Education", Journal of Computer Science, Science Publications, Vol. 1, No. 1, pp. 19-23, 2005.

Editorials in Peer-Reviewed International Journals

  1. Pardo E.G. and Sifaleras A. (Eds.), 4th International Conference on Variable Neighborhood Search (ICVNS'16), Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 58, pp. 1-5, 2017.
  2. Mladenović N., Sifaleras A., and Sörensen K. (Eds.), "Editorial to the Special Cluster on Variable Neighborhood Search, Variants and Recent Applications", International Transactions in Operational Research, Wiley, Vol. 24, No. 3, pp. 507-508, 2017.
  3. Jarboui B., Sifaleras A., and Rebai A. (Eds.), "3rd International Conference on Variable Neighborhood Search (VNS'14)", Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 47, pp. 1-4, 2015.
  4. Sifaleras A., Paparrizos K., and Demyanov V.F. (Eds.), "Advances in Discrete Optimization", Optimization. A Journal of Mathematical Programming and Operations Research, Taylor & Francis Publications, Vol. 62, No. 8, pp. 1003-1006, 2013.
  5. Sifaleras A., Urošević D., and Mladenović N. (Eds.), "EURO Mini Conference (MEC XXVIII) on Variable Neighborhood Search", Electronic Notes in Discrete Mathematics, Elsevier B.V., Vol. 39, pp. 1-4, 2012.
  6. Sifaleras A., Papathanasiou J., and Demange M. (Eds.), "Editorial: Special issue on New Combinatorial Optimisation Models for Decision Making", International Journal of Applied Management Science, Inderscience Enterprises Ltd., Vol. 4, No. 3, pp. 219-223, 2012.
  7. Maros I, Arampatzis G., and Sifaleras A. (Eds.), "Editorial: Special issue οn Optimization Models in Environment and Sustainable Development", Operational Research, Springer Berlin/Heidelberg, Vol. 9, No 3, pp. 225-227, 2009.

Other scholarly writing in Peer-Reviewed International Journals

  1. Sifaleras A. and Davidović T., "Invited Report on BALCOR 2011 - 10th Balkan Conference on Operational Research", Yugoslav Journal of Operations Research, Vol. 21, No. 2, pp. 329-331, 2011.

Book Chapters

  1. Karakalidis A. and Sifaleras A., "Solving Portfolio Optimization Problems using AMPL", in E. Grigoroudis and M. Doumpos (Eds.), Operational Research in Business & Economics, Springer Proceedings in Business and Economics, pp. 167-184, 2017.
  2. Sifaleras A., "Classification of Network Optimization Software Packages", in Mehdi Khosrow-Pour (Ed.), Encyclopedia of Information Science and Technology, 3rd ed., IGI Global, Hershey, PA, USA, pp. 7054-7062, 2015.
  3. Stiakakis E. and Sifaleras A., "Evaluating the performance of decision making units in the food production industry", in B. Manos, K. Paparrizos, N. Matsatsinis, and J. Papathanasiou (Eds.), Decision Support Systems in Agriculture, Food and the Environment: Trends, Applications and Advances, IGI Global, Hershey, PA, USA, pp. 173-192, 2010.

Papers in Proceedings of International Conferences

  1. Souravlas S. and Sifaleras A., On minimizing memory and computation overheads for binary-tree based data replication, in Proc. of the 22nd IEEE Symposium on Computers and Communications (ISCC 2017), 3-6 July, Heraklion, Crete, pp. 1296-1299, 2017.
  2. Papalitsas Ch., Giannakis K., Andronikos Th., Theotokis D., and Sifaleras A., "Initialization methods for the TSP with time windows using variable neighborhood search", in IEEE Proc. of the 6th International Conference on Information, Intelligence, Systems and Applications (IISA 2015), 6-8 July, Corfu, Greece, 2015.
  3. Stiakakis E. and Sifaleras A., "Comparison of DEA Models Relating e-Health and Hospital Efficiency", in Proc. of the XLII International Symposium on Operations Research (SYM-OP-IS 2015), 15-18 September, Silver Lake Resort, Serbia, pp. 659-662, 2015.
  4. Argyriou G. and Sifaleras A., "An AMPL optimization software library for Data Envelopment Analysis", in Proc. of the XI Balkan Conference on Operational Research (BALCOR 2013), 7-10 September, Belgrade-Zlatibor, Serbia, pp. 105-113, 2013.
  5. Xinogalos S., Psannis K., and Sifaleras A., "Recent advances delivered by HTML 5 in mobile cloud computing applications: a survey", ACM International Conference Proceeding Series, in Proc. of the 5th Balkan Conference in Informatics (BCI 2012), 16-20 September, Novi Sad, Serbia, pp. 199-204, 2012.
  6. Geranis G., Paparrizos K., and Sifaleras A., "On the Computational Behavior of a Dual Network Exterior Point Simplex Algorithm for the Minimum Cost Network Flow Problem", in Proc. of the International Network Optimization Conference (INOC 2009), 26-29 April, Pisa, Italy, 2009.
  7. Ploskas N., Samaras N., and Sifaleras A., "A parallel implementation of an exterior point algorithm for linear programming problems", in Proc. of the 9th Balkan Conference on Operational Research (BALCOR 2009), 2-6 September, Constanta, Romania, 2009.
  8. Rossiou E. and Sifaleras A., "Blended Methods to Enhance Learning: An Empirical Study of Factors Affecting Student Participation in the use of e-Tools to Complement F2F Teaching of Algorithms", in Proc. of the 6th European Conference on e-Learning (ECEL 2007), 4-5 October, Copenhagen, Denmark, pp. 519-528, 2007.
  9. Samaras N., Sifaleras A., and Triantafyllidis C., "A primal - dual exterior point algorithm for linear programming problems", in Proc. of the 8th Balkan Conference on Operational Research (BALCOR 2007), 14-17 September, Belgrade-Zlatibor, Serbia, pp. 75-83, 2007.
  10. Geranis G., Paparrizos K., and Sifaleras A., "A dual exterior point simplex type algorithm for the minimum cost network flow problem", in Proc. of the 8th Balkan Conference on Operational Research (BALCOR 2007), 14-17 September, Belgrade-Zlatibor, Serbia, pp.137-147, 2007.
  11. Badr E. S, Moussa M., Paparrizos K., Samaras N., and Sifaleras A., "Some computational results on MPI Parallel Implementation of Dense Simplex Method". in Proc. of World Academy of Science, Engineering and Technology, Vol. 23, pp. 39-42, presented in the Seventeenth International Conference on Computer & Information Science and Engineering (CISE 2006), 8-10 December, Cairo, Egypt, 2006.
  12. Paparrizos K., Samaras N., and Sifaleras A., "Some preliminary results on the cycling problem for the network exterior point simplex algorithm", in Proc. of the Seventh International Conference on Operations and Quantitative Management (ICOQM-VII), 3-5 August, Jaipur, India, pp. 536-540, 2006.
  13. Karagiannis P., Paparrizos K., Samaras N., and Sifaleras A., "A new simplex type algorithm for the minimum cost network flow problem", in Proc. of the 7th Balkan Conference on Operational Research (BALCOR 2005), 25-28 May, Constanta, Romania, pp. 133-139, 2005.
  14. Baloukas Th, Paparrizos K., and Sifaleras A., "Promoting Operations Research education using a new web - accessible didactic tool", in Proc. of the 7th Balkan Conference on Operational Research (BALCOR 2005), 25-28 May, Constanta, Romania, pp. 393-398, 2005.
  15. Doulamis N., Karagiannis P., Sifaleras A., and Paparrizos K., "Dynamic video content decomposition: an efficient scheme for personalized video content navigation over the web", in Proc. of the 6th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2005), 13-15 April, Montreux, Switzerland, 2005.
  16. Doulamis N., Karagiannis P., Paparrizos K., Sifaleras A., and Doulamis A., "A Reconfigurable Mobile Agent Architecture Enhanced with Recursive Relevance Feedback Mechanism for Interactive Multimedia Retrieval", in Proc. of the 7th International Workshop of the EU Network of Excellence DELOS on Audio-Visual Content and Information Visualization in Digital Libraries (AVIVDiLib 2005), 4-6 May, Cortona, Italy, pp. 188-191, 2005.
  17. Paparrizos K., Samaras N., and Sifaleras A., "A learning tool for the visualization of general, directed or undirected rooted trees", in Morgan K. and Spector J.M. (Eds.), WIT Transactions on Information and Communication Technologies, Vol. 30, WIT Press, pp. 205-213, 2004, presented at the 1st International Conference on New Learning Paradigms and New Learning Tools (New Learning 2004), 10-12 May, Skiathos, Greece.
  18. Karagiannis P., Paparrizos K., Samaras N., and Sifaleras A., "Employing Mobile Agents to Secure Local Networks", in IEEE Proc. of the 1st International Conference on Information & Communication Technologies: From Theory to Applications (ICTTA 2004), 19-23 April, Damascus, Syria, pp. 501-502, 2004.
  19. Dosios K., Paparrizos K., Samaras N., and Sifaleras A., "An Efficient Modification of the Primal-Dual Two Paths Simplex Algorithm", in Proc. of the International Conference on Computational Methods in Sciences and Engineering (ICCMSE 2003), 12-16 September, Kastoria, Greece, Vol. 1, pp. 144-147, 2003.

Presentations in International Conferences

  1. Sifaleras A. and Koloniari G., "A survey of game-theoretic approaches in P2P networks", presented at the XI Balkan Conference on Operational Research (BALCOR 2013), 7-10 September, Belgrade-Zlatibor, Serbia, pp. 9, (book of abstracts), 2013.
  2. Argyriou G. and Sifaleras A., "Solving Data Envelopment Analysis problems using AMPL", presented at the Workshop on Efficiency in Higher Education, 24-25 June, Thessaloniki, Greece, pp. 11 (book of abstracts), 2013.
  3. Marinakis Y., Migdalas A., and Sifaleras A., "A hybrid Particle Swarm Optimization - Variable Neighborhood Search Algorithm for Constrained Shortest Path Problems", presented at the 28th EURO Mini Conference on Variable Neighborhood Search (MEC XXVIII - VNS), 4-7 October, Herceg Novi, Montenegro, pp. 21-22, (book of abstracts), 2012.
  4. Samaras N. and Sifaleras A., "Exterior Point Simplex-type Algorithms for Linear and Network Optimization Problems", In: 21st International Symposium on Mathematical Programming (ISMP 2012), 19-24 August, Berlin, Germany, pp. 107 (book of abstracts), 2012.
  5. Geranis G., Paparrizos K., and Sifaleras A., "Use of dynamic trees in the dual network exterior point simplex algorithm for the minimum cost network flow problem", presented at the 1st International Symposium and 10th Balkan Conference on Operational Research (BALCOR 2011), 22-25 September, Thessaloniki, Greece, pp. 99 (book of abstracts), 2011.
  6. Geranis G., Paparrizos K., and Sifaleras A., "On a dual network exterior point simplex algorithm for the minimum cost network flow problem and its empirical behavior", presented at the 21st Conference of the European Chapter on Combinatorial Optimization (ECCO XXI), 29-31 May, Dubrovnik, Croatia, p. 48 (book of abstracts), 2008.
  7. Paparrizos K., Samaras N., and Sifaleras A., "On the empirical behavior of a new network exterior point simplex algorithm for the minimum cost network flow problem", presented at the Veszprem Optimization Conference: Advanced Algorithms, (VOCAL 2006), 13-15 December, Veszprem, Hungary, p. 66 (book of abstracts), 2006.

Papers in Proceedings of Hellenic Conferences

  1. Karakalidis A. and Sifaleras A., "Solving Portfolio Optimization Problems using AMPL", in Proc. of the 4th International Symposium and 26th National Conference on Operational Research (HELORS), 4-6 June, Chania, Greece, pp. 267-271, 2015.
  2. Emmanouil E. and Sifaleras A., "Implementation of an open source optimization software package for Debian-based operating systems", in Proc. of the 2nd Student Conference of the Hellenic Operational Research Society (HELORS), 13-15 December, Piraeus, Greece, pp. 68-86, 2012.
  3. Karakostas P., Lazaridis A., and Sifaleras A., "Design & Optimization of Large Scale Networks: A Case Study on Electricity Transportation Networks", in Proc. of the Student Conference, organized by the University of Macedonia, 5 November, Thessaloniki, Greece, pp. 87-100, 2010.
  4. Stiakakis E., Sifaleras A., and Samaras N., "The transition from traditional healthcare to e-health: A case study on the evaluation of the performance of e-health providers", in Proc. of the 21st National Conference of Hellenic Operational Research Society (HELORS), 28-30 May, Athens, Greece, Vol. 1, pp. 48-70, 2009.
  5. Samaras N. and Sifaleras A., "A Comparative Computational Study of Exterior Point Algorithms for the Assignment Problem", in Proc. of the 19th National Conference of Hellenic Operational Research Society (HELORS), 21-23 June, Arta, Greece, 2007.
  6. Badr E. S, Paparrizos K., Samaras N., and Sifaleras A., "On the basis inverse of the exterior point simplex algorithm", in Proc. of the 17th National Conference of Hellenic Operational Research Society (HELORS), 16-18 June, Rio, Greece, pp. 677-687, 2005.
  7. Dosios K., Paparrizos K., Samaras N., and Sifaleras A., "NetPro, an Educational Platform for Network Optimization", in Proc. of the 16th National Conference of Hellenic Operational Research Society (HELORS), 25-27 September, Larisa, Greece, Vol. 1, pp. 287-295, 2003.
  8. Dosios K, Paparrizos K, Papatzikos N, and Sifaleras A, "LinPro, an Educational Informational System for Linear Programming", in Proc. of the 15th National Conference of Hellenic Operational Research Society (HELORS), 31/10 - 1/11, Tripoli, Greece, pp. 182-189, 2002.

Presentations in Hellenic Conferences

  1. Lelaki K. and Sifaleras A., "Facility location: Mathematical models and applications", presented at the 12th Student Conference on Management Science and Technology, 14 May, Athens, Greece, pp. 97-99 (book of abstracts), 2015, (in Greek).
  2. Stiakakis E. and Sifaleras A., "Comparing DEA and AHP Methodologies: A Case Study on Information and Communication Technology Industries", presented at the 7th Multicriteria Decision Analysis meeting, 30/9-2/10, Orestiada, (book of abstracts), 2010.
  3. Geranis G., Paparrizos K., and Sifaleras A., "Computational experience with a dual network exterior point simplex algorithm for the minimum cost network flow problem", presented at the 20th National Conference of Hellenic Operational Research Society (HELORS), 19-21 June, Spetses, Greece, pp. 25-26 (book of abstracts), 2008.

Papers in Scientific Magazines

  1. Paparrizos K. and Sifaleras A., "Combinatorial optimization and its use in modeling military applications" (in Greek), Joint Review, ADISPO Publications, Vol. 12, pp. 51-62, 2008.
  2. Paparrizos K. and Sifaleras A., "Operations research algorithms and their applications in the armed forces" (in Greek), Joint Review, ADISPO Publications, Vol. 11, pp. 90-99, 2008.