Publications

• E. K. Burke, M. Hyde, G. Kendall, G. Ochoa, E. Özcan, and J. Woodward (2010). A Classification of Hyper-heuristic Approaches. In Gendreau, Michel and Potvin, Jean-Yves (eds.), Handbook of Metaheuristics, International Series in Operations Research & Management Science, Volume 146, pp. 449-468. Springer. [PDF]
• E. K. Burke, M. Hyde, G. Kendall, G. Ochoa, E. Özcan, and J. Woodward (2009). Exploring hyper-heuristic methodologies with genetic programming. In C. Mumford and L. Jain (eds.), Computational Intelligence, Intelligent Systems Reference Library, pp. 177-201. Springer. [PDF]
• E. Ozcan, Towards an XML based standard for Timetabling Problems: TTML, Multidisciplinary Scheduling: Theory and Applications, Springer Verlag, 163 (24), May 2005. [PDF]

Journal/Conference Papers

• B. Kiraz, S. Uyar, E. Özcan, Selection Hyper-heuristics in Dynamic Environments, .
• J. Swan, M. Edjvet, E. Özcan, and G. Kendall, Augmenting Metaheuristics with Rewriting Systems, -.
• S. Martin, D. Ouelhadja, P. Beullens, E. Özcan, A Generic Agent-based Framework for Cooperative Search Using Pattern Matching and Reinforcement Learning, -.
• S.Abdul-Rahman, A. Bargiela, E. K. Burke, E. Özcan, B. McCollum, P. McMullan, Adaptive Linear Combination of Heuristic Orderings for Constructing Examination Timetable, -.
• M. Maashi, G. Kendall, E. Özcan, A Choice Function based Hyper-heuristic for Multi-objective Optimisation, -.
• J. Drake, E. Özcan, E. K. Burke, Controlling Crossover in a Selection Hyper-heuristic Framework, -.
• E. K. Burke, M. Gendreau, M. Hyde, G. Kendall, G. Ochoa, E. Özcan, R. Qu, Hyper-heuristics: A Survey of the State of the Art, to appear in the Journal of the Operational Research Society.

• J.C. O.-Bayliss, H. T.-Marin, S. E. Conant-Pablos, E. Özcan, A. J. Parkes, Improving the Performance of Vector Hyper-heuristics through Local Search, GECCO 2012, accepted.
• A. J. Parkes, E. Özcan, M. Hyde, Matrix Analysis of Genetic Programming Mutation, EuroGP 2012, pp. 158-169.
• J. Swan, E. Özcan, G. Kendall, Co-evolving Add and Delete Heuristics, extended abstract, PATAT 2012.
• P. Smet, S. Martin, D. Ouelhadj, E. Özcan and G. Vanden Berghe, Investigation of Fairness Measures for Nurse Rostering, extended abstract, PATAT 2012.
• P. K. Lehre, E. Özcan, A Time-Complexity Analysis of Hyper-Heuristics, abstract, ECCO 2012.
• E. Özcan, A. Kheiri, Round-robin strategy-based selection hyper-heuristic, abstract, ECCO 2012.
• G. Secme, L. Ozbakir, E. Özcan, A Hyper-heuristic Approach to Parallel Assembly Line Balancing Problems, abstract, ECCO 2012.
• E. Özcan, A. J. Parkes, A. Alkan, The Interleaved Constructive Memetic Algorithm and its Application to Timetabling, Computers & Operations Research, Volume 39, Issue 10, 2012, pp. 2310–2322, doi:10.1016/j.cor.2011.11.020. [PDF]

• S. Abdul-Rahman, E. K. Burke, A. Bargiela, B. McCollum and E. Özcan, A Constructive Approach to Examination Timetabling based on Adaptive Decomposition and Ordering, Annals of Operations Research, DOI: 10.1007/s10479-011-0999-8, 2011. [PDF]
• E. Özcan, and A. Kheiri, A Hyper-heuristic based on Random Gradient, Greedy and Dominance, Erol Gelenbe, Ricardo Lent, Georgia Sakellari (Eds.) Computer and Information Sciences II: 26th International Symposium on Computer and Information Sciences, pp.404-409, 2011. [PDF]
• E. Özcan, and A. J. Parkes, Policy Matrix Evolution for Generation of Heuristics, Proceedings of the 13th Annual Conference on Genetic and Evolutionary Computation (GECCO '11), Natalio Krasnogor (Ed.). ACM, New York, NY, USA, pp. 2011-2018 (won the best paper award in the Self-* track), 2011 [original-PDF]. [PDF]
• J. Swan, E. Özcan, G. Kendall, Hyperion - A Recursive Hyper-heuristic Framework, The Learning and Intelligent OptimizatioN Conference (LION5), Lecture Notes in Computer Science 6683, pp. 616-630, 2011. [PDF]
• B. Kiraz, A. Sima Uyar, and E. Özcan, An Investigation of Selection Hyper-heuristics in Dynamic Environments, Applications of Evolutionary Computation, LNCS 6624, pp. 314-323, 2011 [original-PDF]. [PDF]
• J.C. O.-Bayliss, H. T.-Marin, E. Özcan, A. J. Parkes, S.E.C.-Pablos, Variable and Value Ordering Decision Matrix Hyper-heuristics: a Local Improvement Approach, Mexican International Conference on Artificial Intelligence (MICAI 2011), I. Batyrshin and G. Sidorov (Eds.), LNAI 7094, pp. 125-136, 2011. [PDF]
• J.C. O.-Bayliss, H. Terashima-Marin, E. Özcan, A. J. Parkes, On the Idea of Evolving Decision Matrix Hyper-Heuristics for Solving Constraint Satisfaction Problems, Proceedings of the 13th annual conference companion on Genetic and evolutionary computation, pp. 255-256, 2011. [PDF]
• John H. Drake, Ender Özcan and Edmund K. Burke, Controlling Crossover in a Selection Hyper-heuristic Framework, OR53 Annual Conference, abstract. [PDF]
• E. Özcan and A. Kheiri, A Dominance based Hyper-heuristic, OR53 Annual Conference, abstract.
• S. P. Martin, D. Ouelhadj, P. Beullens and E. Özcan, Multi-agent cooperative search using meta-heuristics and reinforcement learning, OR53 Annual Conference, abstract.
• J. Gibbs, G. Kendall and E. Özcan, Scheduling English Football Fixtures over the Holiday Period Using Hyper-heuristics, 11th International Conference on Parallel Problem Solving From Nature, Lecture Notes in Computer Science, Volume 6238, pp. 496-505, 2011. [PDF]

• E. K. Burke, G. Kendall, M. Misir and E. Özcan, Monte Carlo hyper-heuristics for examination timetabling, Annals of Operations Research, DOI 10.1007/s10479-010-0782-2, 2010 (online). [PDF]
• E. Özcan, M. Misir , G. Ochoa, E. K. Burke, A Reinforcement Learning - Great-Deluge Hyper-heuristic for Examination Timetabling, International Journal of Applied Metaheuristic Computing, 1(1), pp. 39-59, 2010. [PDF]
• S.A. Rahman, A. Bargiela, E. K. Burke, B. McCollum and E. Özcan, A Construction Approach for Examination Timetabling based on Adaptive Decomposition and Ordering, Proc. of the 8th International Conference on the Practice and Theory of Automated Timetabling, pp. 353-372, 2010. [PDF]
• J.C. O.-Bayliss, E. Özcan, A. J. Parkes and H. Terashima-Marin, Mapping the Performance of Heuristics for Constraint Satisfaction, IEEE Congress on Evolutionary Computation 2010: 1-8. [PDF]
• S. Martin, D. Ouelhadj, P. Beullens, E. Özcan, A generic agent-based framework for cooperative hybrid meta-heuristic search, The EURO XXIV conference.
• A. Parkes, E. Özcan, Properties of Yeditepe Examination Timetabling Benchmark Instances, Proc. of the 8th International Conference on the Practice and Theory of Automated Timetabling, pp. 531-534, 2010. [PDF]

• Ö. B. Asik, E. Özcan, Bidirectional Best-fit Approach for Orthogonal Rectangular Strip Packing, Annals of Operations Research, 172:405-427, 2009 (http://dx.doi.org/10.1007/s10479-009-0642-0) [best results in literature, original-PDF]. [PDF]
• E. Özcan, C. Basaran, A Case Study of Memetic Algorithms for Constraint Optimization, Soft Computing: A Fusion of Foundations, Methodologies and Applications, 13(8-9), pp. 871-882, 2009 [original-PDF]. [PDF]
• E. Özcan, Y. Bykov, M. Birben and E. K. Burke, Timetabling Using Late Acceptance Hyper-heuristics, Proc. of the IEEE Congress on Evolutionary Computation (CEC 2009), pp. 997-1004. [PDF]
• S.A. Rahman, A. Bargiela, E. K. Burke, B. McCollum and E. Özcan, Construction of Examination Timetables Based on Ordering Heuristics, Proc. of the 24th International Symposium on Computer and Information Sciences, pp. 727-732, 2009. [PDF]
• M. Hyde, E. Özcan and E. K. Burke, Multilevel Search for Evolving the Acceptance Criteria of a Hyper-Heuristic, Proc. of the 4th Multidisciplinary Int. conf. on Scheduling: Theory and Applications, pp. 798-801, 2009. [PDF]
• E. Özcan and E. K. Burke, Multilevel search for choosing hyper-heuristics, Proc. of the 4th Multidisciplinary Int. conf. on Scheduling: Theory and Applications, pp. 788-789, 2009. [PDF]
• E. Özcan, M. Misir and E. K. Burke, A Self-Organising Hyper-heuristic Framework, Proc. of the 4th Multidisciplinary Int. conf. on Scheduling: Theory and Applications, pp. 784-787, 2009. [PDF]
• E. Özcan, S. E. Uyar and E. K. Burke, A greedy hyper-heuristic in dynamic environments, Proc. of the 11th annual conference companion on Genetic and Evolutionary Computation COnference, WORKSHOP SESSION: Automated heuristic design: crossing the chasm for search methods, pp. 2201-2204, 2009. [PDF]
• D. Ouelhadj, S. Petrovic and E. Özcan, A Multi-level Search Framework for Asynchronous Cooperation of Multiple Hyper-heuristics, Proc. of the 11th annual conference companion on Genetic and Evolutionary Computation COnference, WORKSHOP SESSION: Automated heuristic design: crossing the chasm for search methods, pp. 2193-2196, 2009. [PDF]
• I. Maden, S. Uyar, and E. Özcan, Landscape Analysis Of Simple Perturbative Hyper-Heuristics, Mendel 2009: 15th International Conference on Soft Computing, pp. 16-22, 2009.

• E. Özcan, M. Kalender, E. K. Burke, A Greedy-Gradient - Simulated Annealing Hyper-heuristic, accepted and presented in the Workshop on Hyper-heuristics (in PPSN X), 2008.
• M. Birben, K. Esen, E. E. Korkmaz, B. Kulahcioglu, E. Özcan, Grouping Hyper-heuristics, accepted and presented in the Workshop on Hyper-heuristics (in PPSN X), 2008.
• Ö. Ülker, E. E. Korkmaz, and E. Özcan, A Genetic Algorithm Using Linear Linkage Encoding for Bin Packing, The 10th International Conference on Parallel Problem Solving From Nature, Springer-Verlag, Lecture Notes in Computer Science, vol. 5199, pp. 1140-1149, 2008. [PDF]
• E.K. Burke, M. Mısır, G. Ochoa, E. Özcan, Learning Heuristic Selection in Hyperheuristics for Examination Timetabling, Proc. of the Conference on the Practice and Theory of Automated Timetabling, pp. 1-4. [PDF]
• E.K. Burke, G. Kendall, M. Mısır, E. Özcan, A Study of Simulated Annealing Hyperheuristics, Proc. of the Conference on the Practice and Theory of Automated Timetabling, 2008, pp. 1-4. [PDF]
• Ender Özcan, Türker Erçal, A Genetic Algorithm for Generating Improvised Music, LNCS 4926, revised and selected papers, EA 2007, pp. 266 – 277, 2008. [PDF]
• Ender Özcan, Burak Bilgin, Emin Erkan Korkmaz, A Comprehensive Analysis of Hyper-heuristics, Intelligent Data Analysis, 12:1, pp. 3-23, 2008. [PDF]

• Hamdi Dibeklioglu, Metin Sezgin, Ender Ozcan, A Recognizer for Free-Hand Graph Drawings, In Proc. of the International Workshop on Pen-Based Learning Technologies, Catania, Italy, May 24-25 2007. [PDF]
• Ender Özcan, Alpay Alkan, A Memetic Algorithm for Solving a Timetabling Problem: An Incremental Strategy, Proc. of the 3rd Multidisciplinary Int. Conf. On Scheduling: Theory and Applications, P. Baptiste, G. Kendall, A. M. Kordon, F. Sourd (ed.), pp. 394-401, 28-31 August 2007, Paris, France. [PDF]
• Ersan Ersoy, Ender Özcan, Şima Uyar, Memetic Algorithms and Hyperhill-climbers, Proc. of the 3rd Multidisciplinary Int. Conf. On Scheduling: Theory and Applications, P. Baptiste, G. Kendall, A. M. Kordon, F. Sourd (ed.), pp. 159-166, 28-31 August 2007, Paris, France. [PDF]
• Ender Özcan, Memes, Self-generation and Nurse Rostering, PATAT2006, Springer-Verlag, selected papers, LNCS, vol. 3867, 2007, pp. 85-104. [PDF]
• Burak Bilgin, Ender Özcan, Emin Erkan Korkmaz, An Experimental Study on Hyper-Heuristics and Exam Timetabling, PATAT2006, Springer-Verlag, selected papers, LNCS, vol. 3867, 2007, pp. 394-412. [PDF]
• Özgür Ülker, Ender Özcan, Emin Erkan Korkmaz, Linear Linkage Encoding in Grouping Problems: Applications on Graph Coloring and Timetabling, PATAT2006, Springer-Verlag, selected papers, LNCS, vol. 3867, 2007, 347-363. [PDF]
• Ender Özcan, Murat Yılmaz, Particle Swarms for Multimodal Optimization, B. Beliczynski et al. (Eds.): ICANNGA07, Springer-Verlag, Lecture Notes in Computer Science, vol. 4431, 366-375. [PDF]
• Ender Özcan, Esin Onbaşıoğlu, Memetic Algorithms for Parallel Code Optimization, International Journal of Parallel Programming, Volume 35, Number 1 / February, 33-61. [PDF]

• Ender Özcan, An Empirical Investigation on Memes, Self-generation and Nurse Rostering, Proc. of the 6th International Conference on the Practice and Theory of Automated Timetabling, 2006, 246-263. [PDF]
• Burak Bilgin, Ender Özcan, Emin Erkan Korkmaz, An Experimental Study on Hyper-Heuristics and Exam Timetabling, Proc. of the 6th International Conference on the Practice and Theory of Automated Timetabling, 2006, 123-140. [PDF]
• Ender Özcan, Burak Bilgin, Emin Erkan Korkmaz, Hill Climbers and Mutational Heuristics in Hyperheuristics, Lecture Notes in Computer Science, Springer-Verlag, The 9th International Conference on Parallel Problem Solving From Nature, 2006, pp. 202-211. [PDF]
• Özgür Ülker, Ender Özcan, Emin Erkan Korkmaz, Linear Linkage Encoding in Grouping Problems: Applications on Graph Coloring and Timetabling, Proc. of the 6th International Conference on the Practice and Theory of Automated Timetabling, 2006, 303-319. [PDF]

• E. Ozcan, Memetic Algorithms for Nurse Rostering, Lecture Notes in Computer Science, Springer-Verlag, The 20th International Symposium on Computer and Information Sciences, vol. 3733, pp. 482-492, 2005. [PDF]
• E. Ozcan, E. Ersoy, Final Exam Scheduler - FES, Proc. of 2005 IEEE Congress on Evolutionary Computation, vol. 2, pp 1356-1363, September 2005. [PDF]
• E. Ozcan, Towards an XML based standard for Timetabling Problems: TTML, Multidisciplinary Scheduling: Theory and Applications, Springer Verlag, 163 (24), May 2005. [PDF]

• E. Ozcan, and M. Erenturk, A Brief Review of Memetic Algorithms for Solving Euclidean 2D Traveling Salesrep Problem, Proc. of the 13th Turkish Symposium on Artificial Intelligence and Neural Networks, pp. 99-108, June 2004. [PDF]
• E. Ozcan, and B. Hulagu, A Simple Intelligent Agent for Playing Abalone Game: ABLA, Proc. of the 13th Turkish Symposium on Artificial Intelligence and Neural Networks, pp. 281-290, June 2004. [PDF]
• E. Ozcan, E. Onbasioglu, Genetic Algorithms for Parallel Code Optimization, Proc. of 2004 IEEE Congress on Evolutionary Computation, vol. 2, pp. 1775-1781. [PDF]
• E. Özcan, Ş. E. Şeker, Z. İ. Karadeniz, Generating Java Class Skeleton Using A Natural Language Interface, Proc. of the 1st International Workshop on Natural Language Understanding and Cognitive Science, NLUCS - 2004, In conjunction with ICEIS 2004, pp. 126-134, April 2004. [PDF]

• A. Alkan, E. Ozcan, Memetic Algorithms for Timetabling, Proc. of 2003 IEEE Congress on Evolutionary Computation, pp. 1796-1802, December 2003. [PDF]
• E. Ozcan, Towards an XML based standard for Timetabling Problems: TTML, Proc. of the First Multidisciplinary International Conference on Scheduling: Theory and Applications, pp.566-569, August 2003. [PDF]

• E. Ozcan, A. Alkan, Timetabling using a Steady State Genetic Algorithm, Proc. of the 4th International Conference on the Practice and Theory of Automated Timetabling, pp.104-107, August 2002. [PDF]

• E. Ozcan, C. K. Mohan, Particle Swarm Optimization: Surfing the Waves (66K, compressed ps file), Proc. of IEEE 1999 Congress on Evolutionary Computation, pp. 1939-1944, Piscataway, NJ: IEEE Service Center. [PDF]

• E. Ozcan, Analysis of Particle Velocities in a Particle Swarm Optimization System, 8th Turkish Symposium on Artificial Intelligence and Neural Networks, pp. 257-266, June 1999.

• E. Ozcan, Shape matching using Genetic Algorithms, PhD Thesis, Syracuse University, August 1998.
• E. Ozcan, C. K. Mohan, Analysis of a Simple PSO System, Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 8, pp. 253-258, October 1998. [PDF]
• E. Ozcan, C. K. Mohan, Steady State Memetic Algorithm for Partial Shape Matching, Lecture Notes in Computer Science, V. William Porto and N. Saravanan and Donald E. Waagen and A. E. Eiben, Ed., Evolutionary Programming VII, 7th International Conference, EP98, San Diego, CA, USA, Springer, Berlin, vol. 1447, pp. 527-536, March 25-27 1998.. [PDF]

• E. Ozcan, C. K. Mohan, Partial Shape Matching using Genetic Algorithms, Pattern Recognition Letters, 18:987-992, October 1997. [PDF]

• E. Ozcan, C. K. Mohan, Simulated Annealing and Genetic Algorithms for Partial Shape Matching, Proc. of IEEE XI Intl. Symp. on Computer and Information Sciences, pp. 173-181, Nov. 1996. [PDF]
• E. Ozcan, C. K. Mohan, Shape Recognition using Genetic Algorithms, Proc. of IEEE Intl. Conf. on Evolutionary Computation, pp. 414-420, May 1996.

[TR] Publications

• E. Yavuz, E. Ozcan, E. E. Korkmaz, Türkiye Haritası Üzerinde Gezgin Satıcı Probleminin Karınca Sistemleri ile Çözülmesi, The 14th Turkish Symposium on Artificial Intelligence and Neural Networks, pp. 193-200, 16-17 June 2005. [PDF]

• I. Maden, S. Demir, E. Ozcan, Türkçe’ den SQL Sorgularına Çeviri Yapan Bir Doğal Dil İşleme Uygulaması (NALAN-TS) (Turkish Natural Language Interface For Generating SQL Queries (NALAN-TS)), TBD 20. Ulusal Bilisim Kurultayı, December 2003, presented. [PDF]
• O. Ulker, E. Ozcan, Çizge Boyama Problemleri İçin Evrimsel Tabu Arama Algoritması (ETA) (Evolutionary Tabu Search Algorithm For Graph Coloring Problem), TBD 20. Ulusal Bilisim Kurultayı, December 2003, presented. [PDF]
• E. Ozcan, Zaman Çizelgeleme Problemleri İçin Standart Bir Veri Formatı Çalışması: TTML, Proc. of the 12thTurkish Symposium on Artificial Intelligence and Neural Networks, pp. 51-53, July 2003. [PDF]

• E. Ozcan, A. Alkan, Çok Nüfuslu Kararlı Hal Genetik Algoritması Kullanarak Otomatik Çizelgeleme, TBD 19. Bilişim Kurultayı, pp. 149-155, September 2002. [PDF]

UnRefereed Publications

• E. Ozcan, Türkiye’deki Üniversitelerde İnternet Tabanlı Akademik Kayıt ve Not Takip Sistemleri (Internet based Academic Registration and Grade Follow-up Systems in Turkey), Akademik Bilisim 2003, ref.100., Akademik Bilisim 2003, ref.100. [PDF]
• E.Ozcan, A. Akan, S. Demir, M. A. Ergin, H. Kul, S. E. Seker, STARS - Öğrenci Transkript ve Ders Kayıt Sistemi, Açık Kaynaklı Bir İnternet Uygulaması (STARS - Student Transcript, Administration and Registration System, an Open Source Internet Application), Akademik Bilisim 2003, ref.87. [PDF]