Hardcopy reprints are available for the following papers.

- H. Chen, F. Tang, P. Tino, A. Cohn and X. Yao, "Model Metric
Co-learning for Time Series Classification,"
*Proc. of the 24th International Joint Conference on Artificial Intelligence (IJCAI'2015)*, pp.3387-3394. 25/7-1/8/2015, Buenos Aires, Argentina. - L. Zhang, K. Tang and X. Yao,
"Increasingly Cautious Optimism for
Practical PAC-MDP Exploration,"
*Proc. of the 24th International Joint Conference on Artificial Intelligence (IJCAI'2015)*, 4033-4040. 25/7-1/8/2015, Buenos Aires, Argentina. - S. Liu, Y. Wei, K. Tang, K. Qin and X. Yao, ``QoS-aware long-term based
service composition in cloud computing,''
*Proc. of the 2015 IEEE Congress on Evolutionary Computation (CEC'2015)*, pp.3362-3369, 25-28/5/2015, Sendai, Japan. - Y. Mei, X. Li, F. Salim and X. Yao, ``Heuristic Evolution with
Genetic Programming for Traveling Thief Problem,''
*Proc. of the 2015 IEEE Congress on Evolutionary Computation (CEC'2015)*, pp.2753-2760, 25-28/5/2015, Sendai, Japan. - Y. Mei, X. Li and
**X. Yao**, ``Improving Efficiency of Heuristics for the Large Scale Traveling Thief Problem,''*Proc. of the 10th International Conference on Simulated Evolution And Learning (SEAL 2014)*, Lecture Notes in Computer Science Volume 8886, 2014, pp.631-643, Springer-Verlag, Berlin. - P.A. Consoli, L.L. Minku and X. Yao, ``Dynamic Selection of
Evolutionary Algorithm Operators Based on Online Learning and Fitness
Landscape Metrics,''
*Proc. of the 10th International Conference on Simulated Evolution And Learning (SEAL 2014)*, Lecture Notes in Computer Science Volume 8886, 2014, pp.359-370, Springer-Verlag, Berlin. - X. Lu, S. Menzel, K. Tang and X. Yao, ``The Performance Effects of
Interaction Frequency in Parallel Cooperative Coevolution,''
*Proc. of the 10th International Conference on Simulated Evolution And Learning (SEAL 2014)*, Lecture Notes in Computer Science Volume 8886, 2014, pp.82-93, Springer-Verlag, Berlin. - L. Song, L. L. Minku and
**X. Yao**, ``The potential benefit of relevance vector machine to software effort estimation,''*Proceedings of the 10th International Conference on Predictive Models in Software Engineering (PROMISE'14)*, pp.52-61, ACM New York, NY, USA, 17/9/2014. - N. Jin and
**X. Yao**, ``Heuristic optimization for software project management with impacts of team efficiency,''*Proc. of the 2014 IEEE Congress on Evolutionary Computation (CEC'14)*, pp.3016-3023, July 2014, IEEE Press. - B. Li, J. Li, K. Tang and
**X. Yao**, ``An improved Two Archive Algorithm for Many-Objective optimization,''*Proc. of the 2014 IEEE Congress on Evolutionary Computation (CEC'14)*, pp.2869-2876, IEEE Press, July 2014. - T. Weise, M. Wan, K. Tang and
**X. Yao**, ``Evolving exact integer algorithms with Genetic Programming,''*Proc. of the 2014 IEEE Congress on Evolutionary Computation (CEC'14)*, pp.1816-1823, IEEE Press, July 2014. - H. Fu, P.R. Lewis, B. Sendhoff, K. Tang and
**X. Yao**, ``What are dynamic optimization problems?''*Proc. of the 2014 IEEE Congress on Evolutionary Computation (CEC'14)*, pp.1550-1557, IEEE Press, July 2014. - S. Wang, L. Minku and
**X. Yao**, ``A multi-objective ensemble method for online class imbalance learning,''*Proc. of the 2014 International Joint Conference on Neural Networks (IJCNN'14)*, pp.3311-3318, IEEE Press, July 2014. - L. Minku and
**X. Yao**, ``How to Make Best Use of Cross-company Data in Software Effort Estimation?''*Proc. of the 36th International Conference on Software Engineering (ICSE'14)*, Hyderabad, India, 31/5-7/6/2014, pp.446-456, IEEE Press. - P. Consoli and
**X. Yao**, ``Diversity-Driven Selection of Multiple Crossover Operators for the Capacitated Arc Routing Problem,''*Evolutionary Computation in Combinatorial Optimisation (EvoCOP 2014))*, Lecture Notes in Computer Science Volume 8600, 2014, pp.97-108, Springer-Verlag, Berlin. - F. Faniyi, P. R. Lewis, R. Bahsoon and
**X. Yao**, ``Architecting Self-Aware Software Systems,''*Proc. of the 2014 IEEE/IFIP Conference on Software Architecture (WICSA)*, Sydney, Australia, 7-11 April 2014, pp.91-94. IEEE Press. - L. Song, L. L. Minku and
**X. Yao**, ``The impact of parameter tuning on software effort estimation using learning machines,''*Proceedings of the 9th International Conference on Predictive Models in Software Engineering (PROMISE'13)*, 9 October 2013, Baltimore, MD, USA, - L. L. Minku and
**X. Yao**, ``An analysis of multi-objective evolutionary algorithms for training ensemble models based on different performance measures in software effort estimation,''*Proceedings of the 9th International Conference on Predictive Models in Software Engineering (PROMISE'13)*, 9 October 2013, Baltimore, MD, USA. - L. Esterle, P. R. Lewis, H. Caine,
**X. Yao**and B. Rinner, ``CamSim: A distributed smart camera network simulator,''*Proc. of the 2013 IEEE 7th International Conference on Self-Adaptation and Self-Organizing Systems Workshops (SASOW)*, 9-13 September 2013, Philadelphia, PA, USA, pp.19-20, IEEE Press. - P. R. Lewis, L. Esterle, A. Chandra, B. Rinner and
**X. Yao**, ``Learning to be different: Heterogeneity and efficiency in distributed smart camera networks,''*Proc. of the 2013 IEEE 7th International Conference on Self-Adaptation and Self-Organizing Systems (SASO)*, 9-13 September 2013, Philadelphia, PA, USA, pp.209-218, IEEE Press. - W. Fang, J. Sun, X. Wu and
**X. Yao**, ``Re-scheduling in railway networks,''*Proc. of the 13th UK Workshop on Computational Intelligence (UKCI)*, 9-11 September 2013, Guildford, UK, pp.342-352, IEEE Press. - P. R. Lewis, W. C. Chibamu and
**X. Yao**, ``Towards a dynamic evolutionary approach to fpga temperature management,''*Proc. of 2nd Workshop on Self-Awareness in Reconfigurable Computing Systems (SRCS'13)*, (ed.) Tobias Becker, pp.22-27, 5 September 2013, Porto, Portugal. -
**X. Yao**, ``Some Recent Work on Multi-objective Approaches to Search-Based Software Engineering,'' (Keynote paper)*Proc. of the 5th Symposium on Search-Based Software Engineering (SSBSE'13)*, pp.4-15, LNCS 8084, Springer, August 2013. - H. Chen, F. Tang, P. Tino and
**X. Yao**, ``Model-based kernel for efficient time series analysis,''*Proceedings of the 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD'13)*, pp.392-400, Auguts 2013. - S. Wang, L. L Minku, D. Ghezzi, D. Caltabiano, P. Tino and
**X. Yao**, ``Concept drift detection for online class imbalance learning,''*Proc. of the 2013 International Joint Conference on Neural Networks (IJCNN)*, 4-9 August 2013, Dallas, TX, USA, pp.1-10, IEEE Press. - A. Chandra, R. Allmendinger, P. R. Lewis,
**X. Yao**and J. Torresen, ``Exposing market mechanism design trade-offs via multi-objective evolutionary search,''*Proc. of IEEE Congress on Evolutionary Computation (CEC'13)*, pp.1515-1522, Cancun, Maxico, June 2013. - Y. Mei, X. Li and
**X. Yao**, ``Decomposing Large-Scale Capacitated Arc Routing Problems using a Random Route Grouping Method,''*Proc. of IEEE Congress on Evolutionary Computation (CEC'13)*, pp.1013-1020, Cancun, Maxico, June 2013. - J. Wang, K. Tang and
**X. Yao**, ``A memetic algorithm for uncertain Capacitated Arc Routing Problems,''*Proc. of IEEE Congress on Evolutionary Computation (CEC'13)*, pp.72-79, Cancun, Maxico, June 2013. -
**X. Yao**, ``Challenges and Opportunities in Dynamic Optimisation,''*Proceeding of the 15th Annual Conference on Genetic and Evolutionary Computation Conference (GECCO 2013) Companion*, Amsterdam, The Netherlands, pp.1761-1762, ACM Press. (Keynote Talk) - G. Nebehay, W. Chibamu, P. R. Lewis, A. Chandra, R. Pflugfelder and
**X. Yao**, ``Can Diversity amongst Learners Improve Online Object Tracking?''*Proc. of the 11th International Workshop on Multiple Classifier Systems*, LNCS 7872, Z.-H. Zhou, F. Roli and J. Kittler (Eds.), pp.212-223, May 2013, Springer-Verlag, Berlin. - R. Wang, W. Dong, Y. Wang, K. Tang and
**X. Yao**, ``Pipe failure prediction: A data mining method,''*Proc. of the 29th IEEE International Conference on Data Engineering (ICDE 2013)*, Brisbane, Australia, pp.1208-1218, April 2013. - H. Fu, B. Sendhoff, K. Tang and
**X. Yao**, ``Finding Robust Solutions to Dynamic Optimization Problems,''*Proc. of EvoApplications 2013*, LNCS 7835, A. I. Esparcia-Alc\'azar et al. (Eds.), pp.616-625, April 2013, Springer-Verlag, Berlin. - L. Esterle, B. Rinner, P. R Lewis and
**X. Yao**, ``Improved adaptivity and robustness in decentralised multi-camera networks,''*Proc. of the Sixth International Conference on Distributed Smart Cameras (ICDSC)*, pp.1-6, IEEE Press, 30 October -- 2 November 2012. - L. L. Minku and
**X. Yao**, ``Can Cross-company Data Improve Performance in Software Effort Estimation?''*Proc. of the 2012 Conference on Predictive Models in Software Engineering (PROMISE'12)*, Lund, Sweden, 21-22 September 2012. DOI: 10.1145/2365324.2365334. - M. Harman, E. Burke, J. Clark and
**X. Yao**, ``Dynamic adaptive search based software engineering,''*Proc. of the ACM-IEEE International Symposium on Empirical Software Engineering and Measurement (ESEM'12)*, pp.1-8, ACM Press, Lund, Sweden, 19-20 September 2012. - Q. Huang, T. White, G. Jia, M. Musolesi, N. Turan, K.
Tang, S. He, J. K. Heath and
**X. Yao**, ``Community Detection Using Cooperative Co-evolutionary Differential Evolution,''*Proc. of the 12th International Conference on Parallel Problem Solving from Nature (PPSN XII)*, C. A.Coello Coello, V. Cutello, K. Deb, S. Forrest, G. Nicosia and M. Pavone (eds.), Lecture Notes in Computer Science, Volume 7492/2012, pp.235-244, Taormina, Italy, 1-5 September 2012. - M. Mavrovouniotis, S. Yang and
**X. Yao**, ``A Benchmark Generator for Dynamic Permutation-Encoded Problems,''*Proc. of the 12th International Conference on Parallel Problem Solving from Nature (PPSN XII)*, C. A.Coello Coello, V. Cutello, K. Deb, S. Forrest, G. Nicosia and M. Pavone (eds.), Lecture Notes in Computer Science, Volume 7492/2012, pp.508-517, Taormina, Italy, 1-5 September 2012. - A. Mambrini, D. Sudholt and
**X. Yao**, ``Homogeneous and Heterogeneous Island Models for the Set Cover Problem,''*Proc. of the 12th International Conference on Parallel Problem Solving from Nature (PPSN XII)*, C. A.Coello Coello, V. Cutello, K. Deb, S. Forrest, G. Nicosia and M. Pavone (eds.), Lecture Notes in Computer Science, Volume 7492/2012, pp.11-20, Taormina, Italy, 1-5 September 2012. - X Yang, K Tang,
**X Yao**, ``A learning-to-rank algorithm for constructing defect prediction models,''*Proc. of the 13th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'12)*, H. Yin, J. A.F. Costa and G. Barreto (eds.), Lecture Notes in Computer Science, Volume 7435/2012, pp.167-175, Natal, Brazil, 29-31 August 2012. -
**X. Yao**, ``Unpacking and Understanding Evolutionary Algorithms,'' In*Advances in Computational Intelligence*, Lecture Notes in Computer Science, Volume 7311/2012, pp.60-76, 2012. (Based on the WCCI'12 Plenary Talk) - L.L. Minku, D. Sudholt and
**X. Yao**, ``Evolutionary algorithms for the project scheduling problem: runtime analysis and improved design,''*Proc. of the 14th International Conference on Genetic and Evolutionary Computation Conference (GECCO'12)*, pp.1221-1228, ACM Press, Philadelphia, USA, 7-11 July 2012. - B. Rinner, B. Dieber, L. Esterle, P.R. Lewis and
**X. Yao**, ``Resource-aware configuration in smart camera networks,''*Proc. of the 2012 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)*, pp.58-65, IEEE Press, Providence, RI, USA, 16-21 June 2012. - H. Fu, B. Sendhoff, K. Tang and
**X. Yao**, ``Characterizing environmental changes in robust optimization over time,''*Proc. of the 2012 IEEE Congress on Evolutionary Computation (CEC'12)*, pp.551-558, IEEE Press, Brisbane, Australia, 10-15 June 2012. - L. L. Minku and
**X. Yao**, ``Using unreliable data for creating more reliable online learners,''*Proc. of the 2012 International Joint Conference on Neural Networks (IJCNN'12)*, pp.2492-2499, IEEE Press, Brisbane, Australia, 10-15 June 2012. - F. Fern\'andez-Navarro, H. Chen, P. Guti\'errez, C. Herv\'as-Mart\'inez and
**X. Yao**, ``Neural network ensembles to determine growth multi-classes in predictive microbiology,''*Proc. of the 7th International Conference on Hybrid Artificial Intelligent Systems (HAIS 2012)*, E. Corchado, V. Sn\'a\v{s}el, A. Abraham, M. Wozniak, M. Gra\~na and S.-B. Cho (eds.), Lecture Notes in Computer Science, Volume 7209/2012, pp.308-318, Salamanca, Spain, 28-30 March 2012. - E. Robinson, P. McBurney and
**X. Yao**, ``Co-learning Segmentation in Marketplaces,''*Proc. of the 2011 International Workshop on Adaptive and Learning Agents (ALA'2011), Revised Selected Papers*, P. Vrancx, M. Knudson and M. Grzes (eds.), Lecture Notes in Computer Science, Volume 7113/2012, pp.1-20, 2012. - J. Li, G. Lu and
**X. Yao**, ``Fitness Landscape-Based Parameter Tuning Method for Evolutionary Algorithms for Computing Unique Input Output Sequences,''*Proc. of the 18th International Conference on Neural Information Processing (ICONIP'11)*, 14-17 November 2011, Shanghai, China, Lecture Notes in Computer Science, Volume 7063/2011, pp.453-460. - P. R. Lewis, A. Chandra, S. Parsons, E. Robinson, K. Glette, R. Bahsoon,
J. Torresen and
**X. Yao**, ``A Survey of Self-Awareness and Its Application in Computing Systems.''*Proceedings of the 1st AWARE Workshop: Challenges in Achieving Self-Awareness in Autonomous Systems at SASO 2011: Fifth IEEE International Conference on Self-Adaptive and Self-Organizing Systems*. 7 October 2011, Ann Arbor, Michigan, USA. - L. L. Minku and
**X. Yao**, ``A principled evaluation of ensembles of learning machines for software effort estimation,''*Proc. of the 7th International Conference on Predictive Models in Software Engineering (PROMISE'11)*, Banff, Canada, 20-21 September 2011.

Also available here. - L. Esterle, P. R. Lewis, M. Bogdanski, B. Rinner and
**X. Yao**, ``A socio-economic approach to online vision graph generation and handover in distributed smart camera networks.''*Proceedings of the Fifth ACM/IEEE International Conference on Distributed Smart Cameras (ICDSC-11)*, pp.1-6, Ghent, Belgium, 22-25 August 2011. IEEE Press.

Also available here. - E. Robinson, P. McBurney and
**X. Yao**, ``Market Niching in Multi-attribute Computational Resource Allocation Systems,''*Proceedings of the 13th International Conference on Electronic Commerce (ICEC 11)*, 3-5 August 2011, Liverpool, UK. - P. R. Lewis, P. Marrow and
**X. Yao**, ``A Diversity Dilemma in Evolutionary Markets,''*Proceedings of the 13th International Conference on Electronic Commerce (ICEC 11)*, 3-5 August 2011, Liverpool, UK. - B. Jones, A. Soltoggio, B. Sendhoff and
**X. Yao**, ``Evolution of neural symmetry and its coupled alignment to body plan morphology.''*Proc. of the 13th Annual Conference on Genetic and Evolutionary Computation (GECCO 2011)*, pp.235-242, 12-16 July 2011, Dublin, Ireland, ACM Press, New York, NY, USA.

Also available here - M. N. Omidvar, X. Li and
**X. Yao**, ``Smart use of computational resources based on contribution for cooperative co-evolutionary algorithms.''*Proc. of the 13th Annual Conference on Genetic and Evolutionary Computation (GECCO 2011)*, pp.1115-1122, 12-16 July 2011, Dublin, Ireland, ACM Press, New York, NY, USA.

Also available here. - M. Bogdanski, P. R. Lewis, T. Becker and
**X. Yao**, ``Improving Scheduling Techniques in Heterogeneous Systems with Dynamic, On-Line Optimisations.''*Proc. of the Fifth International Conference on Complex, Intelligent and Software Intensive Systems (CISIS 2011)*, Seoul, South Korea, 29 June -- 2 July 2011, IEEE Computer Society Press, Washington, DC, USA, pp.496-501.

Also available here. - P. Wang, K. Tang, E. P. K. Tsang and
**X. Yao**, ``A Memetic Genetic Programming with decision tree-based local search for classification problems.''*Proc. of 2011 IEEE Congress on Evolutionary Computation*, IEEE Press, pp.917-924. 5-8 June 2011, New Orleans, USA.

Also available here. - X. Lu, K. Tang and
**X. Yao**, ``Classification-assisted Differential Evolution for computationally expensive problems.''*Proc. of 2011 IEEE Congress on Evolutionary Computation*, IEEE Press, pp.1986-1993. 5-8 June 2011, New Orleans, USA.

Also available here. - G. Lu, J. Li and
**X. Yao**, ``Fitness-Probability Cloud and a Measure of Problem Hardness for Evolutionary Algorithms.''*Proc. the 11th European Conference on Evolutionary Computation in Combinatorial Optimization (EvoCOP 2011)*, P. Merz and J.-K. Hao (eds.), Lecture Notes in Computer Science, Volume 6622, pp.108-117, Torino, Italy, 27-29 April 2011. - S. Cathabard, P. K. Lehre and
**X. Yao**, ``Non-uniform mutation rates for problems with unknown solution lengths.''*Proc. of the 11th Workshop on Foundations of Genetic Algorithms (FOGA 2011)*, pp.173-180, 5-9 January 2011, Schwarzenberg, Austria. ACM Press, New York, NY, USA.

Also available here. - A. Rahman, B. Verma and
**X. Yao**, "Non-uniform Layered Clustering for Ensemble Classifier Generation and Optimality,"*Proc. of the 17th International Conference on Neural Information Processing --- Theory and Algorithms (ICONIP'10)*, K. W. Wong, B. Sumudu U. Mendis and A. Bouzerdoum (editors), 22-25 November 2010, Sydney, Australia, Lecture Notes in Computer Science, Volume 6443, pp.551-558. - J. M. Whitacre, P. Rohlfshagen, A. Bender and
**X. Yao**, "The role of degenerate robustness in the evolvability of multi-agent systems in dynamic environments,"*Proc. of the 11th International Conference on Parallel Problem Solving from Nature*, R. Schaefer, C. Cotta, J. Kolodziej and G. Rudolph (editors), Krakow, Poland, Lecture Notes in Computer Science, Volume 6238, pp.284-293, 11-15 September 2010. - B. Jones, Y. Jin, B. Sendhoff and
**X. Yao**, "Emergent Distribution of Computational Workload in the Evolution of an Undulatory Animat,"*Proc. of the 11th International Conference on Simulation of Adaptive Behavior*, Paris, France, 24-28 August 2010. Lecture Notes in Computer Science, Volume 6226, pp.587-596. - S. Wang, H. Chen and
**X. Yao**, ``Negative Correlation Learning for Classification Ensembles,''*Proc. of the 2010 International Joint Conference on Neural Networks (IJCNN'10)*, Barcelona, Spain, 18-23 July 2010. pp.2893-2900.

Also available here. - M. N. Omidvar, X. Li,
**X. Yao**and Z. Yang, ``Cooperative Co-evolution for Large Scale Optimization Through More Frequent Random Grouping,''*Proc. of the 2010 IEEE Congress on Evolutionary Computation (CEC2010)*, Barcelona, Spain, 18-23 July 2010. pp.1754-1761.

Also available here. - Y. Mei, K. Tang and
**X. Yao**, ``Capacitated Arc Routing Problem in Uncertain Environments,''*Proc. of the 2010 IEEE Congress on Evolutionary Computation (CEC2010)*, Barcelona, Spain, 18-23 July 2010. pp.1400-1407.

Also available here. - X. Yu, Y. Jin, K. Tang and
**X. Yao**, ``Robust Optimization over Time --- A New Perspective on Dynamic Optimization Problems,''*Proc. of the 2010 IEEE Congress on Evolutionary Computation (CEC2010)*, Barcelona, Spain, 18-23 July 2010, pp.3998-4003.

Also available here. - M. N. Omidvar, X. Li and
**X. Yao**, ``Cooperative Co-evolution with Delta Grouping for Large Scale Non-separable Function Optimization,''*Proc. of the 2010 IEEE Congress on Evolutionary Computation (CEC2010)*, Barcelona, Spain, 18-23 July 2010. pp.1762-1769.

Also available here. - P. Rohlfshagen and
**X. Yao**, ``On the Role of Modularity in Evolutionary Dynamic Optimisation,''*Proc. of the 2010 IEEE Congress on Evolutionary Computation (CEC2010)*, Barcelona, Spain, 18-23 July 2010, pp.3539-3546.

Also available here. - X. Lu, K. Tang and
**X. Yao**, ``Evolving Neural Networks with Maximum AUC for Imbalanced Data Classification,''*Proc. of the 5th International Conference on Hybrid Artificial Intelligence Systems (HAIS'2010)*, M. G. Romay, E. Corchado and M. T. G. Sebastian (ediors), San Sebasti\'an, Spain, 23-25 June 2010, Lecture Notes in Computer Science, Volume 6076, pp.335-342. - P. Tino, S. Y. Chong and
**X. Yao**, ``On Reliability of Simulations of Complex Co-evolutionary Process,''*Proc. of the 24th European Conference on Modelling and Simulation (ECMS 2010)*, pp.258-264, 1-4 June 2010, Kuala Lumpur, Malaysia. - A. Chandra, P. S. Oliveto and
**X. Yao**, ``Co-evolution of Optimal Agents for the Alternating Offers Bargaining Game,''*Proc. of EvoApplicatons 2010: EvoCOMPLEX, EvoGAMES, EvoIASP, EvoINTELLIGENCE, EvoNUM, and EvoSTOC*, C. D. Chio, S. Cagnoni, C. Cotta, M. Ebner, A. Ek\'art, A. I. Esparcia-Alcazar, C.-K. Goh, J. J. Merelo, F. Neri and M. Preuss, et al. (editors), Lecture Notes in Computer Science, Volume 6024, pp.61-70, Istanbul, Turkey, 7-9 April 2010. - S. Wang and X. Yao, ``Theoretical Study of the Relationship between
Diversity and Single-Class Measures for Class Imbalance Learning,''
*Proc. of 2009 IEEE International Conference on Data Mining Workshops*, IEEE Computer Society Press, Miami, Florida, USA, 6 December 2009, pp.76-81. - V. Nallur, R. Bahsoon and
**X. Yao**, "Self-optimizing architecture for ensuring quality attributes in the cloud," In*Joint Proc. of the 8th Working IEEE/IFIP Conference on Software Architecture and 3rd European Conference on Software Architecture (WICSA/ECSA 2009)*, Cambridge, UK, 14-17 September 2009, pp.281-284.

Also available here. - B. Jones, Y. Jin, B. Sendhoff and
**X. Yao**, ``The evolutionary emergence of neural organization in a hydra-like animat,''*Frontiers in Computational Neuroscience, Conference Abstract:Bernstein Conference on Computational Neuroscience*, Frankfurt am Main, Germany, 30/9-2/10/2009. - P. Rohlfshagen, P. K. Lehre and
**X. Yao**, ``Dynamic evolutionary optimisation: An analysis of frequency and magnitude of change,'' In*Proceedings of the 2009 Genetic and Evolutionary Computation Conference*, pp.1713-1720, 2009. (**Won the Best Paper Prize in the Theory Track.**)

Also available here. - S. Wang and
**X. Yao**``Diversity exploration and negative correlation learning on imbalanced data sets,''*Proc. of the 2009 International Joint Conference on Neural Networks (IJCNN'09)*, Atlanta, GA, USA, 14-19 June 2009, pp.3259-3266.

Also available here. - R. Landa Becerra, R. Sagarna and
**X. Yao**, ``An Evaluation of Differential Evolution in Software Test Data Generation,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.2850-2857.

Also available here. - P. R. Lewis, P. Marrow and
**X. Yao**, ``Evolutionary Market Agents and Heterogeneous Service Providers: Achieving Desired Resource Allocations,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.907-910.

Also available here. - F. Peng, K. Tang, G. Chen and
**X. Yao**, ``Multi-start JADE with knowledge transfer for numerical optimization,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.1889-1895.

Also available here. - T. T. Nguyen and
**X. Yao**, ``Benchmarking and Solving Dynamic Constrained Problems,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.690-697.

Also available here. - T. Ray and
**X. Yao**, ``A Cooperative Coevolutionary Algorithm with Correlation Based Adaptive Variable Partitioning,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.983-989.

Also available here. - Y. Mei, K. Tang and
**X. Yao**, ``Improved Memetic Algorithm for Capacitated Arc Routing Problem,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.1699-1706.

Also available here. - Z. Yang, J. Zhang, K. Tang,
**X. Yao**and A. C. Sanderson, ``An Adaptive Coevolutionary Differential Evolution Algorithm for Large-Scale Optimization,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.102-109.

Also available here. - X. Li and
**X. Yao**, ``Tackling High Dimensional Nonseparable Optimization Problems by Cooperatively Coevolving Particle Swarms,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.1546-1553.

Also available here. - T. Chen, P. K. Lehre, K. Tang and
**X. Yao**, ``When Is an Estimation of Distribution Algorithm Better than an Evolutionary Algorithm?''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.1470-1477.

Also available here. - H. K. Singh, A. Isaacs, T. T. Nguyen, T. Ray and
**X. Yao**, ``Performance of Infeasibility Driven Evolutionary Algorithm (IDEA) on Constrained Dynamic Single Objective Optimization Problems,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.3127-3134.

Also available here. - T. Chen, K. Tang, G. Chen and
**X. Yao**, ``Rigorous Time Complexity Analysis of Univariate Marginal Distribution Algorithm with Margins,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.2157-2164.

Also available here. - Z. Wang, T. Chen, K. Tang and
**X. Yao**, ``A Multi-Objective Approach to Redundancy Allocation Problem in Parallel-Series Systems,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.582-589.

Also available here. - J. Tate, B. Woolford-Lim, I. Bate and
**X. Yao**, ``Comparing Design of Experiments and Evolutionary Approaches to Multi-Objective Optimisation of Sensornet Protocols,''*Proceedings of the 2009 IEEE Congress on Evolutionary Computation (CEC2009)*, Trondheim, Norway, 18-21 May 2009, IEEE Press, pp.1137-1144.

Also available here. - P. Rohlfshagen and
**X. Yao**, ``The dynamic knapsack problem revisited: A new benchmark problem for dynamic combinatorial optimisation,'' In M. Giacobini et al (Eds.),*Proceedings of the 2009 European Workshops on Applications of Evolutionary Computation, EvoWorkshops 2009*, Lecture Notes in Computer Science, Vol. 5484, Springer, pp.745-754, 2009. - T. T. Nguyen and
**X. Yao**, ``Dynamic Time-linkage Problems Revisited,'' In M. Giacobini et al (Eds.),*Proceedings of the 2009 European Workshops on Applications of Evolutionary Computation, EvoWorkshops 2009*, Lecture Notes in Computer Science, Vol. 5484, Springer, pp.735-744, April 2009.

Also available here. - S. Wang and
**X. Yao**``Diversity analysis on imbalanced data sets by using ensemble models,''*Proc. of 2009 IEEE Symposium on Computational Intelligence and Data Mining (CIDM'09)*, Nashville, TN, USA, 30 March -- 2 April 2009, pp.324-331.

Also available here. - P. K. Lehre and
**X. Yao**, ``Crossover can be constructive when computing unique input output sequences,''*Proceedings of the Seventh International Conference on Simulated Evolution And Learning (SEAL'2008)*, Lecture Notes in Computer Science, Volume 5361, Springer-Verlag, Berlin, December 2008, pp.595-604. - A. Arcuri, D. R. White, J. Clark and
**X. Yao**, ``Multi-Objective Improvement of Software using Co-evolution and Smart Seeding,''*Proceedings of the Seventh International Conference on Simulated Evolution And Learning (SEAL'2008)*, Lecture Notes in Computer Science, Volume 5361, Springer-Verlag, Berlin, December 2008, pp.61-70. - P. Rohlfshagen and
**X. Yao**, ``Attributes of Dynamic Combinatorial Optimisation,''*Proceedings of the Seventh International Conference on Simulated Evolution And Learning (SEAL'2008)*, Lecture Notes in Computer Science, Volume~5361, Springer-Verlag, Berlin, December 2008, pp.442-451. - E. G. Ortiz-Garc\'ia, S. Salcedo-Sanz, \'A. M. P\'erez-Bellido,
A. Portilla-Figueras and
**X. Yao**, ``Solving Very Difficult Japanese Puzzles with a Hybrid Evolutionary-Logic Algorithm,''*Proceedings of the Seventh International Conference on Simulated Evolution And Learning (SEAL'2008)*, Lecture Notes in Computer Science, Volume 5361, Springer-Verlag, Berlin, December 2008, pp.360-369. - B. Jones, Y. Jin, B. Sendhoff and
**X. Yao**, ``Evolving functional symmetry in a three dimensional model of an elongated organism,'' in*Artificial Life XI: Proceedings of the Eleventh International Conference on the Simulation and Synthesis of Living Systems*, S. Bullock, J. Noble, R. Watson and M. A. Bedau (Eds.), MIT Press, Cambridge, MA, 2008, pp.305-312.

Also available here. - B. Jones, Y. Jin,
**X. Yao**and B. Sendhoff, ``Evolution of Neural Organization in A Hydra-Like Animat,''*Proceedings of the 15th International Conference on Neural Information Processing (ICONIP'08)*, November 25-28, 2008, Auckland, NZ. Lecture Notes in Computer Science, Vol. 5506, pp.216-223. - P. R. Lewis, P. Marrow and
**X. Yao**, ``Evolutionary Market Agents for Resource Allocation in Decentralised Systems,''*Proc. of the 10th International Conference on Parallel Problem Solving from Nature (PPSN X)*, G. Rudolph, T. Jansen, S. Lucas, C. Poloni and N. Beume (eds.), Lecture Notes in Computer Science, Vol. 5199, Springer, pp.1071-1080, September 2008. - F. L. Minku and
**X. Yao**, ``On-line Bagging Negative Correlation Learning,''*Proceedings of the 2008 International Joint Conference on Neural Networks (IJCNN2008)*, Hongkong, China, June 2008, IEEE Press, pp.1374-1381. - C. MacNish and
**X. Yao**, ``Direction Matters in High-Dimensional Optimisation,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, pp.2372-2379. - P. C. H. Ma, K. C. C. Chan and
**X. Yao**, ``An Effective Evolutionary Algorithm for Discrete-valued Data Clustering,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, pp.210-216. - A. Arcuri and
**X. Yao**, ``A Novel Co-Evolutionary Approach to Automatic Software Bug Fixing,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, pp.162-168. - P. S. Oliveto, J. He and
**X. Yao**, ``Analysis of Population-Based Evolutionary Algorithms for the Vertex Cover Problem,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, pp.1563-1570. - N. Samways, Y. Jin,
**X. Yao**and B. Sendhoff, ``Toward a Gene Regulatory Network Model for Evolving Chemotaxis Behavior,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, 2569-2576. - W. Dong and
**X. Yao**, ``NichingEDA: Utilizing the Diversity Inside a Population of EDAs for Continuous Optimization,''*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, IEEE Press, pp.1260-1267. - M. Lin, K. Tang and
**X. Yao**, "Selective Negative Correlation Learning Algorithm for Incremental Learning",*Proceedings of the 2008 International Joint Conference on Neural Networks (IJCNN2008)*, Hongkong, China, June 2008, pp.2525-2530. IEEE Press. - Z. Wang, K. Tang and
**X. Yao**, "A Multi-objective Approach to Testing Resource Allocation in Modular Software Systems",*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, pp. 1148-1153. IEEE Press. - X. Yu, K. Tang and
**X. Yao**, "An Immigrants Scheme Based on Environmental Information for Genetic Algorithms in Changing Environments",*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, pp. 1141-1147. IEEE Press. - Z. Yang, K. Tang and
**X. Yao**, "Self-adaptive Differential Evolution with Neighborhood Search",*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, 1110-1116. IEEE Press. - Z. Yang, K. Tang and
**X. Yao**, "Multilevel Cooperative Coevolution for Large Scale Optimization",*Proceedings of the 2008 IEEE Congress on Evolutionary Computation (CEC2008)*, Hongkong, China, June 2008, pp. 1663-1670. IEEE Press. - A. Arcuri, P. K. Lehre and
**X. Yao**, ``Theoretical Runtime Analyses of Search Algorithms on the Test Data Generation for the Triangle Classification Problem,''*Proceedings of the 2008 IEEE International Conference on Software Testing Verification and Validation Workshop (ICSTW'08)*, 9-11 April 2008. Lillehammer, Norway. pp.161-169. IEEE Computer Society Press. (Won the Best PhD Student Paper Prize)

Also available here. - R. Sagarna and
**X. Yao**, ``Handling Constraints for Search Based Software Test Data Generation,''*Proceedings of the 2008 IEEE International Conference onSoftware Testing Verification and Validation Workshop (ICSTW'08)*, 9-11 April 2008. Lillehammer, Norway. pp.232-240. IEEE Computer Society Press.

Also available here. - Y. Matsumura, M. Oiso, K. Ohkura, N. Fujimoto, K. Hagihara, J. L. Wyatt,
**X. Yao**, ``Grid Task Scheduling Algorithm R3Q for Evolving Artificial Neural Networks,'' In*Advances in Cognitive Neurodynamics: Proceedings of 1st International Conference on Cognitive Neurodynamics (ICCN 2007)*, R. Wang, F. Gu, E. Shen Editors), 17-21 November 2007, Shanghai, China, 717-722, ISBN: 9781402083860). - R. Gil-Pita and
**X. Yao**, ``Using a Genetic Algorithm for Editing k-Nearest Neighbor Classifiers,''*Proc. of the 8th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'07)*, Lecture Notes in Computer Science, Vol.~4881, Springer, Berlin, pp.1141-1150, December 2007. - A. Arcuri and
**X. Yao**, ``Coevolving programs and unit tests from their specification,''*Proc. of the 22nd IEEE/ACM International Conference on Automated Software Engineering (ASE'2007)*, Atlanta, Georgia, USA, pp.397-400, ACM Press, New York, NY, USA, November 2007.

Also available here. - A. Arcuri and
**X. Yao**, ``On test data generation of object-oriented software,''*Proc. of Testing: Academic and Industrial Conference Practice and Research Techniques --- MUTATION (TAICPART-MUTATION'2007)*, Windsor, UK, September 2007, pp.72-76, IEEE Computer Society Press, CA, USA.

Also available here. - H. Chen and
**X. Yao**, ``Evolutionary ensemble for In Silico prediction of Ames test mutagenicity,''*Proc. of the 3rd Intenational Conference on Intelligent Computing (ICIC'07), Lecture Notes in Artificial Intelligence*, Vol. 4682, pp.1162-1171, August 2007.

Available here. - W. Dong and
**X. Yao**, ``Covariance Matrix Repairing in Gaussian Based EDAs,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.415-422. - T. Chen, K. Tang, G. L. Chen and
**X. Yao**, ``On the Analysis of Average Time Complexity of Estimation of Distribution Algorithms,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.453-460. - J. He, Z. Yang and
**X. Yao**, ``Hybridisation of Evolutionary Programming and Machine Learning with k-Nearest Neighbor Estimation,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.1693-1700. - K. Praditwong and
**X. Yao**, ``How Well Do Multi-objective Evolutionary Algorithms Scale to Large Problems,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007, pp.3959-3966. - Z. Yang, K. Tang and
**X. Yao**, ``Differential Evolution for High-Dimensional Function Optimization,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007, pp.3523-3530. - T. Ellis and
**X. Yao**, ``Evolving Cooperation in the Non-Iterated Prisoner's Dilemma: A Social Network Inspired Approach,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.736-743. - R. Sagarna, A. Arcuri and
**X. Yao**, ``Estimation of Distribution Algorithms for Testing Object Oriented Software,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.438-444. - P. S. Oliveto, J. He and
**X. Yao**, ``Evolutionary Algorithms and the Vertex Cover Problem,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.1870-1877. - A. Arcuri and
**X. Yao**, ``A Memetic Algorithm for Test Data Generation in Software Engineering,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.2048-2055. - H. Chen and
**X. Yao**, ``Evolutionary Random Neural Ensemble Based on Negative Correlation Learning,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.1468-1474. - P. Zhang,
**X. Yao**, L. Jia, B. Sendhoff and T. Schnier, ``Target Shape Design Optimization by Evolving Splines,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.2009-2016. - P. K. Lehre and
**X. Yao**, ``Runtime Analysis of (1+1) EA on Computing Unique Input Output Sequences,''*Proc. of the 2007 IEEE Congress on Evolutionary Computation (CEC'07)*, Singapore, 25-28 September 2007. pp.1882-1889. - P. Sun and
**X. Yao**, ``Boosting kernel models for regression,''*Proc. of the 6th IEEE International Conference on Data Mining (ICDM06)*, pp.583-591, Hong Kong, 18-22 December 2006. - H. Chen, P. Tino and
**X. Yao**, ``A Probabilistic Ensemble Pruning Algorithm,'' Accepted by*Workshops of the 6th IEEE International Conference on Data Mining (ICDM06)*, Hong Kong, 18-22 December 2006. - K. Praditwong and
**X. Yao**, ``A new multi-objective evolutionary optimisation algorithm: the two-archive algorithm,''*Proc. of the 2006 International Conference on Computational Intelligence and Security (CIS'2006)*, November 3-6, 2006, Ramada Pearl Hotel, Guangzhou, China. IEEE Press, Volume 1, pp.286-291.

Available as a PDF file here. - J. He, Z. Yang and
**X. Yao**, ``Hybridisation of Particle Swarm Optimization and Fast Evolutionary Programming,''*Proc. of the 6th International Conference on Simulated Evolution and Learning (SEAL'06)*, Hefei, China, Lecture Notes in Computer Science, Vol. 4247, pp.392-399, Springer, October 2006. - J. He,
**X. Yao**and J. Tang, ``Towards Intrinsic Evolvable Hardware for Predictive Lossless Image Compression,''*Proc. of the 6th International Conference on Simulated Evolution and Learning (SEAL'06)*, Hefei, China, Lecture Notes in Computer Science, Vol. 4247, pp.632-639, Springer, October 2006. - J. Sun, Q. Zhang, J. Li and
**X. Yao**, ``A Hybrid Estimation of Distribution Algorithm for CDMA Cellular System Design,''*Proc. of the 6th International Conference on Simulated Evolution and Learning (SEAL'06)*, Hefei, China, Lecture Notes in Computer Science, Vol. 4247, pp.905-912, Springer, October 2006. - T. T. Nguyen and
**X. Yao**, ``Hybridizing Cultural Algorithms and Local Search,''*Proc. of the 7th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2006)*, E. Corchado, H. Yin, V. Botti and C. Fyfe (eds.), Lecture Notes in Computer Science, Vol. 4224, Springer, pp.586-594, September 2006, Burgos, Spain. - V. R. Khare, B. Sendhoff and
**X. Yao**, ``Environments Conducive to Evolution of Modularity,''*Proc. of the 9th International Conference on Parallel Problem Solving from Nature (PPSN IX)*, T. P. Runarsson, H.-G. Beyer, E. Burke, J. J. Merelo-Guerv\'os, L. D. Whitley and X. Yao (eds.), Lecture Notes in Computer Science, Vol. 4193, Springer, pp.603-612, September 2006. - S. Y. Chong and
**X. Yao**, ``Self-Adaptive Payoff Matrices in Repeated Interactions,''*Proc. of the 2006 IEEE Symposium on Computational Intelligence and Games (CIG'06)*, pp. 103-110, IEEE Press, Piscataway, NJ, USA, 22-24 May 2006, Reno/Lake Tahoe, Nevada, USA.

Also available here. - P. Sun and
**X. Yao**, ``Greedy forward selection algorithms to Sparse Gaussian Process Regression,''*Proc. of the 2006 International Joint Conference on Neural Networks (IJCNN'06)*, Vancouver, Canada, 16-21 July 2006. pp.159-165, IEEE Press, USA. - A. Nazemi,
**X. Yao**and A. H. Chan, ``Extracting a set of robust pareto-optimal parameters for hydrologic models using NSGA-II and SCEM,''*Proc. of the 2006 IEEE Congress on Evolutionary Computation (CEC'06)*, Vancouver, Canada, 16-21 July 2006. pp.6792-6799, IEEE Press, USA. - H. Handa, D. Lin, L. Chapman and
**X. Yao**, ``Robust Solution of Salting Route Optimisation Using Evolutionary Algorithms,''*Proc. of the 2006 IEEE Congress on Evolutionary Computation (CEC'06)*, Vancouver, Canada, 16-21 July 2006. pp.10455-10462, IEEE Press, USA. - J. He and
**X. Yao**, ``Analysis of Scalable Parallel Evolutionary Algorithms,''*Proc. of the 2006 IEEE Congress on Evolutionary Computation (CEC'06)*, Vancouver, Canada, 16-21 July 2006. pp.427-434, IEEE Press, USA. - H. Chen and
**X. Yao**, ``Evolutionary Multiobjective Ensemble Learning Based on Bayesian Feature Selection,''*Proc. of the 2006 IEEE Congress on Evolutionary Computation (CEC'06)*, Vancouver, Canada, 16-21 July 2006. pp.971-978, IEEE Press, USA. - P. Duell, I. Fermin and
**X. Yao**, ``Speciation Techniques in Evolved Ensembles with Negative Correlation Learning,''*Proc. of the 2006 IEEE Congress on Evolutionary Computation (CEC'06)*, Vancouver, Canada, 16-21 July 2006. pp.11086-11090, IEEE Press, USA. - P. Duell, I. Fermin and
**X. Yao**, ``Diversity creation in local search for the evolution of neural network ensembles,''*Proc. of the 14th European Symposium on Artificial Neural Networks (ESANN'2006)*, Bruges, Belgium, 26-28 April 2006.

Also available here. - P. Sun and
**X. Yao**, ``Efficient forward kernel regression with marginal likelihood,''*Proc. of the 14th European Symposium on Artificial Neural Networks (ESANN'2006)*, Bruges, Belgium, 26-28 April 2006, pp.485-490.

Also available here. - T. Schnier,
**X. Yao**, R. Beale, R. Hendley, W. Byrne, ``Nature inspired creative design --- bringing together ideas from nature, computer science, engineering, art, design,''*Proceedings of the Seventh International Conference on Adaptive Computing in Design and Manufacture (ACDM 2006)*, I.C.Parmee (ed), The Institute for People Centred Computation, Bristol, UK, pp.237-240, April 2006. - K. Tang, P. N. Suganthan and
**X. Yao**, ``Feature selection for microarray data using least squares {SVM} and particle swarm optimization,''*Proc. of the 2005 IEEE Symposium on Computational Intelligence in Bioinformatics and Computational Biology*, San Diego, California, USA, 14-15/11/2005. (Mr. Ke Tang won the Best Student Paper Award.)

Also available here. - H. Handa, L. Chapman and
**X. Yao**, ``Dynamic Salting Route Optimisation using Evolutionary Computation,''*Proc. of the 2005 Congress on Evolutionary Computation (CEC'05)*, Vol.~1, 2-5 September 2005, IEEE Press, Piscataway, NJ, USA, pp.158-165. - J. Li, X. Li and
**X. Yao**, ``Cost-Sensitive Classification with Genetic Programming,''*Proc. of the 2005 Congress on Evolutionary Computation (CEC'05)*, Vol.~3, 2-5 September 2005, IEEE Press, Piscataway, NJ, USA, pp.2114-2121. - V. R. Khare,
**X. Yao**, B. Sendhoff, Y. Jin and H. Wersing, ``Co-evolutionary modular neural networks for automatic problem decomposition,''*Proc. of the 2005 Congress on Evolutionary Computation (CEC'05)*, Vol.~3, 2-5 September 2005, IEEE Press, Piscataway, NJ, USA, pp.2691-2698. - X. Li and
**X. Yao**, ``Application of Fuzzy Similarity to Prediction of Epileptic Seizures using EEG signals,''*Proc. of the 2005 International Conference on Fuzzy Systems and Knowledge Discovery (FSKD'05)*, Changsha, Hunan, China, 27-29 August 2005.*Lecture Notes in Artificial Intelligence, Vol.~3613*, pp.645-652. - J. He and
**X. Yao**, ``A Game-Theoretic Approach for Designing Mixed Mutation Strategies,''*Proc. of the 2005 International Conference on Natural Computation (ICNC'05)*, Changsha, Hunan, China, 27-29 August 2005,*Lecture Notes in Computer Science, Vol.~3612*, pp.279-288. - P. Tino, N. Nikolaev and
**X. Yao**, ``Volatility Forecasting with Sparse Bayesian Kernel Models,'' In*Proc. of the 4th International Conference on Computational Intelligence in Economics and Finance (CIEF'05)*, pp.1150-1153, July 21-26, 2005, Salt Lake City, Utah, USA.

Also available here. - A. Chandra and
**X. Yao**, ``Evolutionary Framework for the Construction of Diverse Hybrid Ensembles,''*Proc. of the 13th European Symposium on Artificial Neural Networks (ESANN'2005)*, Bruges, Belgium, 27-29 April 2005, pp.253-258.

Also available here. - E. K. Tang, P. N. Suganthan, and
**X. Yao**, ``Nonlinear Feature Extraction Using Evolutionary Algorithm", N. R. Pal*et al.*(Eds.),*Proc. of ICONIP 2004, LNCS 3316*, pp. 1014-1019, 2004. - Y. Matsumura, N. Fujimoto,
**X. Yao**, J. Wyatt and K. Hagihara, ``Near-Optimal Dynamic Grid Task Scheduling of Evolution Strategies,''*Proc. of The 4th International Conference on Advanced Mechatronics*, pp.175-180, 2004. - Y. Matsumura, N. Fujimoto,
**X. Yao**, J. Wyatt and K. Hagihara, ``Evolution Strategies on Grid Computing,''*Proc. of the China-Japan Joint Conference on Mechatronics*, CJ-H2, 2004. - J. Li,
**X. Yao**, C. Frayn, H. G. Khosroshahi, S. Raychaudhury, ``An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies,''*Proc. of the 8th International Conference on Parallel Problem Solving from Nature (PPSN VIII)*, Lecture Notes in Computer Science, Vol. 3242, pp.591-601, Springer, September 2004. - V. R. Khare,
**X. Yao**and B. Sendhoff, ``Credit Assignment among Neurons in Co-evolving Populations,''*Proc. of the 8th International Conference on Parallel Problem Solving from Nature (PPSN VIII)*, Lecture Notes in Computer Science, Vol. 3242, pp.882-891, Springer, September 2004. - A. Chandra and
**X. Yao**, ``DIVACE: Diverse and Accurate Ensemble Learning Algorithm,''*Proc. of the Fifth International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'04)*, Lecture Notes in Computer Science, Springer, Vol. 3177, pp.619-625, August 2004.

Available as a PDF file. - Z. Wang,
**X. Yao**, and Y. Xu, ``An Improved Constructive Neural Network Ensemble Approach to Medical Diagnoses,''*Proc. of the Fifth International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'04)*, Lecture Notes in Computer Science, Springer, Vol. 3177, pp.572-577, August 2004. - S. Y. Chong and
**X. Yao**, ``The Impact of Noise on Iterated Prisoner's Dilemma with Multiple Levels of Cooperation,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.348-355, IEEE Press, Piscataway, NJ, USA, 19-23 June 2004, Portland, Oregon, USA. - J. He,
**X. Yao**and Q. Zhang, ``To understand one-dimensional continuous fitness landscapes by drift analysis,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.1248-1253, IEEE Press, Piscataway, NJ, USA, 19-23 June 2004, Portland, Oregon, USA. - S. Tongchim and
**X. Yao**, ``Parallel Evolutionary Programming,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.1362-1367, IEEE Press, Piscataway, NJ, USA, 19-23 June 2004, Portland, Oregon, USA. - E. K. Tang, P. N. Suganthan and
**X. Yao**, ``Generalized {LDA} Using Relevance Weighting and Evolution Strategy,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.2230-2234, IEEE Press, Piscataway, NJ, USA, 19-23 June 2004, Portland, Oregon, USA. - Y. Xu, S. Salcedo-Sanz and
**X. Yao**, ``Non-standard cost terminal assignment problems using tabu search approach,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.2302- 2306, IEEE Press, Piscataway, NJ, USA, June 2004. - P. Zou, Z. Zhou, G.-L. Chen and
**X. Yao**, ``A novel memetic algorithm with random multi-local-search: a case study of TSP,''*Proc. of the 2004 Congress on Evolutionary Computation (CEC'04)*, pp.2335-2340, IEEE Press, Piscataway, NJ, USA, 19-23 June 2004, Portland, Oregon, USA. - S. Yang and
**X. Yao**, ``Dual population-based incremental learning for problem optimization in dynamic environments,'' In*Proceedings of the 7th Asia Pacific Symposium on Intelligent and Evolutionary Systems*, M. Gen et.~al. (editors), pp. 49-56, 2003. - Y. Matsumura,
**X. Yao**, J. L. Wyatt, K. Ohkura and K. Ueda, ``Robust Evolution Strategies Use Adaptive Search Strategies to Design Continuous-Time Recurrent Neural Networks,''*Proc. of the 2nd International Conference on Computational Intelligence, Robotics and Autonomous Systems (CIRAS 2003)*, December 15-18, 2003, Singapore. - T. P. Runarsson and
**X. Yao**, ``Evolutionary Search and Constraint Violations,'' In*Proc. of the 2003 Congress on Evolutionary Computation (CEC'03)*, IEEE Press, Piscataway, NJ, USA, 8-12 December 2003. pp.1414-1419. - J. He and
**X. Yao**, ``An Analysis of Evolutionary Algorithms for Finding Approximation Solutions to Hard Optimisation Problems,'' In*Proc. of the 2003 Congress on Evolutionary Computation (CEC'03)*, IEEE Press, Piscataway, NJ, USA, 8-12 December 2003. pp.2004-2009. - H. Tianfield, J. Tian and
**X. Yao**, "On the Architectures of Complex Multi-Agent Systems,"*Proc. of the Workshop on Knowledge Grid and Grid Intelligence*(ISBN 0-9734039-0-X), held at the 2003 IEEE/WIC International Conference on Web Intelligence / Intelligent Agent Technology, October 13 - 16, 2003, Halifax, Canada, pp. 195-206.

Available as a PDF file. - V. Khare,
**X. Yao**and K. Deb, ``Performance Scaling of Multi-objective Evolutionary Algorithms,'' In*Proc. of the 2nd International Conference on Evolutionary Multi-Criterion Optimization (EMO'03)*, Lecture Notes in Computer Science, Vol. 2632, Carlos M. Fonseca, Peter J. Fleming, Eckart Zitzler, Kalyanmoy Deb and Lothar Thiele (Eds.), Springer-Verlag, April 2003, pp.376-390. - T. Schnier and
**X. Yao**, ``Using negative correlation to evolve fault-tolerant circuits,'' In*Proc. of the 5th International Conference on Evolvable Systems: From Biology to Hardware (ICES'2003)*, Lecture Notes in Computer Science, Vol. 2606, A. M. Tyrrell, P. C. Haddow and J. Torresen (Eds.), Springer-Verlag, March 2003, pp.35-46. - G. Brown,
**X. Yao**, J. Wyatt, H. Wersing and B. Sendhoff, ``Exploiting Ensemble Diversity for Automatic Feature Extraction,''*Proc. of the 9th International Conference on Neural Information Processing (ICONIP'02)*, pp.1786-1790, Singapore, November 2002. - V. Khare and
**X. Yao**, ``Artificial speciation and automatic modularisation,''*Proc. of the 4th Asia-Pacific Conference on Simulated Evolution And Learning (SEAL'02)*, pp.56-60, Singapore, November 2002. - J. He and
**X. Yao**, ``Maximum Cardinality Matching by Evolutionary Algorithms,''*Proc. of the 2002 UK Workshop on Computational Intelligence (UKCI'02)*, J. A. Bullinaria (ed.), Birmingham, UK, September 2002, pp.53-60. - K. Gupta and
**X. Yao**, ``Evolutionary Approach for Vehicle Routing Problem with Time Windows and Facility Location Allocation Problem,''*Proc. of the 2002 UK Workshop on Computational Intelligence (UKCI'02)*, J. A. Bullinaria (ed.), Birmingham, UK, September 2002, pp.45-52. - V. Khare and
**X. Yao**, ``Artificial Speciation of Neural Network Ensembles,''*Proc. of the 2002 UK Workshop on Computational Intelligence (UKCI'02)*, J. A. Bullinaria (ed.), Birmingham, UK, September 2002, pp.96-103. - Y. Liu and
**X. Yao**, ``Learning and Evolution by Minimization of Mutual Information,''*Proc. of the 7th International Conference on Parallel Problem Solving from Nature (PPSN VII), Lecture Notes in Computer Science, Vol. 2439*, Springer, September 2002, pp.495-504. - M. Salim and
**X. Yao**, ``Evolving SQL Queries for Data Mining,''*Proc. of the Third International Conference on Intelligent Data Engineering and Automated Learning (IDEAL'02), Lecture Notes in Computer Science, Vol. 2412*, Springer, August 2002, pp.62-67.

Available from Springer's web site as a PDF file. -
**X. Yao**and Y. Liu, ``Getting Most Out of Evolutionary Approaches,''*Proc. of the 2002 NASA/DoD Conference on Evolvable Hardware (EH'02)*, A. Stoica, J. Lohn, R. Katz, D. Keymeulen and R. Zebulum (eds.), IEEE Computer Society, pp.8-14, July 2002. -
**X. Yao**, ``From Evolutionary Computation to Natural Computation,''*Proceedings of the the 5th International Conference on Adaptive Computing in Design and Manufacture (ACDM'02)*, I. C. Parmee (ed.), invited paper, Springer-Verlag, UK, pp.41--50, April 2002. - Y. Liu,
**X. Yao**, Q. Zhao and T. Higuchi, ``An experimental comparison of neural network ensemble learning methods on decision boundaries,''*Proceedings of the 2002 International Joint Conference on Neural Networks (IJCNN'02)*, pp.221-226, IEEE Press, Piscataway, NJ, USA, 12-17 May 2002.

Also available here. - Y. Liu and
**X. Yao**, ``Maintaining population diversity by minimizing mutual information,''*Proc. of the 2002 Genetic and Evolutionary Computation Conference (GECCO'02)*, Morgan Kaufmann, pp.448-455, July 2002. - T. P. Runarsson and
**X. Yao**, ``Continuous selection and self-adaptive evolution strategies,''*Proceedings of the 2002 Congress on Evolutionary Computation (CEC'02)*, pp.279-284, IEEE Press, Piscataway, NJ, USA, 12-17 May 2002. - Y. Liu and
**X. Yao**, ``How to control search step size in fast evolutionary programming,''*Proceedings of the 2002 Congress on Evolutionary Computation (CEC'02)*, pp.652-656, IEEE Press, Piscataway, NJ, USA, 12-17 May 2002. -
**X. Yao**and Y. Liu, ``Evolving Neural Networks for Chlorophyll-a Prediction,''*Proceedings of the Fourth International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'2001)*, pp.185-189, IEEE Computer Society Press, 30 October-1 November 2001, Yokusika, Japan.

Also available here. - G. Brown and
**X. Yao**, ``On the effectiveness of negative correlation learning,''*Proceedings of the UK Workshop on Computational Intelligence (UKCI'01)*, Q. Shen (ed.), pp. 57-62, Edinburgh, UK, 10-12 September 2001. - Y. Liu and
**X. Yao**, ``Evolving Neural Networks for Hang Seng Stock Index Forecast,''*Proceedings of the 2001 Congress on Evolutionary Computation*, pp.256-260, IEEE Press, Piscataway, NJ, USA, May 2001.

Available as a PDF file. - Y. Liu,
**X. Yao**, Q. Zhao and T. Higuchi, ``Evolving a Cooperative Population of Neural Networks by Minimizing Mutual Information,''*Proceedings of the 2001 Congress on Evolutionary Computation*, pp.384-389, IEEE Press, Piscataway, NJ, USA, May 2001.

Available as a PDF file. - C.-Y. Lee and
**X. Yao**, ``Evolutionary Algorithms with Adaptive L{\'{e}}vy Mutations,''*Proceedings of the 2001 Congress on Evolutionary Computation*, pp.568-575, IEEE Press, Piscataway, NJ, USA, May 2001.

Available as a PDF file. - P. J. Darwen and
**X. Yao**, ``Why More Choices Cause Less Cooperation in Iterated Prisoner's Dilemma,''*Proceedings of the 2001 Congress on Evolutionary Computation*, pp.987-994, IEEE Press, Piscataway, NJ, USA, May 2001.

Available as a PDF file. - Y. Liu,
**X. Yao**, Q. Zhao and T. Higuchi, ``Scaling Up Fast Evolutionary Programming with Cooperative Coevolution,''*Proceedings of the 2001 Congress on Evolutionary Computation*, pp.1101-1108, IEEE Press, Piscataway, NJ, USA, May 2001.

Available as a PDF file. - T. Schnier,
**X. Yao**and P. Liu, ``Digital Filter Design Using Multiple Pareto Fronts,''*Proceedings of the Third NASA/DoD Workshop on Evolvable Hardware*, pp.136-145, IEEE Computer Society Press, July 2001. - T. Schnier and
**X. Yao**, ``Evolutionary Design Calibration,''*Proceedings of the 4th International Conference on Evolvable Systems (ICES-2001)*, LNCS 2210, pp.26-37, Tokyo, Japan, October 3-5, 2001. -
**X. Yao**, M. M. Fischer and G. Brown, ``Neural Network Ensembles and Their Application to Traffic Flow Prediction in Telecommunications Networks,''*Proceedings of the 2001 INNS/IEEE International Joint Conference on Neural Networks (IJCNN'01)*, pp.693-698, IEEE Press, Piscataway, NJ, USA, July 2001.

Also available as a PDF file. - Y. Liu and
**X. Yao**, ``Designing Neural Network Ensembles by Minimizing Mutual Information,''*Proceedings of 2001 International Conference on Computational Intelligence for Modelling, Control and Automation (CIMCA'2001)*, M. Mohammadian (ed.), pp.38-47, 9-11 July 2001, Las Vegas, USA. - K. Liang,
**X. Yao**and C. S. Newton, ``Larmarckian Evolution in Global Optimisation,''*Proc. of the 26th IEEE International Conference on Industrial Electronics, Control and Instrumentation (IECON2000) and the 3rd Asia-Pacific Conference on Simulated Evolution and Learning*, IEEE Press, Piscataway, NJ, USA, October 2000, pp.2975-2980. - T. Schnier and
**X. Yao**, ``Using Multiple Representations in Evolutionary Algorithms,''*Proceedings of the 2000 Congress on Evolutionary Computation*, IEEE Press, Piscataway, NJ, USA, July 2000. pp.479-486.

Available as a PDF file. - Y.-G. Seo, S.-B. Cho and
**X. Yao**, ``Exploiting Coalition in Co-Evolutionary Learning,''*Proceedings of the 2000 Congress on Evolutionary Computation*, IEEE Press, Piscataway, NJ, USA, July 2000. pp.1268-1275.

Available as a PDF file. -
**X. Yao**and P. J. Darwen, ``How Important Is Your Reputation in a Multi-Agent Environment,''*Proc. of the 1999 IEEE Conference on Systems, Man, and Cybernetics*, IEEE Press, Piscataway, NJ, USA, pp.II-575 - II-580, October 1999.

Available as a PDF file. -
**X. Yao**and Y. Liu, ``Neural networks for breast cancer diagnosis,''*Proc. of the 1999 Congress on Evolutionary Computation, Vol. 3*, IEEE Press, Piscataway, NJ, USA, pp.1760-1767, July 1999.

Available as yao_liu_cec99.ps.gz. - C. Zhang,
**X. Yao**and J. Yang, ``Evolving materialized views in data warehousing,''*Proc. of the 1999 Congress on Evolutionary Computation, Vol. 2*, IEEE Press, Piscataway, NJ, USA, pp.823-829, July 1999.

Available as zhang_yao_yang_cec99.ps.gz. - Y.-G. Seo, S.-B. Cho and
**X. Yao**, ``Emergence of Cooperative Coalition in NIPD game with Localization of Interaction and Learning,''*Proc. of the 1999 Congress on Evolutionary Computation, Vol. 2*, IEEE Press, Piscataway, NJ, USA, pp.877-884, July 1999. - K.-H. Liang,
**X. Yao**and C. S. Newton, ``Combining landscape approximation and local search in global optimization,''*Proc. of the 1999 Congress on Evolutionary Computation, Vol. 2*, IEEE Press, Piscataway, NJ, USA, pp.1514-1520, July 1999.

Available as cec99_lals.ps.gz. -
**X. Yao**, ``How does evolutionary computation fit into IT postgraduate teaching,''*Proc. of the 1999 Congress on Evolutionary Computation, Vol. 3*, IEEE Press, Piscataway, NJ, USA, pp.1707-1713, July 1999.

Available as yao_ec_teach.ps.gz. **X. Yao**, ``Recent new development in evolutionary programming,'' In*Advances in Soft Computing - Engineering Design and Manufacturing*, R. Roy, T. Furuhashi and P. K. Chawdhry (editors), Springer, London, 1999.

Available as yao_wsc3.ps.gz.- Y. Liu and
**X. Yao**, ``Towards designing neural network ensembles by evolution,''*Proc. of the Fifth International Conference on Parallel Problem Solving from Nature (PPSN-V), Lecture Notes in Computer Science*, Vol. 1498, A. E. Eiben, T. B{\"{a}}ck, M. Schoenauer and H.-P. Schwefel (ed.), Springer-Verlag, Berlin, pp.623-632, 1998.

Available as liu_yao_ppsn98.ps.gz. - K.-H. Liang,
**X. Yao**, and C. Newton, ``Dynamic Control of Adaptive Parameters in Evolutionary Programming,'' In*Simulated Evolution and Learning: the Second Asia-Pacific Conference on Simulated Evolution and Learning, SEAL'98, Selected Papers*, Lecture Notes in Artificial Intelligence, Volume 1585, pp.42-49, Springer-Verlag, Berlin, 1999.

Available as seal98_dLB.ps.gz. - R. I. McKay and
**X. Yao**, ``Teaching of AI-related subjects at ADFA,''*Proc. of the AI'98 Workshop on AI Teaching*, Brisbane, Australia, 13-17 July 1998. **X. Yao**and Y. Liu, ``Scaling up evolutionary programming algorithms,''*Evolutionary Programming VII: Proc. of the Seventh Annual Conference on Evolutionary Programming (EP98)*, Lecture Notes in Computer Science, Vol. 1447, V. W. Porto, N. Saravanan, D. Waagen and A. E. Eiben (ed.), Springer-Verlag, Berlin, pp.103-112, 1998.

Available as yao_liu_ep98.ps.gz.- K.-H. Liang,
**X. Yao**, C. Newton and D. Hoffman, ``Solving cutting stock problems by evolutionary programming,''*Evolutionary Programming VII: Proc. of the Seventh Annual Conference on Evolutionary Programming (EP98)*, Lecture Notes in Computer Science, Vol. 1447, V. W. Porto, N. Saravanan, D. Waagen and A. E. Eiben (ed.), Springer-Verlag, Berlin, pp.291-300, 1998.

Available as ep98_csp.ps.gz. - K.-H. Liang,
**X. Yao**, Y. Liu, C. Newton and D. Hoffman, ``An experimental investigation of self-adaptation in evolutionary programming,''*Evolutionary Programming VII: Proc. of the Seventh Annual Conference on Evolutionary Programming (EP98)*, Lecture Notes in Computer Science, Vol. 1447, V. W. Porto, N. Saravanan, D. Waagen and A. E. Eiben (ed.), Springer-Verlag, Berlin, pp.755-764, 1998.

Available as ep98_ep.ps.gz. - Y. Liu and
**X. Yao**, ``Simultaneous learning of negatively correlated neural networks,''*Proc. of the Ninth Australian Conf. on Neural Networks (ACNN'98)*, Brisbane, Australia, 11-13 February 1998. ISBN: 1-86499-026-0, pp.183-187.

Available as liu_acnn98.ps.gz. - Y. Liu and
**X. Yao**, ``A Cooperative Ensemble Learning System,''*Proc. of the 1998 IEEE International Joint Conference on Neural Networks (IJCNN'98)*, Anchorage, USA, 4-9 May 1998. pp.2202-2207.

Available as liu_ijcnn_preceed.ps.gz. - Y. Liu and
**X. Yao**, ``Negatively correlated neural networks for classification,''*Proc. of the Third International Symposium on Artificial Life and Robotics (AROBIII'98)*, M. Sugisaka (ed.), Beppu, Japan, 19-21 January 1998, Vol. 2, pp.736-739.

Available as liu_yao_arob98.ps.gz. - X. H. Yu, W. X. Zheng, B. L. Wu and
**X. Yao**, ``Solving constrained optimization problems with new penalty function approach using genetic algorithms, ''*Proc. of the Fourth Int. Conf. on Nueral Information Processing and Intelligent Information Systems (ICONIP'97)*, Dunedin, New Zealand, N. Kasabov, R. Kozma, K. Ko, R. O'Shea, G. Coghill, and T. Gedeon (ed.), Vol. 1, pp. 416-419, Springer Verlag, Nov. 1997. -
**X. Yao**, ``The importance of maintaining behavioural link between parents and offspring,''*Proc. of 1997 IEEE International Conference on Evolutionary Computation (ICEC'97)*, 13-16 April 1997, Indianapolis, USA, pp.629--633.

Available as yao_icec97.ps.gz. - Y. Liu and
**X. Yao**, ``Evolving modular neural networks which generalise well,''*Proc. of 1997 IEEE International Conference on Evolutionary Computation (ICEC'97)*, 13-16 April 1997, Indianapolis, USA, pp.605--610.

Available as liu_yao_icec97.ps.gz. - G. Lin and
**X. Yao**, ``Analysing crossover operators by search step size,''*Proc. of 1997 IEEE International Conference on Evolutionary Computation (ICEC'97)*, 13-16 April 1997, Indianapolis, USA, pp.107--110.

Available as lin_icec97.ps.gz. - J. Bobbin and
**X. Yao**, ``Solving optimal control problems with a cost on changing control by evolutionary algorithms,''*Proc. of 1997 IEEE International Conference on Evolutionary Computation (ICEC'97)*, 13-16 April 1997, Indianapolis, USA, pp.331--336.

Available as bobbin_yao_icec97.ps.gz. -
**X. Yao**and Y. Liu, ``Fast evolution strategies,''*Evolutionary Programming VI: Proc. of the Sixth Annual Conference on Evolutionary Programming (EP97)*, Lecture Notes in Computer Science, Vol. 1213, Springer-Verlag, Berlin, 1997, pp.151--161.

Available as yao_liu_ep97.ps.gz. **X. Yao**, G. Lin and Y. Liu, ``An analysis of evolutionary algorithms based on neighbourhood and step sizes,''*Evolutionary Programming VI: Proc. of the Sixth Annual Conference on Evolutionary Programming (EP97)*, Lecture Notes in Computer Science, Vol. 1213, Springer-Verlag, Berlin, 1997. pp.297--307.

Available as yao_lin_liu_ep97.ps.gz.- G. A. Riessen, G. J. Williams and
**X. Yao**, ``PEPNet: parallel evolutionary programming for constructing artificial neural networks,''*Evolutionary Programming VI: Proc. of the Sixth Annual Conference on Evolutionary Programming (EP97)*, Lecture Notes in Computer Science, Vol. 1213, Springer-Verlag, Berlin, 1997. pp.35--45. -
**X. Yao**, ``Automatic acquisition of strategies by co-evolutionary learning,''*Proc. of the International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'97)*, Gold Coast, Australia, 10-12 February 1997, pp.23-29.

Available as yao_iccima97.ps.gz. -
**X. Yao**, ``Global optimisation by evolutionary algorithms,''*Proc. of the Second Aizu International Symposium on Parallel Algorithm/Architecture Synthesis (pAs-97)*, Aizu-Wakamatsu, Japan, 17-21 March 1997, IEEE Computer Society Press, pp.282-291.

Available as yao_pas97.ps.gz. **X. Yao**, Y. Liu and P. Darwen, ``Exploiting population information in evolutionary learning,''*Proc. of 1996 Japan-China Joint International Workshops on Information Systems*, M. Gen and W. Xu (ed.), Intelligent Systems Engineering Lab., Ashikaga Institute of Technology, Japan, 4-5 October 1996, pp.41--57. Invited paper.

Available as book_chpt_gen.ps.gz.-
**X. Yao**and T. Higuchi, ``Promises and challenges of evolvable hardware,''*Proc. of the First International Conference on Evolvable Systems: From Biology to Hardware (ICES'96)*, Lecture Notes in Computer Science, Vol. 1259, T. Higuchi, M. Iwata and W. Liu (eds.), Springer-Verlag, Heidelberg, Berlin, pp.55--78. 1997.

Available as ices96_challenge.ps.gz. -
**X. Yao**and Y. Liu, ``EPNet for chaotic time-series prediction,'' In*Simulated Evolution and Learning*,**X. Yao**, J.-H. Kim and T. Furuhashi (eds.), Lecture Notes in Artificial Intelligence, Vol. 1285, pp.146-156, Springer-Verlag, Berlin, 1997.

Also in*Proc. of the First Asia-Pacific Conference on Simulated Evolution And Learning (SEAL'96),*Taejon, Korea, 9-12 November 1996, pp.331-342.

Available as yao_liu_seal96.ps.gz. -
**X. Yao**and Y. Liu (1996d), ``Ensemble Structure of Evolutionary Artificial Neural Networks,''*Proc. of the Third IEEE International Conference on Evolutionary Computation (ICEC'96)*, Nagoya, Japan, 20-22 May 1996, pp.659-664.

(Available as yao_liu_icec96.ps.Z). - P. Darwen and
**X. Yao**(1996a), ``Automatic modularisation by speciation,''*Proc. of the Third IEEE International Conference on Evolutionary Computation (ICEC'96)*, Nagoya, Japan, 20-22 May 1996, pp.88-93.

(Available as darwen_yao_icec96.ps.Z). - P. Darwen and
**X. Yao**(1996b), ``Every niching method has its niche: fitness sharing and implicit sharing compared,''*Proc. of Parallel Problem Solving from Nature (PPSN) IV*, Vol.1141, Lecture Notes in Computer Science, Springer-Verlag, Berlin, pp.398-407, 1996.

(Available as darwen_yao_compare.ps.Z). - Y. Liu and
**X. Yao**, ``Evolutionary design of artificial neural networks with different node transfer functions,''*Proc. of the Third IEEE International Conference on Evolutionary Computation (ICEC'96)*, Nagoya, Japan, 20-22 May 1996, pp.670-675.

(Available as liu_yao_icec96.ps.Z). -
**X. Yao**and Y. Liu, ``Towards Designing Artificial Neural Networks by Evolution,''*Proc. of the International Symposium on Artificial Life and Robotics (AROB)*, B-Con Plaza, Beppu, Oita, Japan, 18-20 February 1996, pp.265-268.

(Available as yao_arob96.ps.Z). -
**X. Yao**and Y. Liu (1996b), ``Fast evolutionary programming,''*Proc. of the Fifth Annual Conference on Evolutionary Programming (EP'96)*, San Diego, CA, USA, 29/2-2/3/96. pp.451-460, the MIT Press.

(Available as ep96_fep_crc.ps.gz). -
**X. Yao**and Y. Liu, ``Evolving artificial neural networks through evolutionary programming,'' Presented at*the Fifth Annual Conference on Evolutionary Programming*, 29 February -- 2 March 1996, San Diego, CA, USA. pp.257-266, the MIT Press.

(Available as ep96_eann_crc.ps.Z). -
**X. Yao**and Y. Liu (1996c), ``Evolutionary artificial neural networks that learn and generalise well,''*Proc. of the 1996 IEEE International Conference on Nueural Networks (ICNN'96), Volume on Plenary, Panel and Special Sessions*, pp.159-164, Sheraton Washington Hotel, Washington, DC, USA, 3-6 June 1996.

(Available as yao_icnn96.ps.Z). -
**X. Yao**and Y. Liu (1995), ``Evolving artificial neural networks for medical applications,''*Proc. of the Australian-Korea Joint Workshop on Evolutionary Computation*, Taejon, Korea, pp.1-16.

(Available as yao95_medical.ps.Z). - P. Darwen and
**X. Yao**(1995a), ``A dilemma for fitness sharing with a scaling function,''*Proc. of 1995 IEEE Conference on Evolutionary Computation (ICEC'95)*, Perth, Australia, IEEE Press, pp.166-171.

(Available as icec95.ps.Z). - Y. Liu,
**X. Yao**and Y. Chen (1995), ``Evolving neural networks,'' Accepted,*Proc. of the International Conference on Parallel Algorithms (ICPA'95)*, Wuhan, P. R. China, Gordon and Breach. - G. Lin,
**X. Yao**, I. Macleod, L. Kang and Y. Chen (1995), ``Parallel genetic algorithms on PVM,'' Accepted,*Proc. of the International Conference on Parallel Algorithms (ICPA'95)*, Wuhan, P. R. China, Gordon and Breach.

(Available as icpa95.ps.Z). - P. Darwen and
**X. Yao**(1995b), ``On evolving robust strategies for iterated prisoner's dilemma,'' In*Progress in Evolutionary Computation*, Lecture Notes in Artificial Intelligence, Vol. 956, Springer-Verlag, Heidelberg, Germany, pp.276-292.

(Available as ai93_ipd.ps.Z). -
**X. Yao**and N. Kanani (1995), ``Call routing by simulated annealing,''*Proc. of the Eighth International Conference on Industrial & Engineering Applications of Artificial Intelligence & Expert Systems (IEA/AIE-95)*, Gordon and Breach Science Publ., pp.737-744. -
**X. Yao**and Y. Shi (1995), ``A Preliminary Study on Designing Artificial Neural Networks Using Co-Evolution,'' Invited paper,*Proc. of IEEE Singapore International Conference on Intelligent Control and Instrumentation (SICICI'95)*, pp.149-154, IEEE Singapore Section.

(Available as sicici95.ps.Z). -
**X. Yao**(1993d), ``Comparison of different neighbourhood size in simulated annealing,'' In*Proc. of the Fourth Australian Conf. on Neural Networks (ACNN'93)*, ed. P. Leong and M. Jabri, Melbourne, pp.216-219.

(Available as acnn93.ps.Z). -
**X. Yao**and B. Marksjö (1992), ``A study of maximum matching on Boltzmann machines,'' In*Artificial Neural Networks II: Proc. of Int'l Conf. on Artificial Neural Networks (ICANN-92)*, Vol. 2, ed. I. Aleksander and J. Taylor, North-Holland, Amsterdam, pp.965-968.

(Available as icann92.ps.Z). -
**X. Yao**and R. Sharpe (1992a), ``Image segmentation by artificial neural networks,'' In*Proc. of Int'l Conf. on Intelligent Information Processing and Systems*, International Academic Publishers, Beijing, pp.151-154. -
**X. Yao**and R. Sharpe (1992b), ``An automated inspection system using artificial neural networks,'' In*Proc. of Int'l Joint Conf. on Neural Networks (IJCNN'92 Beijing)*, IEEE Press, Piscataway, NJ, USA, Vol. 1, pp.727-732. -
**X. Yao**(1992b), ``The complexity of maximum matching on Boltzmann machines,'' In*Proc. of Int'l Joint Conf. on Neural Networks (IJCNN'92 Beijing)*, IEEE Press, Piscataway, NJ, USA, Vol. 1, pp.750-755. -
**X. Yao**(1992c), ``Dynamic neighbourhood size in simulated annealing,'' In*Proc. of Int'l Joint Conf. on Neural Networks (IJCNN'92 Beijing)*, IEEE Press, Piscataway, NJ, USA, Vol. 1, pp.411-416. -
**X. Yao**(1991b), ``On finding approximate solutions to hard problems by neural networks,'' In*Artificial Neural Networks: Proc. of 1991 Int'l Conf. on Artificial Neural Networks (ICANN-91)*, Vol. 2, ed. T. Kohonen et al., North-Holland, Amsterdam, pp.1219-1222. -
**X. Yao**(1991c), ``Evolution of connectionist networks,''*Preprints of the Symp. on AI, Reasoning, and Creativity*, ed. T. Dartnall, Brisbane, pp.49-52. -
**X. Yao**(1991d), ``Some results about solving hard problems by neural networks,''*Proc. of Int'l Conf. for Young Computer Scientists (ICYCS'91)*, International Academic Publishers, Beijing, pp.501-505. -
**X. Yao**(1991e), ``Optimization by genetic annealing,''*Proc. of the 2nd Australian Conf. on Neural Networks (ACNN'91)*, ed. M. Jabri, Sydney, pp.94-97.

(Available as acnn91.ps.Z). -
**X. Yao**and G.-J. Li (1989a), ``Performance analysis of simulated annealing,''*Proc. of the 3rd Pan-Pacific Computer Conf. (PPCC-3)*, ed. L.-W. Chen et al., International Academic Publishers, Beijing, pp.972-980. -
**X. Yao**and G.-J. Li (1989b), ``Solving combinatorial optimization problems by simulated annealing,''*Proc. of PPCC-3*, ed. L.-W. Chen et al., International Academic Publishers, Beijing, pp.981-987. -
**X. Yao**and G.-J. Li (1989c), ``Simulated annealing with general generating and accepting probabilities,''*Proc. Int'l Conf. for Young Computer Professionals (BISYCP'89)*, Beijing, pp.410-414. - Z.-X. Zhao, X.-J. Wu and
**X. Yao**(1989), ``An algorithm for code selection of phase coupled microcode compiler,''*Proc. of PPCC-3*, ed. L.-W. Chen et al., International Academic Publishers, Beijing, pp.747-752.

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