Current Research | Research Papers | Presentations 
Refereed journal publications

•  Zhang, S., J. Xu, L.-H. Lee, E.-P. Chew, W.-P. Wong, and C.-H. Chen. 2016. Optimal Computing Budget Allocation for Particle Swarm Optimization in Stochastic Optimization. Accepted, IEEE Transactions on Evolutionary Computation, 14 pages. Download

•  Taghiyeh, S. and J. Xu. 2016. A new particle swarm optimization algorithm for noisy optimization. Published online, Swarm Intelligence, 32 pages. Download

•  Zhu, C., J. Xu, C.-H. Chen, L.-H. Lee, J.-Q. Hu. 2016. Balancing search and estimation in random search based stochastic simulation optimization. Published online, IEEE Transactions on Automatic Control, 6 pages. Download

•  Xu, J., S. Zhang, E. Huang, C.-H. Chen, L.-H. Lee, N. Celik. 2016. MOTOS: Multi-fidelity optimization via ordinal transformation and optimal sampling. Asia-Pacific Journal of Operational Research, 33 (3), 26 pages. Download

•  Li, M., F. Yang, R. Uzsoy, and J. Xu. 2016. A metamodel-based Monte Carlo simulation approach for responsive production planning of manufacturing systems. Journal of Manufacturing Systems 38, 114-133. Download

•  Zhang, S., L.-H. Lee, E.-P. Chew, J. Xu, C.-H. Chen. 2016. A simulation budget allocation procedure for enhancing the efficiency of optimal subset selection. IEEE Transactions on Automatic Control 61(1) 62-75. Download

•  Liu, L., J. Xu, C. Qiao, H. Yu, L. Li. 2015. VMSA: A Performance Preserving Online VM Splitting and Placement Algorithm in Dynamic Cloud Environments. Journal of Supercomputing, published online, 72 3169-3193. Download

•  Xu, J., E. Huang, C.-H. Chen, L.-H. Lee. 2015. Simulation optimization: a review and exploration in the new era of cloud computing and big data. Asia-Pacific Journal of Operational Research 32(3), 34 pages. Download

•  Xu, J., Vidyashankar, A., and Nielsen, M. 2014. "Drug Resistance or Re-emergence? Simulating Equine Parasites", ACM Transactions on Modeling and Computer Simulation, 24(4), Article 20. Download

•  Brantley, M.W., Lee, L.-H., Chen, C.-H., and Xu, J. 2014. An Efficient Simulation Budget Allocation Method Incorporating Regression for Partitioned Domains. Automatica, 50: 1391-1400. Download

•  Xu, J., Nelson, B.L., and Hong, L.J. 2013. An Adaptive Hyperbox Algorithm for Discrete Optimization via Simulation. INFORMS Journal on Computing, 25:133-146. Download paper and appendix

•  Malthouse, E., Qiu, D., and Xu, J. 2012. Optimal Selection of Media Vehicles using Customer Databases. Expert Systems with Applications, 39:13035-13045. Download

•  Xu, R., Xu, J., and Wunsch, D.C. 2012. A Comparison Study of Validity Indices on Swarm Intelligence-Based Clustering. IEEE Transactions on Systems, Man and Cybernetics - Part B, 42:1243 - 1256. Download

•  Hong, L.J, Nelson, B.L., Xu, J. 2011. “Speeding Up COMPASS for High-Dimensional Discrete Optimization via Simulation”. Operations Research Letters, 38(6) 550-555. Download

•  Xu, J., Nelson, B.L., Hong, L. J. 2010. “Industrial Strength COMPASS: A Comprehensive Algorithm and Software for Optimization via Simulation”, ACM Transactions on Modeling and Computer Simulation, 20(1). Download

•  Subramanian, D., Huang, P., Pulavarthi, C., Xu, J., Sekhar, H., Zhan, S., Tripathi, S. and Kumar, S. 2010. “Risk-adjusted approach to optimize investments in product development portfolios”, IBM Journal of Research & Development, 54(3). Download

•  Xu, R., Xu, J., Wunsch, D.C. 2009. “MicroRNA expression profile based cancer classification using Default ARTMAP”, Neural Networks 22(5) 774-780. Download

•  Xiao, S., Zeng, Q., Wang, J., Xu, J., and Wang, Y. 2003. Realization of multiwavelength label optical packet switching. IEEE Photonics Technology Letters, 15:605-607. Download

Working papers

•  Nagaraj, K., J. Xu, S. Ghosh, and R. Pasupathy. Efficient Estimation in the Tails of Gaussian Copulas. Under review for Operations Research. Download

•  Xu, J., Hopp, W.J., and Nelson, B.L. 2014. The Impact of Production/Distribution System Structure on Product Line Proliferation Strategies, under revision for IIE Transactions.

•  Vidyshankar, A. and Xu, J. 2014. Stochastic Optimization using Disparities: A Data-driven Strategy, working paper.

•  Guharay, S., K.-C. Chang, J. Xu. Robust Estimation of Value-at-Risk Through Distribution-Free and Parametric Approaches in Modern Operational Risk Management. Under review for European Journal of Operational Research.

Selected Conference Proceedings Papers

•  Xu, J., S. Zhang, C. C. Huang, C. H. Chen, L. H. Lee, and N. Celik, An Ordinal Transformation Framework for Multi-Fidelity Simulation Optimization, Proceedings of 2014 IEEE Conference on Automation Science and Engineering, 385-390, Taipei, Taiwan, 2014.

•  Xu, J., Zhang, S., Huang, E., Chen, C.-H., Lee, L.H., and Celik, N.. 2014. Efficient Multi-Fidelity Simulation Optimization. In Proc. of 2014 Winter Simulation Conference.

•  Li, M., Yang, F., and Xu, J. 2014. A Metamodeling-based Approach for Production Planning. In Proc. of 2014 Winter Simulation Conference.

•  Liu, L., Xu, J., Qiao, C., Yu, H., and Li, L. 2014. A Novel Performance Preserving VM Splitting and Assignment Scheme. Proc. of 2014 IEEE International Conference on Communications, 4215-4220, Sydney, Australia, 2014.

•  Zhu, C., Xu, J., Chen, C.-H., Lee, L.-H., and Hu, J.-Q. 2013. Determining the optimal sampling set size for random search. In Proc. of 2013 Winter Simulation Conference, pp. 1016-1024, Washington, D.C. 2013.

•  Vidyashankar, A. V. and Xu, J. 2013. Adaptive Nested Rare Event Simulation Algorithms. In Proc. of 2013 Winter Simulation Conference, pp. 736-744, Washington, D.C. 2013.

•  Collamore, C., Vidyashankar, A., and Xu, J., 2013. Rare Event Simulation for Stochastic Fixed Point Equations Related to the Smoothing Transformation. In Proc. of 2013 Winter Simulation Conference, pp. 555-563, Washington, D.C. 2013.

•  Xu, J. 2012. Efficient Discrete Optimization via Simulation Using Stochastic Kriging. In Proc. of 2012 Winter Simulation Conference, pp. 466-477.

•  Xu, R., Xu, J., Wunsch, D.C. 2010. “Clustering with Differential Evolution Particle Swarm Optimization”. IEEE World Congress on Computational Intelligence, Barcelona, Spain. Best Overall Paper Award.

•  Huang, P., Subramanian, D., Xu, J. 2010. “An importance sampling method for portfolio CVaR estimation with Gaussian copula models”, Winter Simulation Conference, Baltimore, Maryland.

•  Xu, R., Xu, J., Wunsch, D.C. 2009. “Using default ARTMAP for cancer classification with MicroRNA expression signatures”, International Joint Conference on Neural Networks, Atlanta, GA.

•  Xu, J., Nelson, B.L., Hong, L. J. 2007. “Industrial Strength COMPASS for Optimization via Simulation”, Proceedings of the 2007 INFORMS Simulation Society Research Workshop.