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(Samuel) Qing-Shan JIA

 

Last Update:    Mar. 22nd, 2008    ÖÐÎÄ°æ(Chinese Version)  

Education    Research Interest    Academic Activities    Projects    Publications    Honors, Awards, and Scholarships    Contact Information

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Education

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Research Interest   

Discrete Event Dynamic Systems (DEDS) are in our everyday life, such as manufacture system, transportation system, and communication system.  This kind of systems cannot be described through differential equations.  We can only evaluation the performance through simulation.  It is a practical and valuable research direction how to combine the simulation and optimization effectively.  My current research is based on schedule problem in manufacture system.  

Optimization through simulation can be modeled into stochastic optimization.  In other words, the objective function and the constraints relate to some stochastic variables, which furthermore can only be observed through simulation and the probability characteristic of which is unknown.  Prof. Xi-Ren CAO and Prof. Yu-Chi HO developed Perturbation Analysis (PA) in 1980s, which helps to extract the gradient information from one simulation.  Prof. HO developed Ordinal Optimization (OO) in 1990s, which helps to lessen the computation burden in stochastic optimization through exponential convergence of the order and goal softening.  My current research aims at the application and generalization of OO.

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Academic Activities

Committee Member

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Membership

Given Seminars

Tutorial

News!

For those who will attend this tutorial or IFAC WC 2008, you can buy the book "Ordinal Optimization: Soft Optimization for Hard Problems" at a 20% discount. Check the flyer here. For email and mail orders, please send to the orders department of Springer a copy of this flyer with your orders. For phone orders, please mention this flyer when you order. Also, if you would like to order 25 books (or any number greater than 25) as a bulk order, Springer would give you a bulk sale price with a discount of 40%. (Bulk orders should be placed by June 5, 2008).

Reviewer of International Journals

Reviewer of International Conferences

Volunteers

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Projects

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Publications

Monograph

Journal Papers

  • Xia, L., Zhao, Q., and Jia, Q.-S., "A structure property of optimal policies for maintenance problems with safety-critical components," IEEE Transactions on Automation Science and Engineering, to appear.
  • Jia, Q.-S., Ho, Y.-C., and Zhao, Q.-C., "Comparison of selection rules for ordinal optimization," Mathematical and Computer Modelling, Vol. 43, No. 9-10, pp. 1150-1171, 2006.
  • Ho, Y.-C., Jia, Q.-S., and Zhao, Q.-C., "The equivalence between ordinal optimization in deterministic complex problems and in stochastic simulation problems," Discrete Event Dynamic Systems: Theory and Applications, Vol. 16, pp. 405-411, 2006.
  • Zhao, Q.-C., Jia, Q.-S., and Cao, Y., "How much spare capacity is necessary for the security of resource networks?" Physica A: Statistical and Theoretical Physics, Vol. 373, pp. 861-873, Jan. 2007.
  • Zhao, Q.C., Ho, Y.C., and Jia, Q.S., "Vector ordinal optimization," Journal of Optimization Theory and Applications, Vol. 125, No. 2, pp. 259-274, May 2005.
  • Zhu, H.-J., Cai, Z.-X., Liu, H.-M., Jia, Q.-S., Ni, Y.-X., and Wu, F.F., "Coordinate optimization of ac/dc fuzzy damping controller using ordinal genetic algorithm," Proceedings of the Chinese Society of Electrical Engineering, Vol. 26, No. 13, pp. 7-13, 2006.

Conference Papers

  • Jia, Q.-S. and Zhao, Q., ¡°How topology affects security: An upper bound of electric power network security,¡± the 17th IFAC World Congress, Seoul, Korea, Jul. 6-11, 2008.
  • Jia, Q.-S., ¡°A potential-based method for finite-stage Markov decision processes,¡± the 2008 American Control Conference, Seattle, Washington, USA, Jun. 11-13, 2008.
  • Jia, Q.-S., ¡°Coordination of supply chains with downside-risk-averse agents,¡± the 11th International Symposium on Logistics, Beijing, China, Jul. 9-11, 2006.
  • Jia, Q.-S., Zhao, Q.-C., and Ho, Y.-C., ¡°A method based on Kolmogorov complexity to improve the efficiency of strategy optimization with limited memory space,¡± In: Proceedings of the 2006 American Control Conference (ACC2006), Minneapolis, Minnesota, USA, Jun. 14-16, 2006. pp. 3105-3110.
  • Jia, Q.-S. and Zhao, Q.-C., "A svm-based method for engine maintenance strategy optimization," In: Proceedings of the 2006 IEEE International Conference on Robotics and Automation (ICRA2006), Hilton in the Walt Disney World Resort, Orlando, Florida, USA, May 15-19, 2006. pp. 1066-1071.
  • Xia, L., Zhao, Q., and Jia, Q.-S., "The SRLF rule in multi-unit joint replacement maintenance problem and its optimality," 12th INFORMS/APS Conference, June 23-25, 2004, Beijing, China.
  • Song, C., Guan, X., Zhao, Q., and Jia, Q., "Planning remanufacturing systems by constrained ordinal optimization method with feasibility model," 44th IEEE Conference on Decision and Control and European Control Conference ECC 2005, Seville, Spain, Dec. 12-15, 2005. pp. 4676-4681.

Technical Report

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Honors, Awards, and Scholarships

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Contact Information

Mailing Address:   Center For Intelligent and Networked Systems (CFINS), Dept. of Automation, Tsinghua University, Beijing, 100084, P. R. China

Lab:        FIT 3-626, Tsinghua University

Tel:        +86-10-62773006 (Lab)

Fax:       +86-10-62786911

Email:    jiaqs@tsinghua.edu.cn

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Welcome for discussion on any of the above research directions!

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