There is always more to learn, and there are always better ways to do what you have done before.
--DONALD E. KNUTH

Biography

 

Research

 

Activity

 

Hobby

 

Travel

 

Link

 

Research Interests:

Estimation, control and diagnosis of discrete event systems
Optimization and approximation algorithms
Petri net theory
Network tomography

To appear:

Yu Ru, C. N. Hadjicostis, Reachability Analysis for a Class of Petri Nets, to appear in Proc. of the 48th IEEE Conf. on Decision and Control, 2009.
Yu Ru, C. N. Hadjicostis, Sensor Selection for Structural Observability in Discrete Event Systems Modeled by Petri Nets, to appear in IEEE Transactions on Automatic Control as a full paper, 2009.

Publications:

2009
Yu Ru, C. N. Hadjicostis, Fault Diagnosis in Discrete Event Systems Modeled by Partially Observed Petri Nets, Discrete Event Dynamic Systems: Theory and Applications, pp.551-575, Vol. 19, Dec 2009.
Yueping Zhang, Vishal Singh, Yu Gu, Guofei Jiang and Yu Ru, QoEScope: Adaptive IP Service Management for Heterogeneous Enterprise Networks, IEEE Int. Workshop on Quality of Service, 2009.
Yu Ru, C. N. Hadjicostis, Bounds on the Number of Markings Consistent with Label Observations in Petri Nets, IEEE Transactions on Automation Science and Engineering, pp.334-344, Vol. 6, No. 2, Apr 2009.

2008
Yu Ru, M. P. Cabasino, A. Giua and C. N. Hadjicostis, Supervisor Synthesis for Discrete Event Systems with Arbitrary Forbidden State Specifications, Proc. of the 47th IEEE Conf. on Decision and Control, pp. 1048-1053, 2008.
Yu Ru, C. N. Hadjicostis, Fault Diagnosis in Discrete Event Systems Modeled by Petri Nets with Outputs, Proc. of 9th Int. Workshop on Discrete Event Systems, pp. 443-448, 2008.

2007
Yu Ru, C. N. Hadjicostis, Approximating Optimal Sensor Selection for Structural Observability in Discrete Event Systems Modeled by Petri Nets, Proc. of the 46th IEEE Conf. on Decision and Control, pp. 1892-1897, New Orleans, Dec 2007.
Yu Ru, C. N. Hadjicostis, Fault-Tolerant Supervisory Control of Discrete Event Systems Modeled by Bounded Petri Nets, Proc. of the 2007 American Control Conference, pp. 4945-4950, New York, Jul 2007.
Yu Ru, C. N. Hadjicostis, Optimal Sensor Selection for Structural Observability in Discrete Event Systems Modeled by Petri Nets, First IFAC Workshop on Dependable Control of Discrete Systems, Paris, France, Jun 2007.

2006
Lingxi Li, Yu Ru and C. N. Hadjicostis, Least-Cost Firing Sequence Estimation in Labelled Petri Nets, Proc. of the 45th IEEE Conf. on Decision and Control, pp. 416-421, San Diego, Dec 2006.
Yu Ru, C. N. Hadjicostis, State Estimation in Discrete Event Systems Modeled by Labeled Petri Nets, Proc. of the 45th IEEE Conf. on Decision and Control, pp. 6022-6027, San Diego, Dec 2006.
Yu Ru, Weimin Wu and C. N. Hadjicostis, Comments on "A Modified Reachability Tree Approach to the Analysis of Unbounded Petri Nets", IEEE Transactions on Systems, Man and Cybernetics -- Part B, pp.1210-1210, Vol. 35, No. 5, Oct 2006.

2005
Yu Ru, Weimin Wu, "The Application of Reverse Net in the Supervisory Control Theory of Discrete Event Systems", Journal of System Simulation, Vol.17 Suppl., pp.213-215, Oct 2005 (in Chinese).
Yu Ru, Weimin Wu and Hongye Su, "The Applicability of a Kind of Supervisor Structure in Supervisory Control Using Petri Net", Automation Theory , Technology and Its Application, Vol. 12, Edited by Min Tan and Feiyue Wang, pp.8-12, Beijing, Aug 2005 (in Chinese).

2004
Yu Ru, Weimin Wu, Hongye Su and Jian Chu, "State Feedback Based Deadlock-free Supervisor Synthesis for Bounded Petri Nets", Proc. of the 2004 IEEE International Conference on Systems, Man and Cybernetics, pp.1666-1671, Hague, Oct 2004.
Yu Ru, Weimin Wu, Hongye Su and Jian Chu, "Supervisor Synthesis for Bounded Petri Nets Based on a Transformation Function", Proc. of the 2004 American Control Conference, pp.4493-4498, Boston, Jun 2004.
Yu Ru, Weimin Wu, Hongye Su and Jian Chu, "Constraint Function Based Hierarchical Control of Discrete Event Systems", Proc. of the 5th World Congress on Intelligent Control and Automation, pp.1065-1069, Hangzhou, Jun 2004.
Yu Ru, Weimin Wu, Hongye Su and Jian Chu, "State Feedback Control of DES on the Finite Forbidden State Problem", Proc. of the 2004 IEEE International Conference on Robotics & Automation, pp.5159-5164, New Orleans, Apr 2004.

2003
Yu Ru, Weimin Wu, "Finite Capacity Place Method Based Deadlock Prevention Algorithm", Journal of System Simulation, Vol.15 Suppl., pp.59-62, Aug 2003 (in Chinese).

Patents:

Yueping Zhang, Yu Ru and Guofei Jiang, "Inferring Physical Network Topology from End-to-End Measurement", US patent pending, NEC Labs America.

Theses:

2005
Yu Ru, Petri Net Supervisor Synthesis on a Class of Finite Forbidden State Specifications, Master Thesis, Hangzhou, Mar 2005 (in Chinese).

2002
Yu Ru, Research on the Deadlock of Petri Nets, Bachelor Thesis, Hangzhou, Jun 2002 (in Chinese).