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Zhen Liu
Head of Nokia Research Center
Beijing, China
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Dr. Zhen Liu is Head of Nokia Research Center (NRC) Beijing. Nokia Research Center drives breakthroughs that reach far into the future, enabling new business opportunities for Nokia. As Head of Nokia Research Center Beijing, Zhen is responsible for research teams in China, India and Africa that pursue disruptive innovation. NRC Beijing works closely with all Nokia operating units and promotes open innovation, working on research projects in collaboration with leading universities and research institutes in Asia and Africa.

Background

Zhen joined Nokia in 2008 as the Head of NRC Beijing. He holds a Ph.D degree in Computer Science from the University of Orsay (Paris XI), France. Zhen’s research background is in distributed and networked systems, web services, stream processing systems, mobile computing and sensor networks, performance modeling, distributed optimization and control. Zhen has extensive experiences in managing research teams and research projects.

Before joining Nokia, Zhen was with IBM T. J. Watson Research Center and served as the manager of System Analysis and Optimization group, and the senior manager of the Next Generation Distributed Systems department. Prior to this experience, Zhen worked in Orange Labs (formerly France Telecom R&D) as a Research Associate, and in INRIA (the French national research center on information and automation), first as a Researcher, then became a Research Director. While he was with INRIA, Zhen was also an adjunct professor of the University of Paris VI (University of Pierre & Marie Curie) and the University of Nice - Sophia Antipolis, France. He taught DEA (i.e. Frecnch graduate) courses of Operations Research, Networking and Parallel Computing, and advised Ph.D. students in these areas.

 

Professional Activities

Zhen is a fellow of IEEE, a member of the IFIP W.G. 7.3. He has served NSF Panels and a number of conference program committees. Zhen Liu was the general chair of the ACM Sigmetrics 2008 Conference, co-chair of ACM HotMetrics 2008, program co-chair of the Joint Conference of ACM Sigmetrics and IFIP Performance 2004, technical program co-chair of Sensorcomm 2009, and area TPC chair for INFOCOM 2008 and INFOCOM 2009. Zhen is on the editorial boards of several journals including IEEE Transactions on Service Computing and the Journal of Performance Evaluation.

Zhen has given keynotes and distinguished lectures in various conferences and universities.

 

Publications

Zhen published 6 edited books and special issues, 8 book chapters and over 180 papers in peer-reviewed journals and conferences, and has got a best paper award. Below are some selected recent papers.

    Books and Special Issues:
    1. Z. Liu, Z.-L. Zhang (Guest Eds.): Proceedings of the First Workshop on Hot Topics in METRICS (HotMETRICS’08), HotMETRICS 2008, June 6, 2008, Annapolis, MD, USA. ACM Performance Evaluation Review, Volume 36, Number 2, September 2008.
    2. Z. Liu, V. Misra, P. Shenoy (Eds.): Proceedings of the International Conference on Measurements and Modeling of Computer Systems, SIGMETRICS 2008, June 2-6, 2008, Annapolis, MD, USA. ACM Press 2008.
    3. Z. Liu, C. H. Xia (Eds), Performance Modeling and Engineering, Springer, May 2008.
    4. Z. Liu (Guest Editor), Long Range Dependence and Heavy Tail Dstributions, Special Issue of Performance Evaluations, Vol. 61, Issues 2+3, July 2005.
    5. E. G. Coffman Jr., Z. Liu, A. Merchant (Eds.): Proceedings of the International Conference on Measurements and Modeling of Computer Systems, SIGMETRICS 2004, June 10-14, 2004, New York, NY, USA. ACM Press 2004.
    6. P. Chretienne, E. G. Coffman, J. K. Lenstra, Z. Liu, (Eds.), Scheduling Theory and Its Applications, J. Wiley, 1995.

    Recent Publications in journals:
    7. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, "Semantic Matching, Propagation and Transformation for Composition in Component-Based Systems.” To appear in International Journal of Software Science and Computational Intelligence.
    8. Z. Liu, A. Ranganathan, A. Riabov. "Specifying and Enforcing High-Level Semantic Obligation Policies" (Extended Version). To appear in Journal of Web Semantics.
    9. N. Bansal, Z. Liu, A. Sanker, “Bin-Packing with Fragile Objects and Frequency Allocation in Cellular Networks”, to appear in Wireless Networks.
    10. P. Dube, N. Halim, K. Karenos, M. Kim, Z. Liu, S. Parthasarathy, D. Pendarakis, H. Yang, "HARMONY: Holistic Messaging Middleware for Event-Driven Systems", to appear in IBM Systems Journal, 2008.
    11. Z. Liu, A. Tang, C. H. Xia, L. Zhang, “A Decentralized Control Mechanism for Stream Processing Networks”, Annals of Operations Research, Special issue on Stochastic Performance Models for Resource Allocation in Communication Systems, 2008.
    12. H. Feng, Z. Liu, C. H. Xia, L. Zhang, “Load Shedding and Distributed Resource Control of Stream Processing Networks”, Performance Evaluation, 64(9-12): 1102-1120, 2007. (also appeared in proceedings of Performance 2007)
    13. P. Dube, Z. Liu, L. Wynter, C. Xia, "Competitive Equilibrium in e-Commerce: Pricing and Outsourcing", special issue on Outsourcing, Computers and Operations Research, Vol 34, Issue 12, 3541-3559, 2007.
    14. M. Lelarge, Z. Liu, A. Riabov, “Automatic Composition of Secure Workflows”, to appear in Journal of Autonomic and Trusted Computing, special issue on on Autonomic and Trusted Computing Systems and Applications.
    15. Z. Liu, L. Wynter, C.H. Xia, and F. Zhang. “Parameter Inference of Queueing Models for IT Systems using End-to-End Measurements”, Journal of Performance Evaluation. 2006, Vol. 63, pp. 36—60.
    16. W. Lin, Z. Liu, C. Xia, L. Zhang, "Optimal Capacity Allocation for Web Systems with End-to-End Delay Guarantees”. Performance Evaluation. 2005. Vol: 62, No: 1-4, p 400-416.
    17. C. Xia, Z. Liu, M. S. Squillante, L. Zhang, N. Malouch, "Web Traffic Modeling at Finer Time Scales and Performance Implications", Journal of Performance Evaluation, Special Issue on Long Range Dependence and Heavy Tail Distributions, 2005. Vol: 61, No: 2-3, p 181-201.

    Selected Recent Papers in proceedings of international conferences
    18. E. Bouillet, P. Dube, D. George, Z. Liu, D. Pendarakis, L. Zhang, " Distributed Multi-Layered Workload Synthesis for Testing Stream Processing Systems”, Winter Simulation Conference (WSC 2008), Miami, FL, December 2008.
    19. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, "A Tag-Based Approach for the Design and Composition of Information Processing Applications” Proceedings of OOPSLA 2008 (International Conference on Object-Oriented Programming, Systems, Languages, and Applications), Nashville, TN, October 2008.
    20. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, "Faceted Requirements-Driven Approach to Service Design and Composition” Proceedings of International Conference on Web Services (ICWS 2008), Beijing, China, September 2008.
    21. Z. Liu, H. Yang, F. Ye, "A Replication Overlay Assisted Resource Discovery Service for Federated Systems” Proceedings of ICPP 2008 (37th International Conference on Parallel Processing), Portland, OR, September 2008. (Best paper award of ICPP 2008)
    22. E. Bouillet, M. Feblowitz, H. Feng, Z. Liu, A. Ranganathan, A. Riabov, "A Folksonomy-Based Model of Web Services for Discovery and Automatic Composition” Proceedings of SCC 2008 (International Conference on Service Computing), Honolulu, HI, July 2008.
    23. Z. Liu, S. Parthasarathy, A. Ranganathan and H. Yang, “A Generic Flow Algorithm for Shared Filter Ordering Problems”. PODS 2008 (28th ACM SIGMOD/PODS International Conference on Management of Data / Principles of Database Systems), Vancouver, BC, Canada, June 2008.
    24. Z. Liu, S. Parthasarathy, A. Ranganathan and H. Yang, “Near-Optimal Algorithms for Shared Filter Evaluation in Data Stream Systems”. SIGMOD 2008 (28th ACM SIGMOD/PODS International Conference on Management of Data / Principles of Database Systems), Vancouver, BC, Canada, June 2008.
    25. A. Riabov, E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, "Wishful Search: Interactive Composition of Data Mashups.” Proceedings of WWW 2008 (17th International World Wide Web Conference), Beijing, China, April 2008.
    26. Y. Lei, Z. Liu, D. Towsley, C.H. Xia, “Distributed Operator Placement and Data Caching for In-Network Stream Query Processing”. IEEE Infocom 2008.
    27. M. Kim, Z. Liu, S. Parthasarathy, D. Pendarakis, H. Yang, "Association Control in Mobile Wireless Networks", Proc. IEEE International Conference on Computer Communications (Infocom 2008), Phoenix, Arizona, April 2008.
    28. M. Branson, F. Douglis, B. Fawcett, Z. Liu, A. Riabov, F. Ye, "CLASP: Collaborating, Autonomous Stream Processing Systems," 8th International Middleware Conference, November 2007.
    29. H. Feng, Z. Liu, C.H. Xia, L. Zhang, “Load Shedding and Distributed Resource Control of Stream Processing Networks”, IFIP Performance Conference, 2007.
    30. Z. Liu, A. Ranganathan, A. Riabov. "A Planning Approach for Message-Oriented Semantic Web Service Composition". In AAAI '07, Vancouver, BC, Canada, July 22-26, 2007.
    31. C.H. Xia, Z. Liu, D. Towsley, M. Lelarge, “Scalability of Fork/Join Queueing Networks with Blocking”. ACM SIGMETRICS 2007.
    32. Z. Liu, A. Ranganathan, A. Riabov. "Modeling Web Services using Semantic Graph Transformations to aid Automatic Composition". In ICWS '07 (IEEE International Conference on Web Services), Salt Lake City, Utah, July 13-19, 2007.
    33. Z. Liu, A. Ranganathan, A. Riabov. "Specifying and Enforcing High-Level Semantic Obligation Policies". In IEEE Policy '07, Bologna, Italy, June 13-15, 2007
    34. F. Ye, H. Yang, Z. Liu, "Catching Moles in Sensor Networks", Proc. IEEE International Conference on Distributed Computing Systems (ICDCS), Toronto, Canada, June 2007.
    35. K. Anderson, J. Bigus, E. Bouillet, P. Dube, N. Halim, Z. Liu, D. Pendarakis, "SWORD: Scalable and Flexible Workload Generator for Distributed Data Processing Systems", Winter Simulation Conference (WSC 2006), Monterey CA, December 2006.
    36. A. Riabov, Z. Liu, “Scalable Planning for Distributed Stream Processing Systems”, ICAPS, June 2006.
    37. Q. Zhao, J. Xu, Z. Liu, ``Design of a Novel Statistics Counter Architecture with Optimal Space and Time Efficiency'', Proc. of ACM SIGMETRICS 2006/IFIP Performance 2006, Saint Malo, France, June 2006.
    38. J. Fan, D. Pendarakis, Z. Liu, T. Chang, "Cost-Effective Configuration of Content Resiliency Services under Correlated Failures", 2006 International Conference on Dependable Systems and Networks (DSN-2006), Philadelphia, PA, June 25-28, 2006.
    39. A. Riabov, Z. Liu, Planning for Stream Processing Systems , AAAI-2005, July 2005
    40. F. Baccelli, A. Chaintreau, Z. Liu, A. Riabov, “Scalability of Reliable Group Communication Using Overlays”, INFOCOM 2005.
    41. B. Liu, Z. Liu, P. Nain, D. Towsley, “Properties of Random Direction Models”, INFOCOM 2005.
    42. A. Kashyap, L. Lastras, Z. Liu, C.H. Xia. “Data gathering sensor networks: How much data do we really need?” Data Compression Conference 2005. Snowbird, Utah, March 29 - 31, 2005.

 

Patents

Zhen Liu was master inventor at IBM and has obtained 16 patents granted.

    1. Z. Liu, A. Shankar, Maximum lifetime routing in wireless ad-hoc networks, European Patent # EP 1573976, issued July 2008.
    2. Z. Liu, S. Sahu, J. I. Silber, Method and apparatus for failure resilient data forwarding over a computer network, US Patent #7392319, issued June 2008.
    3. D. M. Dias, R. P. King, Z. Liu, M. S. Squillante, H. Xia, S. Yu, L. Zhang, Apparatus and methods for co-location and offloading of Web site traffic based on traffic pattern recognition, US Patent #7386611, issued June 2008.
    4. Z. Liu, L. Wynter, L. Zhang, Method and apparatus for predicting future travel times over a transportation network, US Patent #7363144, issued April 2008.
    5. Z. Liu, G. V. Popescu, Method of stateless group communication and repair of data packets transmission to nodes in a distribution tree, US Patent #7355968, issued April 2008 (also issued as CN Patent #ZL200410011740.1, April 2007)
    6. F. Baccelli, A. Chaintreau, Z. Liu, S. Sahu, Method and apparatus for group communication with end-to-end reliability, US Patent #7355975, issued April 2008.
    7. Z. Liu, P. Momcilovic, H. Xia, L. Zhang, Method and apparatus for automatic model building inference for IT systems, US Patent #7296256, issued November 2007.
    8. Z. Liu, G. Popescu, S. Sahu, Method and apparatus for virtualizing network resources, CN Patent #ZL200410011828.3, issued August 2007.
    9. Z. Liu, M. Raghavachari, H. Xia, L. Zhang, Method and apparatus for automatic system parameter configuration for performance improvement, US Patent #7272707, issued September 2007.
    10. Z. Liu, L. Wynter, Method and apparatus for end-to-end travel time estimation using dynamic traffic data, US Patent #7236881, issued June 2007.
    11. P. Frossard, Z. Liu, O. Verscheure, Method and apparatus for multimedia stream scheduling in resource constrained environment, US Patent #7228535, issued June 2007.
    12. Z. Liu, H. Xia, L. Zhang, Clock synchronization for network measurements with clock resets, US Patent #7194649, issued March 2007.
    13. Z. Liu, G. Popescu, Method of establishing transmission headers for stateless group communication, CN Patent #ZL200410011725.7, issued February 2007.
    14. Z. Liu, H. Xia, L. Zhang, Clock synchronization with removal of clock skews through network measurements in derivation of a convex hull, US Patent #6957357, issued October 2005.
    15. D. M. Dias, R. P. King, Z. Liu, M. S. Squillante, H. Xia, S. Yu, L. Zhang, Apparatus and methods for co-location and flooding of web site, TW Patent #I243313, issued November 2005.
    16. N. Halim, Z. Liu, M. S. Squillante, H. Xia, S. Yu, L. Zhang, Apparatus and methods for classification of Web sites, TW Patent #I234081, issued June 2005.
 
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