Publications

List of Publications of Zhen LIU
(in reversed chronological order)

    Books and Special Issues:
  1. Z. Liu (Guest Editor), Long Range Dependence and Heavy Tail Dstributions, Special Issue of Performance Evaluations, Vol. 61, Issues 2+3, July 2005.
  2. Ed. 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.
  3. P. Chretienne, E. G. Coffman, J. K. Lenstra, Z. Liu, (Eds.), Scheduling Theory and Its Applications, J. Wiley, 1995.

    Chapters in books:
  4. F. Ye, H. Yang, Z. Liu, S. Wong, S. Lu, L. Zhang, M. Srivastava, "Preserving Data Authenticity in Wireless Sensor Networks: Attacks and Countermeasures", in "From Problem to Solution: Wireless Sensor Networks Security", edited by Zhen Jiang, Nova Science Publishers, Inc., 2007.
  5. Z. Liu, P. Nain, “Optimization Problems in Web Search Engines”, to appear in the Handbook of Optimization in Telecommunications. M. G. C. Resende, P. M. Pardalos (Eds.), Springer, pp. 981-1016, 2005.
  6. Z. Liu, N. Niclausse and C. Jalpa-Villanueva, “Web Server Benchmarking and Web Traffic Modeling”, In System Performance Evaluation: Methodologies and Applications}, E. Gelenbe (Ed.), CRC Press, 1999.
  7. Z. Liu, “Majorization and Stochastic Comparison Techniques for Scheduling of Parallel Systems”, in QuantitativeMethods in Parallel Systems, Baccelli et al. (Eds.), Springer, 1995, pp. 206--219.
  8. Z. Liu, E. Sanlaville, “Profile Scheduling by List Algorithms”, in Scheduling Theory and Its Applications, P. Chretienne et al. (Eds.), J. Wiley, 1995, pp. 95-114.
  9. L. Finta, Z. Liu, “Makespan Minimization of Task Graphs with Random Task Running Times”, in Interconnection Networks and Mapping and Scheduling Parallel Computations, D. F. Hsu et al. (Eds.), AMS, DIMACS Series in Discrete Mathematics and Theoretical Computer Science, Vol. 21, pp. 125--138, 1995.
  10. O. J. Boxma, G. M. Koole, Z. Liu, “Queueing-Theoretic Solution Methods for Models of Parallel and Distributed Systems”, in Performance Evaluation of Parallel and Distributed Systems --- Solution Methods, O.J. Boxma and G.M. Koole (Eds.), CWI Tract 105 \& 106, pp. 1-24, CWI, Amsterdam, 1994.
  11. F. Baccelli, A. Jean-Marie, Z. Liu, “A Survey on Solution Methods for Task Graph Models”, in Second QMIPS Workshop, Gotz, Herzog, Rettelbach (Eds.), Arbeitsberichte der IMMD, Vol. 26, 14, Erlangen, March 1993.
  12. F. Baccelli, A. Jean-Marie, Z. Liu, “Using Stochastic Recursive Equations as a Tool for Modeling and Performance Evaluation of Parallel Processing Systems”, in Second QMIPS Workshop, Gotz, Herzog, Rettelbach (Eds.), Arbeitsberichte der IMMD, Vol. 26, 14, Erlangen, March 1993.

    Publications in journals:
  13. Z. Liu, A. Ranganathan, A. Riabov. "Specifying and Enforcing High-Level Semantic Obligation Policies" (Extended Version). To appear in Journal of Web Semantics.
  14. N. Bansal, Z. Liu, A. Sanker, “Bin-Packing with Fragile Objects and Frequency Allocation in Cellular Networks”, to appear in Wireless Networks.
  15. 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.
  16. 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, 2007.
  17. 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)
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. 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.
  23. W.Q. Lin, Z. Liu, C.H. Xia and L. Zhang “Cost Minimization of Multi-Tiered e-Business Infrastructure with End-to-End Delay Guarantees”. ACM Sigmetrics Performance Evaluation Review, 2004.
  24. C. S. Chang, Z. Liu, “A Bandwidth Sharing Theory for a Large Number of HTTP-like Connections”. IEEE/ACM Transactions on Networking, 2004.
  25. C. H. Xia, Z. Liu, M. S. Squillante, L. Zhang, “Lower Bounds for LRD/GI/1 Queues with Subexponential Service Times”, Probability in Engineering and Information Sciences, Vol. 18, No. 1, 2004.
  26. W. Lin, Z. Liu, C. H. Xia, Hard Deadline Queueing System with Application to Unified Messaging Services. ACM Sigmetrics Performance Evaluation Review, 2003.
  27. C. H. Xia, Z. Liu, M. S. Squillante, L. Zhang, and N. Malouch, Traffic Modeling and Performance Analysis of Commercial Web Sites, ACM Sigmetrics Performance Evaluation Review, December, 2002.
  28. J. Blazewicz, Z. Liu, “Linear and Quadratic Algorithms for Scheduling Chains and Opposite Chains”, Europeen Journal of Operations Research, Vol. 137, 2002, pp. 248-264.
  29. Z. Liu, N. Niclausse, C. Jalpa-Villanueva. “Traffic Model and Performance Evaluation of Web Servers”, Performance Evaluation, Vol. 46/2-3, pp 77-100, 2001.
  30. J. Talim, Z. Liu, P. Nain, E. G. Coffman, Jr., “Optimizing the Number of Robots for Web Search Engines”, Journal of Telecommunication Systems, Vol. 17, pp. 243-264, 2001.
  31. Z. Liu, R. Righter, “The Impact of Cell Dropping Policies in ATM Networks”, Operations Research, Jan-Feb., 2001.
  32. G. Koole, Z. Liu, R. Righter, “Optimal Transmission Policies for Noisy Channels”, Operations Research, Nov-Dec. 2001, Vol. 49, No. 6.
  33. Z. Liu, R. Righter, “Optimal Parallel Processing of Random Task Graphs”, Journal of Scheduling, Volume 4, Issue 3, 2001. pp. 139-156.
  34. E. Altman, Z. Liu, R. Righter, “Scheduling of Input-Queued Switch to Achieve Maximal Throughput”, Probability in the Engineering and Information Sciences, Vol. 14, pp. 327--334, 2000.
  35. A. Hordijk, Z. Liu, D.Towsley, “Smoothing Effect of the Superposition of Homogeneous Sources in Tandem Networks”, Journal of the Applied Probability, Vol. 37, 2000, pp. 900-913.
  36. Z. Liu, “Dynamic Scheduling of Parallel Computations”, Theoretical Computer Science, Vol. 246, pp. 239-252, 2000.
  37. Z. Liu, P. Nain, D. Towsley, “On a Generalization of Kingman's Bounds”, Mathematical Methods of Operations Research, Vol. 49, No. 2, pp. 325--333, 1999.
  38. Z. Liu, R. Righter, “Scheduling Multicast Input-Queued ATM Switches”, Journal of Scheduling, Vol. 2, 1999, pp. 99---114.
  39. Z. Liu, P. Nain, D. Towsley, Z.-L. Zhang, “Asymptotic Behavior of a Multiplexer Fed by a Long-Range Dependent Process”, Journal of Applied Probability, Vol. 36, No. 1, pp. 105--118, 1999.
  40. Z. Liu, R. Righter, “Optimal Load Balancing on Distributed Homogeneous Unreliable Processors”, Operations Research, Vol. 46, No. 4, pp. 563--573, August 1998.
  41. Z.-L. Zhang, Z. Liu, D. Towsley, “Closed-Form Deterministic End-to-End Performance Bounds for the Generalized Processor Sharing Scheduling Discipline”, Journal of Combinatorial Optimization, special issue on Scheduling. Vol. 1, No.4, pp. 457--481, 1998.
  42. Z. Liu, “Performance Analysis of Stochastic Timed Petri Nets using Linear Programming Approach”, IEEE Trans. on Software Engineering, Vol. 24, No. 11, pp. 1014--1030, November 1998.
  43. E. G. Coffman, Z. Liu, R. Weber, “Optimal Robot Scheduling for Web Search Engines”, Journal of Scheduling, Vol. 1, pp. 15-29, 1998.
  44. A. Jean-Marie, Z. Liu, P. Nain, D. Towsley, “Computational aspects of the workload distribution in the MMPP/GI/1 queue”, IEEE Journal on Selected Areas of Communications”, Vol. 16, pp. 640---652, June 1998. Special issue on computational aspects of teletraffic models.
  45. Z. Liu, “Worst-Case Analysis of Scheduling Heuristics of Parallel Systems”, Parallel Computing, Vol. 24, issue 4-5, pp. 863-891, 1998.
  46. A. Jean-Marie, S. Lefebvre-Barbaroux, Z. Liu, “An Analytical Approach to the Performance Evaluation of Master-Slave Computational Models”, Parallel Computing, Vol. 24, issue 4-5, pp. 841-862, 1998.
  47. G. Koole, Z. Liu, “Stochastic Bounds for Queueing Systems with Multiple On-Off Sources”, Probability in the Engineering and Information Sciences, Vol. 12, pp. 25-48, Jan. 1998.
  48. Z. Liu, P. Nain, D. Towsley, “Exponential Bounds with an Application to Call Admission”, Journal of the ACM, Vol. 44, No. 2, pp. 366-394, 1997.
  49. J.-C. Bermond, Z. Liu, M. Syska, “Mean Eccentricities of de Bruijn Networks”, Networks, Vol. 30, pp. 187-203, 1997.
  50. Y. Dallery, Z. Liu, D. Towsley, “Properties of Fork/Join Queueing Networks with Blocking under Various Operating Mechanisms”, IEEE Trans. on Robotics and Automation, Vol. 13, No. 4, pp. 503---518, Aug. 1997.
  51. Z.-L. Zhang, Z. Liu, J. Kurose, D. Towsley, “Call Admission Control Schemes under the Generalized Processor Sharing Scheduling Discipline”, Telecommunication Systems, Vol. 7, No. 1-3, pp. 125-152, July 1997.
  52. L. Finta, Z. Liu, “Complexity of Task Graph Scheduling with Fixed Communication Capacity”, International Journal of Fondations of Computer Science, Vol. 8, No. 1 (1997), pp. 43--66.
  53. Z. Liu, E. Sanlaville, “Stochastic Scheduling with Variable Profile and Precedence Constraints”, SIAM J. on Computing, Vol. 26, No. 1, pp. 173--187, 1997.
  54. Z. Liu, R. Righter, “Optimal Scheduling on Parallel Processors under Precedence Constraints for General Costs”, Probability in the Engineering and Information Sciences, Vol. 11, pp. 79-93, Jan. 1997.
  55. J. Blazewicz, Z. Liu, “Scheduling Multiprocessor Tasks with Chain Constraints”, European Journal on Operations Research, Vol. 94, pp. 231--241, 1996.
  56. L. Finta, Z. Liu, “Single Machine Scheduling Subject to Precedence Delays”, Discrete Applied Mathematics, Vol. 70, pp. 247-266, 1996.
  57. L. Finta, Z. Liu, I. Milis, E. Bampis, “Scheduling UET-UCT Series-Parallel Graphs on Two Processors”, Theoretical Computer Science, special issue on Parallelism and Irregularly Structured Problems, Vol. 162, pp. 323--340, July 1996.
  58. Z. Liu, T. Y. Sung, “Routing and Transmitting Problems in de Bruijn Networks”, IEEE Trans. on Computers, Vol. 45, pp. 1056--1062, Sept. 1996.
  59. E. Altman, Z. Liu, “Improving the Stability Characteristics of Asynchronous Traffic in FDDI Token Ring”, Performance Evaluation, Vol. 26, pp. 219--234, 1996.
  60. Z. Liu, P. Nain, D. Towsley, “Sample Path Methods in the Control of Queues”, Queueing Systems, Vol. 21, pp. 293--335, special issue on Optimal Control in Queueing Systems, 1995.
  61. Z. Liu, E. Sanlaville, “Preemptive Scheduling with Variable Profile, Precedence Constraints and Due Dates”, Discrete Applied Mathematics, Vol. 58, pp. 253-280, April 1995.
  62. Y. Dallery, Z. Liu, D. Towsley, “Equivalence, Reversibility, Symmetry and Concavity Properties in Fork-Join Networks with Blocking”, Journal of the ACM, Vol. 41, No. 5, pp. 903--942, 1994.
  63. Z. Liu, D. Towsley, “Burst Reduction Properties of Rate-Based Flow Control Schemes: Downstream Queue Behavior, IEEE/ACM Trans. on Networking, Vol. 3, No. 1, pp. 82--90, 1995.
  64. Z. Liu, D. Towsley, “Optimality of the Round Robin Routing Policy”, Journal of the Applied Probability, Vol. 31, pp. 466-475, 1994.
  65. Z. Liu, D. Towsley, “Burst Reduction Properties of Rate-Based Flow Control Schemes: Departure Process”, Annals of Operations Research, Special Issue on Methodologies for Performance Analysis of High Speed Networks, Vol. 49, pp. 51-78, 1994.
  66. Z. Liu, D. Towsley, “Effects of Service Disciplines in G/G/s Queueing Systems”, Annals of Operations Research, Vol. 48, pp. 401-429, 1994.
  67. Z. Liu, D. Towsley, “Stochastic Scheduling in In-Forest Networks”, Advances in Applied Probability, Vol. 26, pp. 222-241, 1994.
  68. F. Baccelli, Z. Liu, D. Towsley, “Extremal Scheduling of Parallel Processing Systems with and without Real-Time Constraints”, Journal of the ACM, Vol. 40, pp. 1209-1237, 1993.
  69. F. Baccelli, Z. Liu, “Comparison Properties of Stochastic Decision Free Petri Nets”, IEEE Trans. on Automatic Control, Vol. 37, pp. 1905-1920, 1992.
  70. A. Jean-Marie, Z. Liu, “Stochastic Comparisons for Queueing Models via Random Sums and Intervals”, Advances in Applied Probability, Vol. 24, pp. 960-985, 1992.
  71. Z. Liu, P. Nain, D. Towsley, “On Optimal Polling Policies”, Queueing Systems, Vol. 11, pp. 59- 83, 1992.
  72. E. Altman, P. Konstantopoulos, Z. Liu, “Stability, Monotonicity and Invariant Quantities in General Polling Systems”, Queueing Systems, Vol. 11, pp. 35-57, 1992.
  73. Z. Liu, F. Baccelli, “Generalized Precedence-Based Queueing Networks”, Mathematics of Operations Research, Vol. 17, pp. 615--639, 1992.
  74. F. Baccelli, Z. Liu, “On a Class of Stochastic Recursive Sequences Arising in Queueing Theory”, The Annals of Probability, Vol. 20, No. 1, pp. 350--374, 1992.
  75. Z. Liu, P. Nain, “Optimal Scheduling in Some Multi-Queue Single-Server Systems”, IEEE Transactions on Automatic Control, Vol. 37, No. 2, pp. 247--252, 1992.
  76. E. G. Coffman, Z. Liu, “On the Optimal Stochastic Scheduling of Out-Forests”, Operations Research, Vol. 40, Supp. No. 1, pp. S67--S75, Jan. 1992.
  77. Z. Liu, P. Nain, “Sensitivity Results in Open, Closed, and Mixed Product-Form Queueing Networks”, Performance Evaluation, Vol. 13, pp. 237--251, 1991.
  78. Z. Liu, “A Note on Graham's Bound”, Information Processing Letters, Vol. 36, pp. 1-5, 1990.
  79. F. Baccelli, Z. Liu, “On the Executions of Parallel Programs on Multiprocessor Systems --- A Queueing Theory Approach”, Journal of the ACM, Vol. 37, No. 2, April 1990, pp. 373-414.
  80. F. Baccelli, Z. Liu, “On the Stability Condition of a Precedence-Based Queueing Discipline”, Advances in Applied Probability, Vol. 21, pp. 883-898, 1989.

    Papers in proceedings of international conferences (peer reviewed)
  81. Y. Lei, Z. Liu, D. Towsley, C.H. Xia, “Distributed Operator Placement and Data Caching for In-Network Stream Query Processing”. IEEE Infocom 2008.
  82. M. Kim, Z. Liu, S. Parthasarathy, D. Pendarakis, H. Yang, "Association Control in Mobile Wireless Networks", Proc. IEEE International Conference on Computer Communications (Infocom), Phoenix, Arizona, April 2008.
  83. M. Branson, F. Douglis, B. Fawcett, Z. Liu, A. Riabov, F. Ye, "CLASP: Collaborating, Autonomous Stream Processing Systems," 8th International Middleware Conference, November 2007.
  84. H. Yang, F. Ye, Z. Liu, "Resource Discovery in Federated Systems with Voluntary Sharing ", Proc. ACM/IFIP/USENIX International Middleware Conference (Middleware), Work-In-Progress Track, Newport Beach, California, November 2007.
  85. H. Feng, Z. Liu, C.H. Xia, L. Zhang, “Load Shedding and Distributed Resource Control of Stream Processing Networks”, IFIP Performance Conference, 2007.
  86. Z. Liu, A. Ranganathan and A. Riabov. "A Knowledge Engineering and Planning Framework based on OWL Ontologies". In ICKEPS 2007 (International Competition on Knowledge Engineering for Planning and Scheduling), Providence, RI, Sept 22, 2007.
  87. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, F. Ye, S. Shao. and D. Schlosnagle. "Data Stream Processing Infrastructure for Intelligent Transport Systems". In Vehicular Technologies Conference (VTC 2007- Fall), Baltimore, MD, 30 Sept - 3 Oct, 2007.
  88. 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.
  89. W. Chen, Z. Liu, A. Riabov, “A Soft Constraint Privacy Model based on Identifiability”, The Second IEEE International Workshop on Security, Trust, and Privacy for Software Applications (STPSA 2007), July 2007.
  90. C.H. Xia, Z. Liu, D. Towsley, M. Lelarge, “Scalability of Fork/Join Queueing Networks with Blocking”. ACM SIGMETRICS 2007.
  91. 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.
  92. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, and F. Ye. "A Semantics-based Middleware for Utilizing Heterogeneous Sensor Networks". In IEEE DCOSS '07 (Distributed Computing in Sensor Systems), Santa Fe, New Mexico, June 18-20, 2007.
  93. Z. Liu, A. Ranganathan, A. Riabov. "Use of OWL for describing Stream Processing Components to enable Automatic Composition". In OWLED '07 (Workshop on OWL Experiences and Directions), Innsbruck, Austria, June 6-7, 2007.
  94. E. Bouillet, M. Feblowitz, Z. Liu, A. Ranganathan, A. Riabov, F. Ye, S. Shao., D. Schlosnagle. "Stream Processing Based Intelligent Transport Systems". In ITST '07 (Intelligent Transportation Systems Telecommunications), Sophia-Antipolis, France, June 7-9, 2007.
  95. Z. Liu, A. Ranganathan, A. Riabov. "Specifying and Enforcing High-Level Semantic Obligation Policies". In IEEE Policy '07, Bologna, Italy, June 13-15, 2007
  96. Z. Liu, S. Parthasarthy, A. Ranganathan, H. Yang. "Scalable Event Matching for Overlapping Subscriptions in Pub/Sub Systems". In DEBS '07 (Distributed Event Based Systems), Toronto, Ontario, Canada, June 20-22, 2007.
  97. M. Branson, F. Douglis, B. Fawcett, Z. Liu, A. Riabov and F. Ye, "Autonomic Operations in Cooperative Stream Processing Systems", Second Workshop on Hot Topics in Autonomic Computing (HotAC II, 2007), April 2007.
  98. F. Ye, H. Yang, Z. Liu, "Catching Moles in Sensor Networks", Proc. IEEE International Conference on Distributed Computing Systems (ICDCS), Toronto, Canada, June 2007.
  99. J. Liu, Z. Liu, D. Towsley, C. Xia, “Maximize the Data Utility of a Data Archiving & Querying System through Joint Coding and Scheduling”, International Conference on Information Processing in Sensor Networks (IPSN), April 2007. Cambridge, MA.
  100. A. Sobeih, M. Hack, Z. Liu, L. Zhang, “Almost Peer-to-Peer Clock Synchronization”, 21st IEEE International Parallel & Distributed Processing Symposium (IPDPS 2007), Long Beach, CA, March 2007.
  101. B. Rong, F. Douglis, Z. Liu, C. Xia, “Failure Recovery in Cooperative Data Stream Analysis”, Second International Conference on Availability, Reliability and Security (ARES 2007), Vienna, April 2007.
  102. D. Pendarakis, N. Shrivastava, Z. Liu, "Information Aggregation and Optimized Actuation in Sensor Networks: Enabling Smart Electrical Grids", IEEE INFOCOM Minisymposium 2007.
  103. 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.
  104. A. Ranganathan and Z. Liu, "Information Retrieval from Relational Databases using Semantic Queries", CIKM 2006 Poster, Nov 6-11, Arlington, VA.
  105. Z. Liu, D. Pendarakis, F. Ye, “A Shared Infrastructure for Cooperative Sensing Applications”, the Fourth International Conference on Cooperative Internet Computing, October, 2006, HongKong, China.
  106. K. Tang, Z. Liu, C. Xia, L. Zhang., “Distributed Resource Allocation for Stream Data Processing”. International Conference on High Performance Computing and Communications (HPCC), September 2006.
  107. J. Broberg, Z. Liu, C. Xia, and L. Zhang. “Distributed Resource Allocation in Stream Processing Systems”. 20th International Symposium on Distributed Computing (DISC), September 2006.
  108. A. Riabov, Z. Liu, “Scalable Planning for Distributed Stream Processing Systems”, ICAPS, June 2006.
  109. 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.
  110. M. Lelarge, Z. Liu, A. Riabov, "Automatic Composition of Secure Workflows", The 3rd International Conference on Autonomic and Trusted Computing, ATC 2006. Wuhan, China, June 2006.
  111. J. Broberg, Z. Liu, C. Xia, and L. Zhang. “A Multicommodity Flow Model for Distributed Stream Processing”. SIGMETRICS poster, June 2006.
  112. 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.
  113. T. Chang, J. Fan, M. Ahamad, G. Popescu, Z. Liu, "Preference-Aware Overlay Topologies for Group Communication", Globecom 2005.
  114. P. Dube, Z. Liu, S. Sahu, J. Silber, "Last Mile Problem in Overlay Design", IEEE Globecom, Nov. 2005, St. Louis, USA.
  115. P. Dube, Z. Liu, S. Sahu, J. Silber, "On Designing Application Specific Overlays", 19th International Teletraffic Congress (ITC-19), Aug./Sep. 2005, Beijing, China.
  116. A. Riabov, Z. Liu, Planning for Stream Processing Systems , AAAI-2005, July 2005
  117. G. Grabarnik, Z. Liu and A. Riabov, "Stream Processing Planning", ICAPS-2005 short paper, June 2005.
  118. A. Kashyap, C.H. Xia, Z. Liu, P. Dube. “Scaling Laws of Sampling and Capacity of Sensors on Closed Surfaces”. ICWN 2005 – The International Conference on Wireless Networks. June 2005, Las Vegas, USA.
  119. F. Baccelli, A. Chaintreau, Z. Liu, A. Riabov, “The One-to-Many TCP Overlay: A Scalable and Reliable Multicast Architecture”, INFOCOM 2005.
  120. B. Liu, Z. Liu, P. Nain, D. Towsley, “Properties of Random Direction Models”, INFOCOM 2005.
  121. 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.
  122. J. Silber, S. Sahu, J. Singh, Z. Liu. “Augmenting Overlay Trees for Failure Resiliency”, Proceedings of GLOBECOM 2004.
  123. F. Baccelli, A. Chaintreau, Z. Liu, “An analysis of overlay multicast communication via first passage percolation”, 16th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2004).
  124. G. Popescu, Z. Liu, “Stateless application-level multicast for dynamic group comunication”, Proceedings of Distributed Systems and Real-Time Conference (DS-RT), October 2004, Budapest, Hungary.
  125. B. Xi, Z. Liu, M. Raghavachari, C. Xia, L. Zhang, “A Smart Hill-Climbing Algorithm for Application Server Configuration”, World Wide Web Conference 2004.
  126. Z. Liu, V. Misra, L. Wynter, “Dynamic Offloading in a Multi-Provider Environment: A Behavioral Framework for Use in Influencing Peering” Proceedings of CC Grid- Global and Peer-to-Peer Computing, Chicago, April 2004.
  127. M. Lelarge, Z. Liu, C. Xia, “Asymptotic Tail Distribution of End-to-End Delay in Networks of Queues with Self-Similar Cross Traffic”, INFOCOM 2004.
  128. A. Shankar, Z. Liu, “Maximum Lifetime Routing in Wireless Ad-hoc Networks”, INFOCOM 2004.
  129. F. Baccelli, A. Chaintreau, Z. Liu, A. Riabov, S. Sahu, “Scalability of Reliable Group Communication Using Overlays”, INFOCOM 2004.
  130. A. Riabov, Z. Liu, L. Zhang, “Overlay Multicast Trees of Minimal Delay”, ICDCS 2004.
  131. P. Dube, Z. Liu, L. Wynter, C. H. Xia, “Outsourcing and Price-QoS Equilibrium for e-Commerce and Internet Firms: IT on-Demand”, 24th IEEE Conference on Decision and Control Conference, December 2003, Maui, HI, USA.
  132. J. Chang, H. Ayhan, J. Dai, Z. Liu, M. S. Squillante, C. H. Xia, “Optimal Dynamic Scheduling in a Multiclass Fluid Model of Internet Servers with Transient Overload”, 24th IEEE Conference on Decision and Control Conference, December 2003, Maui, HI, USA.
  133. C. H. Xia, Z. Liu, M. S. Squillante, L. Zhang, N. Malouch. Traffic Modeling and Performance Analysis of Commercial Web Sites. Proceedings of the 18th International Teletraffic Congress, Berlin, Germany 2003.
  134. Z. Liu, M.S. Squillante, C.H. Xia, S.-Z. Yu, L. Zhang, Traffic Profiling, Clustering and Classificiation in Commercial Web Sites. Proceedings of the 18th International Teletraffic Congress, Berlin, Germany 2003.
  135. Z. Liu, N. Malouch, V. Misra, D. Rubenstein, S. Sahu, Bandwidth-Sharing Schemes for Multiple Multi-Party Sessions, Proceedings of the 18th International Teletraffic Congress, Berlin, Germany 2003
  136. L. Zhang, Z. Liu, A. Riabov, M. Schulman, C. H. Xia, F. Zhang, “A Comprehensive Toolset for Workload Characterization, Performance Modeling and Online Control”, Performance TOOLS conference, September 2003, Urbana and Monticello, Illinois, USA.
  137. Z. Liu, C. H. Xia, “Queueing Systems with Long-Range Dependent Input Process and Subexponential Service Times”, Sigmetrics 2003, June 2003, San Diego.
  138. Z. Liu, L. Wynter, C. H. Xia, “Pricing Information Services in a Competitive Market: Avoiding Price Wars”. ACM Conference on Electronic Commerce (EC’03), June 2003, San Diego.
  139. Z. Liu, L. Wynter, C. H. Xia, Usage-based versus Flat Pricing for e-business Services with Differentiated QoS, Proceedings of IEEE Conference on Electronic Commerce (CEC) 2003.
  140. A. Riabov, Z. Liu, J. L. Wolf, P. S. Yu, L. Zhang, “New Algorithms for Content-Based Publication-Subscription Systems”. ICDCS 2003 - The 23rd International Conference on Distributed Computing Systems, May 2003, Providence, Rhode Island.
  141. N. Bansal, Z. Liu, “Capacity, Delay and Mobility in Wireless Ad-Hoc Networks”, INFOCOM 2003, April 2003, San Francisco.
  142. B. Liu, Z. Liu, D. Towsley, “On the Capacity of Hybrid Wireless Networks”, to appear in INFOCOM 2003, April 2003, San Francisco.
  143. Z. Liu, M. S. Squillante, J. L. Wolf, “Optimal Control of Resource Allocation in e-Business Environments with Strict Quality-of-Service Performance Guarantees”. Las Vegas, CDC December 2002.
  144. Z. Liu, M. S. Squillante, C. H. Xia, L. Zhang, N. Malouch. “Analysis of Caching Mechanisms from Sporting Event Web Sites”. Proc. of ASIAN Computing Science Conference, Hanoi, Vietnam, Dec. 2002.
  145. Z. Liu, N. Malouch, “Performance Analysis of TCP with RIO Routers”. Proceedings of IEEE Globecom 2002, Taipei, Taiwan, Nov. 2002.
  146. Z. Liu, M.S. Squillante, C.H. Xia, S.-Z. Yu, L. Zhang, N.M. Malouch, P.M. Dantzig. “Analysis of Measurement Data from Sporting Event Web Sites”, Proceedings of IEEE Globecom 2002, Taipei, Taiwan, Nov. 2002.
  147. S.-Z. Yu, Z. Liu, M. S. Squillante, C. H. Xia, L. Zhang. “Web Traffic Profiling, Clustering and Classification”, In ICTSM10 - The Tenth International Conference on Telecommunication Systems, Modeling and Analysis, Monterey, California, Oct. 2002.
  148. G. Popescu, Z. Liu, “On Scheduling 3D model transmission in networked virtual environments”, IEEE DSRT 2002 - Sixth IEEE International Workshop on Distributed Simulation and Real Time Applications, Fort Worth, Texas, October 2002, pp 127-134.
  149. N. Bansal, Z. Liu, A. Sankar, “Bin Packing with Fragile Objects”, 2nd IFIP International Conference on Theoretical Computer Science, August 2002, Montreal, Canada.
  150. A. Riska, M. S. Squillante, S.-Z. Yu, Z. Liu, L. Zhang. “Matrix-Analytic Analysis of a MAP/PH/1 Queue Fitted to Web Server Data”, International Conference on Matrix Analytic Methods in Stochastic Models , July 2002, Adelaide, Australia.
  151. A. Riabov, Z. Liu, J. L. Wolf, P. S. Yu, L. Zhang, “Clustering Algorithms for Content-Based Publication-Subscription Systems”. ICDCS 2002 - The 22nd International Conference on Distributed Computing Systems, July 2002, Vienna, Austria.
  152. C. S. Chang, Z. Liu, “A Bandwidth Sharing Theory for a Large Number of HTTP-like Connections”. Proceedings of the IEEE INFOCOM Conference, New York, NY, June 2002.
  153. L. Zhang, Z. Liu, H. Xia, “Clock Synchronization Algorithms for Network Measurements”. Proceedings of the IEEE INFOCOM Conference, New York, NY, June 2002, pp. 160-169.
  154. Z. Liu, N. Malouch, D. Rubenstein, S. Sahu, “Delay-bounded End-system Multicast with Proxy Support”. IWQoS 2002 - Tenth International Workshop on Quality of Services, Miami Beach, Florida, May 2002.
  155. S.-Z. Yu, Z. Liu, M.S. Squillante, C.H. Xia, L. Zhang. “A Hidden Semi-Markov Model for Web Workload Self-Similarity”, Proceedings of IPCCC 2002 - The 21st IEEE International Performance, Computing, and Communications Conference, Phoenix, Arizona, April 2002.
  156. C. Jalpa-Villanueva, Z. Liu, N. Niclausse, S. Barbier, “Web traffic characterization using mixture of parsimonious distributions”. Communication Networks and Distributed Systems Modeling and Simulation Conference, Texas, Jan. 2002.
  157. Z. Liu, M. S. Squillante, J. L. Wolf. “On Maximizing Service-Level-Agreement Profits”. ACM E-Commerce Conference, Tampa, FL. October 2001.
  158. N. Malouch, Z. Liu, “On Steady State Analysis of TCP in Networks with Differentiated Services”, Proceedings of the International Teletraffic Conference, Salvador da Bahia, Brazil, December 3--7, 2001.
  159. J. Talim, Z. Liu, P. Nain, E. G. Coffman, Jr., “Controlling Robots in Web Search Engines”, Proceedings of the Sigmetrics'2001, Boston, MA, June 2001.
  160. F. Baccelli, D. Hong, Z. Liu, “Fixed Point Methods for the Simulation of the Sharing of a Local Loop by a Large Number of Interacting TCP Connections”, Proceedings of the ITC Specialist Conference on Local Loop, Barcelona, Spain, April 2001.
  161. Z. Liu, N. Niclausse and C. Jalpa-Villanueva, “WAGON: A Web Server Benchmarking tool”, Poster Proceedings of the 8th World Wide Web Conference, Toronto, Canada, May 1999.
  162. J. Talim, Z. Liu, P. Nain, E. G. Coffman, Jr., “Optimizing the Number of Robots for Web Search Engines, Proceedings of 7th International Conference on Telecommunication Systems, pp. 276--288, Nashville (TN), USA, March 1999.
  163. N. Niclausse, Z. Liu, P. Nain, “A New Efficient Caching Policy for the World Wide Web”, Proc. WISP, pp.119-128, Madison, Wisconsin, June 1998.
  164. Z. Liu, R. Righter, “Optimal Parallel Processing of Random Task Graphs”, Proc. 6-th International Workshop on Project Management and Scheduling, July 7-9, 1998, Istanbul, Turkey.
  165. Z. Liu, P. Nain, N. Niclausse, D. Towsley, “Static Caching of Web Servers”, Proc. Multimedia Computing and Networking, San Jose, California, USA, January 1998.
  166. Z. Liu, P. Nain, D. Towsley, “Bounds on Finite Horizon QoS Metrics with Application to Call Admission”, Proc. INFOCOM 96, San Francisco, USA, April 1996.
  167. G. Koole, Z. Liu, “Nonconservative Service for Minimizing Cell Loss in ATM Networks”, Proc. of First Workshop on ATM Traffic Management, IFIP, WG.6.2, Paris, Dec. 1995.
  168. Z. Liu, P. Nain, D. Towsley, “Bounds on the Tail Distributions of Markov-Modulated Stochastic Max-Plus Systems”, Proc. CDC, New Orleans, USA, Dec. 1995.
  169. G. Koole, Z. Liu, “On the Control of Tandems of Queues with Finite Buffers”, Proc. of Allerton Conference, Allerton, USA, Oct. 1995.
  170. Z. Liu, “Performance Bounds for Stochastic Timed Petri Nets”, In Proc. of 16-th Internation Conference on Applications and Theory of Petri Nets, Torino (Italy) 1995. Lecture Notes in Computer Science, Vol. 935, G. De Michelis and M. Diaz (Eds.), pp. 316--334, 1995.
  171. Z. Liu, “Scheduling of Random Task Graphs on Parallel Processors”, Proc. of Modeling, Analysis, and Simulation of Computer and Telecommunication Systems, January 1995, Durham (North Carolina), USA. Eds: P. Dowd and E. Gelenbe, IEEE Computer Society Press.
  172. Z. Liu, P. Nain, D. Towsley, “Exponential Bounds for a Class of Stochastic Processes with Application to Call Admission Control in Networks”, Proc. CDC, 1994.
  173. L. Finta, Z. Liu, “Stochastic Scheduling of Precedence Graphs”, Proc. 11-th International Conf. on Analysis and Optimization of Systems, Sophia-Antipolis, June 1994.
  174. C. Coroyer, Z. Liu, “Effectiveness of Heuristics and Simulated Annealing for the Scheduling of Concurrent Tasks --- An Empirical Comparison”, Proc. 5-th International Conference on Parallel Architectures and Languages Europe, A. Bode, M. Reeve, G. Wolf (Eds.), Munich, Germany, June 1993, Springer, pp. 452-463.
  175. E. Altman, Z. Liu, “Improving the Stability Characteristics of Asynchronous Traffic in FDDI Token Ring”, Proc. of the Fifth International Conference on Data Communication Systems and Their Performance, Raleigh, October 1993. H. G. Perros, Y. Viniotis (Eds.), North Holand, pp. 441-460.
  176. Z. Liu, D. Towsley, “Burst Reduction Properties of the Token Bank in ATM Networks”, Proc. IFIP Workshop on Modeling and Performance Evaluation of ATM Technology, La Martinique, French Carribean Island, Jan. 1993.
  177. Z. Liu, E. Sanlaville, “Stochastically Minimizing the Makespan of Structured Jobs”, Proc. of the Summer School on Scheduling Theory and Its Applications, Bonas (Gers), France, Sept. 1992, pp. 166-184.
  178. Z. Liu, E. Sanlaville, “Scheduling in Multiprocessor Systems with Random Execution Time, Precedence Constraints and Variable Profile”, Proc. of Symposium of Applied Mathematics of Academia Sinica, Beijing, P. R. China, July 1992.
  179. Z. Liu, P. Nain, “Optimal Scheduling in Some Multi-Queue Single-Server Systems”, Proc. of INFOCOM 90, California, U.S.A., June 1990.
  180. Z. Liu, P. Mussi, “Deadlock Free Routing on a Ring---A Performance Evaluation”, Pittsburgh Conference on Simulation and Modelling, May 1990.
  181. Z. Liu, “Optimal Routing in the De Bruijn Networks”, Proc. Tenth International Conference on Distributed Computing Systems, May 1990, Paris, France, pp. 537-544.
  182. F. Baccelli, Z. Liu, D. Towsley, “Optimal Scheduling of Parallel Processing Systems with and without Real-Time Constraints, Proc. of the 27th International Allerton Conference, Illinois, U. S.A., September 1989.
  183. F. Baccelli, Z. Liu, “Maximum Throughput of Parallel Executions”, Proc. Fourth International Symposium on Computer and Information Sciences, pp. 267-276, Cesme, Turkey, October 1989.
  184. F. Baccelli, Z. Liu, “On the Stability Condition of a Precedence-Based Queueing Discipline”, Proc. of the 26th International Allerton Conference, Illinois, U.S.A., September 1988.
  185. E. Gelenbe, Z. Liu, “Performance Analysis Approximations for Parallel Processing in Multiprocessor Systems”, North-Holland, Eds. Cosnard et al., Proc. of IFIP Working Conference on Parallel Processing, pp.363-375, Pise, Italy, April, 1988.
  186. Z. Liu, J. Labetoulle, “A Heuristic Method for Loading and Scheduling Flexible Manufacturing Systems”, Proc. of Control 88, London, UK, IEE Conference Publication No.285, pp.195-200, 1988.


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