OtisB.Jennings The Fuqua School of Business Duke University Durham, NC 27708 Tel: 919.660.8012 Fax: 919.681.6245 Email: otisj@duke.edu Academicpositions Duke University, Fuqua School of Business Associate Professor, 2007-present Assistant Professor, 2003-2007 Primary research interests Applications: Analyzing large-scale service systems; highly utilized multi-product processing networks with and without switch-over delays; and health care facility operations and public policy. Analysis: Applied probability and queueing theory. Massachusetts Institute of Technology, Sloan School of Management Visiting Scholar / Instructor, 2001-2003 Stanford University, Graduate School of Business Postdoctoral Fellow, 2000-2001 Education Georgia Institute of Technology Ph.D. in Industrial & Systems Engineering, 2000 Advisor: Jim Dai Dissertation title: Multiclass Queueing Networks with Setup Delays: Stability Analysis and Diffusion Approximation Masters in Industrial & Systems Engineering, 1999 Princeton University B.S.E. in Civil Engineering/Operations Research, 1994 Magna cum laude
Publicationsandresearch Jennings, O. B., A. Mandelbaum, W. A. Massey and W. Whitt, "Server Staffing to Meet Time-Varying Demand," Management Science, 42, 1381 1394, 1996. Jennings, O. B. and W. A. Massey, "A Modified Offered Load Approximation for Nonstationary Circuit Switched Networks, " Select Proceedings of the Third INFORMS Telecommunications Conference (Telecommunication Systems, editors R. B. Cooper and R. Doverspike), 7, pp. 253-265, 1997. Jennings, O. B., W. A. Massey and C. McCalla, "Optimal Profit for Leased Lines Services, " with Proceedings of the 15th International Teletraffic Congress - ITC 15 (editors V. Ramaswami and P. E. Wirth), pp. 803-814, June 1997. Dai, J. G. and O. B. Jennings, "Stability of General Processing Networks," In Stochastic Models and Optimization, D. D. Yao, H. Zhang and X. Y. Zhou, editors, pp. 193--243, Springer, New York, 2003. Dai, J. G. and O. B. Jennings, "Stabilizing Queueing Networks with Setups," Mathematics of Operations Research, Vol. 29, pp. 891-922, November 2004. de Véricourt, F. and O. B. Jennings, "Dimensioning Large-Scale Membership Services," Operations Research, Vol. 56, pp. 173-187, Jan 2008. Jennings, O. B., "Heavy-Traffic Limit Theorems for Queueing Networks with Polling Stations: Brownian Motion in a Wedge," Mathematics of Operations Research, Vol. 33, pp. 12-35, Feb 2008. Hampshire, R. C., O. B. Jennings and W. A. Massey, "A Modified Fluid Delay Model for the Optimal Design of a Dynamic Call Center, Probability in the Engineering and Informational Science, Vol. 23, pp. 231-259, Apr 2009. Jennings, O. B., Averaging Principles for a Diffusion Scaled Heavy Traffic Polling Station with K Job Classes, Mathematics of Operations Research, Vol. 35, pp. 669-702, Aug 2010. Jennings, O. B. and J. E. Reed, "An Overloaded Multiclass FIFO Queue with Abandonments," To appear in Operations Research. Workingpapers de Véricourt, F. and O. B. Jennings, "Nurse-to-Patient Ratios in Hospital Staffing: A Queueing Perspective," Under review for Operations Research. Degirmenci, I. and O. B. Jennings, "Fleet Management Repair and Maintenance: Approximations of Delay-based Metrics.
Degirmenci, I. and O. B. Jennings, "Approximating the G/G/1+D Queue. Jennings, O. B. and A. Watkins, Averaging Principles for a Diffusion Scaled, Heavy Traffic Queueing Network with a Polling Station. Jennings, O. B. and J. Pender, On-line Distributional Approximations of Left- Without-Being-Seen (LWBS) Counts and Balking Rates Degirmenci, I. and O. B. Jennings, "Approximations and Optimal Design of a Maketo-stock Queue with Perishable Inventory and Impatient Backlogged Customers. Jennings, O. B., Three Exhaustive Service Polling Stations in Series: Simulated Evidence of Unavoidable Intermittent Downstream Idling. Teaching Duke University, Fuqua School of Business BA 591.03 Stochastic Processing Networks, Fall 2004 BA 591.04 Asymptotic Analysis of Service Systems, Fall 2006 BA 591.07 Introduction to Stochastic Processes, Fall 2008, 2010 OPS 370 Operations Management, 2003-2007 (core MBA course) OPS 372 Service Operations Management, Spring I 2008, Fall I 2008-10 OPS 491W Healthcare Operations, 2007 HLTHMGMT 491 Healthcare Operations, Spring II 2008, Fall II 2008-10 GATE 496.301 Southeast Asia, 2007 GATE 496.401 Southern Africa, 2005-2007 EGRMGMT 262 Operations Management (MEM) Spring 2010, Fall 2010 Massachusetts Institute of Technology, School of Management 15.760 Operations, (core MBA operations management course) 2002-2003 Georgia Institute of Technology, School of Industrial & Systems Engineering ISyE 3027 Applications in Probability, (undergraduate intro probability) 1998
Presentations Diffusion Limits and Averaging Principles for Polling Stations in Tandem Stochastic Networks Conference, Cambridge, U.K., Spring 2010 Heavy Traffic Averaging Principles for Polling Stations with K Job Classes INFORMS Applied Probability Society, Cornell, Summer 2009 Princeton University, Spring 2009 Expert Users and the Case for Endogenous Abandonment Distributions INFORMS, Washington D.C., Fall 2008 Fluid and Diffusion Limits of a Multiclass Overloaded Abandonment Queue Under Priority Scheduling Eurandom, Summer 2007 Fill Rate Compliance and the Many-Machine Repairman Problem Eurandom, Summer 2007 Joint Bed Capacity Planning and Nurse Staffing in Medical Units INFORMS, Seattle, Fall 2007 Eurandom, Summer 2007 Large-Scale Membership Services with Applications for Patient-Nurse Ratios. University of Minnesota, Fall 2005 (invited talk); Johns Hopkins, Spring 2007 (invited talk); Princeton University, Spring 2007 (invited talk). Diffusion Limit of Overloaded Multiclass FIFO Queues with General Abandonments, INFORMS, Pittsburgh, Fall 2006; INFORMS Applied Probability Society, Eindhoven, Summer 2007. A Diffusion Approximation for a Many Server Queue with a Finite Population. INFORMS, San Francisco, Fall 2005. A Heavy Traffic Limit Theorem for Tandem, Gated-Service Polling Stations. INFORMS Applied Probability Society, Ottawa, Summer 2005. Process Analysis of Tandem Polling Stations. INFORMS Applied Probability Society Conference, Beijing, June 2004. A Heavy Traffic Limit Theorem for Tandem Polling Stations. INFORMS, Atlanta, Fall 2003. Stabilizing Kelly Networks with Setup Delays. INFORMS, San Jose, CA, Fall 2002.
Stabilizing Queueing Networks with Setups, Cornell 2001 (invited talk). INFORMS, San Antonio, Fall 2000. Multiclass Queueing Networks with Setup Delays: Stability Analysis and Diffusion Approximation INFORMS Applied Probability Society Conference, Ulm, Germany, July 1999. On the Stability of the Kumar-Seidman Policy in Multiclass Queueing Networks with Setups. INFORMS, Dallas, Fall 1997. Optimal Profit for Leased Lines Services. INFORMS, Dallas, Fall 1997. A Modified Offered Load Approximation for Nonstationary Circuit Switched Networks. INFORMS Telecommunications Conference, 1995. Funding/patentsapplicationsandawards NSF SBIR Phase II and IIb grant with SAK Logistics, 2002 Intel Graduate Fellowship, 1997-1998 Georgia Tech President's Fellowship, 1995-1999 Bell Labs Cooperative Research Fellowship, 1995-1999 NSF Graduate Fellowship, 1995-1998 Academic All-Ivy (1993) and All-Ivy (1993,1994) for track and field Societiesandprofessionalservice Duke University Academic council member, 2009-present Athletic Council subcommittee, 2010-present Operations Management Ph.D. Committee (admissions, qualifiers, curriculum), 2005-present Seminar series co-coordinator, 2004-2005, 2008-present Ad hoc journal referee Manufacturing and Services Operations Management, IIE Transactions, Operations Research, European Journal of Operations Research, Naval Research Logistics, Management Science, Mathematics of Operations Research, Queueing Systems
INFORMS membership affiliations and service Minority Issues Forum Secretary, 2002-2006 President, 2006-2008 Applied Probability Society Council member, 2006-2008 Conference cluster chair for the national conference, Seattle 2007 Other Queueing Models cluster chair for the natl. conference, San Diego 2009 Ph.D. development Advisor Isilay Talay Degirmenci, Asymptotic Analysis and Performance-based Design of Large Large Service and Inventory Systems Duke University Fuqua School of Business, April 2010 Andrea Watkins, On Absolute Continuity for Stochastic Partial Differential Equations and an Averaging Principle for a Queueing Network Duke University Math Department, Summer 2010 Co-advised with Jonathon Mattingly Committee member Yu-Tong He, McMasters University, Department of Computing and Software Societies Sigma Xi, 1994 Tau Beta Pi, 1993 Otherinterestsandhobbies Yoga, kickboxing, cooking, snowboarding