**Publications**

__Book Chapter__

** Probabilistic
control of nonlinear uncertain systems**

*Q. Wang and R. F. Stengel*

*Probabilistic
and Randomized Methods for Design under Uncertainty, *Springer-Verlag, London, 2006.

** **

__Patents__

**Global data
placement**

*Q. Wang, A. Merchant, N. Mishra, M.
Kallahalla, and R. Swaminathan*,

Granted
*US Patent 7225118, *May 29, 2007.

**Data placement for
fault tolerance **

*M. Karlsson,
Q. Wang, and J. Wilkes.*

Granted
*US Patent 7000141, *Feb. 14,
2006.

__Journal Papers__

**An Extended Lumped-Parameter Model of Melt-Pool Geometry to Predict Part
Height for Directed Energy Deposition**

*J. Li, Q. Wang, P.
Michaleris, E. W. Reutzel, and A. R. Nassar*

*ASME Journal of
Manufacturing Science and Engineering, 139(9), 2017, 091016.*

**Physics-Based Multivariable Modeling and Feedback Linearization Control
of Melt-Pool Geometry and Temperature in Directed Energy Deposition**

*Q. Wang, J. Li, M. Gouge,
A. R. Nassar, P. Michaleris, and E. W. Reutzel*

*ASME Journal of
Manufacturing Science and Engineering, 139(2), 2016, 021013.*

**A Variable State Dimension Approach to Meal Detection and Meal Size
Estimation: in Silico Evaluation through Basal-Bolus Insulin Therapy for Type 1
Diabetes**

*J. Xie and Q. Wang*

*IEEE Transactions on
Biomedical Engineering, 64(6), 2017, pp. 1249-1260. *

**Occupant feedback based model predictive control for thermal comfort and
energy optimization: A chamber experimental evaluation**

*X. Chen, Q. Wang, and J.
Srebric*

*Applied Energy, Vol. 164,
2016, pp. 341-351.*

**Model predictive control for indoor thermal comfort and energy
optimization using occupant feedback**

*X. Chen, Q. Wang, and J.
Srebric*

*Energy and Buildings,
2015,* *pp.
357-369. DOI information: 10.1016/j.enbuild.2015.06.002.*

**Model predictive control for type 1 diabetes based on personalized linear
time-varying subject model consisting of both insulin and meal inputs: an in silico evaluation**

*Q. Wang, J. Xie, P. Molenaar, and J. Ulbrecht*

*Journal of Diabetes
Science and Technology, Vol. 9(4), 2015, 941-942. *

**A data-driven state-space model of indoor thermal sensation using
occupant feedback for low-energy buildings**

*X. Chen, Q. Wang, and J.
Srebric*

*Energy and Buildings,
2015, pp. 187-198. DOI information: 10.1016/j.enbuild.2015.01.038.*

**A probabilistic ellipsoid algorithm for linear optimization problems
with uncertain LMI constraints**

*A. **Ataei and Q. Wang*

*Automatica**, Vol. 52, 2015, pp.
248-254. *

**Adaptive control design for a supercavitating
vehicle model based on fin force parameter estimation**

*X. Mao and Q. Wang*

*Journal of Vibration and
Control, Vol. 21, No. 6, 2015, pp. 1220-1233.2013**DOI:10.1177/1077546313496263.*

**Personalized state-space modeling of glucose dynamics for type 1
diabetes using continuously monitored glucose, insulin dose and meal intake: an
extended Kalman filter approach**

*Wang, Q., Molenaar, P., Harsh, S., Freeman, K., Xie, J., Gold, C., Rovine, M., and Ulbrecht, J.*

*Journal of Diabetes
Science and Technology, Vol. 8, No. 2, 2014, pp. 331-345.*

**Nonlinear control of an uncertain hypersonic aircraft model using robust
sum-of-squares method**

*A. **Ataei and Q. Wang*

*IET Control Theory &
Applications, *Vol. 6, No. 2, 2012, pp. 203-215.

**Delay-dependent control design for a time-delay supercavitating
vehicle** **model**

*X. Mao
and Q. Wang*

*Journal
of Vibration and Control*,
Vol.17, No. 3, 2011, pp. 431- 448.

**Convergence speed in distributed consensus over dynamically switching
random networks**

*J.
Zhou and Q. Wang*

*Automatica*, Vol. 45, No. 6, 2009, pp. 1455- 1461.

**Research Challenges in Control Engineering of Computing Systems**

*J. L. Hellerstein, S. Singhal, and Q.* Wang

*IEEE
Transactions on Network Service Management*, Vol. 6, No. 4, 2009, pp. 1-6.

**Nonlinear control design for a supercavitating
vehicle**

*X. Mao
and Q. Wang*

*IEEE
Transactions on Control Systems Technology*, Vol. 17, No. 4, 2009, pp. 816-832.

**An**** \alpha-stable model based
linear-parameter-varying control for managing server performance under
self-similar workloads**

*W.
Qin, Q., Wang and A. Sivasubramaniam*

*IEEE
Transactions on Control Systems Technology*, Vol. 17, No.1, 2009, pp. 123- 134.

**On convex parameterization of robust control design for minimizing
(conditional) performance at risk**

*Q.
Wang*

*International
Journal of Nonlinear and Robust Control, *Vol. 18, No. 17, 2008, pp. 1575-1591.

**A CFD-based tool for studying temperature in rack-mounted servers**

*J.
Choi, Y., Kim, A., Sivasubramaniam, J. Srebric, Q. Wang, and J. Lee*

*IEEE
Transactions on Computers*, Vol.
57, No. 8, 2008, pp. 1129-1142.

**An LPV approximation for admission control of an Internet Web server:
Identification and control**

*W. Qin
and Q. Wang*

*Control
Engineering Practice*, Vol.
15, No. 12, 2007, pp. 1457-1467.

**Modeling and control design for performance management of Web servers via
an LPV approach****
**

*W. Qin
and Q. Wang*

*IEEE
Transactions on Control Systems Technology, *Vol. 15, No. 2, 2007, pp. 259-275.

**Robust failure compensation for a morphing aircraft model using a
probabilistic approach**

*A.
**Ataei-Esfanahi
and Q. Wang*

*IEEE Transactions
on Control Systems Technology, *Vol.
15, No. 2, 2007, pp. 324-331.

**Storage performance
virtualization via throughput and latency control**

*J. Zhang, A. Sivasubramaniam, Q.
Wang, A. Riska and E. Riedel*

*ACM Transactions on Storage*,
Vol. 2, No. 3, 2006, pp. 283-308.

**Consolidating
clients on back-end servers with co-location and frequency control**

*Y. Chen, A. Das, Q. Wang, A.
Sivasubramaniam, R. Harper, and M. Bland*

*ACM SIGMETRICS Performance
Evaluation Review, *2006, pp. 383-384.

**Quickly finding
near-optimal storage designs**

*E. Anderson, S. Spence, R. Swaminathan, M. Kallahalla, and
Q. Wang*

*ACM Transactions on Computer
Systems, *Vol. 23, No. 4, 2006, pp. 337-374.

**Managing server energy
and operational costs in hosting centers**

*Y. Chen, A. Das, W. Qin, A.
Sivasubramaniam, Q. Wang, and N. Gautam*

*ACM
SIGMETRICS Performance Evaluation Review,* Vol. 33, No. 1, 2005, pp.
303-314.

**An interposed two
level I/O scheduling framework for performance virtualization**

*J. Zhang, A. Sivasubramaniam, A. Riska, Q. Wang and E. Riedel*

*ACM SIGMETRICS Performance
Evaluation Review, *Vol. 33, No. 1, 2005, pp. 406-407.

**Probabilistic
robust control of rotorcraft**

*J.
Horn, D. Tolani, C. Lagoa, Q. Wang and A. Ray*

*Control
Engineering Practice,* Vol.
12, (8),* *2005, pp. 1037-1046.

**Robust nonlinear
flight control of a high-performance aircraft**

*Q. Wang and R. F. Stengel*

*IEEE
Transactions on Control Systems Technology*, Vol.
13, No. 1, 2005, pp. 15-26.

**Pricing-based
strategies for autonomic control of Web servers for time-varying request
arrivals**

*Y.
Chen, A. Das, N. Gautam, Q. Wang and A.
Sivasubramaniam*

*Journal
of Engineering Application of Artificial Intelligence *(special issue on Autonomic Computing),
Vol. 17, No. 7, 2004, pp. 841-854.

**Robust control of
nonlinear systems with parametric uncertainty **

*Q.
Wang and R. F. Stengel*

*Automatica**,
*Vol. 38, 2002, pp. 1591-1599.

**Searching for
robust minimal-order compensators**

*Q. Wang and R. F. Stengel*

*ASME
Journal of Dynamic Systems, Measurement, and Control, *Vol.
123, No. 2, 2001, pp. 233-236.

**Robust nonlinear
control of a hypersonic aircraft**

*Q.
Wang and R. F. Stengel*

*Journal
of Guidance, Control, and Dynamics, *Vol. 23, No. 4,
2000, pp. 577-585.

__Papers in Conference Proceedings__

**Reduced-order multivariable modeling and nonlinear control of melt-pool
geometry and temperature in directed energy deposition**

*Q. Wang, J. Li, M. Gouge,
A. R. Nassar, P. Michaleris, and E. R. Reutzel*

*Proceedings of American
Control Conference, Boston, MA, July 6-8, 2016, pp. 845-851.*

**Experimental analysis of occupant feedback based model predictive
control for thermal comfort and energy optimization**

*X. Chen, Q. Wang, and J.
Srebric*

*Proceedings of American
Control Conference, Boston, MA, July 6-8, 2016, pp. 1485-1491.*

**Meal detection and meal size estimation for type 1 diabetes treatment: a
variable state dimension approach**

*J. Xie and Q. Wang*

*Proceedings of the ASME
Dynamic Systems and Control Conference, Columbus, Ohio, October, 2015. *

**Recouping energy costs from cloud tenants: tenant demand response aware
pricing design**** **(Best Paper Runner Up)

*C.Wang**, N.
Nasiriani, G. Kesidis, B. Urgaonkar, Q. Wang, L. Y.
Chen, A. Gupta, R. Birke *

* Proceedings of the sixth ACM International
Conference on Future Energy Systems (ACM e-Energy), Bangalore, India, July
14-17, 2015. *

**Model predictive control for type 1 diabetes based on personalized
linear time-varying subject model consisting of both insulin and meal inputs:
an in silico evaluation**

*Q. Wang, J. Xie, P. Molenaar, and J. Ulbrecht*

*Proceedings of American
Control Conference, Chicago, IL. July, 2015. *

**A hierarchical demand response framework for data center power cost
optimization under real-world electricity pricing**

*C.Wang**, B. Urgaonkar, Q. Wang, and G. Kesidis*

*Proceedings
of the 22 ^{nd} International Symposium on Modeling Analysis and
Simulation of Computer and Telecommunication System (Mascots 2014), *Paris, France, September 2014.

** **

**A case for virtualizing the electric utility in cloud data center**

*C.Wang**, B. Urgaonkar, G. Kesidis, U. V. Shanbhag,
and Q. Wang*

*Proceedings
of the 6 ^{th} USENIX Workshop on Hot Topics in
Cloud Computing (HotCloud 2014), *Philadelphia, PA, June 2014.

**A data-driven thermal sensation model based predictive controller for
indoor thermal comfort and energy optimization**

*X. Chen, Q. Wang*

*Proceedings of the 2014
ASME Dynamic Systems and Control Conference, October 2014, *San
Antonio, TX.

**Data-driven state-space modeling of indoor thermal sensation using
occupant feedback **

*X.
Chen, Q. Wang, J. Srebric, and M. O. Fadeyi*

*Proceedings
of the 2014 American Control Conference, *June 2014, Portland, OR, pp. 1710-1715. * *

**Data center power cost optimization via workload modulation**

*C.Wang**, B. Urgaonkar,
Q. Wang, G. Kesidis, and A. Sivasubramaniam*

*Proceedings of the 6 ^{th}
IEEE/ACM International Conference on Utility and Cloud Computing, *December,
2013, Dresden, Germany

**Developing personalized empirical models for type-I diabetes: An
extended Kalman Filter approach**

*Q. Wang, S. Harsh, P. Molenaar, and K. Freeman*

*Proceedings of the 2013
American Control Conference, *Washington
DC, June 2013, pp. 2929-2934.

**Estimating the region of attraction for uncertain polynomial systems using
polynomial chaos functions and sum of squares method**

*A. **Ataei and Q. Wang*

* Proceedings
of the 2012 ASME DSCC Dynamic Systems and Control Conference, *Ft.
Lauderdale, FL, October, 2012

**Development of an adaptive dual controller for glucose management in
patients with insulin-deficient diabetes**

*K. Freeman, Q. Wang, P. Molenaar, J. Zhou, J. Ulbrecht,
C. Gold, and M. Rovine*

*Proceedings of the 2012
ASME DSCC Dynamic Systems and Control Conference, *Ft.
Lauderdale, FL, October, 2012

**An ellipsoid algorithm for linear optimization with uncertain LMI
constraints**

*A. **Ataei and Q. Wang*

*Proceedings of American
Control Conference, *Montreal, QC, Canada,* *June, 2012, pp. 857-862.

**Robust adaptive backstepping control design
for a supercavitating vehicle model**

*X. Mao
and Q. Wang *

*Proceedings
of the 2011 ASME DSCC Dynamic Systems and Control Conference*, Arlington, VA, October, 2011.

**Robust nonlinear control design for a hypersonic aircraft using
Sum-of-Squares method**

*A. **Ataei-Esfahani and Q. Wang*

*Proceedings
of the 2010 ASME DSCC Dynamic Systems and Control Conference*, Cambridge, MA, October, 2010.

**Stochastic semistability with application to
agreement problems over random networks**

*J. Zhou and Q. Wang*

*Proceedings of American
Control Conference,* Baltimore, MD, June, 2010, pp.
568-573.

**Receding horizon control of type I diabetes based on a data-driven
linear time-varying state-space model**

*J. Zhou, Q. Wang, P. Molenaar, J. Ulbrecht, C. Gold,
and M. Rovine*

*Proceedings of American
Control Conference*, Baltimore, MD, June, 2010, pp.
2033-2038.

**Distributed discrete-time nonlinear consensus protocols**

*J. Zhou and Q. Wang*

*Proceedings of IEEE
Conference on Decision and Control, *Shanghai,
China, December, 2009, pp. 4759-4764.

**Finite horizon linear quadratic regulation for linear discrete
time-varying systems with single/multiple input delay(s)**

*J. Zhou and Q. Wang*

*Proceedings of IEEE
Conference on Decision and Control, *Shanghai,
China, December, 2009, pp. 4050-4055.

**Characterizing convergence speed for consensus seeking over dynamically
switching directed random networks **

*
J. Zhou and Q. Wang*

*
Proceedings of American Control Conference*, St. Louis,

**SHARP Control: Controlled
shared cache management in chip multiprocessors**

*S. Srikantaiah, M. Kandemir, and Q. Wang*

*Proceedings
of 42 ^{nd } IEEE/ACM
International Symposium on Microarchitecture*, New York, NY, December, 2009. (Peer Reviewed).

DOI: http://doi.acm.org/10.1145/1669112.1669177

**Robust control of time-delay systems with application to a supercavitating vehicle**

*X. Mao
and Q. Wang*

Proceedings of 2008 ASME Dynamic Systems
and Control Conference, Ann Arbor, MI, October, 2008.

**Using stochastic linear-parameter-varying control for CPU management of
Internet servers**

*W. Qin
and Q. Wang*

*Proceedings
of the 46 ^{th} IEEE Conference on Decision and Control*, New Orleans, LA, December 2007, pp.
3824-3829. (

**An LPV approach to performance control of Web servers under self-similar
workloads**

*W.
Qin, Q. Wang, and A. Sivasubramaniam*

*Proceedings
of the 2 ^{nd} IEEE International Workshop on Feedback Control Implementation
and Design in Computing Systems and Networks*, Munich, Germany, May 2007, pp. 27-32.

**Nonlinear control design of a hypersonic aircraft using Sum-of-Squares
method**

*A.
**Ataei-Esfahani
and Q. Wang*

*Proceedings
of the American Control Conference*,
New York City, July, 2007, pp. 5278-5283.
**(American Control Conference Best
Presentation in Session Award)**

**Modeling and managing thermal profiles of rack-mounted servers with ThermoStat**

*J.
Choi, Y. Kim, A. Sivasubramaniam, J. Srebric, Q. Wang and J. Lee*

*Proceedings
of the* *IEEE 13 ^{th} International Symposium
on High Performance Computer Architecture*, Scottsdale, AZ, February, 2007,
pp. 205-215.

(Acceptance rate: 28 accepted / 174
submissions)

**Nonlinear robust control design for a supercavitating
vehicle **

*X. Mao
and Q. Wang*

*Proceedings
of the ASME International Mechanical Engineering Congress and Exposition*, Chicago, IL, November, 2006, IMECE
2006-14519.

**A first-principles**** based LPV modeling and
design for performance management of Internet Web servers**

*W. Qin,
Q. Wang, Y. Chen, and N. Gautam*

*Proceedings
of* *the American Control Conference, *Minneapolis,
MN, June 2006, pp. 2939-2944. (First
author supervised by candidate)

**Robust failure compensation for a morphing aircraft model using a
probabilistic approach**

*A.
**Ataei-Esfahani,
and Q. Wang*

*Proceedings
of the* *American Control Conference, *Minneapolis,
MN, June 2006, pp. 351-356.

**(American
Control Conference Best Presentation in Session Award)**

**Storage performance
virtualization via throughput and latency control **

*J. Zhang, A. Riska,
A. Sivasubramaniam, Q. Wang and E. Riedel*

*Proceedings of the IEEE/ACM
International Symposium on Modeling, Analysis, and Simulation of Computer and
Telecommunication Systems (MASCOTS), *Atlanta, GA,
September 2005, pp. 135-142.

**Feedback
performance control for computer systems: An LPV approach **

*W. Qin and Q. Wang*

*Proceedings of the American Control
Conference, *Portland, OR, June 2005, pp. 4760-4765.

**Pricing and
autonomic control of Web servers with time-varying request patterns**

*Y. Chen, A. Das, N. Gautam, Q. Wang and A. Sivasubramaniam*

*Proceedings
of the International Conference on Autonomic Computing, *Seattle,
WA, June, 2004, pp. 290-291.

**Probabilistic
robust control design of polynomial vector fields**

*Q. Wang*

*Proceedings
of IEEE Conference on Decision and Control, *Maui, HI,
December 2003, pp. 2447 - 2452.

**Reliable operation
of rotorcraft using probabilistic robust control**

*J. Horn, D. Tolani,
C. Lagoa, Q. Wang and A. Ray*

*Proceedings
of IFAC Symposium on Fault Detection, Supervision and Safety of Technical
Processes, *Washington, DC, June 2003, pp.
181-186.

**Plutus: Scalable
secure sharing on untrusted storage**

*M. Kallahalla, E. Reidel, R. Swaminathan, Q. Wang,
and K. Fu*

*Proceedings of
USENIX Conference on File and Storage Technologies (FAST),*
San Francisco, CA, January 2003, pp. 29-42.

(Acceptance
rate: 18 accepted / 87 submissions)

**Robust flight control of a high performance
aircraft **

*Q. Wang and R. F. Stengel*

AIAA paper 2001-4101, Montreal, Canada, August 2001.

**Robust nonlinear control of a hypersonic
aircraft**

*Q. Wang and R. F. Stengel*

*Proceedings of
the AIAA Guidance, Navigation, and Control Conference, *Portland,
OR, August 1999, pp. 413-423.

**Robust control of nonlinear systems with
parametric uncertainty**** **

Q. Wang and R.
F. Stengel

*Proceedings of
the 37th IEEE Conference on Decision and Control, *Tampa,
FL, December 1998, pp. 3341-3346.

**Searching for robust minimal-order
compensators**

* R. F. Stengel and Q. Wang*

*Proceedings of the American Control
Conference, *Philadelphia, PA, June 1998, pp. 3138-3142.