UWEE Faculty
Howard Jay Chizeck
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Howard Jay Chizeck
253B EE Building chizeck at u.washington.edu |
Case Western Reserve University, Systems and Control Engr., 1976 MS
Case Western Reserve University, Systems Engr., 1974 BS
UW Biorobotics
Laboratoy
Robotics, Controls and Mechatronics Group at UW
Pacific Northwest Center for Neural Engineering
UW Center for Nanotechnology
Biosketch
Howard Jay Chizeck received his B.S. (1974) and M.S. (1976) degrees from Case Western Reserve University and the Sc.D. degree in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology in 1982. He has been a faculty member and Department Chair at two major research universities - in a small department at a private university and in a large department at a public university. From 1981 until 1998 he was at Case Western Reserve University in Cleveland, serving as Chair of the Department of Systems, Control and Industrial Engineering from 1995 - 1998. Professor Chizeck joined the University of Washington, as the Chair of the Electrical Engineering Department from August 1998- September 2003. Currently he is a Professor of Electrical Engineering and also an Adjunct Professor of Bioengineering at the UW. Professor Chizeck has worked with industry in the assessment and implementation of new technologies, biomedical instrumentation, medical device product development and testing, and the synthesis and evaluation of automation and control systems. He has been involved, to varying degrees, with nine technology-based start-up companies in San Diego, Cleveland and Seattle. Professor Chizeck was elected a Fellow of the IEEE in 1999 "for contributions to the use of control system theory in biomedical engineering."
Professor Chizeck's research interests include control engineering theory and the application of control engineering to biomedical problems. He ha worked primarily in three areas: (1) stochastic control theory (2) mathematical modeling, system identification and adaptive control theory and applications to regulation of physiological variables, (3) the development of assistive devices for individuals having physical disabilities.
Automation of Robotic Surgery. Can some parts of surgical procedures, when carried out using surgical robots, be automated (under human supervision)? Current work, in collaboration with researchers in the UW Biorobotics Laboratory, involves the design and analysis of automated (and surgeon-supervised semi-automated) robotic surgery systems. This includes remotely-operated robotic systems -- with consideration of the effects of random, time-varying communication delays.
Applications of Systems and Control to Neural Engineering. Can individuals who are paralyzed, due to spinal cord injury, stroke or head injury, be able to recover lost functions through devices that repair or replace broken parts of the nervous system? In Cleveland, Professor Chizeck was a member of several large projects at Case Western Reserve University and the Cleveland FES Center, working to develop medical devices to assist individuals with physical handicaps using Functional Electrical Stimulation (FES). The goal of this work is to enable individuals with impaired motor control of the lower extremities (due to spinal cord injury, stroke, or head injury) to stand, achieve locomotion and negotiate stairs, and to provide hand grasp function to individuals with impaired motor control of the upper extremities.
At the University of Washington, his research in this area is focusing on the incorporation of feedback control systems for systems combining Brain-Computer Interfaces with FES or Prosthetic devices. This work is in collaboration with members of the new Pacific Northwest Center for Neural Engineering.
Systems and Control for Biology and Bioengineering. Are there underlying mathematical descriptions and structure that capture important features of biological systems? Can they be used for detection and control (or diagnosis and treatment)? Professor Chizeck has addressed algorithmic issues, and applications involving the modeling and parameter estimation of electrically-stimulated muscle and joint dynamics, the system identification of the dynamics of lactate and oxygen uptake during incremental exercise, and real-time gait event detection in spinal cord injury patients during paraplegic walking. Other research considers adaptive controllers that operate in real time, to regulate patient physiological variables through the simultaneous computer-controlled delivery of one or more therapeutic drugs or other inputs. These algorithms are components of 'closed loop drug delivery' devices for use in the operating room, intensive care unit of or devices used by ambulatory patients in the home and workplace.
Currently my work in this area involves development of methods for the modeling, simulation and control of multiscale systems (having different scales of spatial or temporal resolution).
Stochastic Control Theory. How can systems that abruptly change in time, due to failures or other sudden changes, be controlled? This work in stochastic control theory has focused on the optimal control of continuous or discrete time systems that would be linear, except for randomly jumping parameters. Although this research is highly mathematical, its results have found practical applications (by others) that include the design of fault tolerant controllers that can perform well despite component or communication failures, and the control of nonlinear systems that jump between different operating points, and the design and simulation of mixed-signals systems.
Recently Completed PhD Students (Link to all graduate students)
Nguyen, Tho. H., Hydrological Modeling and Sluice Gate Control in the Mekong River Delta, Electrical Engineering, University of Washington, October 2009.
Xiaolong Yu, Control Methods for Automated Surgery, Electrical Engineering, University of Washington, December 2008.
Chun-I Chen, Tracking Using Randomly Delayed Measurements, Electrical Engineering, University of Washington, August 2008.
Stephen D. Hawley, Adaptive Scale Decomposition for Multiscale Systems, Electrical Engineering and Nanotechnology, University of Washington, March 2008.
Selected Recent Publications (Link to all publications)
Stephen D. Hawley, Les E. Atlas and H. J. Chizeck, "Some Properties of an Empirical Mode Type Signal Decomposition Algorithm," IEEE Signal Processing Letters, Vol. 17, No. 1, pp. 24-27, Jan. 2010.
H.J. Chizeck, E. Butterworth and J. B. Bassingthwaighte, "Error detection and unit conversion: Automated Unit Balancing in Modeling Interface Systems," IEEE Engr. Med. Biology Mag., Vol. 28 No. 3, pp. 50-58. May/June 2009.
Xiaolong Yu and H. J. Chizeck, "Equilibrium Selection in Automated Surgery," 2008 IEEE International Conference on Biomedical Robotics and Biomechatronics, Scottsdale, Arizona, October 2008.
Xiaolong Yu and H. J. Chizeck, "Lower Bounds on the Optimal Control of Soft Tissue Grasping," 30th Annual International IEEE EMB Conference, Vancouver, Canada, August 2008.
S. D. Hawley, L. E. Atlas and H. J. Chizeck, "Some Properties of an Empirical Mode Type Signal Decomposition Algorithm," ICASSP 2008, Las Vegas, April 2008.
J. B. Bassingthwaighte and H. J. Chizeck, "The Physiome Projects and Multiscale Modeling," IEEE Signal Processing Magazine, March 2008.
Xiaolong Yu, H. J. Chizeck and B. Hannaford, "Comparison of transient performance in the control of soft tissue grasping," International Conference on Intelligent Robots and Systems, California, San Diego, CA: Oct. 29-Nov. 2, 2007.
H.J. Chizeck, C. Chen, Y. Ji, "Discussion on: Mean Square Exponential Stability for Some Stochastic Linear Discrete Time Systems," European Journal of Control, 12:396-397 (2006).
S. D. Hawley, A. Chiu, and H.J. Chizeck, "Model Identification for DNA Sequence-Structure Relationships," Mathematical Biosciences, 204:119-131, 2006.
Jeff A. Bilmes, Jonathan Malkin, Xiao Li, Susumu Harada, Kelley Kilanski, Katrin Kirchhoff, Richard Wright, Amarnag Subramanya, James A. Landay, Patricia Dowden and Howard Chizeck, "The Vocal Joystick," ICASSP 2006, Toulouse, France, May 2006.
T. L. Chia, D. Simon and H.J. Chizeck, "Kalman Filtering with Statistical State Constraints," Control and Intelligent Systems, Vol. 34, No. 1, pp.73-79, 2006.
J. B. Bassingthwaighte, H. J. Chizeck and L. E. Atlas, "Strategies and Tactics in Multiscale Modeling of Cell-To-Organ Systems," Proc. IEEE., Vol. 94, No. 4, pp. 819-831, 2006.
Professor Chizeck has a strong interest in innovative, multidisciplinary education. At CWRU he developed a course for freshman, exploring topics of systems behavior and stability through computer simulation. Topics included engineering, biological and economic systems. At the UW I helped to develop a "hands-on" freshman introductory course (Secret Life of the Electron) and organized a very successful seminar course on Intellectual Property for Engineers and Scientists in partnership with a Seattle law firm (described in "Student Engineers Take to the Law" in The Chronicle of Higher Education, June 18, 1999). During his term as EE Department Chair at UW, the department developed and implemented innovative K-12 outreach activities that involved the participation of faculty and students. A volunteer-based outreach to elementary schools and high schools was directed toward elementary school students. The department also actively participated in the FIRST robotics program, with EE undergraduates serving as technical advisors to high school teams. Since 2003, Professor Chizeck has participated in the Technopreneurship & Innovation Program (TIP) program of Nanyang Technological University (Singapore), which includes a business plan competition at UW (using UW developed technologies). During the "Early Fall Start" session in 2007 -2009, he taught the "Discovery Seminar" course Indistinguishable from Magic: New Technologies, Science Fiction, and Us (for incoming freshmen). This course examines the interconnections between science fiction, the development of new technologies, and their societal impact. It was offered in 2009 as an Honors Course.
* Fellow of the IEEE (1999): "for contributions to the use of control system
theory in biomedical engineering."
* Enterprise Development Inc. [Cleveland, Ohio] Innovation Award (1998), "for
the ORICA adaptive predictive controller."
* The Motion Study Laboratory of the Cleveland VA Medical Center received the
Computerworld Smithsonian Award in Medicine, in recognition of research
conducted in the use of Functional Electrical Stimulation research to provide
locomotion for individuals paralyzed by spinal cord injury). (1994)
* Nominee for Wittke Award (Outstanding Undergraduate Teaching), Case Western
Reserve University, 1984
* National Science Foundation Engineering Research Initiation Grant, 1983-1985
* National Science Foundation Graduate Fellowship, 1975-1978
Administrative Roles
Professor Chizeck was Chair of the Department of Systems, Control and Industrial Engineering at Case Western Reserve University from 1995 - 1998. He was then the Chair of the Electrical Engineering Department at the University of Washington from August 1998 - September 2003. During this time the department experienced a period of dramatic and positive change. Both the undergraduate and graduate programs grew in quality, size and national rankings. Research activity and funding rapidly increased, from ($5.0M new grants/$6M expenditures) in 1998-1999 to approximately ($20M new grants/$15M expenditures) in both 2001-2002 and 2002-2003. External recognition of the departmental improvement, at least in terms of the US News and World Report rankings, improved (undergraduate and graduate) from the high 20's to the mid-teens. This rapid growth in research activity was accomplished by several actions. The most important step in increasing departmental research was the strategic hiring of both senior and junior faculty, primarily in interdisciplinary areas of increasing importance while maintaining the best of the department's historical strengths and fitting the goals of the larger institution and region. Fourteen faculty members joined the department during this time, including nine Assistant Professors. All but one of those eligible among these new professors have received the NSF CAREER Award, and two have received the PECASE award. During this time the number of female tenure track faculty in the department increased from five to nine (out of 44).