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Roderic A. Grupen, Associate Professor

Department of Computer Science
University of Massachusetts
Amherst, MA

EDUCATION Ph.D. Computer Science, University of Utah 1988
M.S. Mechanical Engineering, Pennsylvania State University 1984
B.A. Physics, Franklin and Marshall College 1980
B.S. Mechanical Engineering, Washington University 1980
PROFESSIONAL EXPERIENCE

1995 - present:
Associate Professor, Department of Computer Science, University of Massachusetts, Amherst, Massachusetts.
1988 - 95
Assistant Professor, Department of Computer Science, University of Massachusetts, Amherst, Massachusetts.
1988 - present
Co-Director of the Laboratory for Perceptual Robotics, Department of Computer Science, University of Massachusetts, Amherst, Massachusetts.
1984 - 88:
Research and Teaching Assistant, Departments of Computer Science and Mechanical Engineering, University of Utah, Salt Lake City, Utah.
1981 - 82:
Systems Design Engineer, General Electric Company Edison Engineering Program, Louisville, Kentucky.
1980:
Washington University Technical Associates, St. Louis, Missouri.

RESEARCH INTERESTS My research focus is the integration of Artificial Intelligence and Control Theory for autonomous robot control. I have been investigating the use of sensor-rich component automation as a means of enhancing the flexibility of robots applied to a diverse range of tasks. A central focus of this work is computationally tractible controllers for complex, highly redundant systems. The approach entails on-line composition of a control basis for manipulation tasks. Constraints on the expression and composition of control have been established which preserve stability and convergence characteristics in the integrated system. We have applied this paradigm to a 20 DOF hand/arm system, to a homebuilt legged platform and to a non-holonomic mobile platform as well. Also underway is a research program to characterize and exploit the underlying predictability of these control architectures to facilitate process scheduling. This work is focussed on evaluating process control alternatives with respect to quality, timeliness, and throughput in real-time, flexible automation. In the future, this work will be applied to autonomous robot control, to ``agile'' low volume manufacturing systems, and to control for intelligent vehicles and highway systems.

SELECTED PUBLICATIONS

  1. Huber, M. and Grupen, R., ``2D Contact Detection and Localization Using Proprioceptive Information.'' IEEE Transactions on Robotics and Automation, 10(1):23-33, 1994.
  2. Connolly, C., and Grupen, R., ``On the Applications of Harmonic Functions to Robotics,'' In Journal of Robotic Systems, 10(7):931-946, October, 1993.
  3. Grupen, R., Huber, M., Coelho, J,. and Souccar, K., In ``Distributed Control Representation for Manipulation Tasks,'' IEEE Expert, Special Issue on Intelligent Robotic Systems, Ed. R. Arkin, 10(2):9-14, 1994.
  4. Coelho, J. and Grupen, R., ``Optimal Multifingered Grasp Synthesis,'' the IEEE Conference on Robotics and Automation, San Diego, CA, May, 1994.
  5. Grupen, R. and Souccar, K., ``Manipulation-Based Spatial Isotropy: A Kinematic Reflex,'' In MCPA'93 - Workshop on Mechatronical Computer Systems for Perception and Action, Halmstad, Sweden, June 1-3, 1993.
  6. Gullapalli, V., Barto, A., and Grupen, R., ``Learning Admittance Mappings for Force-Guided Assembly,'' the IEEE Conference on Robotics and Automation, San Diego, CA, May, 1994.
  7. Singh, S., Connolly, C., Grupen, R., and Barto, A., ``Robust Reinforcement Learning in Motion Planning,'' Neural Information Processing Systems (NIPS), 1993.
  8. Connolly CI, Grupen RA, ``Nonholonomic Path Planning Using Harmonic Functions,'' the 1994 IEEE Conference on Intelligent Robots and Systems (IROS '94), Munich, Germany.
  9. Coelho, J., Grupen, R., ``A Control Basis for Multifingered Grasps,'' submitted to the Journal of Robotic Systems, August, 1995.
  10. Stan, M., Burleson, W., Connolly, C., and Grupen, R., ``Analog VLSI for Robot Path Planning,'' accepted by Journal of VLSI Signal Processing, Special issue on Analog Computation, 1993.
COLLEAGUES/RECENT COLLABORATORS



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grupen@tigger.cs.umass.edu
Wed Apr 16 00:53:15 EDT 1997