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California Institute of Technology

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Steve Schaffer
Jet Propulsion Laboratory

Constants aren't. Variables won't. -Murphy's Law of Programming

Steve Schaffer

Resume

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Contact Info

Email

Steven.R.Schaffer@jpl.nasa.gov
srschaff@aig.jpl.nasa.gov

Telephone

818.354.8637

Fax

818.393.3233

Office Location

JPL.301.255H

Mailing Address

Steve Schaffer
M/S: 301-260
4800 Oak Grove Dr.
Pasadena CA, 91109-8099

Summary

Steven Schaffer has worked for the Jet Propulsion Laboratory's Artificial Intelligence Group as a research programmer since May 2001. He has been involved in automated DSN antenna control and scheduling, executive modelling for research rovers, flight experiment validation, sensorweb operations, and autonomous planning under uncertainty. Most recently, he has worked on expanded probabilistic estimation methods for parameter-driven planning. Coincidentally, he is also the AIG webmaster.

Steve holds bachelors degrees in computer science and chemistry from Carnegie Mellon University , where he specialized in multi-agent artificial intelligence. He has worked under Gal Kaminka and Manuela Veloso on the Gamebots multi-agent team competition infrastructure. Steve is currently persuing a masters degree in computer science from the University of Southern California.

Steve's research interests are in multi-agent problem solving, adaptive online algorithms, reasoning about uncertainty, and human-agent interaction. Outside of work, Steve enjoys motorcycling, video games, frisbee, hiking, and incinerating things using the Michele Judd Memorial Giant Fresnel Lens.

Project History

EO1/ASE Sensorweb

Expanded the onboard EO1 Science agent's capabilities to respond to events observed by a network of ground based sensors.

DSN Scheduling Assistant

Developed GUI and backend planner models to assist human planners in preparing and repairing DSN schedules.

Autonomous Sciencecraft Experiment

Supported validation and operation of reactive science agent onboard the EO-1 spacecraft.

Planning With Uncertainty

Designed, implemented, and evaluated a probabilistic reasoning system to augment the existing ASPEN planner.

Autonomous Rover Control

Implemented executive model in TDL for the Rocky 7 and 8 research rover demonstrations.

DSN Automation

Developed executive infrastructure and models for autonomous control of a single DSN tracking antenna.

Selected Publications

Probabilistic Reasoning for Plan Robustnexx
Steve Schaffer, Steve Chien, Brad Clement
International Joint Conference on Artificial Intelligence (JCAI 2005)
Edinburgh, Scotland. July 2005.

Validating the Autonomous EO-1 Science Agent
B. Cichy, S. Chien, S. Schaffer, D. Tran, G. Rabideau, R. Sherwood International Workshop on Planning and Scheduling for Space (IWPSS 2004).
Darmstadt, Germany. June 2004.

CLEaR: A Framework for Balancing Deliberation and Reactive Control
F. Fisher, D. Gaines, T. Estlin, S. Schaffer, C. Chouinard
Artificial Intelligence Planning and Scheduling (AIPS 2002): On-line Planning and Scheduling Workshop.
Toulouse, France. April 2002.

Gamebots: A 3D Virtual World Test-Bed for Multi-Agent Research
R. Adobbati, A. Marshall, A. Scholer, S. Tejada, G. Kaminka, S. Schaffer, C. Sollitto.
Second International Workshop on Infrastructure for Agents, MAS, and Scalable MAS.
Montreal, Canada. May 2001.

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