ACKNOWLEDGEMENTS
This material, based on research performed in the Learning Agents Center, is partially sponsored by several U.S. government organizations, including the Air Force Office of Scientific Research (FA9550-07-1-0268), the Air Force Research Laboratory (FA8750-04-1-0257), and the National Science Foundation (0750461). The U.S. government is authorized to reproduce and distribute reprints for governmental purposes notwithstanding any copyright notation thereon. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official polices or endorsements, either expressed or implied, of the Air Force Office of Scientific Research, the Air Force Research Laboratory, the National Science Foundation, or the U.S. government.