more RBF refs

[Steve Hanson]

Another paper on RBFs ("spherical units")
 also using a  basis function (cauchy) less
localized than the gaussian but more localized than
the  linear-logistic ("sigmoid") is to be found in:

Hanson, S. J. & Gluck, M. A.  
    Spherical Units as Dynamic Consequential Regions:
    Implications for Attention, Competition and Categorization.
    Advances in Neural Information Processing 3, R. Lippmann,
    J. Moody & D. Touretzky (Eds.),  Morgan Kaufman,
    pp. 656-665, (1991).





Stephen J. Hanson
Learning Systems Department
SIEMENS Research 
755 College Rd. East
Princeton, NJ 08540