









• 
In a meanfield
logistic unit, the



total input
provides a linear



energygradient
and the negative


entropy provides
a containment



function with
fixed curvature.



• 
So it is
impossible for the value



0.7 to have much
lower free



energy than both
0.8 and 0.6.



This is no good
for modeling



realvalued data.

