Hi Aja,

Couple of questions:

1. connectivity, number of parameters

Just to check, each filter connects to all the feature maps below it,
is that right?  I tried to check that by ball-park estimating number
of parameters in that case, and comparing to the section paragraph in
your section 4.  And that seems to support that hypothesis.  But
actually my estimate is for some reason under-estimating the number of
parameters, by about 20%:

Estimated total number of parameters
approx = 12 layers * 128 filters * 128 previous featuremaps * 3 * 3 filtersize
= 1.8 million

But you say 2.3 million.  It's similar, so seems feature maps are
fully connected to lower level feature maps, but I'm not sure where
the extra 500,000 parameters should come from?

2. Symmetry

Aja, you say in section 5.1 that adding symmetry does not modify the
accuracy, neither higher or lower.  Since adding symmetry presumably
reduces the number of weights, and therefore increases learning speed,
why did you thus decide not to implement symmetry?

Hugh
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