build the universe on the bit
- j.a. wheeler
. . .
. .
operative term in wheeler's prescription
is "build".. . for the concept
of "information" is
is only
as good as
the yes/no question
whose answer it represents
and shannon's theory can't say which
consider the information content of the
human iris: ~3.22 bits/mm^2
according to
john daugman
"the importance of being random: statistical principles of iris recognition"
pattern recognition, 2003

. .


. .
major tests of daugman's recognition algorithm:
sandia labs 1996 . ~20k irises . no false+
british telecom labs 1997 . ~223k irises . no false+
sensar corp 2000 . ~500k irises . no false+
joh.enschede 2000 . ~20k irises . no false+
eyeticket 2001 . ~300k irises . no false+
nat physics lab uk 2001 . 2.73m irises . no false+
j daugman 2003, 9.1m irises . no false+
iridian technologies 2003 . 984m irises . no false+
iris recognition works because
iris patterns are invariant
throughout a person's
but hides that
3.22 bits per sq mm
is not an intrinsic property
of [the distribution of] iris patterns
but a joint property of the interaction of iris,
measurement protocol, eg selected optical spectrum
and daugman's specific wavelet encoding & related processing
. .
"information content" of messages only makes sense in context
that context, far-from-eq, supplies the mappings
relating the measure spaces
to semantics


. .
previous attempts to solve end-to-end artificial intelligence problems
have failed in one of two ways:
some oversimplified the problems to the point that
solutions did not transfer to real world
others ran into a wall of engineering complexity
too many things to put together
too many interactions
too many bugs
to do better we need
a new mathematical language for a.i.
at the least we need a language that combines
logic and probability
pedro domingo / "solving a.i" mit tech review "energy tech issue" 5.2009
in math, we need to average over many similar objects
thus if we have too few objects, we cannot perform the averaging
if we have too many objects, non-standard behavior
which rarely occurs could be washed away
bj miller + rf bighash
the old hope of bourbaki
to see mathematical structures arise naturally
from a hierarchy of sets, from their subsets
and from their combination, is doubtless
only an illusion
r thom
is a dynamic notion
one may find 2 events independent
at some point, but then find them dependent
after obtaining some evidence
a darwiche
either math is
too big for the human mind
or the mind is more than a machine
k goedel