abstract = "This paper presents methods to visualise the structure
of trees that occur in genetic programming. These
methods allow for the inspection of structure of entire
trees even though several thousands of nodes may be
involved. The methods also scale to allow for the
inspection of structure for entire populations and for
complete trials even though millions of nodes may be
involved. Examples are given that demonstrate how this
new way of seeing can afford a potentially rich way of
understanding dynamics that underpin genetic
programming. The examples indicate further studies that
might be enabled by visualising structure at these
scales.",
notes = "Mathematica source code at
http://library.wolfram.com/infocenter/MathSource/5163
See also
http://www.cs.ucl.ac.uk/staff/W.Langdon/gp2lattice/gp2lattice.html",