Abstract
Provision of appropriately structured memory is shown,
in some cases, to be advantageous to genetic
programming (GP) in comparison with directly
addressable indexed memory.
Three ``classic'' problems are solved. The first two
require the GP to distinguish between sentences that
are in a context free language and those that are not
given positive and negative training examples of the
language. The two languages are, correctly nested
brackets and a Dyck language (correctly nested brackets
of different types). The third problem is to evaluate
integer Reverse Polish (postfix)
expressions.
Comparisons are made between GP attempting to solve
these problems when provided with indexed memory or
with stack data structures.
- (adf),
- algorithms,
- artificial
- automatic
- automatically
- brackets,
- cfg,
- code
- context
- data
- defined
- demes
- down
- dyck
- evolution,
- expressions,
- fitness,
- free
- functions
- generation,
- genetic
- grammar
- induction,
- language
- language,
- learning,
- machine
- matched
- object
- oriented
- pareto
- polish
- programming,
- push
- reverse
- stack,
- structures,
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