Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chaos as a Source of Complexity and Diversity in Evolution   The relevance of chaos to evolution is discussed in the context of the origin
and maintenance of diversity and complexity. Evolution to the edge of chaos is
demonstrated in an imitation game. As an origin of diversity, dynamic
clustering of identical chaotic elements, globally coupled each to other, is
briefly reviewed. The clustering is extended to nonlinear dynamics on
hypercubic lattices, which enables us to construct a self-organizing genetic
algorithm. A mechanism of maintenance of diversity, ``homeochaos", is given in
an ecological system with interaction among many species. Homeochaos provides a
dynamic stability sustained by high-dimensional weak chaos. A novel mechanism
of cell differentiation is presented, based on dynamic clustering. Here, a new
concept -- ``open chaos" -- is proposed for the instability in a dynamical
system with growing degrees of freedom. It is suggested that studies based on
interacting chaotic elements can replace both top-down and bottom-up
approaches.

7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci