Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nature's Way of Optimizing   We propose a general-purpose method for finding high-quality solutions to
hard optimization problems, inspired by self-organizing processes often found
in nature. The method, called Extremal Optimization, successively eliminates
extremely undesirable components of sub-optimal solutions. Drawing upon models
used to simulate far-from-equilibrium dynamics, it complements approximation
methods inspired by equilibrium statistical physics, such as Simulated
Annealing. With only one adjustable parameter, its performance proves
competitive with, and often superior to, more elaborate stochastic optimization
procedures. We demonstrate it here on two classic hard optimization problems:
graph partitioning and the traveling salesman problem.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol