Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A hybrid COA$\epsilon$-constraint method for solving multi-objective
  problems   In this paper, a hybrid method for solving multi-objective problem has been
provided. The proposed method is combining the {\epsilon}-Constraint and the
Cuckoo algorithm. First the multi objective problem transfers into a
single-objective problem using $\epsilon$-Constraint, then the Cuckoo
optimization algorithm will optimize the problem in each task. At last the
optimized Pareto frontier will be drawn. The advantage of this method is the
high accuracy and the dispersion of its Pareto frontier. In order to testing
the efficiency of the suggested method, a lot of test problems have been solved
using this method. Comparing the results of this method with the results of
other similar methods shows that the Cuckoo algorithm is more suitable for
solving the multi-objective problems.

21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys