Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Novel Hybrid GWO with WOA for Global Numerical Optimization and
  Solving Pressure Vessel Design   A recent metaheuristic algorithm, such as Whale Optimization Algorithm (WOA),
was proposed. The idea of proposing this algorithm belongs to the hunting
behavior of the humpback whale. However, WOA suffers from poor performance in
the exploitation phase and stagnates in the local best solution. Grey Wolf
Optimization (GWO) is a very competitive algorithm comparing to other common
metaheuristic algorithms as it has a super performance in the exploitation
phase while it is tested on unimodal benchmark functions. Therefore, the aim of
this paper is to hybridize GWO with WOA to overcome the problems. GWO can
perform well in exploiting optimal solutions. In this paper, a hybridized WOA
with GWO which is called WOAGWO is presented. The proposed hybridized model
consists of two steps. Firstly, the hunting mechanism of GWO is embedded into
the WOA exploitation phase with a new condition which is related to GWO.
Secondly, a new technique is added to the exploration phase to improve the
solution after each iteration. Experimentations are tested on three different
standard test functions which are called benchmark functions: 23 common
functions, 25 CEC2005 functions and 10 CEC2019 functions. The proposed WOAGWO
is also evaluated against original WOA, GWO and three other commonly used
algorithms. Results show that WOAGWO outperforms other algorithms depending on
the Wilcoxon rank-sum test. Finally, WOAGWO is likewise applied to solve an
engineering problem such as pressure vessel design. Then the results prove that
WOAGWO achieves optimum solution which is better than WOA and Fitness Dependent
Optimizer (FDO).

25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn