Journal of Computational Design and Engineering,
Journal Year:
2022,
Volume and Issue:
9(5), P. 1817 - 1851
Published: Aug. 16, 2022
Abstract
The
whale
optimizer
is
a
popular
metaheuristic
algorithm,
which
has
the
problems
of
weak
global
exploration,
easy
falling
into
local
optimum,
and
low
optimization
accuracy
when
searching
for
optimal
solution.
To
solve
these
problems,
this
paper
proposes
an
enhanced
algorithm
(WOA)
based
on
worst
individual
disturbance
(WD)
neighborhood
mutation
search
(NM),
named
WDNMWOA,
employed
WD
to
enhance
ability
jump
out
optimum
adopted
NM
possibility
individuals
approaching
superiority
WDNMWOA
demonstrated
by
representative
IEEE
CEC2014,
CEC2017,
CEC2019,
CEC2020
benchmark
functions
four
engineering
examples.
experimental
results
show
that
thes
better
convergence
strong
than
original
WOA.
PLoS ONE,
Journal Year:
2023,
Volume and Issue:
18(1), P. e0280006 - e0280006
Published: Jan. 3, 2023
Monkey
king
evolution
(MKE)
is
a
population-based
differential
evolutionary
algorithm
in
which
the
single
strategy
and
control
parameter
affect
convergence
balance
between
exploration
exploitation.
Since
strategies
have
considerable
impact
on
performance
of
algorithms,
collaborating
multiple
can
significantly
enhance
abilities
algorithms.
This
our
motivation
to
propose
multi-trial
vector-based
monkey
named
MMKE.
It
introduces
novel
best-history
trial
vector
producer
(BTVP)
random
(RTVP)
that
effectively
collaborate
with
canonical
MKE
(MKE-TVP)
using
approach
tackle
various
real-world
optimization
problems
diverse
challenges.
expected
proposed
MMKE
improve
global
search
capability,
strike
exploitation,
prevent
original
from
converging
prematurely
during
process.
The
was
assessed
CEC
2018
test
functions,
results
were
compared
eight
metaheuristic
As
result
experiments,
it
demonstrated
capable
producing
competitive
superior
terms
accuracy
rate
comparison
comparative
Additionally,
Friedman
used
examine
gained
experimental
statistically,
proving
Furthermore,
four
engineering
design
optimal
power
flow
(OPF)
problem
for
IEEE
30-bus
system
are
optimized
demonstrate
MMKE's
real
applicability.
showed
handle
difficulties
associated
able
solve
multi-objective
OPF
better
solutions
than
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: March 30, 2024
Abstract
To
address
the
issues
of
lacking
ability,
loss
population
diversity,
and
tendency
to
fall
into
local
extreme
value
in
later
stage
optimization
searching,
resulting
slow
convergence
lack
exploration
ability
artificial
gorilla
troops
optimizer
algorithm
(AGTO),
this
paper
proposes
a
search
that
integrates
positive
cosine
Cauchy's
variance
(SCAGTO).
Firstly,
is
initialized
using
refractive
reverse
learning
mechanism
increase
species
diversity.
A
strategy
nonlinearly
decreasing
weight
factors
are
introduced
finder
position
update
coordinate
global
algorithm.
The
follower
updated
by
introducing
Cauchy
variation
perturb
optimal
solution,
thereby
improving
algorithm's
obtain
solution.
SCAGTO
evaluated
30
classical
test
functions
Test
Functions
2018
terms
speed,
accuracy,
average
absolute
error,
other
indexes,
two
engineering
design
problems,
namely,
pressure
vessel
problem
welded
beam
problem,
for
verification.
experimental
results
demonstrate
improved
significantly
enhances
speed
exhibits
good
robustness.
demonstrates
certain
solution
advantages
optimizing
verifying
superior
practicality
Neural Computing and Applications,
Journal Year:
2022,
Volume and Issue:
35(7), P. 5251 - 5275
Published: Nov. 1, 2022
Feature
selection
(FS)
is
one
of
the
basic
data
preprocessing
steps
in
mining
and
machine
learning.
It
used
to
reduce
feature
size
increase
model
generalization.
In
addition
minimizing
dimensionality,
it
also
enhances
classification
accuracy
reduces
complexity,
which
are
essential
several
applications.
Traditional
methods
for
often
fail
optimal
global
solution
due
large
search
space.
Many
hybrid
techniques
have
been
proposed
depending
on
merging
strategies
individually
as
a
FS
problem.
This
study
proposes
modified
hunger
games
algorithm
(mHGS),
solving
optimization
problems.
The
main
advantages
mHGS
resolve
following
drawbacks
that
raised
original
HGS;
(1)
avoiding
local
search,
(2)
problem
premature
convergence,
(3)
balancing
between
exploitation
exploration
phases.
has
evaluated
by
using
IEEE
Congress
Evolutionary
Computation
2020
(CEC'20)
test
ten
medical
chemical
datasets.
dimensions
up
20000
features
or
more.
results
compared
variety
well-known
methods,
including
improved
multi-operator
differential
evolution
(IMODE),
gravitational
algorithm,
grey
wolf
optimization,
Harris
Hawks
whale
slime
mould
search.
experimental
suggest
can
generate
effective
without
increasing
computational
cost
improving
convergence
speed.
SVM
performance.
Mathematical Biosciences & Engineering,
Journal Year:
2022,
Volume and Issue:
19(11), P. 10963 - 11017
Published: Jan. 1, 2022
<abstract><p>Aquila
Optimizer
(AO)
and
African
Vultures
Optimization
Algorithm
(AVOA)
are
two
newly
developed
meta-heuristic
algorithms
that
simulate
several
intelligent
hunting
behaviors
of
Aquila
vulture
in
nature,
respectively.
AO
has
powerful
global
exploration
capability,
whereas
its
local
exploitation
phase
is
not
stable
enough.
On
the
other
hand,
AVOA
possesses
promising
capability
but
insufficient
mechanisms.
Based
on
characteristics
both
algorithms,
this
paper,
we
propose
an
improved
hybrid
optimizer
called
IHAOAVOA
to
overcome
deficiencies
single
algorithm
provide
higher-quality
solutions
for
solving
optimization
problems.
First,
combined
retain
valuable
search
competence
each.
Then,
a
new
composite
opposition-based
learning
(COBL)
designed
increase
population
diversity
help
escape
from
optima.
In
addition,
more
effectively
guide
process
balance
exploitation,
fitness-distance
(FDB)
selection
strategy
introduced
modify
core
position
update
formula.
The
performance
proposed
comprehensively
investigated
analyzed
by
comparing
against
basic
AO,
AVOA,
six
state-of-the-art
23
classical
benchmark
functions
IEEE
CEC2019
test
suite.
Experimental
results
demonstrate
achieves
superior
solution
accuracy,
convergence
speed,
optima
avoidance
than
comparison
methods
most
functions.
Furthermore,
practicality
highlighted
five
engineering
design
Our
findings
reveal
technique
also
highly
competitive
when
addressing
real-world
tasks.
source
code
publicly
available
at
<a
href="https://doi.org/10.24433/CO.2373662.v1"
target="_blank">https://doi.org/10.24433/CO.2373662.v1</a>.</p></abstract>