Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Март 3, 2023
Abstract
Extracting
useful
features
at
multiple
scales
is
a
crucial
task
in
computer
vision.
The
emergence
of
deep-learning
techniques
and
the
advancements
convolutional
neural
networks
(CNNs)
have
facilitated
effective
multiscale
feature
extraction
that
results
stable
performance
improvements
numerous
real-life
applications.
However,
currently
available
state-of-the-art
methods
primarily
rely
on
parallel
approach,
despite
exhibiting
competitive
accuracy,
models
lead
to
poor
efficient
computation
low
generalization
small-scale
images.
Moreover,
lightweight
cannot
appropriately
learn
features,
this
causes
underfitting
when
training
with
images
or
datasets
limited
number
samples.
To
address
these
problems,
we
propose
novel
image
classification
system
based
elaborate
data
preprocessing
steps
carefully
designed
CNN
model
architecture.
Specifically,
present
consecutive
feature-learning
network
(CMSFL-Net)
employs
approach
usage
various
maps
different
receptive
fields
achieve
faster
training/inference
higher
accuracy.
In
conducted
experiments
using
six
datasets,
including
small-scale,
large-scale,
data,
CMSFL-Net
exhibits
an
accuracy
comparable
those
existing
networks.
proposed
outperforms
them
terms
efficiency
speed
achieves
best
accuracy-efficiency
trade-off.
IEEE Transactions on Knowledge and Data Engineering,
Год журнала:
2023,
Номер
36(10), С. 5388 - 5408
Опубликована: Ноя. 23, 2023
With
recent
advances
in
sensing
technologies,
a
myriad
of
spatio-temporal
data
has
been
generated
and
recorded
smart
cities.
Forecasting
the
evolution
patterns
is
an
important
yet
demanding
aspect
urban
computing,
which
can
enhance
intelligent
management
decisions
various
fields,
including
transportation,
environment,
climate,
public
safety,
healthcare,
others.
Traditional
statistical
deep
learning
methods
struggle
to
capture
complex
correlations
data.
To
this
end,
Spatio-Temporal
Graph
Neural
Networks
(STGNN)
have
proposed,
achieving
great
promise
years.
STGNNs
enable
extraction
dependencies
by
integrating
graph
neural
networks
(GNNs)
temporal
methods.
In
manuscript,
we
provide
comprehensive
survey
on
progress
STGNN
technologies
for
predictive
computing.
Firstly,
brief
introduction
construction
prevalent
deep-learning
architectures
used
STGNNs.
We
then
sort
out
primary
application
domains
specific
tasks
based
existing
literature.
Afterward,
scrutinize
design
their
combination
with
some
advanced
Finally,
conclude
limitations
research
suggest
potential
directions
future
work.
Multimedia Tools and Applications,
Год журнала:
2022,
Номер
82(11), С. 16591 - 16633
Опубликована: Сен. 28, 2022
Optimization
algorithms
are
used
to
improve
model
accuracy.
The
optimization
process
undergoes
multiple
cycles
until
convergence.
A
variety
of
strategies
have
been
developed
overcome
the
obstacles
involved
in
learning
process.
Some
these
considered
this
study
learn
more
about
their
complexities.
It
is
crucial
analyse
and
summarise
techniques
methodically
from
a
machine
standpoint
since
can
provide
direction
for
future
work
both
optimization.
approaches
under
consideration
include
Stochastic
Gradient
Descent
(SGD),
with
Momentum,
Rung
Kutta,
Adaptive
Learning
Rate,
Root
Mean
Square
Propagation,
Moment
Estimation,
Deep
Ensembles,
Feedback
Alignment,
Direct
Adfactor,
AMSGrad,
Gravity.
prove
ability
each
optimizer
applied
models.
Firstly,
tests
on
skin
cancer
using
ISIC
standard
dataset
detection
were
three
common
optimizers
(Adaptive
Moment,
SGD,
Propagation)
explore
effect
images.
optimal
training
results
analysis
indicate
that
performance
values
enhanced
Adam
optimizer,
which
achieved
97.30%
second
COVIDx
CT
images,
99.07%
accuracy
based
optimizer.
result
indicated
utilisation
such
as
SGD
improved
training,
testing,
validation
stages.
Alexandria Engineering Journal,
Год журнала:
2024,
Номер
93, С. 128 - 141
Опубликована: Март 16, 2024
The
impact
of
air
pollution
on
public
health
is
substantial,
and
accurate
long-term
predictions
quality
are
crucial
for
early
warning
systems
to
address
this
issue.
Air
prediction
has
drawn
significant
attention,
bridging
environmental
science,
statistics,
computer
science.
This
paper
presents
a
comprehensive
review
the
current
research
status
advances
in
methods.
Deep
learning,
novel
machine
learning
approach,
demonstrated
remarkable
proficiency
identifying
complex,
nonlinear
patterns
data,
yet
its
application
still
relatively
nascent.
also
conducts
systematic
analysis
summarizes
how
cutting-edge
deep
models
applied
prediction.
Initially,
historical
evolution
methods
datasets
presented.
followed
by
an
examination
conventional
techniques.
A
thorough
comparative
progress
made
with
both
traditional
learning-based
provided.
particularly
focuses
three
aspects:
temporal
modeling,
spatiotemporal
attention
mechanisms.
Finally,
emerging
trends
field
identified
discussed.
Journal of Electrical Systems and Information Technology,
Год журнала:
2023,
Номер
10(1)
Опубликована: Ноя. 27, 2023
Abstract
Accident
detection
and
public
traffic
safety
is
a
crucial
aspect
of
safe
better
community.
Monitoring
flow
in
smart
cities
using
different
surveillance
cameras
plays
role
recognizing
accidents
alerting
first
responders.
In
computer
vision
tasks,
utilizing
action
recognition
(AR)
has
contributed
to
high-precision
video
surveillance,
medical
imaging,
digital
signal
processing
applications.
This
paper
presents
an
intensive
review
focusing
on
accident
autonomous
transportation
systems
for
city.
focused
AR
that
use
diverse
sources
video,
such
as
static
intersections,
highway
monitoring
cameras,
drone
dash-cams.
Through
this
review,
we
identified
the
primary
techniques,
taxonomies,
algorithms
used
detection.
We
also
examined
datasets
utilized
identifying
features
datasets.
provides
potential
research
direction
develop
integrate
cars
by
emergency
personnel
law
enforcement
event
road
minimize
human
error
reporting
provide
spontaneous
response
victims.
Multimedia Tools and Applications,
Год журнала:
2023,
Номер
82(30), С. 47733 - 47749
Опубликована: Май 11, 2023
Abstract
Human
activity
recognition
(HAR)
is
a
challenging
issue
in
several
fields,
such
as
medical
diagnosis.
Recent
advances
the
accuracy
of
deep
learning
have
contributed
to
solving
HAR
issues.
Thus,
it
necessary
implement
algorithms
that
high
performance
and
greater
accuracy.
In
this
paper,
gated
recurrent
unit
(GRU)
algorithm
proposed
classify
human
activities.
This
applied
Wireless
Sensor
Data
Mining
(WISDM)
dataset
gathered
from
many
individuals
with
six
classes
various
activities
–
walking,
sitting,
downstairs,
jogging,
standing,
upstairs.
The
tested
trained
via
hyper-parameter
tuning
method
TensorFlow
framework
achieve
Experiments
are
conducted
evaluate
GRU
using
receiver
operating
characteristic
(ROC)
curves
confusion
matrices.
results
demonstrate
provides
achieves
testing
97.08%.
rate
loss
for
0.221,
while
precision,
sensitivity,
F1-score
97.11%,
97.09%,
97.10%,
respectively.
Experimentally,
area
under
ROC
(AUC
S
)
100%.