E3S Web of Conferences,
Год журнала:
2023,
Номер
379, С. 01001 - 01001
Опубликована: Янв. 1, 2023
PM
2.5
is
a
typical
air
pollutant
which
has
harmful
health
effects
worldwide,
particularly
in
the
developing
countries
such
as
China
due
to
significant
pollution.
The
objectives
of
this
study
were
investigate
spatio-temporal
pattern
concentration
Jiangsu
Province,
China.
data
collected
from
72
monitoring
stations
between
2018-21
and
HYSPLIT
model
was
used
transport
pathways
masses.
According
obtained
results,
obvious
during
duration.
results
show
that
constantly
decreased
2018
2021,
while
level
higher
winter
lower
summer
Jiangsu.
backward
trajectory
analysis
revealed
trajectories
originated
Siberia,
Russia
passed
thorough
Mongolia
northwestern
parts
then
reached
at
spot.
These
masses
played
role
aerosol
pathway
affect
quality
Advances in computational intelligence and robotics book series,
Год журнала:
2025,
Номер
unknown, С. 181 - 222
Опубликована: Март 7, 2025
The
chapter
is
a
review
of
techniques
in
deep
leaning
for
tasks
such
as
classification
and
clustering.
Basically,
due
to
the
discussion
two
main
topics
learning,
divided
into
parts,
one
discussing
clustering
methods
first
basic
understanding
method
made
then
moving
towards
autoencoder
based
architectures
that
includes
variational
autoencoders
(VAE),
k-means
with
autoencoders,
self-organizing
maps,
spectral
DBSCAN.
other
part
focused
on
methods,
where
architecture
convolutional
neural
network
(CNN)
discussed,
proceeding
ResNet,
DenseNet
EfficientNet,
little
touch
transformer-based
CNN
these
vision
transformers
capsule
networks
are
mentioned.
A
comparison
both
i.e.,
will
make
it
clearer
how
different
from
another.
Advances in computational intelligence and robotics book series,
Год журнала:
2025,
Номер
unknown, С. 145 - 180
Опубликована: Март 7, 2025
The
chapter
gives
an
overview
of
the
applications
deep
learning
and
image
processing
in
different
industries
medicine,
automobiles,
entertainment,
security.
Multiple
advanced
techniques
such
as
CNN,
GAN,
ViT
that
have
become
handy
analysis
processing.
From
medical
diagnostics
to
autonomous
vehicles,
environmental
monitoring,
surveillance,
its
show
impact
on
accuracy
efficiency.
It
also
discusses
critical
ethical
issues,
data
privacy,
model
biases,
energy
consumption,
points
out
some
possible
solutions
reduce
those
effects.
In
general,
this
contribution
provides
a
advances
related
by
potential
for
further
innovative
developments
wide
range
applications.
Horticulturae,
Год журнала:
2023,
Номер
9(8), С. 853 - 853
Опубликована: Июль 26, 2023
Greenhouses
are
essential
for
agricultural
production
in
unfavorable
climates.
Accurate
temperature
predictions
critical
controlling
Heating,
Ventilation,
Air-Conditioning,
and
Dehumidification
(HVACD)
lighting
systems
to
optimize
plant
growth
reduce
financial
losses.
In
this
study,
several
machine
models
were
employed
predict
indoor
air
an
even-span
Mediterranean
greenhouse.
Radial
Basis
Function
(RBF),
Support
Vector
Machine
(SVM),
Gaussian
Process
Regression
(GPR)
applied
using
external
parameters
such
as
outside
air,
relative
humidity,
wind
speed,
solar
radiation.
The
results
showed
that
RBF
model
with
the
LM
learning
algorithm
outperformed
SVM
GPR
models.
had
high
accuracy
reliability
RMSE
of
0.82
°C,
MAPE
1.21%,
TSSE
474.07
EF
1.00.
prediction
can
help
farmers
manage
their
crops
resources
efficiently
energy
inefficiencies
lower
yields.
integration
into
greenhouse
control
lead
significant
savings
cost
reductions.
World Journal of Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 23, 2024
Purpose
Emissions
have
significant
environmental
impacts.
Hence,
minimizing
emissions
is
essential.
This
study
aims
to
use
a
hybrid
neural
network
model
predict
carbon
monoxide
(CO)
and
nitrogen
oxide
(NOx)
from
gas
turbines
(GTs)
enhance
emission
prediction
for
GTs
in
predictive
monitoring
systems
(PEMS).
Design/methodology/approach
The
architecture
combines
convolutional
networks
(CNN)
bidirectional
long-short-term
memory
(Bi-LSTM)
called
CNN-BiLSTM
with
modified
extrinsic
attention
regression.
Over
five
years,
data
GT
power
plant
was
uploaded
Google
Colab,
split
into
training
testing
sets
(80:20),
evaluated
using
test
matrices.
model’s
performance
benchmarked
against
state-of-the-art
methodologies.
Findings
showed
promising
results
CO
NOx
emissions.
predictions
had
slight
underestimation
bias
of
−0.01,
root
mean-squared
error
(RMSE)
0.064,
mean
absolute
(MAE)
0.04
R
2
0.82.
an
RMSE
0.051,
MAE
0.036,
0.887
overestimation
+0.01.
Research
limitations/implications
While
the
demonstrates
relative
accuracy
predictions,
there
potential
further
improvement
future
research.
Practical
implications
Implementing
real-time
PEMS
establishing
continuous
feedback
loop
will
ensure
real-world
applications,
functioning
reduce
emissions,
fuel
consumption
running
costs.
Social
Accurate
support
stricter
standards,
promote
sustainable
development
goals
healthier
societal
environment.
Originality/value
paper
presents
novel
approach
that
integrates
CNN
Bi-LSTM
networks.
It
considers
both
spatial
temporal
mitigate
previous
shortcomings.
Atmosphere,
Год журнала:
2023,
Номер
14(9), С. 1392 - 1392
Опубликована: Сен. 3, 2023
Prolonged
exposure
to
high
concentrations
of
suspended
particulate
matter
(SPM),
especially
aerodynamic
fine
that
is
≤2.5
μm
in
diameter
(PM2.5),
can
cause
serious
harm
human
health
and
life
via
the
induction
respiratory
diseases
lung
cancer.
Therefore,
accurate
prediction
PM2.5
important
for
management
governmental
environmental
decisions.
However,
time-series
processing
concentration
based
only
on
a
single
region
special
time
period
less
explanatory,
thus,
spatial-temporal
applicability
model
more
restricted.
To
address
this
problem,
paper
constructs
optimization
Convolutional
Neural
Networks-Long
Short-Term
Memory
(CNN-LSTM).
Hourly
data
atmospheric
pollutants,
meteorological
parameters,
Precipitable
Water
Vapor
(PWV)
10
cities
Beijing-Tianjin-Hebei
metropolitan
area
during
1–30
September
2021/2022
were
used
as
training
set,
1–7
October
validation.
The
experimental
results
show
CNN-LSTM
optimizes
average
root
mean
square
error
(RMSE)
by
25.52%
14.30%,
absolute
(MAE)
26.23%
15.01%,
percentage
(MAPE)
35.64%
16.98%,
compared
widely
Back
Propagation
Network
(BPNN)
Long
(LSTM)
models.
In
summary,
superior
terms
has
highest
accuracy
area.
study
provide
reference
relevant
departments
predict
its
trend
specific
periods.
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
Abstract
Human-induced
global
warming,
primarily
attributed
to
the
rise
in
atmospheric
CO2,
poses
a
substantial
risk
survival
of
humanity.
While
most
research
focuses
on
predicting
annual
CO2
emissions,
which
are
crucial
for
setting
long-term
emission
mitigation
targets,
precise
prediction
daily
emissions
is
equally
vital
short-term
targets.
This
study
examines
performance
14
models
data
from
1/1/2022
30/9/2023
across
top
four
polluting
regions
(China,
USA,
India,
and
EU27&UK).
The
used
comprise
statistical
(ARMA,
ARIMA,
SARMA,
SARIMA),
three
machine
learning
(Support
Vector
Machine
-
SVM,
Random
Forest
RF,
Gradient
Boosting
GB),
seven
deep
(Artificial
Neural
Network
ANN,
Recurrent
variations
such
as
Gated
Unit
GRU,
Long
Short-Term
Memory
LSTM,
Bidirectional-LSTM
BILSTM,
hybrid
combinations
CNN-RNN).
Performance
evaluation
employs
metrics
(R2,
MAE,
RMSE,
MAPE).
results
show
that
(ML)
(DL)
models,
with
higher
R2
(0.714–0.932)
l
ower
RMSE
(0.480
−
0.247)
values,
respectively,
outperformed
model,
had
(-0.060–0.719)
(1.695
0.537)
all
regions.
ML
DL
was
further
enhanced
by
differencing,
technique
improves
accuracy
ensuring
stationarity
creating
additional
features
patterns
model
can
learn
from.
Additionally,
applying
ensemble
techniques
bagging
voting
improved
about
9.6%,
while
CNN-RNN
RNN
models.
In
summary,
both
relatively
similar.
However,
due
high
computational
requirements
associated
recommended
using
bagging.
assist
accurately
forecasting
aiding
authorities
targets
reduction.