Network Computation in Neural Systems,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 25
Published: Oct. 21, 2024
The
increasing
volume
of
online
reviews
and
tweets
poses
significant
challenges
for
sentiment
classification
because
the
difficulty
in
obtaining
annotated
training
data.
This
paper
aims
to
enhance
Twitter
data
by
developing
a
robust
model
that
improves
accuracy
computational
efficiency.
proposed
method
named
Tree
Hierarchical
Deep
Convolutional
Neural
Network
optimized
with
Sheep
Flock
Optimization
Algorithm
Sentiment
Classification
Data
(SCTD-THDCNN-SFOA)
utilizes
Stanford
Treebank
dataset.
process
begins
pre-processing
steps
including
Tokenization,
Stop
words
Elimination,
Filtering,
Hashtag
Removal,
Multiword
Grouping.
Gray
Level
Co-occurrence
Matrix
Window
Adaptive
is
employed
extract
features,
such
as
emoticon
counts,
punctuation
gazetteer
word
existence,
n-grams,
part
speech
tags.
These
features
are
selected
using
Entropy–Kurtosis-based
Feature
Selection
approach.
Finally,
enhanced
used
categorize
positive,
negative,
neutral
sentiments.
SCTD-THDCNN-SFOA
demonstrates
superior
performance,
achieving
higher
lesser
computation
time
than
existing
models,
respectively.
framework
significantly
efficiency
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 25, 2025
Ozone
pollution
affects
food
production,
human
health,
and
the
lives
of
individuals.
Due
to
rapid
industrialization
urbanization,
Liaocheng
has
experienced
increasing
ozone
concentration
over
several
years.
Therefore,
become
a
major
environmental
problem
in
City.
Long
short-term
memory
(LSTM)
artificial
neural
network
(ANN)
models
are
established
predict
concentrations
City
from
2014
2023.
The
results
show
general
improvement
accuracy
LSTM
model
compared
ANN
model.
Compared
ANN,
an
increase
determination
coefficient
(R2),
value
0.6779
0.6939,
decrease
root
mean
square
error
(RMSE)
27.9895
μg/m3
27.2140
absolute
(MAE)
21.6919
20.8825
μg/m3.
prediction
is
superior
terms
R,
RMSE,
MAE.
In
summary,
promising
technique
for
predicting
concentrations.
Moreover,
by
leveraging
historical
data
enables
accurate
predictions
future
on
global
scale.
This
will
open
up
new
avenues
controlling
mitigating
pollution.
Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2870 - 2870
Published: Oct. 9, 2024
Climate
change
affects
the
water
cycle,
resource
management,
and
sustainable
socio-economic
development.
In
order
to
accurately
predict
climate
in
Weifang
City,
China,
this
study
utilizes
multiple
data-driven
deep
learning
models.
The
data
for
73
years
include
monthly
average
air
temperature
(MAAT),
minimum
(MAMINAT),
maximum
(MAMAXAT),
total
precipitation
(MP).
different
models
artificial
neural
network
(ANN),
recurrent
NN
(RNN),
gate
unit
(GRU),
long
short-term
memory
(LSTM),
convolutional
(CNN),
hybrid
CNN-GRU,
CNN-LSTM,
CNN-LSTM-GRU.
CNN-LSTM-GRU
MAAT
prediction
is
best-performing
model
compared
other
with
highest
correlation
coefficient
(R
=
0.9879)
lowest
root
mean
square
error
(RMSE
1.5347)
absolute
(MAE
1.1830).
These
results
indicate
that
method
a
suitable
model.
This
can
also
be
used
surface
modeling.
will
help
flood
control
management.
Toxics,
Journal Year:
2025,
Volume and Issue:
13(4), P. 254 - 254
Published: March 28, 2025
Surface
air
pollution
affects
ecosystems
and
people’s
health.
However,
traditional
models
have
low
prediction
accuracy.
Therefore,
a
hybrid
model
for
accurately
predicting
daily
surface
PM2.5
concentrations
was
integrated
with
wavelet
(W),
convolutional
neural
network
(CNN),
bidirectional
long
short-term
memory
(BiLSTM),
gated
recurrent
unit
(BiGRU).
The
data
meteorological
factors
pollutants
in
Guangzhou
City
from
2014
to
2020
were
utilized
as
inputs
the
models.
W-CNN-BiGRU-BiLSTM
demonstrated
strong
performance
during
phase,
achieving
an
R
(correlation
coefficient)
of
0.9952,
root
mean
square
error
(RMSE)
1.4935
μg/m3,
absolute
(MAE)
1.2091
percentage
(MAPE)
7.3782%.
Correspondingly,
accurate
is
beneficial
control
urban
planning.