Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 11, 2023
Abstract
It
remains
a
challenging
problem
to
classify
the
incomplete
patterns
with
randomly
missing
values.
In
some
applications,
it
is
difficult
for
us
collect
complete
attributes
of
target
due
complex
sensing
environment,
and
observed
are
all
more
or
less
order
well
such
patterns,
we
propose
new
classification
method
based
on
evidence
combination.
Because
considered
attribute
values,
hard
accurately
estimate
values
object
classify.
We
using
each
available
respectively.
The
K-nearest
neighbors
(K-NN)
found
in
training
data
space
according
attribute,
K
Basic
belief
assignments
(BBA)
constructed
corresponding
K-NN.
BBA
reflects
degree
belonging
class.
Then
two
step
combination
strategy
developed
combining
BBA's.
BBA's
associated
same
class
combined
by
classical
DS
rule
at
first.
When
K-NN
belong
different
classes,
previous
results
classes
may
highly
conflict,
they
further
PCR5
rule,
which
can
manage
high
conflict
via
proper
conflicting
masses
redistribution.
other
one
similar
way.
multiple
collected,
weighted
employed
fuse
these
results.
weighting
factors
optimized
minimizing
an
error
criterion.
finally
classified
depending
this
result.
Experimental
various
sets
show
effectiveness
proposed
comparing
related
methods.
International Journal of Biometeorology,
Journal Year:
2024,
Volume and Issue:
68(7), P. 1327 - 1342
Published: April 24, 2024
Thermal
indices
and
thermal
comfort
maps
have
great
importance
in
developing
health-minded
climate
action
strategies
livable
urban
layouts.
Especially
cities
where
vulnerability
to
heatwaves
is
high,
it
necessary
detect
the
most
appropriate
indicators
for
regional
characteristics
planning
with
respect
comfort.
The
aim
of
study
examine
as
by
relating
meteorological
parameters
spatial
features.
Atmospheric
variables
including
air
temperature,
wind
speed,
cloud
cover,
relative
humidity
data
were
obtained
from
30
stations
located
districts
having
different
climatic
Heat
stress
levels
apparent
temperature
(AT),
heat
index
(HI),
wet
bulb
globe
(WBGT),
physiological
equivalent
(PET),
universal
(UTCI),
perceived
(PT)
calculated
associated
parameters.
been
created
daily
mean
maximum
values
all
indices.
As
a
result,
strongest
correlation
are
(T
Structural Equation Modeling A Multidisciplinary Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 32
Published: Jan. 6, 2025
Heterogeneity
of
variance
is
more
than
a
statistical
nuisance
when
parameters
are
substantial
interest.
In
multilevel
modeling
(e.g.
students
within
classes),
for
instance,
the
inclusion
discrete
variables
at
between-cluster
level
school
type)
may
lead
to
detection
differences
between
variances
within-cluster
students'
performance
in
test).
The
resulting
heterogeneous
lower
high
schools
compared
grammar
schools)
have
potential
inform
research
and
practice
on
educational
effectiveness).
Along
lines
'people
too',
we
demonstrate
how
single-level
formulation
structural
equation
models,
wide
format
approach
(Barendse
&
Rosseel,
Citation2020;
Mehta
Neale,
Citation2005),
can
be
used
combination
with
multigroup
order
obtain
estimates.
We
provide
evidence
proposed
WFmultigroup
approaches'
accuracy
by
means
simulation
study
showcase
its
application
an
empirical
illustration
lavaan
package
R.
Journal of Computational Science,
Journal Year:
2024,
Volume and Issue:
78, P. 102269 - 102269
Published: March 24, 2024
Missing
data
is
an
issue
that
can
negatively
impact
any
task
performed
with
the
available
and
it
often
found
in
real-world
domains
such
as
healthcare.
One
of
most
common
strategies
to
address
this
perform
imputation,
where
missing
values
are
replaced
by
estimates.
Several
approaches
based
on
statistics
machine
learning
techniques
have
been
proposed
for
purpose,
including
deep
architectures
generative
adversarial
networks
autoencoders.
In
work,
we
propose
a
novel
siamese
neural
network
suitable
which
call
Siamese
Autoencoder-based
Approach
Imputation
(SAEI).
Besides
having
autoencoder
architecture,
SAEI
also
has
custom
loss
function
triplet
mining
strategy
tailored
issue.
The
approach
compared
seven
state-of-the-art
imputation
methods
experimental
setup
comprises
14
heterogeneous
datasets
healthcare
domain
injected
Not
At
Random
at
rate
between
10%
60%.
results
show
significantly
outperforms
all
remaining
experimented
settings,
achieving
average
improvement
35%.
This
work
extension
article
Autoencoder-Based
Data
(Pereira,
et
al.
2023)
presented
International
Conference
Computational
Science
2023.
It
includes
new
experiments
focused
runtime,
generalization
capabilities,
classification
tasks,
method
induces
best
results,
improving
F1
scores
50%
used
datasets.
ACM Transactions on Knowledge Discovery from Data,
Journal Year:
2024,
Volume and Issue:
18(7), P. 1 - 18
Published: April 8, 2024
In
this
article,
we
study
the
problem
of
computing
Random
Forest-distances
in
presence
missing
data.
We
present
a
general
framework
which
avoids
pre-imputation
and
uses
an
agnostic
way
information
contained
input
points.
centre
our
investigation
on
RatioRF,
RF-based
distance
recently
introduced
context
clustering
shown
to
outperform
most
known
measures.
also
show
that
same
can
be
applied
several
other
state-of-the-art
measures
provide
their
extensions
data
case.
significant
empirical
evidence
effectiveness
proposed
framework,
showing
extensive
experiments
with
RatioRF
15
datasets.
Finally,
positively
compare
method
many
alternative
literature
distances,
computed
values.