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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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9ee8cb42
编写于
8月 18, 2020
作者:
B
bryantclc
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电子邮件补丁
差异文件
delete old useless code
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fc69e540
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1
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Showing
1 changed file
with
1 addition
and
33 deletion
+1
-33
analysis/optimizer/weighted_ensemble_feature_selector.py
analysis/optimizer/weighted_ensemble_feature_selector.py
+1
-33
未找到文件。
analysis/optimizer/weighted_ensemble_feature_selector.py
浏览文件 @
9ee8cb42
...
...
@@ -81,38 +81,6 @@ class WeightedEnsembleFeatureSelector:
LOGGER
.
info
(
'Weighted Ensemble Feature Selector using: '
'DecisionTree, RandomForest, GradientBoosting, AdaBoost, Bagging'
)
@
staticmethod
def
get_unified_feature_importance
(
regressor
):
"""get unified feature importance"""
if
hasattr
(
regressor
,
"feature_importances_"
):
return
regressor
.
feature_importances_
if
hasattr
(
regressor
,
"coef_"
):
return
np
.
abs
(
regressor
.
coef_
)
if
hasattr
(
regressor
,
"estimators_features_"
):
feature_importances
=
np
.
mean
([
tree
.
feature_importances_
for
tree
in
regressor
.
estimators_
],
axis
=
0
)
return
feature_importances
return
None
def
get_one_native_feature_importance
(
self
,
regressor
,
list_sample_x
,
list_sample_y
,
labels
,
index
):
"""get one native feature importance, just fit data once"""
regressor
.
fit
(
list_sample_x
,
list_sample_y
)
unified_feature_importance
=
self
.
get_unified_feature_importance
(
regressor
)
result
=
zip
(
unified_feature_importance
,
labels
,
index
)
result
=
sorted
(
result
,
key
=
lambda
x
:
-
x
[
0
])
sorted_index
=
[
i
for
coef
,
label
,
i
in
result
]
return
sorted_index
def
get_native_feature_importances
(
self
,
list_sample_x
,
list_sample_y
,
labels
,
index
):
"""get natice feature importance"""
native_feature_importances
=
[]
for
regressor
in
self
.
_regressors
:
native_fi
=
self
.
get_one_native_feature_importance
(
regressor
,
list_sample_x
,
list_sample_y
,
labels
,
index
)
native_feature_importances
.
append
(
native_fi
)
return
native_feature_importances
def
get_native_feature_importances_parallel
(
self
,
list_sample_x
,
list_sample_y
,
labels
,
index
):
native_feature_importances
=
[]
fs_thread_list
=
[]
...
...
@@ -125,7 +93,7 @@ class WeightedEnsembleFeatureSelector:
for
fs_thread
in
fs_thread_list
:
native_fi
=
fs_thread
.
get_sorted_index
()
native_feature_importances
.
append
(
native_fi
)
return
n
v
tive_feature_importances
return
n
a
tive_feature_importances
def
get_ensemble_train_datas
(
self
,
list_sample_x
):
"""get ensemble train datas"""
...
...
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