def test_catboost_bin_classifier(self):
import onnxruntime
from distutils.version import StrictVersion
if StrictVersion(onnxruntime.__version__) >= StrictVersion('1.3.0'):
X, y = make_classification(n_samples=100,
n_features=4,
random_state=0)
catboost_model = catboost.CatBoostClassifier(
task_type='CPU',
loss_function='CrossEntropy',
n_estimators=10,
verbose=0)
catboost_model.fit(X.astype(numpy.float32), y)
catboost_onnx = convert_catboost(
catboost_model,
name='CatBoostBinClassification',
doc_string='test binary classification')
self.assertTrue(catboost_onnx is not None)
dump_data_and_model(X.astype(numpy.float32),
catboost_model,
catboost_onnx,
basename="CatBoostBinClass")
else:
warnings.warn(
'Converted CatBoost models for binary classification work with onnxruntime version 1.3.0 or '
'a newer one')
def test_catboost_regressor(self):
X, y = make_regression(n_samples=100, n_features=4, random_state=0)
catboost_model = catboost.CatBoostRegressor(task_type='CPU', loss_function='RMSE',
n_estimators=10, verbose=0)
dump_single_regression(catboost_model)
catboost_model.fit(X.astype(numpy.float32), y)
catboost_onnx = convert_catboost(catboost_model, name='CatBoostRegression',
doc_string='test regression')
self.assertTrue(catboost_onnx is not None)
dump_data_and_model(X.astype(numpy.float32), catboost_model, catboost_onnx, basename="CatBoostReg-Dec4")
def test_catboost_multi_classifier(self):
X, y = make_classification(n_samples=10, n_informative=8, n_classes=3, random_state=0)
catboost_model = catboost.CatBoostClassifier(task_type='CPU', loss_function='MultiClass',
n_estimators=100, verbose=0)
dump_multiple_classification(catboost_model)
catboost_model.fit(X.astype(numpy.float32), y)
catboost_onnx = convert_catboost(catboost_model, name='CatBoostMultiClassification',
doc_string='test multiclass classification')
self.assertTrue(catboost_onnx is not None)
dump_data_and_model(X.astype(numpy.float32), catboost_model, catboost_onnx, basename="CatBoostMultiClass")
def convert_model(model, name, input_types, without_onnx_ml=False, **kwargs):
"""
Runs the appropriate conversion method.
:param model: model
:return: *onnx* model
"""
from sklearn.base import BaseEstimator
if model.__class__.__name__.startswith("LGBM"):
from onnxmltools.convert import convert_lightgbm
model, prefix = convert_lightgbm(model,
name,
input_types,
without_onnx_ml=without_onnx_ml,
**kwargs), "LightGbm"
elif model.__class__.__name__.startswith("XGB"):
from onnxmltools.convert import convert_xgboost
model, prefix = convert_xgboost(model, name, input_types,
**kwargs), "XGB"
elif model.__class__.__name__ == 'Booster':
import lightgbm
if isinstance(model, lightgbm.Booster):
from onnxmltools.convert import convert_lightgbm
model, prefix = convert_lightgbm(model,
name,
input_types,
without_onnx_ml=without_onnx_ml,
**kwargs), "LightGbm"
else:
raise RuntimeError("Unable to convert model of type '{0}'.".format(
type(model)))
elif model.__class__.__name__.startswith("CatBoost"):
from onnxmltools.convert import convert_catboost
model, prefix = convert_catboost(model, name, input_types,
**kwargs), "CatBoost"
elif isinstance(model, BaseEstimator):
from onnxmltools.convert import convert_sklearn
model, prefix = convert_sklearn(model, name, input_types,
**kwargs), "Sklearn"
else:
from onnxmltools.convert import convert_coreml
model, prefix = convert_coreml(model, name, input_types,
**kwargs), "Cml"
if model is None:
raise RuntimeError("Unable to convert model of type '{0}'.".format(
type(model)))
return model, prefix