Coverage for mlprodict/onnxrt/ops_cpu/op_selu.py: 100%
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1# -*- encoding: utf-8 -*-
2# pylint: disable=E0203,E1101,C0111
3"""
4@file
5@brief Runtime operator.
6"""
7import numpy
8from ._op import OpRunUnaryNum
11class Selu(OpRunUnaryNum):
13 atts = {'alpha': 1.67326319217681884765625,
14 'gamma': 1.05070102214813232421875}
16 def __init__(self, onnx_node, desc=None, **options):
17 OpRunUnaryNum.__init__(self, onnx_node, desc=desc,
18 expected_attributes=Selu.atts,
19 **options)
21 def _run(self, x): # pylint: disable=W0221
22 return (numpy.where(x > 0, x * self.gamma,
23 numpy.exp(x) * self.alpha - self.alpha), )
25 def to_python(self, inputs):
26 return (
27 "import numpy",
28 ("return numpy.where({0} > 0, {0} * {1}, "
29 "numpy.exp({0}) * {2} - {2})").format(
30 inputs[0], self.gamma, self.alpha))