def testHingeSoftnessZeroRaises(self):
with self.test_session():
bijector = Softplus(event_ndims=0,
hinge_softness=0.,
validate_args=True)
with self.assertRaisesOpError("must be non-zero"):
bijector.forward([1., 1.]).eval()
def testBijectorForwardInverseWithHingeSoftnessEventDimsZero(self):
with self.test_session():
bijector = Softplus(hinge_softness=1.5)
x = 2 * rng.randn(2, 10)
y = 1.5 * self._softplus(x / 1.5)
self.assertAllClose(y, bijector.forward(x).eval())
self.assertAllClose(x, bijector.inverse(y).eval())
def testBijectorForwardInverseWithHingeSoftnessEventDimsZero(self):
with self.test_session():
bijector = Softplus(event_ndims=0, hinge_softness=1.5)
x = 2 * rng.randn(2, 10)
y = 1.5 * self._softplus(x / 1.5)
self.assertAllClose(y, bijector.forward(x).eval())
self.assertAllClose(x, bijector.inverse(y).eval())
def testBijectorForwardInverseEventDimsOne(self):
with self.test_session():
bijector = Softplus()
self.assertEqual("softplus", bijector.name)
x = 2 * rng.randn(2, 10)
y = self._softplus(x)
self.assertAllClose(y, bijector.forward(x).eval())
self.assertAllClose(x, bijector.inverse(y).eval())
def testBijectorForwardInverseEventDimsOne(self):
with self.test_session():
bijector = Softplus(event_ndims=1)
self.assertEqual("softplus", bijector.name)
x = 2 * rng.randn(2, 10)
y = self._softplus(x)
self.assertAllClose(y, bijector.forward(x).eval())
self.assertAllClose(x, bijector.inverse(y).eval())
def testHingeSoftnessZeroRaises(self):
with self.test_session():
bijector = Softplus(event_ndims=0, hinge_softness=0., validate_args=True)
with self.assertRaisesOpError("must be non-zero"):
bijector.forward([1., 1.]).eval()