shugeo fc3f5d4ffb
Shugeo exponential distribution infinities fix (#403)
* Fixed bound problem with Exponential distribution implementation.

Signed-off-by: shugeo <sgazeos@gmail.com>

* Added test for Exponential distribution to avoid infinities.

Signed-off-by: shugeo <sgazeos@gmail.com>

* Added a test for exponential distribution with 1M elements.

Signed-off-by: shugeo <sgazeos@gmail.com>

* Cosmetical changes only and tests.

Signed-off-by: shugeo <sgazeos@gmail.com>

* Modified test and implementation for exponential_distribution op.

Signed-off-by: shugeo <sgazeos@gmail.com>

Co-authored-by: raver119 <raver119@gmail.com>
2020-04-22 12:12:00 +03:00

57 lines
1.8 KiB
C++

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* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author raver119@gmail.com
//
#include <system/op_boilerplate.h>
#if NOT_EXCLUDED(OP_random_exponential)
#include <ops/declarable/headers/random.h>
#include <helpers/RandomLauncher.h>
namespace sd {
namespace ops {
CUSTOM_OP_IMPL(random_exponential, 1, 1, true, 1, 0) {
// random generator for distribution
auto rng = block.randomGenerator();
auto z = OUTPUT_VARIABLE(0);
auto lambda = T_ARG(0);
RandomLauncher::fillExponential(block.launchContext(), rng, z, lambda);
return Status::OK();
}
DECLARE_SHAPE_FN(random_exponential) {
auto in = INPUT_VARIABLE(0);
auto shape = in->template asVectorT<Nd4jLong>();
auto newShape = ConstantShapeHelper::getInstance()->createShapeInfo(block.dataType(), 'c', shape);
return SHAPELIST(newShape);
}
DECLARE_TYPES(random_exponential) {
getOpDescriptor()
->setAllowedInputTypes(sd::DataType::ANY)
->setAllowedOutputTypes({ALL_FLOATS});
}
}
}
#endif