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/**
* Copyright (c) 2016-present, Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://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.
*/
#ifndef CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
#define CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
#include "caffe2/core/context.h"
#include "caffe2/core/operator.h"
namespace caffe2 {
// Converts each input element into either high_ or low_value
// based on the given threshold.
//
// out[i] = low_value if in[i] <= threshold else high_value
template <typename TIN, typename TOUT, class Context>
class StumpFuncOp final : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
template <class... Args>
explicit StumpFuncOp(Args&&... args)
: Operator<Context>(std::forward<Args>(args)...),
threshold_(this->template GetSingleArgument<TIN>("threshold", 0)),
low_value_(this->template GetSingleArgument<TOUT>("low_value", 0)),
high_value_(this->template GetSingleArgument<TOUT>("high_value", 0)) {}
bool RunOnDevice() override;
protected:
TIN threshold_;
TOUT low_value_;
TOUT high_value_;
// Input: label, output: weight
};
template <typename TIN, typename TOUT, class Context>
class StumpFuncIndexOp final : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
template <class... Args>
explicit StumpFuncIndexOp(Args&&... args)
: Operator<Context>(std::forward<Args>(args)...),
threshold_(this->template GetSingleArgument<TIN>("threshold", 0)) {}
bool RunOnDevice() override;
protected:
TIN threshold_;
// Input: label, output: indices
};
} // caffe2
#endif // CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
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