/**
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* Copyright (c) 2016-present, Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
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#define CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
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#include "caffe2/core/context.h"
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#include "caffe2/core/operator.h"
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namespace caffe2 {
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// Converts each input element into either high_ or low_value
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// based on the given threshold.
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//
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// out[i] = low_value if in[i] <= threshold else high_value
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template <typename TIN, typename TOUT, class Context>
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class StumpFuncOp final : public Operator<Context> {
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public:
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USE_OPERATOR_CONTEXT_FUNCTIONS;
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template <class... Args>
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explicit StumpFuncOp(Args&&... args)
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: Operator<Context>(std::forward<Args>(args)...),
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threshold_(this->template GetSingleArgument<TIN>("threshold", 0)),
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low_value_(this->template GetSingleArgument<TOUT>("low_value", 0)),
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high_value_(this->template GetSingleArgument<TOUT>("high_value", 0)) {}
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bool RunOnDevice() override;
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protected:
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TIN threshold_;
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TOUT low_value_;
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TOUT high_value_;
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// Input: label, output: weight
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};
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template <typename TIN, typename TOUT, class Context>
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class StumpFuncIndexOp final : public Operator<Context> {
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public:
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USE_OPERATOR_CONTEXT_FUNCTIONS;
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template <class... Args>
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explicit StumpFuncIndexOp(Args&&... args)
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: Operator<Context>(std::forward<Args>(args)...),
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threshold_(this->template GetSingleArgument<TIN>("threshold", 0)) {}
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bool RunOnDevice() override;
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protected:
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TIN threshold_;
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// Input: label, output: indices
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};
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} // caffe2
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#endif // CAFFE2_FB_OPERATORS_UTILITY_OPS_H_
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