// Copyright 2004-present Facebook. All Rights Reserved.
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#ifndef CAFFE2_OPERATORS_WEIGHTEDSAMPLE_OP_H_
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#define CAFFE2_OPERATORS_WEIGHTEDSAMPLE_OP_H_
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#include "caffe2/core/context.h"
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#include "caffe2/core/operator.h"
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#include "caffe2/core/tensor.h"
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#include "caffe2/utils/math.h"
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namespace caffe2 {
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template <typename T, class Context>
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class WeightedSampleOp final : public Operator<Context> {
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public:
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template <class... Args>
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explicit WeightedSampleOp(Args&&... args)
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: Operator<Context>(std::forward<Args>(args)...) {}
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USE_OPERATOR_CONTEXT_FUNCTIONS;
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bool RunOnDevice() override;
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private:
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vector<float> cum_mass_;
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Tensor unif_samples_;
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};
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} // namespace caffe2
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#endif // CAFFE2_OPERATORS_WEIGHTEDSAMPLE_OP_H_
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