stump_func_op.cc

#include "caffe2/operators/stump_func_op.h"

namespace caffe2 {

template <>
bool StumpFuncOp<float, float, CPUContext>::RunOnDevice() {
  auto& in = Input(0);
  const float* in_data = in.template data<float>();
  auto* out = Output(0);
  out->ResizeLike(in);
  float* out_data = out->template mutable_data<float>();
  for (int i = 0; i < in.size(); i++) {
    out_data[i] = (in_data[i] <= threshold_) ? low_value_ : high_value_;
  }
  return true;
}

REGISTER_CPU_OPERATOR(StumpFunc, StumpFuncOp<float, float, CPUContext>);

OPERATOR_SCHEMA(StumpFunc)
    .NumInputs(1)
    .NumOutputs(1)
    .Input(0, "X", "tensor of float")
    .Output(0, "Y", "tensor of float")
    .SetDoc(R"DOC(
Converts each input element into either high_ or low_value
based on the given threshold.
)DOC");

NO_GRADIENT(StumpFunc);

} // caffe2