1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
#ifndef CAFFE2_OPERATORS_CTC_BEAM_SEARCH_OP_H_
#define CAFFE2_OPERATORS_CTC_BEAM_SEARCH_OP_H_
#include "caffe2/core/context.h"
#include "caffe2/core/operator.h"
namespace caffe2 {
template <class Context>
class CTCBeamSearchDecoderOp : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
template <class... Args>
explicit CTCBeamSearchDecoderOp(Args&&... args)
: Operator<Context>(std::forward<Args>(args)...) {
beam_width_ = this->template GetSingleArgument<int32_t>("beam_width", 10);
num_candidates_ =
this->template GetSingleArgument<int32_t>("num_candidates", 1);
prune_threshold_ =
this->template GetSingleArgument<float>("prune_threshold", 0.001);
DCHECK(beam_width_ >= num_candidates_);
}
bool RunOnDevice() override;
protected:
int32_t beam_width_;
int32_t num_candidates_;
float prune_threshold_;
INPUT_TAGS(INPUTS, SEQ_LEN);
OUTPUT_TAGS(OUTPUT_LEN, VALUES, OUTPUT_PROB);
// Input: X, 3D tensor; L, 1D tensor. Output: Y sparse tensor
};
} // namespace caffe2
#endif // CAFFE2_OPERATORS_CTC_BEAM_SEARCH_OP_H_
|
