disambiguate.h
1.77 KB
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
// See www.openfst.org for extensive documentation on this weighted
// finite-state transducer library.
#ifndef FST_SCRIPT_DISAMBIGUATE_H_
#define FST_SCRIPT_DISAMBIGUATE_H_
#include <tuple>
#include <utility>
#include <fst/disambiguate.h>
#include <fst/script/fst-class.h>
#include <fst/script/weight-class.h>
namespace fst {
namespace script {
struct DisambiguateOptions {
const float delta;
const WeightClass &weight_threshold;
const int64 state_threshold;
const int64 subsequential_label;
DisambiguateOptions(float delta, const WeightClass &weight_threshold,
int64 state_threshold = kNoStateId,
int64 subsequential_label = 0)
: delta(delta),
weight_threshold(weight_threshold),
state_threshold(state_threshold),
subsequential_label(subsequential_label) {}
};
using DisambiguateArgs = std::tuple<const FstClass &, MutableFstClass *,
const DisambiguateOptions &>;
template <class Arc>
void Disambiguate(DisambiguateArgs *args) {
using Weight = typename Arc::Weight;
const Fst<Arc> &ifst = *(std::get<0>(*args).GetFst<Arc>());
MutableFst<Arc> *ofst = std::get<1>(*args)->GetMutableFst<Arc>();
const auto &opts = std::get<2>(*args);
const auto weight_threshold = *(opts.weight_threshold.GetWeight<Weight>());
const fst::DisambiguateOptions<Arc> disargs(opts.delta, weight_threshold,
opts.state_threshold,
opts.subsequential_label);
Disambiguate(ifst, ofst, disargs);
}
void Disambiguate(const FstClass &ifst, MutableFstClass *ofst,
const DisambiguateOptions &opts);
} // namespace script
} // namespace fst
#endif // FST_SCRIPT_DISAMBIGUATE_H_