lattice-add-penalty.cc
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// latbin/lattice-add-penalty.cc
// Copyright 2013 Bagher BabaAli
// Johns Hopkins University (Author: Daniel Povey)
// See ../../COPYING for clarification regarding multiple authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing permissions and
// limitations under the License.
#include "lat/lattice-functions.h"
int main(int argc, char *argv[]) {
using namespace kaldi;
typedef kaldi::int64 int64;
try {
const char *usage =
"Add word insertion penalty to the lattice.\n"
"Note: penalties are negative log-probs, base e, and are added to the\n"
"'language model' part of the cost.\n"
"\n"
"Usage: lattice-add-penalty [options] <lattice-rspecifier> <lattice-wspecifier>\n"
" e.g.: lattice-add-penalty --word-ins-penalty=1.0 ark:- ark:-\n";
ParseOptions po(usage);
BaseFloat word_ins_penalty = 0.0;
po.Register("word-ins-penalty", &word_ins_penalty, "Word insertion penalty");
po.Read(argc, argv);
if (po.NumArgs() != 2) {
po.PrintUsage();
exit(1);
}
std::string lats_rspecifier = po.GetArg(1),
lats_wspecifier = po.GetArg(2);
SequentialCompactLatticeReader clat_reader(lats_rspecifier);
CompactLatticeWriter clat_writer(lats_wspecifier); // write as compact.
int64 n_done = 0;
for (; !clat_reader.Done(); clat_reader.Next()) {
CompactLattice clat(clat_reader.Value());
AddWordInsPenToCompactLattice(word_ins_penalty, &clat);
clat_writer.Write(clat_reader.Key(), clat);
n_done++;
}
KALDI_LOG << "Done adding word insertion penalty to " << n_done << " lattices.";
return (n_done != 0 ? 0 : 1);
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}