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src/ivectorbin/ivector-extractor-est.cc
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// ivectorbin/ivector-extractor-est.cc
// Copyright 2013 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 "util/common-utils.h"
#include "ivector/ivector-extractor.h"
#include "util/kaldi-thread.h"
int main(int argc, char *argv[]) {
try {
typedef kaldi::int32 int32;
using namespace kaldi;
const char *usage =
"Do model re-estimation of iVector extractor (this is
"
"the update phase of a single pass of E-M)
"
"Usage: ivector-extractor-est [options] <model-in> <stats-in> <model-out>
";
bool binary = true;
IvectorExtractorEstimationOptions update_opts;
kaldi::ParseOptions po(usage);
po.Register("binary", &binary, "Write output in binary mode");
po.Register("num-threads", &g_num_threads,
"Number of threads used in update");
update_opts.Register(&po);
po.Read(argc, argv);
if (po.NumArgs() != 3) {
po.PrintUsage();
exit(1);
}
std::string model_rxfilename = po.GetArg(1),
stats_rxfilename = po.GetArg(2),
model_wxfilename = po.GetArg(3);
KALDI_LOG << "Reading model";
IvectorExtractor extractor;
ReadKaldiObject(model_rxfilename, &extractor);
KALDI_LOG << "Reading statistics";
IvectorExtractorStats stats;
ReadKaldiObject(stats_rxfilename, &stats);
stats.Update(update_opts, &extractor);
WriteKaldiObject(extractor, model_wxfilename, binary);
stats.IvectorVarianceDiagnostic(extractor);
KALDI_LOG << "Updated model and wrote it to "
<< model_wxfilename;
return 0;
} catch(const std::exception &e) {
std::cerr << e.what() << '
';
return -1;
}
}
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