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src/nnet2bin/nnet-get-feature-transform-multi.cc
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// nnet2bin/nnet-get-feature-transform-multi.cc
// Copyright 2013 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 "base/kaldi-common.h"
#include "util/common-utils.h"
#include "nnet2/get-feature-transform.h"
int main(int argc, char *argv[]) {
using namespace kaldi;
typedef kaldi::int32 int32;
try {
const char *usage =
"Get feature-projection transform using stats obtained with acc-lda.
"
"The file <index-list> contains a series of line, each containing a list
"
"of integer indexes. For each line we create a transform of the same type
"
"as nnet-get-feature-transform would produce, taking as input just the
"
"listed feature dimensions. The output transform will be the concatenation
"
"of all these transforms. The output-dim will be the number of integers in
"
"the file <index-list> (the individual transforms are not dimension-reducing).
"
"Do not set the --dim option."
"Usage: nnet-get-feature-transform-multi [options] <index-list> <lda-acc-1> <lda-acc-2> ... <lda-acc-n> <matrix-out>
";
bool binary = true;
FeatureTransformEstimateOptions opts;
ParseOptions po(usage);
po.Register("binary", &binary, "Write accumulators in binary mode.");
opts.Register(&po);
po.Read(argc, argv);
if (po.NumArgs() < 2) {
po.PrintUsage();
exit(1);
}
FeatureTransformEstimateMulti fte;
std::string index_list_rxfilename = po.GetArg(1);
std::string projection_wxfilename = po.GetArg(po.NumArgs());
std::vector<std::vector<int32> > indexes;
{
Input ki(index_list_rxfilename);
std::string line;
while (getline(ki.Stream(), line)) {
std::vector<int32> this_indexes;
if (!SplitStringToIntegers(line, " \t
\r",
true, &this_indexes) ||
line.empty()) {
KALDI_ERR << "Bad line in index-list file: line is " << line;
}
indexes.push_back(this_indexes);
}
if (indexes.empty())
KALDI_ERR << "Empty index-list file "
<< PrintableRxfilename(index_list_rxfilename);
}
for (int32 i = 2; i < po.NumArgs(); i++) {
bool binary_in, add = true;
Input ki(po.GetArg(i), &binary_in);
fte.Read(ki.Stream(), binary_in, add);
}
Matrix<BaseFloat> mat;
fte.Estimate(opts, indexes, &mat);
WriteKaldiObject(mat, projection_wxfilename, binary);
KALDI_LOG << "Wrote transform to "
<< PrintableWxfilename(projection_wxfilename);
return 0;
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}
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