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Copy pathdot-weights.cc
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83 lines (69 loc) · 2.86 KB
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// bin/dot-weights.cc
// Copyright 2009-2011 Chao Weng Microsoft Corporation
// 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"
int main(int argc, char *argv[]) {
try {
using namespace kaldi;
typedef kaldi::int32 int32;
const char *usage =
"Takes two archives of vectors (typically representing per-frame weights)\n"
"and for each utterance, outputs the dot product.\n"
"Useful for evaluating the accuracy of silence classifiers.\n"
"Usage: dot-weights <weights-rspecifier1> <weights-rspecifier2> <float-wspecifier>\n";
ParseOptions po(usage);
po.Read(argc, argv);
if (po.NumArgs() != 3) {
po.PrintUsage();
exit(1);
}
std::string weights1_rspecifier = po.GetArg(1),
weights2_rspecifier = po.GetArg(2),
float_wspecifier = po.GetArg(3);
kaldi::SequentialBaseFloatVectorReader weights1_reader(weights1_rspecifier);
kaldi::RandomAccessBaseFloatVectorReader weights2_reader(weights2_rspecifier);
kaldi::BaseFloatWriter float_writer(float_wspecifier);
int32 num_done = 0, num_err = 0;
for (; !weights1_reader.Done(); weights1_reader.Next()) {
std::string key = weights1_reader.Key();
const Vector<BaseFloat> &weights1 = weights1_reader.Value();
if (!weights2_reader.HasKey(key)) {
KALDI_WARN << "No weights for utterance " << key << " in second table.";
num_err++;
} else {
const Vector<BaseFloat> &weights2 = weights2_reader.Value(key);
// Next line will crash if different sizes. This is the
// behavior we want [for now].
if (weights1.Dim() != weights2.Dim()) {
KALDI_WARN << "Dimension mismatch for utterance " << key
<< " : " << weights1.Dim() << " vs. " << weights2.Dim();
num_err++;
continue;
}
BaseFloat dot = VecVec(weights1, weights2);
float_writer.Write(key, dot);
num_done++;
}
}
KALDI_LOG << "Done computing dot products of " << num_done
<< " weights; errors on " << num_err;
return (num_done != 0 ? 0 : 1);
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}