Add a new binary for chain e2e #3945
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danpovey
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Feb 20, 2020
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| // chainbin/chain-make-num-fst-e2e.cc | |||
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| // Copyright 2019 Johns Hopkins University (author: Yiwen Shao) | |||
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Just put Yiwen Shao as the author as you are not an employee (or if you have a part-time job with Hopkins, at least you are not doing this in that status)
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| namespace kaldi { | ||
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| bool FstTransitionToPdf(const fst::StdVectorFst &fst_transition, |
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I think it should be .. ToPdfPlusOne(), since these are pdf+1. Also I think this conflicts with your comment or commit message in which you say they are zero-based, these seem to be one-based.
| try { | ||
| const char *usage = | ||
| "Converts chain e2e numerator fst (containing transition-ids) to fst (containing pdf-ids, \n" | ||
| "zero-based, eps-removed, and normalized by the normalization fst) \n" |
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here is where it says zero-based. Also this doesn't remove epsilons, it just checks that there are no epsilons.. might be good to clarify. should say pdf-ids + 1.
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Thanks for the comments! I've made modifications according to it. |
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Add a new binary: chainbin/chain-make-num-fst-e2e
It is used to converts chain e2e numerator fst (containing transition-ids) to fst (containing pdf-ids,
zero-based, eps-removed, and normalized by the normalization fst).
This step is usually in prepare_egs stage while this binary would be necessary for other outside toolkits (e.g. pychain) that directly use fst instead of egs.