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Support CTC decoding for multi-zh_hans
recipe (#1313)
This commit is contained in:
parent
d76c3fe472
commit
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44
.github/scripts/run-multi-zh_hans-zipformer.sh
vendored
44
.github/scripts/run-multi-zh_hans-zipformer.sh
vendored
@ -10,6 +10,7 @@ log() {
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cd egs/multi_zh-hans/ASR
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log "==== Test icefall-asr-multi-zh-hans-zipformer-2023-9-2 ===="
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repo_url=https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-2023-9-2/
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log "Downloading pre-trained model from $repo_url"
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@ -49,3 +50,46 @@ for method in modified_beam_search fast_beam_search; do
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$repo/test_wavs/DEV_T0000000001.wav \
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$repo/test_wavs/DEV_T0000000002.wav
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done
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log "==== Test icefall-asr-multi-zh-hans-zipformer-ctc-2023-10-24 ===="
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repo_url=https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-ctc-2023-10-24/
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log "Downloading pre-trained model from $repo_url"
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git lfs install
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git clone $repo_url
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repo=$(basename $repo_url)
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log "Display test files"
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tree $repo/
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ls -lh $repo/test_wavs/*.wav
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pushd $repo/exp
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ln -s epoch-20.pt epoch-99.pt
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popd
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ls -lh $repo/exp/*.pt
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./zipformer/pretrained.py \
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--checkpoint $repo/exp/epoch-99.pt \
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--tokens $repo/data/lang_bpe_2000/tokens.txt \
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--use-ctc 1 \
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--method greedy_search \
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$repo/test_wavs/DEV_T0000000000.wav \
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$repo/test_wavs/DEV_T0000000001.wav \
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$repo/test_wavs/DEV_T0000000002.wav
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for method in modified_beam_search fast_beam_search; do
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log "$method"
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./zipformer/pretrained.py \
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--method $method \
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--beam-size 4 \
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--use-ctc 1 \
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--checkpoint $repo/exp/epoch-99.pt \
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--tokens $repo/data/lang_bpe_2000/tokens.txt \
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$repo/test_wavs/DEV_T0000000000.wav \
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$repo/test_wavs/DEV_T0000000001.wav \
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$repo/test_wavs/DEV_T0000000002.wav
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done
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@ -29,7 +29,7 @@ concurrency:
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jobs:
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run_multi-zh_hans_zipformer:
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if: github.event.label.name == 'onnx' || github.event.label.name == 'ready' || github.event_name == 'push' || github.event.label.name == 'multi-zh_hans'
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if: github.event.label.name == 'onnx' || github.event.label.name == 'ready' || github.event_name == 'push' || github.event.label.name == 'multi-zh_hans' || github.event.label.name == 'zipformer'
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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@ -4,6 +4,41 @@
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This is the [pull request #1238](https://github.com/k2-fsa/icefall/pull/1238) in icefall.
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#### Non-streaming (with CTC head)
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Best results (num of params : ~69M):
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The training command:
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```
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./zipformer/train.py \
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--world-size 4 \
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--num-epochs 20 \
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--use-fp16 1 \
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--max-duration 600 \
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--num-workers 8 \
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--use-ctc 1
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```
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The decoding command:
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```
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./zipformer/decode.py \
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--epoch 20 \
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--avg 1 \
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--use-ctc 1
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```
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Character Error Rates (CERs) listed below are produced by the checkpoint of the 20th epoch using BPE model ( # tokens is 2000, byte fallback enabled).
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| Datasets | aidatatang _200zh | aidatatang _200zh | alimeeting | alimeeting | aishell-1 | aishell-1 | aishell-2 | aishell-2 | aishell-4 | magicdata | magicdata | kespeech-asr | kespeech-asr | kespeech-asr | WenetSpeech | WenetSpeech | WenetSpeech |
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|--------------------------------|------------------------------|-------------|-------------------|--------------|----------------|-------------|------------------|-------------|------------------|------------------|-------------|-----------------------|-----------------------|-------------|--------------------|-------------------------|---------------------|
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| Zipformer CER (%) | dev | test | eval| test | dev | test | dev| test | test | dev| test | dev phase1 | dev phase2 | test | dev | test meeting | test net |
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| CTC Decoding | 14.57 | 15.26 | 72.85 | 69.70 | 12.87 | 13.76 | 23.56 | 25.55 | 71.75 | 22.35 | 19.34 | 42.38 | 26.90 | 48.71 | 64.88 | 67.29 | 54.24 |
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| Greedy Search | 3.36 | 3.83 | 23.90 | 25.18 | 2.77 | 3.08 | 3.70 | 4.04 | 16.13 | 3.77 | 3.15 | 6.88 | 3.14 | 8.08 | 9.04 | 7.19 | 8.17 |
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Pre-trained model can be found here : https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-ctc-2023-10-24/
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#### Non-streaming
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Best results (num of params : ~69M):
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@ -29,10 +64,10 @@ The decoding command:
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Character Error Rates (CERs) listed below are produced by the checkpoint of the 20th epoch using greedy search and BPE model ( # tokens is 2000, byte fallback enabled).
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| Datasets | aidatatang _200zh | aidatatang _200zh | alimeeting | alimeeting | aishell-1 | aishell-1 | aishell-2 | aishell-2 | aishell-4 | magicdata | magicdata | kespeech-asr | kespeech-asr | kespeech-asr | WenetSpeech | WenetSpeech | WenetSpeech |
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| Datasets | aidatatang _200zh | aidatatang _200zh | alimeeting | alimeeting | aishell-1 | aishell-1 | aishell-2 | aishell-2 | aishell-4 | magicdata | magicdata | kespeech-asr | kespeech-asr | kespeech-asr | WenetSpeech | WenetSpeech | WenetSpeech |
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|--------------------------------|------------------------------|-------------|-------------------|--------------|----------------|-------------|------------------|-------------|------------------|------------------|-------------|-----------------------|-----------------------|-------------|--------------------|-------------------------|---------------------|
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| Zipformer CER (%) | dev | test | eval | test | dev | test | dev | test | test | dev | test | dev phase1 | dev phase2 | test | dev | test meeting | test net |
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| | 3.2 | 3.67 | 23.15 | 24.78 | 2.91 | 3.04 | 3.59 | 4.03 | 15.68 | 3.68 | 3.12 | 6.69 | 3.19 | 8.01 | 9.32 | 7.05 | 8.78 |
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| Zipformer CER (%) | dev | test | eval| test | dev | test | dev| test | test | dev| test | dev phase1 | dev phase2 | test | dev | test meeting | test net |
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| Greedy Search | 3.2 | 3.67 | 23.15 | 24.78 | 2.91 | 3.04 | 3.59 | 4.03 | 15.68 | 3.68 | 3.12 | 6.69 | 3.19 | 8.01 | 9.32 | 7.05 | 8.78 |
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The pre-trained model is available here : https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-2023-9-2
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Pre-trained model can be found here : https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-2023-9-2/
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625
egs/multi_zh-hans/ASR/zipformer/ctc_decode.py
Executable file
625
egs/multi_zh-hans/ASR/zipformer/ctc_decode.py
Executable file
@ -0,0 +1,625 @@
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#!/usr/bin/env python3
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#
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# Copyright 2021-2022 Xiaomi Corporation (Author: Fangjun Kuang,
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# Liyong Guo,
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# Quandong Wang,
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# Zengwei Yao)
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#
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# See ../../../../LICENSE for clarification regarding multiple authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Usage:
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(1) ctc-decoding
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./zipformer/ctc_decode.py \
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--epoch 30 \
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--avg 15 \
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--exp-dir ./zipformer/exp \
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--max-duration 600 \
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--decoding-method ctc-decoding
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"""
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import argparse
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import logging
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import math
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from collections import defaultdict
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from pathlib import Path
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from typing import Dict, List, Optional, Tuple
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import k2
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import sentencepiece as spm
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import torch
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import torch.nn as nn
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from asr_datamodule import AsrDataModule
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from lhotse.cut import Cut
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from multi_dataset import MultiDataset
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from train import add_model_arguments, get_model, get_params
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from icefall.checkpoint import (
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average_checkpoints,
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average_checkpoints_with_averaged_model,
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find_checkpoints,
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load_checkpoint,
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)
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from icefall.decode import get_lattice, one_best_decoding
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from icefall.lexicon import Lexicon
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from icefall.utils import (
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AttributeDict,
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get_texts,
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setup_logger,
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store_transcripts,
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str2bool,
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write_error_stats,
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)
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LOG_EPS = math.log(1e-10)
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def get_parser():
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parser = argparse.ArgumentParser(
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formatter_class=argparse.ArgumentDefaultsHelpFormatter
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)
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parser.add_argument(
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"--epoch",
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type=int,
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default=30,
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help="""It specifies the checkpoint to use for decoding.
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Note: Epoch counts from 1.
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You can specify --avg to use more checkpoints for model averaging.""",
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)
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parser.add_argument(
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"--iter",
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type=int,
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default=0,
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help="""If positive, --epoch is ignored and it
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will use the checkpoint exp_dir/checkpoint-iter.pt.
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You can specify --avg to use more checkpoints for model averaging.
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""",
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)
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parser.add_argument(
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"--avg",
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type=int,
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default=15,
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help="Number of checkpoints to average. Automatically select "
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"consecutive checkpoints before the checkpoint specified by "
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"'--epoch' and '--iter'",
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)
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parser.add_argument(
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"--use-averaged-model",
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type=str2bool,
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default=True,
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help="Whether to load averaged model. Currently it only supports "
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"using --epoch. If True, it would decode with the averaged model "
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"over the epoch range from `epoch-avg` (excluded) to `epoch`."
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"Actually only the models with epoch number of `epoch-avg` and "
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"`epoch` are loaded for averaging. ",
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)
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parser.add_argument(
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"--exp-dir",
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type=str,
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default="zipformer/exp",
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help="The experiment dir",
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)
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parser.add_argument(
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"--bpe-model",
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type=str,
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default="data/lang_bpe_2000/bpe.model",
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help="Path to the BPE model",
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)
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parser.add_argument(
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"--lang-dir",
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type=Path,
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default="data/lang_bpe_2000",
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help="The lang dir containing word table and LG graph",
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)
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parser.add_argument(
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"--context-size",
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type=int,
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default=2,
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help="The context size in the decoder. 1 means bigram; 2 means tri-gram",
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)
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parser.add_argument(
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"--decoding-method",
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type=str,
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default="ctc-decoding",
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help="""Decoding method.
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Supported values are:
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- (1) ctc-decoding. Use CTC decoding. It uses a sentence piece
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model, i.e., lang_dir/bpe.model, to convert word pieces to words.
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It needs neither a lexicon nor an n-gram LM.
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""",
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)
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parser.add_argument(
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"--num-paths",
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type=int,
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default=100,
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help="""Number of paths for n-best based decoding method.
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Used only when "method" is one of the following values:
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nbest, nbest-rescoring, and nbest-oracle
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""",
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)
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parser.add_argument(
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"--nbest-scale",
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type=float,
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default=1.0,
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help="""The scale to be applied to `lattice.scores`.
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It's needed if you use any kinds of n-best based rescoring.
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Used only when "method" is one of the following values:
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nbest, nbest-rescoring, and nbest-oracle
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A smaller value results in more unique paths.
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""",
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)
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add_model_arguments(parser)
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return parser
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def get_decoding_params() -> AttributeDict:
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"""Parameters for decoding."""
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params = AttributeDict(
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{
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"frame_shift_ms": 10,
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"search_beam": 20,
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"output_beam": 8,
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"min_active_states": 30,
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"max_active_states": 10000,
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"use_double_scores": True,
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}
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)
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return params
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def decode_one_batch(
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params: AttributeDict,
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model: nn.Module,
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H: Optional[k2.Fsa],
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bpe_model: Optional[spm.SentencePieceProcessor],
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batch: dict,
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) -> Dict[str, List[List[str]]]:
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"""Decode one batch and return the result in a dict. The dict has the
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following format:
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- key: It indicates the setting used for decoding. For example,
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if no rescoring is used, the key is the string `no_rescore`.
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If LM rescoring is used, the key is the string `lm_scale_xxx`,
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where `xxx` is the value of `lm_scale`. An example key is
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`lm_scale_0.7`
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- value: It contains the decoding result. `len(value)` equals to
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batch size. `value[i]` is the decoding result for the i-th
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utterance in the given batch.
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Args:
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params:
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It's the return value of :func:`get_params`.
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- params.decoding_method is "1best", it uses 1best decoding without LM rescoring.
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- params.decoding_method is "nbest", it uses nbest decoding without LM rescoring.
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- params.decoding_method is "nbest-rescoring", it uses nbest LM rescoring.
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- params.decoding_method is "whole-lattice-rescoring", it uses whole lattice LM
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rescoring.
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model:
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The neural model.
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H:
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The ctc topo. Used only when params.decoding_method is ctc-decoding.
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bpe_model:
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The BPE model. Used only when params.decoding_method is ctc-decoding.
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batch:
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It is the return value from iterating
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`lhotse.dataset.K2SpeechRecognitionDataset`. See its documentation
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for the format of the `batch`.
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word_table:
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The word symbol table.
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G:
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An LM. It is not None when params.decoding_method is "nbest-rescoring"
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or "whole-lattice-rescoring". In general, the G in HLG
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is a 3-gram LM, while this G is a 4-gram LM.
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Returns:
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Return the decoding result. See above description for the format of
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the returned dict. Note: If it decodes to nothing, then return None.
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"""
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device = H.device
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feature = batch["inputs"]
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assert feature.ndim == 3
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feature = feature.to(device)
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# at entry, feature is (N, T, C)
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supervisions = batch["supervisions"]
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feature_lens = supervisions["num_frames"].to(device)
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if params.causal:
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# this seems to cause insertions at the end of the utterance if used with zipformer.
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pad_len = 30
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feature_lens += pad_len
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feature = torch.nn.functional.pad(
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feature,
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pad=(0, 0, 0, pad_len),
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value=LOG_EPS,
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)
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encoder_out, encoder_out_lens = model.forward_encoder(feature, feature_lens)
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ctc_output = model.ctc_output(encoder_out) # (N, T, C)
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supervision_segments = torch.stack(
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(
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supervisions["sequence_idx"],
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torch.div(
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supervisions["start_frame"],
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params.subsampling_factor,
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rounding_mode="floor",
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),
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torch.div(
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supervisions["num_frames"],
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params.subsampling_factor,
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rounding_mode="floor",
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),
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),
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1,
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).to(torch.int32)
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assert bpe_model is not None
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decoding_graph = H
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lattice = get_lattice(
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nnet_output=ctc_output,
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decoding_graph=decoding_graph,
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supervision_segments=supervision_segments,
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search_beam=params.search_beam,
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output_beam=params.output_beam,
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min_active_states=params.min_active_states,
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max_active_states=params.max_active_states,
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subsampling_factor=params.subsampling_factor,
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)
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if params.decoding_method == "ctc-decoding":
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best_path = one_best_decoding(
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lattice=lattice, use_double_scores=params.use_double_scores
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)
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# Note: `best_path.aux_labels` contains token IDs, not word IDs
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# since we are using H, not HLG here.
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#
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# token_ids is a lit-of-list of IDs
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token_ids = get_texts(best_path)
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# hyps is a list of str, e.g., ['xxx yyy zzz', ...]
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hyps = bpe_model.decode(token_ids)
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|
||||
# hyps is a list of list of str, e.g., [['xxx', 'yyy', 'zzz'], ... ]
|
||||
hyps = [s.split() for s in hyps]
|
||||
key = "ctc-decoding"
|
||||
return {key: hyps}
|
||||
|
||||
|
||||
def decode_dataset(
|
||||
dl: torch.utils.data.DataLoader,
|
||||
params: AttributeDict,
|
||||
model: nn.Module,
|
||||
HLG: Optional[k2.Fsa],
|
||||
H: Optional[k2.Fsa],
|
||||
bpe_model: Optional[spm.SentencePieceProcessor],
|
||||
word_table: k2.SymbolTable,
|
||||
G: Optional[k2.Fsa] = None,
|
||||
) -> Dict[str, List[Tuple[str, List[str], List[str]]]]:
|
||||
"""Decode dataset.
|
||||
|
||||
Args:
|
||||
dl:
|
||||
PyTorch's dataloader containing the dataset to decode.
|
||||
params:
|
||||
It is returned by :func:`get_params`.
|
||||
model:
|
||||
The neural model.
|
||||
HLG:
|
||||
The decoding graph. Used only when params.decoding_method is NOT ctc-decoding.
|
||||
H:
|
||||
The ctc topo. Used only when params.decoding_method is ctc-decoding.
|
||||
bpe_model:
|
||||
The BPE model. Used only when params.decoding_method is ctc-decoding.
|
||||
word_table:
|
||||
It is the word symbol table.
|
||||
G:
|
||||
An LM. It is not None when params.decoding_method is "nbest-rescoring"
|
||||
or "whole-lattice-rescoring". In general, the G in HLG
|
||||
is a 3-gram LM, while this G is a 4-gram LM.
|
||||
Returns:
|
||||
Return a dict, whose key may be "no-rescore" if no LM rescoring
|
||||
is used, or it may be "lm_scale_0.7" if LM rescoring is used.
|
||||
Its value is a list of tuples. Each tuple contains two elements:
|
||||
The first is the reference transcript, and the second is the
|
||||
predicted result.
|
||||
"""
|
||||
num_cuts = 0
|
||||
|
||||
try:
|
||||
num_batches = len(dl)
|
||||
except TypeError:
|
||||
num_batches = "?"
|
||||
|
||||
results = defaultdict(list)
|
||||
for batch_idx, batch in enumerate(dl):
|
||||
texts = batch["supervisions"]["text"]
|
||||
cut_ids = [cut.id for cut in batch["supervisions"]["cut"]]
|
||||
|
||||
hyps_dict = decode_one_batch(
|
||||
params=params,
|
||||
model=model,
|
||||
HLG=HLG,
|
||||
H=H,
|
||||
bpe_model=bpe_model,
|
||||
batch=batch,
|
||||
word_table=word_table,
|
||||
G=G,
|
||||
)
|
||||
|
||||
for name, hyps in hyps_dict.items():
|
||||
this_batch = []
|
||||
assert len(hyps) == len(texts)
|
||||
for cut_id, hyp_words, ref_text in zip(cut_ids, hyps, texts):
|
||||
ref_words = ref_text.split()
|
||||
this_batch.append((cut_id, ref_words, hyp_words))
|
||||
|
||||
results[name].extend(this_batch)
|
||||
|
||||
num_cuts += len(texts)
|
||||
|
||||
if batch_idx % 100 == 0:
|
||||
batch_str = f"{batch_idx}/{num_batches}"
|
||||
|
||||
logging.info(f"batch {batch_str}, cuts processed until now is {num_cuts}")
|
||||
return results
|
||||
|
||||
|
||||
def save_results(
|
||||
params: AttributeDict,
|
||||
test_set_name: str,
|
||||
results_dict: Dict[str, List[Tuple[str, List[str], List[str]]]],
|
||||
):
|
||||
test_set_wers = dict()
|
||||
for key, results in results_dict.items():
|
||||
recog_path = params.res_dir / f"recogs-{test_set_name}-{params.suffix}.txt"
|
||||
results = sorted(results)
|
||||
store_transcripts(filename=recog_path, texts=results)
|
||||
logging.info(f"The transcripts are stored in {recog_path}")
|
||||
|
||||
# The following prints out WERs, per-word error statistics and aligned
|
||||
# ref/hyp pairs.
|
||||
errs_filename = params.res_dir / f"errs-{test_set_name}-{params.suffix}.txt"
|
||||
with open(errs_filename, "w") as f:
|
||||
wer = write_error_stats(f, f"{test_set_name}-{key}", results)
|
||||
test_set_wers[key] = wer
|
||||
|
||||
logging.info("Wrote detailed error stats to {}".format(errs_filename))
|
||||
|
||||
test_set_wers = sorted(test_set_wers.items(), key=lambda x: x[1])
|
||||
errs_info = params.res_dir / f"wer-summary-{test_set_name}-{params.suffix}.txt"
|
||||
with open(errs_info, "w") as f:
|
||||
print("settings\tWER", file=f)
|
||||
for key, val in test_set_wers:
|
||||
print("{}\t{}".format(key, val), file=f)
|
||||
|
||||
s = "\nFor {}, WER of different settings are:\n".format(test_set_name)
|
||||
note = "\tbest for {}".format(test_set_name)
|
||||
for key, val in test_set_wers:
|
||||
s += "{}\t{}{}\n".format(key, val, note)
|
||||
note = ""
|
||||
logging.info(s)
|
||||
|
||||
|
||||
@torch.no_grad()
|
||||
def main():
|
||||
parser = get_parser()
|
||||
AsrDataModule.add_arguments(parser)
|
||||
args = parser.parse_args()
|
||||
args.exp_dir = Path(args.exp_dir)
|
||||
args.lang_dir = Path(args.lang_dir)
|
||||
|
||||
params = get_params()
|
||||
# add decoding params
|
||||
params.update(get_decoding_params())
|
||||
params.update(vars(args))
|
||||
|
||||
assert params.decoding_method in ("ctc-decoding",)
|
||||
params.res_dir = params.exp_dir / params.decoding_method
|
||||
|
||||
if params.iter > 0:
|
||||
params.suffix = f"iter-{params.iter}-avg-{params.avg}"
|
||||
else:
|
||||
params.suffix = f"epoch-{params.epoch}-avg-{params.avg}"
|
||||
|
||||
if params.causal:
|
||||
assert (
|
||||
"," not in params.chunk_size
|
||||
), "chunk_size should be one value in decoding."
|
||||
assert (
|
||||
"," not in params.left_context_frames
|
||||
), "left_context_frames should be one value in decoding."
|
||||
params.suffix += f"-chunk-{params.chunk_size}"
|
||||
params.suffix += f"-left-context-{params.left_context_frames}"
|
||||
|
||||
if params.use_averaged_model:
|
||||
params.suffix += "-use-averaged-model"
|
||||
|
||||
setup_logger(f"{params.res_dir}/log-decode-{params.suffix}")
|
||||
logging.info("Decoding started")
|
||||
|
||||
device = torch.device("cpu")
|
||||
if torch.cuda.is_available():
|
||||
device = torch.device("cuda", 0)
|
||||
|
||||
logging.info(f"Device: {device}")
|
||||
logging.info(params)
|
||||
|
||||
lexicon = Lexicon(params.lang_dir)
|
||||
max_token_id = max(lexicon.tokens)
|
||||
num_classes = max_token_id + 1 # +1 for the blank
|
||||
|
||||
params.vocab_size = num_classes
|
||||
# <blk> and <unk> are defined in local/train_bpe_model.py
|
||||
params.blank_id = 0
|
||||
|
||||
HLG = None
|
||||
H = k2.ctc_topo(
|
||||
max_token=max_token_id,
|
||||
modified=True,
|
||||
device=device,
|
||||
)
|
||||
bpe_model = spm.SentencePieceProcessor()
|
||||
bpe_model.load(str(params.lang_dir / "bpe.model"))
|
||||
|
||||
G = None
|
||||
logging.info("About to create model")
|
||||
model = get_model(params)
|
||||
|
||||
if not params.use_averaged_model:
|
||||
if params.iter > 0:
|
||||
filenames = find_checkpoints(params.exp_dir, iteration=-params.iter)[
|
||||
: params.avg
|
||||
]
|
||||
if len(filenames) == 0:
|
||||
raise ValueError(
|
||||
f"No checkpoints found for"
|
||||
f" --iter {params.iter}, --avg {params.avg}"
|
||||
)
|
||||
elif len(filenames) < params.avg:
|
||||
raise ValueError(
|
||||
f"Not enough checkpoints ({len(filenames)}) found for"
|
||||
f" --iter {params.iter}, --avg {params.avg}"
|
||||
)
|
||||
logging.info(f"averaging {filenames}")
|
||||
model.to(device)
|
||||
model.load_state_dict(average_checkpoints(filenames, device=device))
|
||||
elif params.avg == 1:
|
||||
load_checkpoint(f"{params.exp_dir}/epoch-{params.epoch}.pt", model)
|
||||
else:
|
||||
start = params.epoch - params.avg + 1
|
||||
filenames = []
|
||||
for i in range(start, params.epoch + 1):
|
||||
if i >= 1:
|
||||
filenames.append(f"{params.exp_dir}/epoch-{i}.pt")
|
||||
logging.info(f"averaging {filenames}")
|
||||
model.to(device)
|
||||
model.load_state_dict(average_checkpoints(filenames, device=device))
|
||||
else:
|
||||
if params.iter > 0:
|
||||
filenames = find_checkpoints(params.exp_dir, iteration=-params.iter)[
|
||||
: params.avg + 1
|
||||
]
|
||||
if len(filenames) == 0:
|
||||
raise ValueError(
|
||||
f"No checkpoints found for"
|
||||
f" --iter {params.iter}, --avg {params.avg}"
|
||||
)
|
||||
elif len(filenames) < params.avg + 1:
|
||||
raise ValueError(
|
||||
f"Not enough checkpoints ({len(filenames)}) found for"
|
||||
f" --iter {params.iter}, --avg {params.avg}"
|
||||
)
|
||||
filename_start = filenames[-1]
|
||||
filename_end = filenames[0]
|
||||
logging.info(
|
||||
"Calculating the averaged model over iteration checkpoints"
|
||||
f" from {filename_start} (excluded) to {filename_end}"
|
||||
)
|
||||
model.to(device)
|
||||
model.load_state_dict(
|
||||
average_checkpoints_with_averaged_model(
|
||||
filename_start=filename_start,
|
||||
filename_end=filename_end,
|
||||
device=device,
|
||||
)
|
||||
)
|
||||
else:
|
||||
assert params.avg > 0, params.avg
|
||||
start = params.epoch - params.avg
|
||||
assert start >= 1, start
|
||||
filename_start = f"{params.exp_dir}/epoch-{start}.pt"
|
||||
filename_end = f"{params.exp_dir}/epoch-{params.epoch}.pt"
|
||||
logging.info(
|
||||
f"Calculating the averaged model over epoch range from "
|
||||
f"{start} (excluded) to {params.epoch}"
|
||||
)
|
||||
model.to(device)
|
||||
model.load_state_dict(
|
||||
average_checkpoints_with_averaged_model(
|
||||
filename_start=filename_start,
|
||||
filename_end=filename_end,
|
||||
device=device,
|
||||
)
|
||||
)
|
||||
|
||||
model.to(device)
|
||||
model.eval()
|
||||
|
||||
num_param = sum([p.numel() for p in model.parameters()])
|
||||
logging.info(f"Number of model parameters: {num_param}")
|
||||
|
||||
# we need cut ids to display recognition results.
|
||||
args.return_cuts = True
|
||||
data_module = AsrDataModule(args)
|
||||
multi_dataset = MultiDataset(args.manifest_dir)
|
||||
|
||||
test_sets_cuts = multi_dataset.test_cuts()
|
||||
|
||||
def remove_short_utt(c: Cut):
|
||||
T = ((c.num_frames - 7) // 2 + 1) // 2
|
||||
if T <= 0:
|
||||
logging.warning(
|
||||
f"Excluding cut with ID: {c.id} from decoding, num_frames: {c.num_frames}"
|
||||
)
|
||||
return T > 0
|
||||
|
||||
test_sets = test_sets_cuts.keys()
|
||||
test_dl = [
|
||||
data_module.test_dataloaders(test_sets_cuts[cuts_name].filter(remove_short_utt))
|
||||
for cuts_name in test_sets
|
||||
]
|
||||
|
||||
for test_set, test_dl in zip(test_sets, test_dl):
|
||||
logging.info(f"Start decoding test set: {test_set}")
|
||||
|
||||
results_dict = decode_dataset(
|
||||
dl=test_dl,
|
||||
params=params,
|
||||
model=model,
|
||||
HLG=HLG,
|
||||
H=H,
|
||||
bpe_model=bpe_model,
|
||||
word_table=lexicon.word_table,
|
||||
G=G,
|
||||
)
|
||||
|
||||
save_results(
|
||||
params=params,
|
||||
test_set_name=test_set,
|
||||
results_dict=results_dict,
|
||||
)
|
||||
|
||||
logging.info("Done!")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
Loading…
x
Reference in New Issue
Block a user