Spaces:
Configuration error
Configuration error
File size: 6,861 Bytes
b7f4dbe |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 |
import os
import logging
import librosa
import wandb
import numpy as np
from datasets import DatasetDict, load_dataset, load_metric
from transformers import (
HubertForSequenceClassification,
PretrainedConfig,
Trainer,
TrainingArguments,
Wav2Vec2FeatureExtractor,
)
from utils import collator
logging.basicConfig(
format="%(asctime)s | %(levelname)s: %(message)s", level=logging.INFO
)
PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
NUM_LABELS = 6
USER = "XXXX" # TODO: replace with your username
WANDB_PROJECT = "XXXXX" # TODO: replace with your project name
wandb.init(entity=USER, project=WANDB_PROJECT)
# PROCESS THE DATASET TO THE FORMAT EXPECTED BY THE MODEL FOR TRAINING
PreTrainedFeatureExtractor = "SequenceFeatureExtractor" # noqa: F821
INPUT_FIELD = "input_values"
LABEL_FIELD = "labels"
def prepare_dataset(batch, feature_extractor: PreTrainedFeatureExtractor):
audio_arr = batch["array"]
input = feature_extractor(
audio_arr, sampling_rate=16000, padding=True, return_tensors="pt"
)
batch[INPUT_FIELD] = input.input_values[0]
batch[LABEL_FIELD] = batch[
"label"
] # colname MUST be labels as Trainer will look for it by default
return batch
model_id = "facebook/hubert-base-ls960"
MODELS_DIR = os.path.join(PROJECT_ROOT, "models")
extractor_path = (
model_id
if len(os.listdir(MODELS_DIR)) == 0
else os.path.join(MODELS_DIR, "feature_extractor")
)
model_path = (
model_id
if len(os.listdir(MODELS_DIR)) == 0
else os.path.join(MODELS_DIR, "pretrained_model")
)
feature_extractor = Wav2Vec2FeatureExtractor.from_pretrained(extractor_path)
config = PretrainedConfig.from_pretrained(model_path, num_labels=NUM_LABELS)
hubert_model = HubertForSequenceClassification.from_pretrained(
model_path,
config=config, # because we need to update num_labels as per our dataset
ignore_mismatched_sizes=True, # to avoid classifier size mismatch from from_pretrained.
)
# FREEZE LAYERS
# freeze all layers to begin with
for param in hubert_model.parameters():
param.requires_grad = False
layers_freeze_num = 2
n_layers = (
4 + layers_freeze_num * 16
) # 4 refers to projector and classifier's weights and biases.
for name, param in list(hubert_model.named_parameters())[-n_layers:]:
param.requires_grad = True
# # freeze model weights for all layers except projector and classifier
# for name, param in hubert_model.named_parameters():
# if any(ext in name for ext in ["projector", "classifier"]):
# param.requires_grad = True
trainer_config = {
"OUTPUT_DIR": "results",
"TRAIN_EPOCHS": 5,
"TRAIN_BATCH_SIZE": 32,
"EVAL_BATCH_SIZE": 32,
"GRADIENT_ACCUMULATION_STEPS": 4,
"WARMUP_STEPS": 500,
"DECAY": 0.01,
"LOGGING_STEPS": 10,
"MODEL_DIR": "models/audio-model",
"LR": 1e-3,
}
dataset_config = {
"LOADING_SCRIPT_FILES": os.path.join(PROJECT_ROOT, "src/data/crema.py"),
"CONFIG_NAME": "clean",
"DATA_DIR": os.path.join(PROJECT_ROOT, "data/archive.zip"),
"CACHE_DIR": os.path.join(PROJECT_ROOT, "cache_crema"),
}
ds = load_dataset(
dataset_config["LOADING_SCRIPT_FILES"],
dataset_config["CONFIG_NAME"],
cache_dir=dataset_config["CACHE_DIR"],
data_dir=dataset_config["DATA_DIR"],
)
# CONVERING RAW AUDIO TO ARRAYS
ds = ds.map(
lambda x: {"array": librosa.load(x["file"], sr=16000, mono=False)[0]},
num_proc=2,
)
# LABEL TO ID
ds = ds.class_encode_column("label")
# ds["train"] = ds["train"].select(range(2500))
wandb.log({"dataset_size": len(ds["train"])})
# APPLY THE DATA PREP USING FEATURE EXTRACTOR TO ALL EXAMPLES
ds = ds.map(
prepare_dataset,
fn_kwargs={"feature_extractor": feature_extractor},
# num_proc=4,
)
logging.info("Finished extracting features from audio arrays.")
# INTRODUCE TRAIN TEST VAL SPLITS
# 90% train, 10% test + validation
train_testvalid = ds["train"].train_test_split(shuffle=True, test_size=0.1)
# Split the 10% test + valid in half test, half valid
test_valid = train_testvalid["test"].train_test_split(test_size=0.5)
# gather everyone if you want to have a single DatasetDict
ds = DatasetDict(
{
"train": train_testvalid["train"],
"test": test_valid["test"],
"val": test_valid["train"],
}
)
# DEFINE DATA COLLATOR - TO PAD TRAINING BATCHES DYNAMICALLY
data_collator = collator.DataCollatorCTCWithPadding(
processor=feature_extractor, padding=True
)
# Fine-Tuning with Trainer
training_args = TrainingArguments(
output_dir=os.path.join(
PROJECT_ROOT, trainer_config["OUTPUT_DIR"]
), # output directory
gradient_accumulation_steps=trainer_config[
"GRADIENT_ACCUMULATION_STEPS"
], # accumulate the gradients before running optimization step
num_train_epochs=trainer_config["TRAIN_EPOCHS"], # total number of training epochs
per_device_train_batch_size=trainer_config[
"TRAIN_BATCH_SIZE"
], # batch size per device during training
per_device_eval_batch_size=trainer_config[
"EVAL_BATCH_SIZE"
], # batch size for evaluation
warmup_steps=trainer_config[
"WARMUP_STEPS"
], # number of warmup steps for learning rate scheduler
weight_decay=trainer_config["DECAY"], # strength of weight decay
logging_steps=trainer_config["LOGGING_STEPS"],
evaluation_strategy="epoch", # report metric at end of each epoch
report_to="wandb", # enable logging to W&B
learning_rate=trainer_config["LR"], # default = 5e-5
)
def compute_metrics(eval_pred):
# DEFINE EVALUATION METRIC
compute_accuracy_metric = load_metric("accuracy")
logits, labels = eval_pred
predictions = np.argmax(logits, axis=-1)
return compute_accuracy_metric.compute(predictions=predictions, references=labels)
# START TRAINING
trainer = Trainer(
model=hubert_model, # the instantiated 🤗 Transformers model to be trained
args=training_args, # training arguments, defined above
data_collator=data_collator,
train_dataset=ds["train"], # training dataset
eval_dataset=ds["val"], # evaluation dataset
compute_metrics=compute_metrics,
)
trainer.train()
# TO RESUME TRAINING FROM CHECKPOINT
# trainer.train("results/checkpoint-2000")
# VALIDATION SET RESULTS
logging.info("Eval Set Result: {}".format(trainer.evaluate()))
# TEST RESULTS
test_results = trainer.predict(ds["test"])
logging.info("Test Set Result: {}".format(test_results.metrics))
wandb.log({"test_accuracy": test_results.metrics["test_accuracy"]})
trainer.save_model(os.path.join(PROJECT_ROOT, trainer_config["MODEL_DIR"]))
# logging trained models to wandb
wandb.save(
os.path.join(PROJECT_ROOT, trainer_config["MODEL_DIR"], "*"),
base_path=os.path.dirname(trainer_config["MODEL_DIR"]),
policy="end",
)
|