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conditional caption dropout (in progress)

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Kohya S
2023-02-07 22:28:56 +09:00
parent f9478f0d47
commit e42b2f7aa9
5 changed files with 40 additions and 28 deletions
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35
library/train_util.py
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@@ -113,7 +113,7 @@ class BucketManager():
# 規定サイズから選ぶ場合の解像度、aspect ratioの情報を格納しておく
self.predefined_resos = resos.copy()
self.predefined_resos_set = set(resos)
self.predifined_aspect_ratios = np.array([w / h for w, h in resos])
self.predefined_aspect_ratios = np.array([w / h for w, h in resos])
def add_if_new_reso(self, reso):
if reso not in self.reso_to_id:
@@ -135,7 +135,7 @@ class BucketManager():
if reso in self.predefined_resos_set:
pass
else:
ar_errors = self.predifined_aspect_ratios - aspect_ratio
ar_errors = self.predefined_aspect_ratios - aspect_ratio
predefined_bucket_id = np.abs(ar_errors).argmin() # 当該解像度以外でaspect ratio errorが最も少ないもの
reso = self.predefined_resos[predefined_bucket_id]
@@ -223,9 +223,10 @@ class BaseDataset(torch.utils.data.Dataset):
self.tokenizer_max_length = self.tokenizer.model_max_length if max_token_length is None else max_token_length + 2
self.epoch_current:int = int(0)
self.dropout_rate:float = 0
self.dropout_every_n_epochs:int = 0
# TODO 外から渡したほうが安心だが自動で計算したほうが呼ぶ側に余分なコードがいらないのでよさそう
self.epoch_current: int = int(0)
self.dropout_rate: float = 0
self.dropout_every_n_epochs: int = None
# augmentation
flip_p = 0.5 if flip_aug else 0.0
@@ -251,6 +252,12 @@ class BaseDataset(torch.utils.data.Dataset):
self.replacements = {}
def set_caption_dropout(self, dropout_rate, dropout_every_n_epochs):
# 将来的にタグのドロップアウトも対応したいのでメソッドを生やしておく
# コンストラクタで渡さないのはTextual Inversionで意識したくないから（ということにしておく）
self.dropout_rate = dropout_rate
self.dropout_every_n_epochs = dropout_every_n_epochs
def set_tag_frequency(self, dir_name, captions):
frequency_for_dir = self.tag_frequency.get(dir_name, {})
self.tag_frequency[dir_name] = frequency_for_dir
@@ -604,9 +611,9 @@ class BaseDataset(torch.utils.data.Dataset):
# dropoutの決定
is_drop_out = False
if self.dropout_rate > 0 and self.dropout_rate < random.random() :
if self.dropout_rate > 0 and random.random() < self.dropout_rate:
is_drop_out = True
if self.dropout_every_n_epochs > 0 and self.epoch_current % self.dropout_every_n_epochs == 0 :
if self.dropout_every_n_epochs and self.epoch_current % self.dropout_every_n_epochs == 0:
is_drop_out = True
if is_drop_out:
@@ -1391,7 +1398,7 @@ def verify_training_args(args: argparse.Namespace):
print("v2 with clip_skip will be unexpected / v2でclip_skipを使用することは想定されていません")
def add_dataset_arguments(parser: argparse.ArgumentParser, support_dreambooth: bool, support_caption: bool):
def add_dataset_arguments(parser: argparse.ArgumentParser, support_dreambooth: bool, support_caption: bool, support_caption_dropout: bool):
# dataset common
parser.add_argument("--train_data_dir", type=str, default=None, help="directory for train images / 学習画像データのディレクトリ")
parser.add_argument("--shuffle_caption", action="store_true",
@@ -1421,10 +1428,14 @@ def add_dataset_arguments(parser: argparse.ArgumentParser, support_dreambooth: b
help="steps of resolution for buckets, divisible by 8 is recommended / bucketの解像度の単位、8で割り切れる値を推奨します")
parser.add_argument("--bucket_no_upscale", action="store_true",
help="make bucket for each image without upscaling / 画像を拡大せずbucketを作成します")
parser.add_argument("--dropout_rate", type=float, default=0,
help="Rate out dropout caption(0.0~1.0) / captionをdropoutする割合")
parser.add_argument("--dropout_every_n_epochs", type=int, default=0,
help="Dropout all captions every N epochs / captionを指定エポックごとにdropoutする")
if support_caption_dropout:
# Textual Inversion はcaptionのdropoutをsupportしない
# いわゆるtensorのDropoutと紛らわしいのでprefixにcaptionを付けておく　every_n_epochsは他と平仄を合わせてdefault Noneに
parser.add_argument("--caption_dropout_rate", type=float, default=0,
help="Rate out dropout caption(0.0~1.0) / captionをdropoutする割合")
parser.add_argument("--caption_dropout_every_n_epochs", type=int, default=None,
help="Dropout all captions every N epochs / captionを指定エポックごとにdropoutする")
if support_dreambooth:
# DreamBooth dataset