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# -------------------------------------------------------- | |
# Based on the timm code base | |
# https://github.com/huggingface/pytorch-image-models | |
# -------------------------------------------------------- | |
from .registry import is_model_in_modules, model_entrypoint | |
def split_model_name(model_name): | |
model_split = model_name.split(':', 1) | |
if len(model_split) == 1: | |
return '', model_split[0] | |
else: | |
source_name, model_name = model_split | |
assert source_name in ('timm', 'hf_hub') | |
return source_name, model_name | |
def safe_model_name(model_name, remove_source=True): | |
def make_safe(name): | |
return ''.join(c if c.isalnum() else '_' for c in name).rstrip('_') | |
if remove_source: | |
model_name = split_model_name(model_name)[-1] | |
return make_safe(model_name) | |
def create_model( | |
model_name, | |
pretrained=False, | |
checkpoint_path='', | |
scriptable=None, | |
exportable=None, | |
no_jit=None, | |
**kwargs): | |
"""Create a model | |
Args: | |
model_name (str): name of model to instantiate | |
pretrained (bool): load pretrained ImageNet-1k weights if true | |
checkpoint_path (str): path of checkpoint to load after model is initialized | |
scriptable (bool): set layer config so that model is jit scriptable (not working for all models yet) | |
exportable (bool): set layer config so that model is traceable / ONNX exportable (not fully impl/obeyed yet) | |
no_jit (bool): set layer config so that model doesn't utilize jit scripted layers (so far activations only) | |
Keyword Args: | |
drop_rate (float): dropout rate for training (default: 0.0) | |
global_pool (str): global pool type (default: 'avg') | |
**: other kwargs are model specific | |
""" | |
source_name, model_name = split_model_name(model_name) | |
# Only EfficientNet and MobileNetV3 models have support for batchnorm params or drop_connect_rate passed as args | |
is_efficientnet = is_model_in_modules(model_name, ['efficientnet', 'mobilenetv3']) | |
if not is_efficientnet: | |
kwargs.pop('bn_tf', None) | |
kwargs.pop('bn_momentum', None) | |
kwargs.pop('bn_eps', None) | |
# handle backwards compat with drop_connect -> drop_path change | |
drop_connect_rate = kwargs.pop('drop_connect_rate', None) | |
if drop_connect_rate is not None and kwargs.get('drop_path_rate', None) is None: | |
print("WARNING: 'drop_connect' as an argument is deprecated, please use 'drop_path'." | |
" Setting drop_path to %f." % drop_connect_rate) | |
kwargs['drop_path_rate'] = drop_connect_rate | |
# Parameters that aren't supported by all models or are intended to only override model defaults if set | |
# should default to None in command line args/cfg. Remove them if they are present and not set so that | |
# non-supporting models don't break and default args remain in effect. | |
kwargs = {k: v for k, v in kwargs.items()} | |
create_fn = model_entrypoint(model_name) | |
model = create_fn(**kwargs) | |
return model | |