""" PyTorch EfficientNet Family
An implementation of EfficienNet that covers variety of related models with efficient architectures:
* EfficientNet (B0-B8 + Tensorflow pretrained AutoAug/RandAug/AdvProp weight ports)
- EfficientNet: Rethinking Model Scaling for CNNs - https://arxiv.org/abs/1905.11946
- CondConv: Conditionally Parameterized Convolutions for Efficient Inference - https://arxiv.org/abs/1904.04971
- Adversarial Examples Improve Image Recognition - https://arxiv.org/abs/1911.09665
* MixNet (Small, Medium, and Large)
- MixConv: Mixed Depthwise Convolutional Kernels - https://arxiv.org/abs/1907.09595
* MNasNet B1, A1 (SE), Small
- MnasNet: Platform-Aware Neural Architecture Search for Mobile - https://arxiv.org/abs/1807.11626
* FBNet-C
- FBNet: Hardware-Aware Efficient ConvNet Design via Differentiable NAS - https://arxiv.org/abs/1812.03443
* Single-Path NAS Pixel1
- Single-Path NAS: Designing Hardware-Efficient ConvNets - https://arxiv.org/abs/1904.02877
* And likely more...
Hacked together by Ross Wightman
"""
from .efficientnet_builder import *
from .feature_hooks import FeatureHooks
from .registry import register_model
from .helpers import load_pretrained
from .adaptive_avgmax_pool import SelectAdaptivePool2d
from .conv2d_layers import select_conv2d
from timm.data import IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STD, IMAGENET_INCEPTION_MEAN, IMAGENET_INCEPTION_STD
__all__ = ['EfficientNet']
def _cfg(url='', **kwargs):
return {
'url': url, 'num_classes': 1000, 'input_size': (3, 224, 224), 'pool_size': (7, 7),
'crop_pct': 0.875, 'interpolation': 'bicubic',
'mean': IMAGENET_DEFAULT_MEAN, 'std': IMAGENET_DEFAULT_STD,
'first_conv': 'conv_stem', 'classifier': 'classifier',
**kwargs
}
default_cfgs = {
'mnasnet_050': _cfg(url=''),
'mnasnet_075': _cfg(url=''),
'mnasnet_100': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mnasnet_b1-74cb7081.pth'),
'mnasnet_140': _cfg(url=''),
'semnasnet_050': _cfg(url=''),
'semnasnet_075': _cfg(url=''),
'semnasnet_100': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mnasnet_a1-d9418771.pth'),
'semnasnet_140': _cfg(url=''),
'mnasnet_small': _cfg(url=''),
'mobilenetv2_100': _cfg(url=''),
'fbnetc_100': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/fbnetc_100-c345b898.pth',
interpolation='bilinear'),
'spnasnet_100': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/spnasnet_100-048bc3f4.pth',
interpolation='bilinear'),
'efficientnet_b0': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b0_ra-3dd342df.pth'),
'efficientnet_b1': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b1-533bc792.pth',
input_size=(3, 240, 240), pool_size=(8, 8)),
'efficientnet_b2': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b2_ra-bcdf34b7.pth',
input_size=(3, 260, 260), pool_size=(9, 9)),
'efficientnet_b2a': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b2_ra-bcdf34b7.pth',
input_size=(3, 288, 288), pool_size=(9, 9), crop_pct=1.0),
'efficientnet_b3': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b3_ra-a5e2fbc7.pth',
input_size=(3, 300, 300), pool_size=(10, 10), crop_pct=0.904),
'efficientnet_b3a': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/efficientnet_b3_ra-a5e2fbc7.pth',
input_size=(3, 320, 320), pool_size=(10, 10), crop_pct=1.0),
'efficientnet_b4': _cfg(
url='', input_size=(3, 380, 380), pool_size=(12, 12), crop_pct=0.922),
'efficientnet_b5': _cfg(
url='', input_size=(3, 456, 456), pool_size=(15, 15), crop_pct=0.934),
'efficientnet_b6': _cfg(
url='', input_size=(3, 528, 528), pool_size=(17, 17), crop_pct=0.942),
'efficientnet_b7': _cfg(
url='', input_size=(3, 600, 600), pool_size=(19, 19), crop_pct=0.949),
'efficientnet_b8': _cfg(
url='', input_size=(3, 672, 672), pool_size=(21, 21), crop_pct=0.954),
'efficientnet_es': _cfg(
url=''),
'efficientnet_em': _cfg(
url='', input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'efficientnet_el': _cfg(
url='', input_size=(3, 300, 300), pool_size=(10, 10), crop_pct=0.904),
'efficientnet_cc_b0_4e': _cfg(url=''),
'efficientnet_cc_b0_8e': _cfg(url=''),
'efficientnet_cc_b1_8e': _cfg(url='', input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'tf_efficientnet_b0': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b0_aa-827b6e33.pth',
input_size=(3, 224, 224)),
'tf_efficientnet_b1': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b1_aa-ea7a6ee0.pth',
input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'tf_efficientnet_b2': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b2_aa-60c94f97.pth',
input_size=(3, 260, 260), pool_size=(9, 9), crop_pct=0.890),
'tf_efficientnet_b3': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b3_aa-84b4657e.pth',
input_size=(3, 300, 300), pool_size=(10, 10), crop_pct=0.904),
'tf_efficientnet_b4': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b4_aa-818f208c.pth',
input_size=(3, 380, 380), pool_size=(12, 12), crop_pct=0.922),
'tf_efficientnet_b5': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b5_ra-9a3e5369.pth',
input_size=(3, 456, 456), pool_size=(15, 15), crop_pct=0.934),
'tf_efficientnet_b6': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b6_aa-80ba17e4.pth',
input_size=(3, 528, 528), pool_size=(17, 17), crop_pct=0.942),
'tf_efficientnet_b7': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b7_ra-6c08e654.pth',
input_size=(3, 600, 600), pool_size=(19, 19), crop_pct=0.949),
'tf_efficientnet_b8': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b8_ra-572d5dd9.pth',
input_size=(3, 672, 672), pool_size=(21, 21), crop_pct=0.954),
'tf_efficientnet_b0_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b0_ap-f262efe1.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD, input_size=(3, 224, 224)),
'tf_efficientnet_b1_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b1_ap-44ef0a3d.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'tf_efficientnet_b2_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b2_ap-2f8e7636.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 260, 260), pool_size=(9, 9), crop_pct=0.890),
'tf_efficientnet_b3_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b3_ap-aad25bdd.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 300, 300), pool_size=(10, 10), crop_pct=0.904),
'tf_efficientnet_b4_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b4_ap-dedb23e6.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 380, 380), pool_size=(12, 12), crop_pct=0.922),
'tf_efficientnet_b5_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b5_ap-9e82fae8.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 456, 456), pool_size=(15, 15), crop_pct=0.934),
'tf_efficientnet_b6_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b6_ap-4ffb161f.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 528, 528), pool_size=(17, 17), crop_pct=0.942),
'tf_efficientnet_b7_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b7_ap-ddb28fec.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 600, 600), pool_size=(19, 19), crop_pct=0.949),
'tf_efficientnet_b8_ap': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_b8_ap-00e169fa.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 672, 672), pool_size=(21, 21), crop_pct=0.954),
'tf_efficientnet_es': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_es-ca1afbfe.pth',
mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5),
input_size=(3, 224, 224), ),
'tf_efficientnet_em': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_em-e78cfe58.pth',
mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5),
input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'tf_efficientnet_el': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_el-5143854e.pth',
mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5),
input_size=(3, 300, 300), pool_size=(10, 10), crop_pct=0.904),
'tf_efficientnet_cc_b0_4e': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_cc_b0_4e-4362b6b2.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD),
'tf_efficientnet_cc_b0_8e': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_cc_b0_8e-66184a25.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD),
'tf_efficientnet_cc_b1_8e': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_efficientnet_cc_b1_8e-f7c79ae1.pth',
mean=IMAGENET_INCEPTION_MEAN, std=IMAGENET_INCEPTION_STD,
input_size=(3, 240, 240), pool_size=(8, 8), crop_pct=0.882),
'mixnet_s': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mixnet_s-a907afbc.pth'),
'mixnet_m': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mixnet_m-4647fc68.pth'),
'mixnet_l': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mixnet_l-5a9a2ed8.pth'),
'mixnet_xl': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/mixnet_xl_ra-aac3c00c.pth'),
'mixnet_xxl': _cfg(),
'tf_mixnet_s': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_mixnet_s-89d3354b.pth'),
'tf_mixnet_m': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_mixnet_m-0f4d8805.pth'),
'tf_mixnet_l': _cfg(
url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/tf_mixnet_l-6c92e0c8.pth'),
}
_DEBUG = False
class EfficientNet(nn.Module):
""" (Generic) EfficientNet
A flexible and performant PyTorch implementation of efficient network architectures, including:
* EfficientNet B0-B8
* EfficientNet-EdgeTPU
* EfficientNet-CondConv
* MixNet S, M, L, XL
* MnasNet A1, B1, and small
* FBNet C
* Single-Path NAS Pixel1
"""
def __init__(self, block_args, num_classes=1000, num_features=1280, in_chans=3, stem_size=32,
channel_multiplier=1.0, channel_divisor=8, channel_min=None,
pad_type='', act_layer=nn.ReLU, drop_rate=0., drop_connect_rate=0.,
se_kwargs=None, norm_layer=nn.BatchNorm2d, norm_kwargs=None, global_pool='avg'):
super(EfficientNet, self).__init__()
norm_kwargs = norm_kwargs or {}
self.num_classes = num_classes
self.num_features = num_features
self.drop_rate = drop_rate
self._in_chs = in_chans
# Stem
stem_size = round_channels(stem_size, channel_multiplier, channel_divisor, channel_min)
self.conv_stem = select_conv2d(self._in_chs, stem_size, 3, stride=2, padding=pad_type)
self.bn1 = norm_layer(stem_size, **norm_kwargs)
self.act1 = act_layer(inplace=True)
self._in_chs = stem_size
# Middle stages (IR/ER/DS Blocks)
builder = EfficientNetBuilder(
channel_multiplier, channel_divisor, channel_min, 32, pad_type, act_layer, se_kwargs,
norm_layer, norm_kwargs, drop_connect_rate, verbose=_DEBUG)
self.blocks = nn.Sequential(*builder(self._in_chs, block_args))
self.feature_info = builder.features
self._in_chs = builder.in_chs
# Head + Pooling
self.conv_head = select_conv2d(self._in_chs, self.num_features, 1, padding=pad_type)
self.bn2 = norm_layer(self.num_features, **norm_kwargs)
self.act2 = act_layer(inplace=True)
self.global_pool = SelectAdaptivePool2d(pool_type=global_pool)
# Classifier
self.classifier = nn.Linear(self.num_features * self.global_pool.feat_mult(), self.num_classes)
efficientnet_init_weights(self)
def as_sequential(self):
layers = [self.conv_stem, self.bn1, self.act1]
layers.extend(self.blocks)
layers.extend([self.conv_head, self.bn2, self.act2, self.global_pool])
layers.extend([nn.Flatten(), nn.Dropout(self.drop_rate), self.classifier])
return nn.Sequential(*layers)
def get_classifier(self):
return self.classifier
def reset_classifier(self, num_classes, global_pool='avg'):
self.num_classes = num_classes
self.global_pool = SelectAdaptivePool2d(pool_type=global_pool)
self.classifier = nn.Linear(
self.num_features * self.global_pool.feat_mult(), num_classes) if num_classes else None
def forward_features(self, x):
x = self.conv_stem(x)
x = self.bn1(x)
x = self.act1(x)
x = self.blocks(x)
x = self.conv_head(x)
x = self.bn2(x)
x = self.act2(x)
return x
def forward(self, x):
x = self.forward_features(x)
x = self.global_pool(x)
x = x.flatten(1)
if self.drop_rate > 0.:
x = F.dropout(x, p=self.drop_rate, training=self.training)
return self.classifier(x)
class EfficientNetFeatures(nn.Module):
""" EfficientNet Feature Extractor
A work-in-progress feature extraction module for EfficientNet, to use as a backbone for segmentation
and object detection models.
"""
def __init__(self, block_args, out_indices=(0, 1, 2, 3, 4), feature_location='pre_pwl',
in_chans=3, stem_size=32, channel_multiplier=1.0, channel_divisor=8, channel_min=None,
output_stride=32, pad_type='', act_layer=nn.ReLU, drop_rate=0., drop_connect_rate=0.,
se_kwargs=None, norm_layer=nn.BatchNorm2d, norm_kwargs=None):
super(EfficientNetFeatures, self).__init__()
norm_kwargs = norm_kwargs or {}
# TODO only create stages needed, currently all stages are created regardless of out_indices
num_stages = max(out_indices) + 1
self.out_indices = out_indices
self.drop_rate = drop_rate
self._in_chs = in_chans
# Stem
stem_size = round_channels(stem_size, channel_multiplier, channel_divisor, channel_min)
self.conv_stem = select_conv2d(self._in_chs, stem_size, 3, stride=2, padding=pad_type)
self.bn1 = norm_layer(stem_size, **norm_kwargs)
self.act1 = act_layer(inplace=True)
self._in_chs = stem_size
# Middle stages (IR/ER/DS Blocks)
builder = EfficientNetBuilder(
channel_multiplier, channel_divisor, channel_min, output_stride, pad_type, act_layer, se_kwargs,
norm_layer, norm_kwargs, drop_connect_rate, feature_location=feature_location, verbose=_DEBUG)
self.blocks = nn.Sequential(*builder(self._in_chs, block_args))
self.feature_info = builder.features # builder provides info about feature channels for each block
self._in_chs = builder.in_chs
efficientnet_init_weights(self)
if _DEBUG:
for k, v in self.feature_info.items():
print('Feature idx: {}: Name: {}, Channels: {}'.format(k, v['name'], v['num_chs']))
# Register feature extraction hooks with FeatureHooks helper
hook_type = 'forward_pre' if feature_location == 'pre_pwl' else 'forward'
hooks = [dict(name=self.feature_info[idx]['name'], type=hook_type) for idx in out_indices]
self.feature_hooks = FeatureHooks(hooks, self.named_modules())
def feature_channels(self, idx=None):
""" Feature Channel Shortcut
Returns feature channel count for each output index if idx == None. If idx is an integer, will
return feature channel count for that feature block index (independent of out_indices setting).
"""
if isinstance(idx, int):
return self.feature_info[idx]['num_chs']
return [self.feature_info[i]['num_chs'] for i in self.out_indices]
def forward(self, x):
x = self.conv_stem(x)
x = self.bn1(x)
x = self.act1(x)
self.blocks(x)
return self.feature_hooks.get_output(x.device)
def _create_model(model_kwargs, default_cfg, pretrained=False):
if model_kwargs.pop('features_only', False):
load_strict = False
model_kwargs.pop('num_classes', 0)
model_kwargs.pop('num_features', 0)
model_kwargs.pop('head_conv', None)
model_class = EfficientNetFeatures
else:
load_strict = True
model_class = EfficientNet
model = model_class(**model_kwargs)
model.default_cfg = default_cfg
if pretrained:
load_pretrained(
model,
default_cfg,
num_classes=model_kwargs.get('num_classes', 0),
in_chans=model_kwargs.get('in_chans', 3),
strict=load_strict)
return model
def _gen_mnasnet_a1(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
"""Creates a mnasnet-a1 model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/mnasnet
Paper: https://arxiv.org/pdf/1807.11626.pdf.
Args:
channel_multiplier: multiplier to number of channels per layer.
"""
arch_def = [
# stage 0, 112x112 in
['ds_r1_k3_s1_e1_c16_noskip'],
# stage 1, 112x112 in
['ir_r2_k3_s2_e6_c24'],
# stage 2, 56x56 in
['ir_r3_k5_s2_e3_c40_se0.25'],
# stage 3, 28x28 in
['ir_r4_k3_s2_e6_c80'],
# stage 4, 14x14in
['ir_r2_k3_s1_e6_c112_se0.25'],
# stage 5, 14x14in
['ir_r3_k5_s2_e6_c160_se0.25'],
# stage 6, 7x7 in
['ir_r1_k3_s1_e6_c320'],
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_mnasnet_b1(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
"""Creates a mnasnet-b1 model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/mnasnet
Paper: https://arxiv.org/pdf/1807.11626.pdf.
Args:
channel_multiplier: multiplier to number of channels per layer.
"""
arch_def = [
# stage 0, 112x112 in
['ds_r1_k3_s1_c16_noskip'],
# stage 1, 112x112 in
['ir_r3_k3_s2_e3_c24'],
# stage 2, 56x56 in
['ir_r3_k5_s2_e3_c40'],
# stage 3, 28x28 in
['ir_r3_k5_s2_e6_c80'],
# stage 4, 14x14in
['ir_r2_k3_s1_e6_c96'],
# stage 5, 14x14in
['ir_r4_k5_s2_e6_c192'],
# stage 6, 7x7 in
['ir_r1_k3_s1_e6_c320_noskip']
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_mnasnet_small(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
"""Creates a mnasnet-b1 model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/mnasnet
Paper: https://arxiv.org/pdf/1807.11626.pdf.
Args:
channel_multiplier: multiplier to number of channels per layer.
"""
arch_def = [
['ds_r1_k3_s1_c8'],
['ir_r1_k3_s2_e3_c16'],
['ir_r2_k3_s2_e6_c16'],
['ir_r4_k5_s2_e6_c32_se0.25'],
['ir_r3_k3_s1_e6_c32_se0.25'],
['ir_r3_k5_s2_e6_c88_se0.25'],
['ir_r1_k3_s1_e6_c144']
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=8,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_mobilenet_v2(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
""" Generate MobileNet-V2 network
Ref impl: https://github.com/tensorflow/models/blob/master/research/slim/nets/mobilenet/mobilenet_v2.py
Paper: https://arxiv.org/abs/1801.04381
"""
arch_def = [
['ds_r1_k3_s1_c16'],
['ir_r2_k3_s2_e6_c24'],
['ir_r3_k3_s2_e6_c32'],
['ir_r4_k3_s2_e6_c64'],
['ir_r3_k3_s1_e6_c96'],
['ir_r3_k3_s2_e6_c160'],
['ir_r1_k3_s1_e6_c320'],
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
act_layer=nn.ReLU6,
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_fbnetc(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
""" FBNet-C
Paper: https://arxiv.org/abs/1812.03443
Ref Impl: https://github.com/facebookresearch/maskrcnn-benchmark/blob/master/maskrcnn_benchmark/modeling/backbone/fbnet_modeldef.py
NOTE: the impl above does not relate to the 'C' variant here, that was derived from paper,
it was used to confirm some building block details
"""
arch_def = [
['ir_r1_k3_s1_e1_c16'],
['ir_r1_k3_s2_e6_c24', 'ir_r2_k3_s1_e1_c24'],
['ir_r1_k5_s2_e6_c32', 'ir_r1_k5_s1_e3_c32', 'ir_r1_k5_s1_e6_c32', 'ir_r1_k3_s1_e6_c32'],
['ir_r1_k5_s2_e6_c64', 'ir_r1_k5_s1_e3_c64', 'ir_r2_k5_s1_e6_c64'],
['ir_r3_k5_s1_e6_c112', 'ir_r1_k5_s1_e3_c112'],
['ir_r4_k5_s2_e6_c184'],
['ir_r1_k3_s1_e6_c352'],
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=16,
num_features=1984, # paper suggests this, but is not 100% clear
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_spnasnet(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
"""Creates the Single-Path NAS model from search targeted for Pixel1 phone.
Paper: https://arxiv.org/abs/1904.02877
Args:
channel_multiplier: multiplier to number of channels per layer.
"""
arch_def = [
# stage 0, 112x112 in
['ds_r1_k3_s1_c16_noskip'],
# stage 1, 112x112 in
['ir_r3_k3_s2_e3_c24'],
# stage 2, 56x56 in
['ir_r1_k5_s2_e6_c40', 'ir_r3_k3_s1_e3_c40'],
# stage 3, 28x28 in
['ir_r1_k5_s2_e6_c80', 'ir_r3_k3_s1_e3_c80'],
# stage 4, 14x14in
['ir_r1_k5_s1_e6_c96', 'ir_r3_k5_s1_e3_c96'],
# stage 5, 14x14in
['ir_r4_k5_s2_e6_c192'],
# stage 6, 7x7 in
['ir_r1_k3_s1_e6_c320_noskip']
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_efficientnet(variant, channel_multiplier=1.0, depth_multiplier=1.0, pretrained=False, **kwargs):
"""Creates an EfficientNet model.
Ref impl: https://github.com/tensorflow/tpu/blob/master/models/official/efficientnet/efficientnet_model.py
Paper: https://arxiv.org/abs/1905.11946
EfficientNet params
name: (channel_multiplier, depth_multiplier, resolution, dropout_rate)
'efficientnet-b0': (1.0, 1.0, 224, 0.2),
'efficientnet-b1': (1.0, 1.1, 240, 0.2),
'efficientnet-b2': (1.1, 1.2, 260, 0.3),
'efficientnet-b3': (1.2, 1.4, 300, 0.3),
'efficientnet-b4': (1.4, 1.8, 380, 0.4),
'efficientnet-b5': (1.6, 2.2, 456, 0.4),
'efficientnet-b6': (1.8, 2.6, 528, 0.5),
'efficientnet-b7': (2.0, 3.1, 600, 0.5),
'efficientnet-b8': (2.2, 3.6, 672, 0.5),
Args:
channel_multiplier: multiplier to number of channels per layer
depth_multiplier: multiplier to number of repeats per stage
"""
arch_def = [
['ds_r1_k3_s1_e1_c16_se0.25'],
['ir_r2_k3_s2_e6_c24_se0.25'],
['ir_r2_k5_s2_e6_c40_se0.25'],
['ir_r3_k3_s2_e6_c80_se0.25'],
['ir_r3_k5_s1_e6_c112_se0.25'],
['ir_r4_k5_s2_e6_c192_se0.25'],
['ir_r1_k3_s1_e6_c320_se0.25'],
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def, depth_multiplier),
num_features=round_channels(1280, channel_multiplier, 8, None),
stem_size=32,
channel_multiplier=channel_multiplier,
act_layer=Swish,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs,
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_efficientnet_edge(variant, channel_multiplier=1.0, depth_multiplier=1.0, pretrained=False, **kwargs):
""" Creates an EfficientNet-EdgeTPU model
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/efficientnet/edgetpu
"""
arch_def = [
# NOTE `fc` is present to override a mismatch between stem channels and in chs not
# present in other models
['er_r1_k3_s1_e4_c24_fc24_noskip'],
['er_r2_k3_s2_e8_c32'],
['er_r4_k3_s2_e8_c48'],
['ir_r5_k5_s2_e8_c96'],
['ir_r4_k5_s1_e8_c144'],
['ir_r2_k5_s2_e8_c192'],
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def, depth_multiplier),
num_features=round_channels(1280, channel_multiplier, 8, None),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
act_layer=nn.ReLU,
**kwargs,
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_efficientnet_condconv(
variant, channel_multiplier=1.0, depth_multiplier=1.0, experts_multiplier=1, pretrained=False, **kwargs):
"""Creates an EfficientNet-CondConv model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/efficientnet/condconv
"""
arch_def = [
['ds_r1_k3_s1_e1_c16_se0.25'],
['ir_r2_k3_s2_e6_c24_se0.25'],
['ir_r2_k5_s2_e6_c40_se0.25'],
['ir_r3_k3_s2_e6_c80_se0.25'],
['ir_r3_k5_s1_e6_c112_se0.25_cc4'],
['ir_r4_k5_s2_e6_c192_se0.25_cc4'],
['ir_r1_k3_s1_e6_c320_se0.25_cc4'],
]
# NOTE unlike official impl, this one uses `cc<x>` option where x is the base number of experts for each stage and
# the expert_multiplier increases that on a per-model basis as with depth/channel multipliers
model_kwargs = dict(
block_args=decode_arch_def(arch_def, depth_multiplier, experts_multiplier=experts_multiplier),
num_features=round_channels(1280, channel_multiplier, 8, None),
stem_size=32,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
act_layer=Swish,
**kwargs,
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_mixnet_s(variant, channel_multiplier=1.0, pretrained=False, **kwargs):
"""Creates a MixNet Small model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/mnasnet/mixnet
Paper: https://arxiv.org/abs/1907.09595
"""
arch_def = [
# stage 0, 112x112 in
['ds_r1_k3_s1_e1_c16'], # relu
# stage 1, 112x112 in
['ir_r1_k3_a1.1_p1.1_s2_e6_c24', 'ir_r1_k3_a1.1_p1.1_s1_e3_c24'], # relu
# stage 2, 56x56 in
['ir_r1_k3.5.7_s2_e6_c40_se0.5_nsw', 'ir_r3_k3.5_a1.1_p1.1_s1_e6_c40_se0.5_nsw'], # swish
# stage 3, 28x28 in
['ir_r1_k3.5.7_p1.1_s2_e6_c80_se0.25_nsw', 'ir_r2_k3.5_p1.1_s1_e6_c80_se0.25_nsw'], # swish
# stage 4, 14x14in
['ir_r1_k3.5.7_a1.1_p1.1_s1_e6_c120_se0.5_nsw', 'ir_r2_k3.5.7.9_a1.1_p1.1_s1_e3_c120_se0.5_nsw'], # swish
# stage 5, 14x14in
['ir_r1_k3.5.7.9.11_s2_e6_c200_se0.5_nsw', 'ir_r2_k3.5.7.9_p1.1_s1_e6_c200_se0.5_nsw'], # swish
# 7x7
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def),
num_features=1536,
stem_size=16,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
def _gen_mixnet_m(variant, channel_multiplier=1.0, depth_multiplier=1.0, pretrained=False, **kwargs):
"""Creates a MixNet Medium-Large model.
Ref impl: https://github.com/tensorflow/tpu/tree/master/models/official/mnasnet/mixnet
Paper: https://arxiv.org/abs/1907.09595
"""
arch_def = [
# stage 0, 112x112 in
['ds_r1_k3_s1_e1_c24'], # relu
# stage 1, 112x112 in
['ir_r1_k3.5.7_a1.1_p1.1_s2_e6_c32', 'ir_r1_k3_a1.1_p1.1_s1_e3_c32'], # relu
# stage 2, 56x56 in
['ir_r1_k3.5.7.9_s2_e6_c40_se0.5_nsw', 'ir_r3_k3.5_a1.1_p1.1_s1_e6_c40_se0.5_nsw'], # swish
# stage 3, 28x28 in
['ir_r1_k3.5.7_s2_e6_c80_se0.25_nsw', 'ir_r3_k3.5.7.9_a1.1_p1.1_s1_e6_c80_se0.25_nsw'], # swish
# stage 4, 14x14in
['ir_r1_k3_s1_e6_c120_se0.5_nsw', 'ir_r3_k3.5.7.9_a1.1_p1.1_s1_e3_c120_se0.5_nsw'], # swish
# stage 5, 14x14in
['ir_r1_k3.5.7.9_s2_e6_c200_se0.5_nsw', 'ir_r3_k3.5.7.9_p1.1_s1_e6_c200_se0.5_nsw'], # swish
# 7x7
]
model_kwargs = dict(
block_args=decode_arch_def(arch_def, depth_multiplier, depth_trunc='round'),
num_features=1536,
stem_size=24,
channel_multiplier=channel_multiplier,
norm_kwargs=resolve_bn_args(kwargs),
**kwargs
)
model = _create_model(model_kwargs, default_cfgs[variant], pretrained)
return model
@register_model
def mnasnet_050(pretrained=False, **kwargs):
""" MNASNet B1, depth multiplier of 0.5. """
model = _gen_mnasnet_b1('mnasnet_050', 0.5, pretrained=pretrained, **kwargs)
return model
@register_model
def mnasnet_075(pretrained=False, **kwargs):
""" MNASNet B1, depth multiplier of 0.75. """
model = _gen_mnasnet_b1('mnasnet_075', 0.75, pretrained=pretrained, **kwargs)
return model
@register_model
def mnasnet_100(pretrained=False, **kwargs):
""" MNASNet B1, depth multiplier of 1.0. """
model = _gen_mnasnet_b1('mnasnet_100', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def mnasnet_b1(pretrained=False, **kwargs):
""" MNASNet B1, depth multiplier of 1.0. """
return mnasnet_100(pretrained, **kwargs)
@register_model
def mnasnet_140(pretrained=False, **kwargs):
""" MNASNet B1, depth multiplier of 1.4 """
model = _gen_mnasnet_b1('mnasnet_140', 1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def semnasnet_050(pretrained=False, **kwargs):
""" MNASNet A1 (w/ SE), depth multiplier of 0.5 """
model = _gen_mnasnet_a1('semnasnet_050', 0.5, pretrained=pretrained, **kwargs)
return model
@register_model
def semnasnet_075(pretrained=False, **kwargs):
""" MNASNet A1 (w/ SE), depth multiplier of 0.75. """
model = _gen_mnasnet_a1('semnasnet_075', 0.75, pretrained=pretrained, **kwargs)
return model
@register_model
def semnasnet_100(pretrained=False, **kwargs):
""" MNASNet A1 (w/ SE), depth multiplier of 1.0. """
model = _gen_mnasnet_a1('semnasnet_100', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def mnasnet_a1(pretrained=False, **kwargs):
""" MNASNet A1 (w/ SE), depth multiplier of 1.0. """
return semnasnet_100(pretrained, **kwargs)
@register_model
def semnasnet_140(pretrained=False, **kwargs):
""" MNASNet A1 (w/ SE), depth multiplier of 1.4. """
model = _gen_mnasnet_a1('semnasnet_140', 1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def mnasnet_small(pretrained=False, **kwargs):
""" MNASNet Small, depth multiplier of 1.0. """
model = _gen_mnasnet_small('mnasnet_small', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def mobilenetv2_100(pretrained=False, **kwargs):
""" MobileNet V2 """
model = _gen_mobilenet_v2('mobilenetv2_100', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def fbnetc_100(pretrained=False, **kwargs):
""" FBNet-C """
if pretrained:
# pretrained model trained with non-default BN epsilon
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
model = _gen_fbnetc('fbnetc_100', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def spnasnet_100(pretrained=False, **kwargs):
""" Single-Path NAS Pixel1"""
model = _gen_spnasnet('spnasnet_100', 1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b0(pretrained=False, **kwargs):
""" EfficientNet-B0 """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b0', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b1(pretrained=False, **kwargs):
""" EfficientNet-B1 """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b1', channel_multiplier=1.0, depth_multiplier=1.1, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b2(pretrained=False, **kwargs):
""" EfficientNet-B2 """
# NOTE for train, drop_rate should be 0.3, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b2', channel_multiplier=1.1, depth_multiplier=1.2, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b2a(pretrained=False, **kwargs):
""" EfficientNet-B2 @ 288x288 w/ 1.0 test crop"""
# NOTE for train, drop_rate should be 0.3, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b2a', channel_multiplier=1.1, depth_multiplier=1.2, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b3(pretrained=False, **kwargs):
""" EfficientNet-B3 """
# NOTE for train, drop_rate should be 0.3, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b3', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b3a(pretrained=False, **kwargs):
""" EfficientNet-B3 @ 320x320 w/ 1.0 test crop-pct """
# NOTE for train, drop_rate should be 0.3, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b3a', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b4(pretrained=False, **kwargs):
""" EfficientNet-B4 """
# NOTE for train, drop_rate should be 0.4, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b4', channel_multiplier=1.4, depth_multiplier=1.8, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b5(pretrained=False, **kwargs):
""" EfficientNet-B5 """
# NOTE for train, drop_rate should be 0.4, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b5', channel_multiplier=1.6, depth_multiplier=2.2, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b6(pretrained=False, **kwargs):
""" EfficientNet-B6 """
# NOTE for train, drop_rate should be 0.5, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b6', channel_multiplier=1.8, depth_multiplier=2.6, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_b7(pretrained=False, **kwargs):
""" EfficientNet-B7 """
# NOTE for train, drop_rate should be 0.5, drop_connect_rate should be 0.2
model = _gen_efficientnet(
'efficientnet_b7', channel_multiplier=2.0, depth_multiplier=3.1, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_es(pretrained=False, **kwargs):
""" EfficientNet-Edge Small. """
model = _gen_efficientnet_edge(
'efficientnet_es', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_em(pretrained=False, **kwargs):
""" EfficientNet-Edge-Medium. """
model = _gen_efficientnet_edge(
'efficientnet_em', channel_multiplier=1.0, depth_multiplier=1.1, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_el(pretrained=False, **kwargs):
""" EfficientNet-Edge-Large. """
model = _gen_efficientnet_edge(
'efficientnet_el', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_cc_b0_4e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B0 w/ 8 Experts """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
model = _gen_efficientnet_condconv(
'efficientnet_cc_b0_4e', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_cc_b0_8e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B0 w/ 8 Experts """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
model = _gen_efficientnet_condconv(
'efficientnet_cc_b0_8e', channel_multiplier=1.0, depth_multiplier=1.0, experts_multiplier=2,
pretrained=pretrained, **kwargs)
return model
@register_model
def efficientnet_cc_b1_8e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B1 w/ 8 Experts """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
model = _gen_efficientnet_condconv(
'efficientnet_cc_b1_8e', channel_multiplier=1.0, depth_multiplier=1.1, experts_multiplier=2,
pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b0(pretrained=False, **kwargs):
""" EfficientNet-B0. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b0', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b1(pretrained=False, **kwargs):
""" EfficientNet-B1. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b1', channel_multiplier=1.0, depth_multiplier=1.1, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b2(pretrained=False, **kwargs):
""" EfficientNet-B2. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b2', channel_multiplier=1.1, depth_multiplier=1.2, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b3(pretrained=False, **kwargs):
""" EfficientNet-B3. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b3', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b4(pretrained=False, **kwargs):
""" EfficientNet-B4. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b4', channel_multiplier=1.4, depth_multiplier=1.8, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b5(pretrained=False, **kwargs):
""" EfficientNet-B5. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b5', channel_multiplier=1.6, depth_multiplier=2.2, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b6(pretrained=False, **kwargs):
""" EfficientNet-B6. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b6', channel_multiplier=1.8, depth_multiplier=2.6, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b7(pretrained=False, **kwargs):
""" EfficientNet-B7. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b7', channel_multiplier=2.0, depth_multiplier=3.1, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b8(pretrained=False, **kwargs):
""" EfficientNet-B8. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b8', channel_multiplier=2.2, depth_multiplier=3.6, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b0_ap(pretrained=False, **kwargs):
""" EfficientNet-B0 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b0_ap', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b1_ap(pretrained=False, **kwargs):
""" EfficientNet-B1 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b1_ap', channel_multiplier=1.0, depth_multiplier=1.1, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b2_ap(pretrained=False, **kwargs):
""" EfficientNet-B2 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b2_ap', channel_multiplier=1.1, depth_multiplier=1.2, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b3_ap(pretrained=False, **kwargs):
""" EfficientNet-B3 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b3_ap', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b4_ap(pretrained=False, **kwargs):
""" EfficientNet-B4 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b4_ap', channel_multiplier=1.4, depth_multiplier=1.8, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b5_ap(pretrained=False, **kwargs):
""" EfficientNet-B5 AdvProp. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b5_ap', channel_multiplier=1.6, depth_multiplier=2.2, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b6_ap(pretrained=False, **kwargs):
""" EfficientNet-B6 AdvProp. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b6_ap', channel_multiplier=1.8, depth_multiplier=2.6, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b7_ap(pretrained=False, **kwargs):
""" EfficientNet-B7 AdvProp. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b7_ap', channel_multiplier=2.0, depth_multiplier=3.1, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_b8_ap(pretrained=False, **kwargs):
""" EfficientNet-B8 AdvProp. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.5
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet(
'tf_efficientnet_b8_ap', channel_multiplier=2.2, depth_multiplier=3.6, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_es(pretrained=False, **kwargs):
""" EfficientNet-Edge Small. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_edge(
'tf_efficientnet_es', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_em(pretrained=False, **kwargs):
""" EfficientNet-Edge-Medium. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_edge(
'tf_efficientnet_em', channel_multiplier=1.0, depth_multiplier=1.1, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_el(pretrained=False, **kwargs):
""" EfficientNet-Edge-Large. Tensorflow compatible variant """
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_edge(
'tf_efficientnet_el', channel_multiplier=1.2, depth_multiplier=1.4, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_cc_b0_4e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B0 w/ 4 Experts. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_condconv(
'tf_efficientnet_cc_b0_4e', channel_multiplier=1.0, depth_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_cc_b0_8e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B0 w/ 8 Experts. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_condconv(
'tf_efficientnet_cc_b0_8e', channel_multiplier=1.0, depth_multiplier=1.0, experts_multiplier=2,
pretrained=pretrained, **kwargs)
return model
@register_model
def tf_efficientnet_cc_b1_8e(pretrained=False, **kwargs):
""" EfficientNet-CondConv-B1 w/ 8 Experts. Tensorflow compatible variant """
# NOTE for train, drop_rate should be 0.2, drop_connect_rate should be 0.2
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_efficientnet_condconv(
'tf_efficientnet_cc_b1_8e', channel_multiplier=1.0, depth_multiplier=1.1, experts_multiplier=2,
pretrained=pretrained, **kwargs)
return model
@register_model
def mixnet_s(pretrained=False, **kwargs):
"""Creates a MixNet Small model.
"""
model = _gen_mixnet_s(
'mixnet_s', channel_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def mixnet_m(pretrained=False, **kwargs):
"""Creates a MixNet Medium model.
"""
model = _gen_mixnet_m(
'mixnet_m', channel_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def mixnet_l(pretrained=False, **kwargs):
"""Creates a MixNet Large model.
"""
model = _gen_mixnet_m(
'mixnet_l', channel_multiplier=1.3, pretrained=pretrained, **kwargs)
return model
@register_model
def mixnet_xl(pretrained=False, **kwargs):
"""Creates a MixNet Extra-Large model.
Not a paper spec, experimental def by RW w/ depth scaling.
"""
model = _gen_mixnet_m(
'mixnet_xl', channel_multiplier=1.6, depth_multiplier=1.2, pretrained=pretrained, **kwargs)
return model
@register_model
def mixnet_xxl(pretrained=False, **kwargs):
"""Creates a MixNet Double Extra Large model.
Not a paper spec, experimental def by RW w/ depth scaling.
"""
model = _gen_mixnet_m(
'mixnet_xxl', channel_multiplier=2.4, depth_multiplier=1.3, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_mixnet_s(pretrained=False, **kwargs):
"""Creates a MixNet Small model. Tensorflow compatible variant
"""
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_mixnet_s(
'tf_mixnet_s', channel_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_mixnet_m(pretrained=False, **kwargs):
"""Creates a MixNet Medium model. Tensorflow compatible variant
"""
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_mixnet_m(
'tf_mixnet_m', channel_multiplier=1.0, pretrained=pretrained, **kwargs)
return model
@register_model
def tf_mixnet_l(pretrained=False, **kwargs):
"""Creates a MixNet Large model. Tensorflow compatible variant
"""
kwargs['bn_eps'] = BN_EPS_TF_DEFAULT
kwargs['pad_type'] = 'same'
model = _gen_mixnet_m(
'tf_mixnet_l', channel_multiplier=1.3, pretrained=pretrained, **kwargs)
return model