configs/_base_/models/convnext/convnext-small.py

# Model settings
model = dict(
    type='ImageClassifier',
    backbone=dict(
        type='ConvNeXt',
        arch='small',
        out_indices=(3, ),
        drop_path_rate=0.4,
        gap_before_final_norm=True,
        init_cfg=[
            dict(
                type='TruncNormal',
                layer=['Conv2d', 'Linear'],
                std=.02,
                bias=0.),
            dict(type='Constant', layer=['LayerNorm'], val=1., bias=0.),
        ]),
    head=dict(
        type='LinearClsHead',
        num_classes=1000,
        in_channels=768,
        loss=dict(
            type='LabelSmoothLoss', label_smooth_val=0.1, mode='original'),
    ),
    train_cfg=dict(augments=[
        dict(type='Mixup', alpha=0.8),
        dict(type='CutMix', alpha=1.0),
    ]),
)