Why does vit_huge_patch14_gap_224.in1k_ijepa set num_classes to 0?

[NightMachinery]

Why does vit_huge_patch14_gap_224.in1k_ijepa set num_classes to 0?

    'vit_huge_patch14_gap_224.in1k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.14-300e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_huge_patch14_gap_224.in22k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.h.14-900e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_huge_patch16_gap_448.in1k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.16-448px-300e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        input_size=(3, 448, 448), crop_pct=1.0,
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),
    'vit_giant_patch16_gap_224.in22k_ijepa': _cfg(
        url='https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.g.16-600e.pth.tar',
        # hf_hub_id='timm/',
        license='cc-by-nc-4.0',
        mean=IMAGENET_DEFAULT_MEAN, std=IMAGENET_DEFAULT_STD, num_classes=0),

[rwightman]

@NightMachinery there is no classifier head

[NightMachinery]

So why are they named in1k?

[rwightman]

I gave it that tag, it was semi/unsupervised learning but with imagenet-1k, not supervised so no classifier ... if it had classifier it would be in1k_ijepa_ft_in1k ...