62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
# model settings
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model = dict(
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type='ImageClassifier',
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backbone=dict(type='LeNet5', num_classes=10),
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neck=None,
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head=dict(
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type='ClsHead',
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loss=dict(type='CrossEntropyLoss', loss_weight=1.0),
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))
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# dataset settings
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dataset_type = 'MNIST'
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img_norm_cfg = dict(mean=[33.46], std=[78.87], to_rgb=True)
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train_pipeline = [
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dict(type='Resize', scale=32),
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dict(type='Normalize', **img_norm_cfg),
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dict(type='ImageToTensor', keys=['img']),
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dict(type='ToTensor', keys=['gt_label']),
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dict(type='Collect', keys=['img', 'gt_label']),
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]
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test_pipeline = [
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dict(type='Resize', scale=32),
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dict(type='Normalize', **img_norm_cfg),
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dict(type='ImageToTensor', keys=['img']),
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dict(type='Collect', keys=['img']),
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]
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data = dict(
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samples_per_gpu=128,
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workers_per_gpu=2,
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train=dict(
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type=dataset_type, data_prefix='data/mnist', pipeline=train_pipeline),
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val=dict(
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type=dataset_type, data_prefix='data/mnist', pipeline=test_pipeline),
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test=dict(
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type=dataset_type, data_prefix='data/mnist', pipeline=test_pipeline))
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evaluation = dict(
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interval=5, metric='accuracy', metric_options={'topk': (1, )})
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# optimizer
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optimizer = dict(type='SGD', lr=0.01, momentum=0.9, weight_decay=0.0001)
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optimizer_config = dict(grad_clip=None)
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# learning policy
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param_scheduler = dict(
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type='MultiStepLR', by_epoch=True, milestones=[15], gamma=0.1)
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# yapf:disable
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default_hooks = dict(
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logger=dict(type='LoggerHook', interval=150),
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checkpoint=dict(type='CheckpointHook', interval=1)
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)
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# yapf:enable
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# train, val, test setting
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train_cfg = dict(by_epoch=True, max_epochs=5)
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val_cfg = dict(interval=1) # validate every epoch
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test_cfg = dict()
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# runtime settings
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dist_params = dict(backend='nccl')
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log_level = 'INFO'
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work_dir = './work_dirs/mnist/'
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load_from = None
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resume_from = None
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workflow = [('train', 1)]
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