mmdetection/configs/_base_/schedules/schedule_20e.py

# optimizer
optimizer = dict(type='SGD', lr=0.02, momentum=0.9, weight_decay=0.0001)
optimizer_config = dict(grad_clip=None)
# learning policy
lr_config = dict(
    policy='step',
    warmup='linear',
    warmup_iters=500,
    warmup_ratio=0.001,
    step=[16, 19])
runner = dict(type='EpochBasedRunner', max_epochs=20)
Simplify _base_ config (#3166) 4 years ago			`# optimizer`
			`optimizer = dict(type='SGD', lr=0.02, momentum=0.9, weight_decay=0.0001)`
			`optimizer_config = dict(grad_clip=None)`
Fix typos (#2768) 5 years ago			`# learning policy`
Simplify _base_ config (#3166) 4 years ago			`lr_config = dict(`
			`policy='step',`
			`warmup='linear',`
			`warmup_iters=500,`
			`warmup_ratio=0.001,`
			`step=[16, 19])`
[Feature]: support to customize type of runner (#4570) * sup customize runner * fix typo * use build runner * minor fix * modify according to comments * add an assertion * swap order * fix tutorial 4 years ago			`runner = dict(type='EpochBasedRunner', max_epochs=20)`