关于plateau的讨论
http://blog.youkuaiyun.com/zimenglan_sysu/article/details/52804200
train_net: "models/pvanet/example_train/train.prototxt"
base_lr: 0.001
lr_policy: "plateau"
gamma: 0.1
stepsize: 50000
display: 20
average_loss: 100
momentum: 0.9
weight_decay: 0.0002
plateau_winsize: 50000
plateau_winsize: 75000
plateau_winsize: 100000
# We disable standard caffe solver snapshotting and implement our own snapshot
# function
snapshot: 0
# We still use the snapshot prefix, though
snapshot_prefix: "pvanet_frcnn"
iter_size: 2