它能显著的降低代价函数 ，该代价函数通常包括整个训练集上的性能评估和额外的正则化。
I am using protobuf version 2.6.1. I've defined a message which contains a sub-message that only has a repeated bytes field like so: message A { repeated bytes payload = 1; } message B { repeated A payload_blocks = 1; } In my use case, I...