Can gradient descent be accelerated by just choosing better stepsizes? Surprisingly, the answer is yes. This short expository article provides an accessible introduction to this phenomenon of stepsize hedging.

翻译：梯度下降能否仅通过选择更优的步长来加速？令人惊讶的是，答案是肯定的。这篇短小的说明性文章为步长对冲这一现象提供了易于理解的介绍。