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#5am
在做搜索的时候,学到一个很重要的进步方式分类: exploration & exploitation

Exploration, 一般是引入新的方法或者参数优化目标。搜索优化中,主要是算法上的优化。

Exploitation, 指的是用已有的知识和方法,最大限度优化目标。搜索优化中,主要是通过 case study, 发现现有算法排序中
还有哪些问题。通过解决这些问题来迭代。
Exploration
一般很难预测,对于搜索,尤其是模型上的迭代。胜率低。bert成了,xlnet废了。很难解释。深度学习模型,俗称“炼丹”。
但万一成了,就是大招。

Exploitation
就是通过对用户query进行大量的case study,会更理解用户的需求分布。成功率高。
但会过拟合当前样本。
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