背景介绍「得到锦囊」产品刚上线时,该版块首页的最热排序暴露了两个问题:分页时数据重复和最热榜单被霸屏,本文将围绕解决这两个问题来展开,介绍下如何参考牛顿冷却定律来优化最热内容的排序。 “牛顿冷却定律”本质上它描述了高于周围温度的物体会向外散热,并逐渐降温的过程,同时单位时间内散热与周围温差会成正比关系。通过建立”温度”与”时间”之间的函数关系,构建一个”指数式衰减”(Exponential dec
Had I not seen the Sun
------- by Emily Dickinson
Had I not seen the Sun
I could have borne the shade
But Light a newer Wilderness
My Wilderness has made —