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一个特殊场景的 LR 预测优化 Trick | AlgorithmDog
source link: http://www.algorithmdog.com/lr-prediction-optimization?
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我们的业务碰到了一个很特殊的场景：用户数量巨大，上亿；物品数目比较少，不超过 500 个。针对这个特点，我们设计了一个小程序 Trick。这个程序 Trick 极大地提高了 LR 的预测性能，预测耗时减为原来的 120 分之一。
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