guoguibing / librec

LibRec: A Leading Java Library for Recommender Systems, see
https://www.librec.net/
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关于net.librec.recommender.cf.rating.BiasedMFRecommender实现细节的请教 #300

Open xiaomaiyun opened 5 years ago

xiaomaiyun commented 5 years ago

你好,我想请教一下,在net.librec.recommender.cf.rating.BiasedMFRecommender中trainModel()方法在进行矩阵分解求解时是使用的什么优化方法呢?是使用的交替最小二乘法(ALS)还是梯度下降法(GD),或者随机梯度下降法(SGD)呢?