高斯过程的非线性矩阵分解Non-Linear Matrix Factorization with Gaussian Processes |
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课程网址: | http://videolectures.net/icml09_urtasun_nlmf/ |
主讲教师: | Raquel Urtasun |
开课单位: | 多伦多大学 |
开课时间: | 2009-08-26 |
课程语种: | 英语 |
中文简介: | 协同过滤的一种流行方法是矩阵分解。在本文中,我们考虑“概率矩阵分解”,并通过采用潜变量模型的观点,我们展示了它与贝叶斯PCA的等价性。这激发了我们考虑概率PCA及其非线性扩展,高斯过程潜变量模型(GP LVM)作为概率非线性矩阵分解的方法。我们将方法应用于基准电影推荐者数据集。结果显示优于以前的现有技术性能。 |
课程简介: | A popular approach to collaborative filtering is matrix factorization. In this paper we consider the "probabilistic matrix factorization" and by taking a latent variable model perspective we show its equivalence to Bayesian PCA. This inspires us to consider probabilistic PCA and its non-linear extension, the Gaussian process latent variable model (GP-LVM) as an approach for probabilistic non-linear matrix factorization. We apply approach to benchmark movie recommender data sets. The results show better than previous state-of-the-art performance. |
关 键 词: | 协同过滤; 矩阵分解; 潜变量模型 |
课程来源: | 视频讲座网 |
最后编审: | 2019-04-24:lxf |
阅读次数: | 113 |