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推荐系统中数据组合的概率模型

Probabilistic Models for Data Combination in Recommender Systems
课程网址: http://videolectures.net/lms08_williamson_pmdc/  
主讲教师: Sinead Williamson
开课单位: 德克萨斯大学
开课时间: 2008-12-20
课程语种: 英语
中文简介:
我们提出了一种联合学习多个相关矩阵的方法,并且表明,通过在两个矩阵之间共享信息,这种方法允许我们改进其中一个矩阵包含非常稀疏或没有信息的项目的预测性能。 虽然上述理由集中于推荐系统,但所描述的方法适用于与一组共同项目相关的任何两个数据集,并且可以以矩阵形式表示。 这些问题的示例可以包括图像数据,其中每个图像与一组单词相关联(例如,标题或标记图像); 一组科学论文,可以使用词袋表示或与其他论文的引用链接表示; 以两种语言存在的文件集。
课程简介: We propose a method for jointly learning multiple related matrices, and show that, by sharing information between the two matrices, such an approach allows us to improve predictive performances for items where one of the matrices contains very sparse, or no, information. While the above justification has focused on recommender systems, the approach described is applicable to any two datasets that relate to a common set of items and can be represented in matrix form. Examples of such problems could include image data where each image is associated with a set of words (for example captioned or tagged images); sets of scientific papers that can be represented either using a bag-of-words representation or in terms of their citation links to and from other papers; corpora of documents that exist in two languages.
关 键 词: 联合学习多个相关矩阵; 推荐系统; 数据集
课程来源: 视频讲座网
最后编审: 2020-06-08:yumf
阅读次数: 37