文件名称：recommender system
文件大小：698KB
文件格式：PDF
更新时间：2015-05-01 05:07:14
Recommender Systems
The aim of a web-based recommender system is to pro- vide highly accurate and up-to-date recommendations to its users; in practice, it will hope to retain its users over time. However, this raises unique challenges. To achieve complex goals such as keeping the recommender model up- to-date over time, we need to consider a number of exter- nal requirements. Generally, these requirements arise from the physical nature of the system, for instance the available computational resources. Ideally, we would like to des