The key point to grasp about collaborative-filtering software is that it knows absolutely nothing about movies.
对于“协同筛选”软件,把握的关键点在于它对电影一无所知。
2
Very few systems now are combining metadata or content with collaborativefiltering.
极少有系统把元数据和内容一起用来做协同过滤。
3
For example many social bookmarking and social news sites use community sentiment and collaborativefiltering to help to highlight what is most interesting, useful or important.