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。

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Right now most of these matters are handled behind the scenes, state-to-state, like the issue of the filtering software.

现在大多数问题，像过滤软件的问题一样，是在幕后操作，在国与国之间处理。

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A less obvious means of Web personalization is collaborative-filtering software that resides on a Web site and tracks users' movements.

另一个不太引人注意的网站个人化的手段是协作过滤软件，它驻留在网站中，跟踪用户动向。

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The other is to block the electronic path to objectionable material with filtering software.

ECONOMIST: China and the Internet

The study also found that 20 percent of parents are using the available Internet-filtering software and parental-control services.

CNN: Most older kids surf unsupervised

Even in China, it is hard to control the internet (this week, the country delayed plans to put internet filtering software into every computer).

ECONOMIST: Thailand's l��se majest�� law