Those kinds of information are not easily accessible by following links or using the traditional search engine technology.

通过跟踪链接,或者传统搜索技术,是无法轻易获取的这些信息的。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

It's really a technology initiative that's aimed to index the "dark" web or the hidden web, because according to computer scientists, right now the conditional search engines only index about 1% of the information on the Internet.

这是一项,致力于将暗网,或隐藏网页纳入索引的技术创新，根据计算机科学家的统计，条件式的搜索引擎只将,互联网上1%的信息纳入了索引。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选