To the question of building topic-specific search engine, an architecture is discussed and an algorithm of specialty webpages 'indices collected is put forward in this paper.
针对特定主题的搜索引擎构建问题，给出了一种主题搜索引擎的体系结构，并在此基础上，提出了面向主题的专业网页索引集构造算法。
While there are no shortage of services offering realtime search now (including Google, Bing, etc), the real key is knowing when a specific topic is popular enough to warrant it showing up.
目前Google、Bing等公司也提供即时搜索服务，但关键问题在于知道某个话题何时会火爆起来，足以出现在搜索结果中。
It is very difficult to search a specific topic outside of China.
在国外，而对某些特别的题材是很难找得到。
It is very difficult to search a specific topic outside of China.
在国外，而对某些特别的题材是很难找得到。
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