It is a unavoidable problem for building an expert search engine.

它是建立一个专家搜索引擎的首要问题。

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However, the techniques and tools for expert search by now still cannot satisfy the need.

然而，现有的专家搜索技术和工具无法满足这种需求。

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As following, the language modeling techniques for expert search were discussed in a hierachical way.

实现了两种基于语言模型的专家检索基本方法，并应用分层剖析法加以分析比较。

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Police sent an expert search team back to the Saughton Park crime scene, which had already been searched once.

BBC: Stephen Nolan

Danny Sullivan, a search industry expert and blogger for Search Engine Land, concurs with Cutts: There's nothing nefarious about Google's protecting its user-focused emphasis on relevant results, he says.

FORBES: Magazine Article

Bing and Facebook have been cooperating on projects since they announced their partnership last year, although search expert Danny Sullivan says the impact on search has been minimal to date.

FORBES: Microsoft and Facebook, Sitting in a Tree... K-I-S-S-I-N-G