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Hakia is a semantic web search engine. It is known for placing an emphasis on the quality of information retrieved from a web search, and it uses librarian-recommended resources in its search results.[1]

In 2008, it indexed (or "QDEXed," the service's term for its special semantic indexing process) over 10 million PubMed abstracts, and now claims that it provides better search recall than a typical inverted-index search engine.[2]

The specific PubMed search portal from Hakia can be found here.


  1. Statement on http://company.hakia.com/about.html. Accessed on September 16, 2009.
  2. "hakia Adds 10 million PubMed Articles to its Semantic Search Engine." Posted June 12, 2008 on http://blog.hakia.com/?p=310. Accessed on September 16, 2009.

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