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　　Knowledge mapping are behind the strong support of knowledge base. Google acquired Metaweb in 2010, which is a focus in the research of information between how to contact each other company, can provide ultimate than words of more efficient search algorithm. Google uses Metaweb technology, Freebase, Wikipedia, CIA World Factbook and other public resources and its own search information as database, knowledge map can cover all aspects of.

　　Google knowledge library this week in the United States will be in the area on the line, but in the early days of only support english. But Google has been an advancing quickly company, believe that this innovation will soon spread worldwide, we rub one's eyes and wait.