Features and Characteristics
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A DB-IR tightly-integrated Parallel DBMS: a general purpose database system
that provides faster search performance than the specialized IR search engines
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Supporting massive databases (64-bit architecture) (petabyte -> exabyte scale)
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Providing rich functionalities such as SQL, schemas, and indexes
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Providing efficient immediate upate
Application Areas
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Large-scale Web search engine like Google, Yahoo!, or Bing
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Large-scale Web bulletin board like Naver cafe or Daum cafe
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Large-scale social network service like Twitter
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