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IR vs. databases: Structured vs unstructured data

  • Structured data tends to refer to information in “tables”

    EmployeeManagerSalary
    SmithJones50000

    Chang

    Smith60000

    IvySmith50000

  • Typically allows numerical range and exact match

  • (for text) queries, e.g.,

  • Salary < 60000 AND Manager = Smith.


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