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IBM SystemT

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IBM SystemT is a declarative information extraction system built as a research project at IBM's IBM Almaden Research Center beginning in 2005.

It includes the following main components: (1) AQL, a declarative rule language with similar syntax as SQL; (2) Optimizer, which takes AQL statements as input and generates high-performance algebraic execution plans; and (3) Execute engine, which executes the plan generated by the Optimizer and performs information extraction over input documents.

  • IBM SystemT.
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