发明名称 Multi-layered semiotic mechanism for answering natural language questions using document retrieval combined with information extraction
摘要 A system and method are provided for processing a document containing multiple words to extract an answer. The method uses a set of signatures and signature based rules. Each rule includes a name formed by concatenating the signatures included in the rule and a concept which is assignable to the combination of signatures included in the rule. The method parses the words and assigns a signature to each of them. It may also assign a window which includes a parameter defining the number of signatures viewable at one time. The window may be moved so that the window reveals signatures not viewable in its previous position. The signatures viewable in the window are read and a rule name is created by concatenating the signatures. The created rule name is compared to the names of the rules and, if the created name matches any of the rule names, the matching rule is applied to create a concept and the concept is assigned back into the window.
申请公布号 US2002188586(A1) 申请公布日期 2002.12.12
申请号 US20010796961 申请日期 2001.03.01
申请人 VEALE RICHARD A. 发明人 VEALE RICHARD A.
分类号 G06F17/30;(IPC1-7):G06F7/00 主分类号 G06F17/30
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