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arXiv cs/0305004cs.CLcs.AI
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信息抽取的近似文法

Approximate Grammar for Information Extraction

V. Sriram, B. Ravi Sekar Reddy, R. Sangal

摘要:

本文提出了近似文法的概念以及如何利用它从文档中抽取信息。由于信息串的结构不能在文档中很好地定义,我们不能使用传统的语法规则来表示信息。因此,需要设计一个近似的语法,可以有效地用来完成信息抽取的任务。近似文法是朝着这个方向迈出的新的一步。近似语法的规则可以由用户给出,或者机器可以从带注释的文档中学习规则。我们已经在上述两个领域进行了实验,结果令人印象深刻。

英文摘要:

In this paper, we present the concept of Approximate grammar and how it can be used to extract information from a documemt. As the structure of informational strings cannot be defined well in a document, we cannot use the conventional grammar rules to represent the information. Hence, the need arises to design an approximate grammar that can be used effectively to accomplish the task of Information extraction. Approximate grammars are a novel step in this direction. The rules of an approximate grammar can be given by a user or the machine can learn the rules from an annotated document. We have performed our experiments in both the above areas and the results have been impressive.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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