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1. 发明授权

US06366908B1 Keyfact-based text retrieval system, keyfact-based text index method, and retrieval method 有权
标题翻译：基于Keyfact的文本检索系统，基于keyfact的文本索引方法和检索方法
公开(公告)号：US06366908B1
公开(公告)日：2002-04-02
申请号：US09475743
申请日：1999-12-30
申请人： Kyung Taek Chong , Myung-Gil Jang , MiSeon Jun , Se Young Park
发明人： Kyung Taek Chong , Myung-Gil Jang , MiSeon Jun , Se Young Park
IPC分类号： G06F1730
CPC分类号： G06F17/30616 , Y10S707/99933 , Y10S707/99935 , Y10S707/99936 , Y10S707/99942 , Y10S707/99952
摘要： A keyfact-based text retrieval method and a keyfact-based text index method that describes the formalized concept of a document by a pair comprising an object that is the head and a property that is the modifier and uses the information described by the pairs as index information for efficient document retrieval. A keyfact-based text retrieval system includes keyfact extracting, keyfact indexing, and keyfact retrieving. The keyfact extracting analyzes a document collection and a query and extracts keywords and keyfacts. The keywords do not have part-of-speech ambiguity and the keyfacts are extracted from the keywords. The keyfact indexing calculates the frequency of the keyfacts and generates a keyfact list of the document collection for a keyfact index structure. The keyfact retrieving receive a keyfact of the query and keyfacts of the document collection and defines a keyfact-based retrieval model in consideration of a weight factor of the keyfact pattern and generates a retrieval result. The retrieval result is a document similar to the query.
摘要翻译：基于keyfact的文本检索方法和基于keyfact的文本索引方法，其通过一对描述文档的形式化概念，包括作为头的对象和作为修饰符的属性，并且使用由对描述的信息作为索引信息有效的文件检索。一个基于keyfact的文本检索系统包括keyfact提取，keyfact索引和keyfact检索。关键词提取分析文档集合和查询，并提取关键字和关键字。这些关键字没有部分词义模糊，并且从关键字中提取关键词。关键词索引计算密钥的频率，并为密钥索引结构生成文档集合的密钥实例列表。检索的关键元素接收文档集合的查询和关键词的关键词，并考虑到关键图案的权重因子定义了基于关键词的检索模型，并生成检索结果。检索结果是与查询类似的文档。

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