一种基于基本信息单元的索引

An Index Based on Basic Information Units

信息检索是数据空间必须提供的一个重要功能,本文介绍一个数据空间信息检索子系统的索引方案。利用数据空间中数据之间的关系,抽取相关的数据,组成一个个基本信息单元,为多源异构异质数据建立一个基于基本信息单元的扩展的倒排索引。实验结果表明:利用基于基本信息单元的索引,系统能返回语义信息相对比较完整的查询结果。

Information retrieval is an important function which data spaces must provide. This paper describes an index for an information retrieval subsystem of a data space system. Using the relationship between the data in the data space, the relevant data are extracted to compose some basic information units, and then an extended inverted lists based on the basic information units is created for multi source heterogeneous data. The experiments show that using the index based on basic information units, the system can return comparatively complete semantic information.