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面向语义异构的信息集成系统查询处理方案

Keywords: 集成,语义,信息检索,本体,信息集成

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Abstract:

本体被用来解决信息集成系统中的模式语义异构.为了解决信息集成系统中的数值型语义异构问题,在查询处理机制中分步骤的处理该类异构.查询请求语义分析和全局查询阶段处理同形异义和异形同义情况、子查询本地化模块处理计量单位不同所造成的影响、冗余处理阶段根据策略处理有冗余结果集中内存在错误数据所造成的冲突.这3个阶段共同完成查询,可以解决数值型语义异构问题.

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