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Semantic similarity relations and computation in schema integration

机译:模式集成中的语义相似关系和计算

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摘要

Schema integration plays an important part in research areas of heterogeneous information systems and semantic interoperability. How to acquire data semantic knowledge from the local schemas, and how to represent the knowledge acquired in support to the schema integration process are two major problems in schema integration research. To find similarities between objects of different schemata at the semantic level is considered to be one of the crucial problems in schema integration. In order to identify such similarities it is necessary to form a set of semantic characteristics the objects may possess. In this paper, we present a set of such characteristics and a set of semantic similarity relations. The relations are classified into four groups, weak semantic relation, compatible semantic relation, equivalence semantic relation and mergeable semantic relation. In addition, based on the semantic similarity relations, we attempt to find semantic similarity between entities compared and compute their semantic similarity degrees (SSD). We also propose a schema integration tool, which makes use of the semantic relations to integrate objects of different schemata.
机译:模式集成在异构信息系统和语义互操作性的研究领域中起着重要的作用。如何从本地模式中获取数据语义知识,以及如何表示为支持模式集成过程而获得的知识是模式集成研究中的两个主要问题。在语义级别上查找不同架构对象之间的相似性被认为是架构集成中的关键问题之一。为了识别这种相似性,有必要形成对象可能拥有的一组语义特征。在本文中,我们提出了一组这样的特征和一组语义相似关系。这些关系分为四类:弱语义关系,兼容语义关系,等价语义关系和可合并语义关系。另外,基于语义相似度关系,我们试图找到被比较实体之间的语义相似度,并计算它们的语义相似度(SSD)。我们还提出了一种模式集成工具,该工具利用语义关系来集成不同模式的对象。

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