The first issue with data mining of distributed data sources is discovery.
分布式数据源数据挖掘的第一个问题是发现。
Ontology-based semantic information integration resolves the schema level heterogeneity and part of data level heterogeneity between distributed data sources.
基于本体的语义信息集成主要解决分布异构的数据源之间的模式级异构和部分数据异构（包括同义字和同音异义字）。
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