Any good research needs a strong foundation. This chapter lays these foundations for the book. One characteristic of original research is the lack of a standardized vocabulary. Therefore, we will first explain the terminology of ontology and alignment. Then the concept of similarity and its meaning for ontologies will be described, on both an abstract and a concrete level with examples. Only with a thorough understanding of the main expressions, it is possible to follow the ideas of the succeeding chapters.
KeywordsResource Description Framework Description Logic Edit Distance Core Ontology Ontology Alignment
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