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What are instances in ontologies? 


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Instances in ontologies refer to specific examples or individual entities that belong to a concept or class within the ontology. These instances provide concrete data and represent real-world objects or entities that are categorized and described by the concepts in the ontology. Instances play a crucial role in enhancing the understanding and meaning of concepts within the ontology, as they provide more context and specificity compared to the abstract definitions of concepts. Incorporating instances into ontology matching algorithms can improve the quality of matching results by considering the meaning of concepts based on their instances. Instance-based matching approaches aim to match categories or concepts based on the instances assigned to them, translating the ontology match problem into an instance match problem, which can be easier to solve.

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Instances in ontologies are the specific examples or individual entities that populate the ontology and represent real-world objects or concepts.
Instances in ontologies are the specific examples or individual entities that are modeled within the ontology and describe the meaning of the concepts better than their meta information.
Instances in ontologies are referred to as the set of facts that are structured according to the ontology. They can be considered as a state or an instance of the ontology.
Instances in ontologies are mentioned in the paper.

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