[Semantic Web]Jena vs. Sesame (supplement)

读书笔记 Lee 发表于 2006/2/25 10:38:20 The SAIL API specifically deals with RDFS on the retrieval side: it offers methods for querying class and property subsumption, and domain and range restrictions. In contrast, both Jena and Redland focus exclusively on the RDF triple set, leaving interpretation of these triples as an excercise to the user. In SAIL, these RDFS inferencing tasks are handled internally. The main reason for this is that there is a strong relationship between the e ciency of the inferencing and the actual storage model being used. Since any particulary SAIL implementation has a complete understanding of the storage model (e.g. the database schema in the case of an RDBMS), this knowledge can be exploited to infer, for example, class subsumption more effciently. ---- from Sesame: A Generic Architecture for Storing and Querying RDF and RDF Schema

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