Semantic Extension for the Linked Data Based on Semantically Enhanced Annotation and Reasoning

Semantic Extension for the Linked Data Based on Semantically Enhanced Annotation and Reasoning

Pu Li, Zhifeng Zhang, Lujuan Deng, Junxia Ma, Fenglong Wu, Peipei Gu, Yuncheng Jiang
Copyright: © 2019 |Pages: 36
DOI: 10.4018/978-1-5225-7186-5.ch005
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Abstract

Linked Data, a new form of knowledge representation and publishing described by RDF, can provide more precise and comprehensible semantic structures. However, the current RDF Schema (RDFS) and SPARQL-based query strategy cannot fully express the semantics of RDF since they cannot unleash the implicit semantics between linked entities, so they cannot unleash the potential of Linked Data. To fill this gap, this chapter first defines a new semantic annotating and reasoning method which can extend more implicit semantics from different properties and proposes a novel general Semantically-Extended Scheme for Linked Data Sources to realize the semantic extension over the target Linked Data source. Moreover, in order to effectively return more information in the process of semantic data retrieval, we then design a new querying model which extends the SPARQL pattern. Lastly, experimental results show that our proposal has advantages over the initial Linked Data source and can return more valid results than some of the most representative similarity search methods.
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In April 1998, the first draft of the RDF Schema (RDFS) specification was published as a W3C Working Note (Ciobanu et al., 2016). The focus of the work was to extend the RDF vocabulary and detect some semantics of user-defined relationships between classes and properties. As being heavily modified in later versions, the subsequent RDFS specification was accepted as a W3C Recommendation in early 2004 (Dan & Guha, 2004) and remained ever since (Klyne & Carroll, 2014). RDFS extends RDF with four key terms (Kejriwal & Miranker, 2015) and makes more detailed description about the RDF Semantics (Hayes et al., 2004).

The list of four relationships and some of their corresponding rules are shown in Table 1. The interested reader can see Section 7 in (Hayes et al., 2004) for all.

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