Emerging Pragmatic Patterns in Large-Scale RDF Data

With the development of the Linked Data, an increasing number of RDF data sets are published in many application domains. To understand the underlying meaning and characteristics of large RDF data, and to reuse popular domain terms when publishing data, capturing emerging pragmatic patterns is critical. In this paper, we propose the notion of term co-instantiation graph TIG and a method to build a TIG for a given RDF dataset. We also describe a clustering-based approach to distill a set of pragmatic patterns from a TIG, which reveal the pragmatic custom of highly-correlated terms. Through extensive experiments on a real big dataset containing 21i¾?M RDF documents, we analyze the macroscopic structure of the term co-instantiation graph and pragmatic patterns from the complex network point of view, and demonstrate our approach can not only give an elaborated ontology partitioning from the pragmatic perspective to ease the ontology reuse, but also provide a new way to explore the Linked Data.