Towards Big Linked Data: A Large-Scale, Distributed Semantic Data Storage

Bo Hu, Nuno Carvalho and Takahide Matsutsuka
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Bo Hu: Intelligent Society Platform Research Division, Fujitsu Laboratories of Europe Ltd (FLE), Hayes, UK
Nuno Carvalho: Intelligent Society Platform Research Division, Fujitsu Laboratories of Europe Ltd (FLE), Hayes, UK
Takahide Matsutsuka: Intelligent Society Platform Research Division, Fujitsu Laboratories of Europe Ltd (FLE), Hayes, UK

International Journal of Data Warehousing and Mining (IJDWM), 2013, vol. 9, issue 4, 19-43

Abstract: In light of the challenges of effectively managing Big Data, the authors are witnessing a gradual shift towards the increasingly popular Linked Open Data (LOD) paradigm. LOD aims to impose a machine-readable semantic layer over structured as well as unstructured data and hence automate some data analysis tasks that are not designed for computers. The convergence of Big Data and LOD is, however, not straightforward: the semantic layer of LOD and the Big Data large scale storage do not get along easily. Meanwhile, the sheer data size envisioned by Big Data denies certain computationally expensive semantic technologies, rendering the latter much less efficient than their performance on relatively small data sets. In this paper, the authors propose a mechanism allowing LOD to take advantage of existing large-scale data stores while sustaining its “semantic” nature. The authors demonstrate how RDF-based semantic models can be distributed across multiple storage servers and the authors examine how a fundamental semantic operation can be tuned to meet the requirements on distributed and parallel data processing. The authors' future work will focus on stress test of the platform in the magnitude of tens of billions of triples, as well as comparative studies in usability and performance against similar offerings.

Date: 2013
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