Low-cost queryable linked data through triple pattern fragments
Ruben Verborgh, Olaf Hartig, Ben De Meester, Gerald Haesendonck, Laurens De Vocht, Miel Vander Sande, Richard Cyganiak, Pieter Colpaert, Erik Mannens, Rik Van de Walle · Ghent University Academic Bibliography (Ghent University) · 2014
Abstract. For publishers of Linked Open Data, providing queryable access to their dataset is costly. Those that offer a public sparql end-point often have to sacrifice high availability; others merely provide non-queryable means of access such as data dumps. We have developed a client-side query execution approach for which servers only need to provide a lightweight triple-pattern-based interface, enabling queryable access at low cost. This paper describes the implementation of a client that can evaluate sparql queries over such triple pattern fragments of a Linked Data dataset. Graph patterns of sparql queries can be solved efficiently by using metadata in server responses. The demonstration consists of sparql client for triple pattern fragments that can run as a standalone application, browser application, or library.