FRINK Linked Data Fragments server

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• W1957179257 abstract "Online Analytical Processing (OLAP) promises an interface to analyse Linked Data containing statistics going beyond other interaction paradigms such as follow-your-nose browsers, faceted-search interfaces and query builders. Transforming statistical Linked Data into a star schema to populate a relational database and applying a common OLAP engine do not allow to optimise OLAP queries on RDF or to directly propagate changes of Linked Data sources to clients. Therefore, as a new way to interact with statistics published as Linked Data, we investigate the problem of executing OLAP queries via SPARQL on an RDF store. First, we define projection, slice, dice and roll-up operations on single data cubes published as Linked Data reusing the RDF Data Cube vocabulary and show how a nested set of operations lead to an OLAP query. Second, we show how to transform an OLAP query to a SPARQL query which generates all required tuples from the data cube. In a small experiment, we show the applicability of our OLAP-to-SPARQL mapping in answering a business question in the financial domain." @default.
• W1957179257 created "2016-06-24" @default.
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• W1957179257 date "2015-01-01" @default.
• W1957179257 modified "2023-10-01" @default.
• W1957179257 title "Interacting with Statistical Linked Data via OLAP Operations" @default.
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• W1957179257 doi "https://doi.org/10.1007/978-3-662-46641-4_7" @default.
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