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YASGUI: Web-based SPARQL client with bells ‘n wistles

Source: Data2Semantics A few months ago Laurens Rietveld was looking for a query interface from which he could easily query any other SPARQL endpoint. But he couldn’t find any that fit my requirements: Work on all endpoints conforming to the SPARQL protocol (not just the CORS enabled ones) Nice / easy to use interface Cross-platform […]

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LDBC, A Socio-technical Perspective

In recent days cyberspace has seen some discussion concerning the relationship of the EU FP7 project LDBC (Linked Data Benchmark Council) and sociotechnical considerations. It has been suggested that LDBC, to its own and the community’s detriment, ignores sociotechnical aspects. LDBC, as research projects go, actually has an unusually large, and as of this early […]

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LDBC project

The mission of the LDBC can be compared to that of the Transaction Processing Council (TPC) that Jim Gray founded in the area of relational database technology (www.tpc.org). LDBC will create a body in which vendors of RDF and graph database systems agree on relevant benchmarks and benchmark practices; and will publish official benchmark results. […]

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Behind the scenes of a Linked Data tutorial

Source: Semantic Web world for you Last week, on the afternoon of November 22, I co-organized a tutorial about Linked Data aimed at researchers from digital humanities. The objective was to give a basic introduction to the core principles and to do that in a very hands-on setting, so that everyone can get a concrete […]

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Online TUC questionnaire at http://goo.gl/PwGtK

The TUC will kick off its activities on November 19/20, 2012 at the first scheduled meeting in Barcelona. An online questionnaire is available at http://goo.gl/PwGtK for interested parties can make contributions on their experiences and needs for consideration in the LDBC benchmarks.

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RDF and Graph benchmarking project started: LDBC

This week we received notification from the EU that the LDBC project has been granted. We think this is great news. The LDBC project (is a STREP and will run until Q2 2015. LDBC stands for Linked Data Benchmark Council, and linked data here of course comprises RDF data management, but also includes the emerging class of […]

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Neo Technology and LDBC

“Graphs are everywhere. Organizations of all sizes, from large enterprise to new startups, are embracing graph databases as the fastest way to query and store graph data. The EU has recognized this, and has funded the Linked Data Benchmark Council to promote and further the research in graph databases. We are grateful to the EU […]

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EU confirmes the start of LDBC.

November 9, 2012, the EU confirmed the start of the new FP7 project called Linked Data Benchmark Council (LDBC). The main objective of LDBC is the development of benchmarks for the emerging field of RDF and graph data management systems, as well as to spur industry cooperation around such benchmarks. This new council of database […]

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Update: Complexity, Learning and Semantics

Source: Data2Semantics Complexity metrics form the backbone of graph analysis. Centrality, betweenness, assortativity and scale freeness are just a handful of selections from a large and quickly growing literature. It seems that every purpose has its own notion of complexity. Can we find a way to tie these disparate notions together? Algorithmic statistics provide an […]

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Update: TabLinker & UnTabLinker

Source: Data2Semantics TabLinker, introduced in an earlier post, is a spreadsheet to RDF converter. It takes Excel/CSV files as input, and produces enriched RDF graphs with cell contents, properties and annotations using the DataCube and Open Annotation vocabularies. TabLinker interprets spreadsheets based on hand-made markup using a small set of predefined styles (e.g. it needs to […]

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