On May 31st, GRADES will celebrate its third edition in conjunction with SIGMOD/PODS in Melbourne, Australia. The workshop has reached a maturity with its third edition and a very high quality set of papers submitted. GRADES this year gathers 8 papers from different areas of graph processing, graph technologies benchmarking and graph usage in different applications.
During last TUC Meeting in Barcelona we were glad to welcome Mark D. Wilkinson from Universidad Politécnica de Madrid with his presentation "SADI: A design-pattern for “native” Linked-Data Semantic Web Services".
Check the slides and video to learn more about how SADI uses OWL and RDF and about SHARE the health research environment that answers SPARQL queries with SADI.
This post is the first in a series of blogs analyzing the LDBC Social Network Benchmark Interactive workload. This is written from the dual perspective of participating in the benchmark design and of building the OpenLink Virtuoso implementation of same.
The second part of presentations during the first day at the TUC Meeting in Barcelona started with the presentation from Jerven Bolleman from the Swiss Institute of Bioinformatics called "20 billion triples in production".
Watch Jerven Bolleman talking about why and how the Uniprot SPARQL endpoint allows working with billion of triples from biological datasets.
To end the first day slot of the morning presentations during last 6th TUC Meeting in Barcelona Claudio Martella from VUA was presenting Lighthouse: Large-scale graph pattern matching on Giraph.
Watch Claudio Martella to learn more about Lighthouse and how it uses Giraph and Cypher.
For the third presentation this last 6th TUC Meeting held in Barcelona we were pleased to welcome Tomer Sagi from HP.
Watch his presentation called "HP Labs: Titan DB on LDBC Interactive" where Tomer introduced the history of the research performed at HP along with his latest work fields.
The second presentation during last LDBC's 6th TUC Meeting that took place in Barcelona was called SPIMBENCH: A Scalable, Schema-Aware, Instance Matching Benchmark for the Semantic Publishing Domain and presented by Tzanina Saveta from FORTH.
Watch Tzanina Saveta presenting the benchmark for the Semantic Publishing domain.
In a previous 3-part blog series we touched upon the difficulties of executing the LDBC SNB Interactive (SNB) workload, while achieving good performance and scalability. What we didn't discuss is why these difficulties were unique to SNB, and what aspects of the way we perform workload execution are scientific contributions - novel solutions to previously unsolved problems. This post will highlight the differences between SNB and more traditional database benchmark workloads. Additionally, it will motivate why we chose to develop a new wo
Last 19th and 20th of March took place the sixth edition of the Technical User Community Meeting held in Barcelona. During these two days LDBC hosted more than 15 presentations from key members of the industry and research regarding graphs and RDF that we are going to share as independent blog posts during the following weeks.
Watch the first presentation with Venelin Kotsev presenting the details of the evolution of the SPB.
As discussed in previous posts, one of the features that makes Datagen more realistic is the fact that the activity volume of the simulated Persons is not uniform, but forms spikes. In this blog entry I want to explain more in depth how this is actually implemented inside of the generator.