René Pickhardt on July 17th, 2013

Archived; click post to view. Excerpt: Being at FOSDEM 20013 Peter from Neo4j asked my if I would like to get a neo4j shirt send to my home adress. We have to keep in mind that i just moved back to Koblenz from China. I did not only move to Koblenz but I moved to [...]

Continue reading about Drug junkie steals my neo4j t-shirt out of my physical mailbox

René Pickhardt on June 25th, 2013

I was visiting FOSDEM 2013 with Heinrich Hartmann and talking about the video of this talk is finally online and of course I would like to share this with the community: The slides can be found here.

Continue reading about Video of FOSDEM talk finally online

Download the slidedeck of our talk at fosdem 2013 including all the resources that we pointed to. Most important other links are: source code slides from the talk data sets proposal cypher benchmark was great talking here and again we are open source, open data and so on. So if you have suggestions or want [...]

Continue reading about Slides of Related work application presented in the Graphdevroom at FOSDEM

René Pickhardt on February 2nd, 2013

Archived; click post to view. Excerpt: Peter who is working for Neo4j is an industry partner of the which is a EU FP7 Project in the Big Data call. The goal of this project is to put out good methodologies for benchmarking linked open data and rdf stores as well as graph data bases. [...]

Continue reading about The start of the Linked Data benchmark council Eu FP7 Big Data pro

Archived; click post to view. Excerpt: Davy really nicely introduced the problem of looking at a snapshot of a data base. This problem obviously exists for any data base technology. You have a lot of timestamped records but running a query as if you fired it a couple of month ago is always a difficult [...]

Continue reading about Davy Suvee on FluxGraph – Towareds a time aware graph built on Datomic

René Pickhardt on February 2nd, 2013

Archived; click post to view. Excerpt: Frank Cellar ( introduces his ArangoDB which is basically a Document store (key, value) and uses a blueprint graph interface. Interestingly he is doing his demonstrations on the DBLP data set which is highly relevant for Heinrich and my related work project which we are introducing in our talk. [...]

Continue reading about Frank Cellar introduces ArangoDB

Archived; click post to view. Excerpt: As we know neo4j has a master slave replication with eventual consistency so there is not the typical ACID requirements. The way is ether wring the master which pushes to the slaves. But it is also possible to write to the slaves directly which is super save but much [...]

Continue reading about Michael Hunger talks about High Availability of Neo4j built on Paxos in the GraphDevroom @ FOSDEM

René Pickhardt on February 5th, 2012

Archived; click post to view. Excerpt: Since one of the talks got canceled the organisers of the Graph Devroom at Fosdem used the opportunity to make a public discussions with all the developers to talk about some future trends in graph processing. I really liked the idea but unfortunately the discussion wasn’t really kicking off [...]

Continue reading about Birds of a feather: Graph processing future trends in Graph Devroom

Archived; click post to view. Excerpt: Nils Grunwald works at the french startup Linkefluence. Their product is more or less social network analysis and graph processing. They crawl the web and blogs or get other social network data and provide solutions with statistics and insights for their customers.  In this scenario obviously big data is [...]

Continue reading about Nils Grunwald from Linkfluence talks at FOSDEM about Cascalog for graph processing

Archived; click post to view. Excerpt: Claudio Martella introduces Apache Giraph which according to him is a loose implementation of Google Pregel which was introduced  on SIGMOD in 2010. He points out that Map Reduce cannot be used to do graph processing. He then gave an example on how MapReduce can be used to to do page rank calculation. He points [...]

Continue reading about Claudio Martella talks @ FOSDEM about Apache Giraph: Distributed Graph Processing in the Cloud


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