During the past two months I invested quite some of my spare free time to contribute to the organization of the open access event Rigor and Openness in 21st century science which will take place in the University of Oxford on April 11th and 12th. The Idea of the conference came up during Heinrich’s time …
Author: Rene
Building an Autocompletion on GWT screencast Part 2: Invoking The Remote Procedure Call
Hey everyone after posting my first screencast in this series reviewing the basic process for creating remote procedure calls in GWT we are now finally starting with the real tutorial for building an autocomplete service. This tutorial (again hosted on wikipedia) covers the basic user interface meaning how to integreate a SuggestBox instead of a …
Building an Autocompletion on GWT screencast Part 1: Getting Warm – Reviewing remote procedure calls
Quite a while ago I promised to create some screencasts on how to build a (personalized) Autocompletion in GWT. Even though the screencasts have been created for quite some time now I had to wait publishing them for various reasons. Finally it is now the time to go public with the first video. I do …
Slides of Related work application presented in the Graphdevroom at FOSDEM
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 …
The start of the Linked Data benchmark council Eu FP7 Big Data pro
Peter who is working for Neo4j is an industry partner of the http://www.ldbc.eu/ 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. In this context the council should …
Davy Suvee on FluxGraph – Towareds a time aware graph built on Datomic
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 challange. With FluxGraph a solution to …
Frank Cellar introduces ArangoDB
Frank Cellar (https://twitter.com/fceller) 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. ArangoDB has several APIs to interact …
Michael Hunger talks about High Availability of Neo4j built on Paxos in the GraphDevroom @ FOSDEM
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 slower since syncronization between slaves is …
Experiences on semantifying a Mediawiki for the biggest recource about Chinese rock music: rockinchina .com
During my trip in China I was visiting Beijing on two weekends and Maceau on another weekend. These trips have been mainly motivated to meet old friends. Especially the heads behind the biggest English resource of Chinese Rock music Rock in China who are Max-Leonhard von Schaper and the founder of the biggest Chinese Rock …
Get the full neo4j power by using the Core Java API for traversing your Graph data base instead of Cypher Query Language
As I said yesterday I have been busy over the last months producing content so here you go. For related work we are most likely to use neo4j as core data base. This makes sense since we are basically building some kind of a social network. Most queries that we need to answer while offering …