6 months of hard coding and supervising by me are over and end with a huge success! After analyzing 80 GB of Google ngrams data Paul and Till put them to a neo4j graph data base in order to make predictions for fast scentence completion. Today was the award ceremony and the two students from …
Category: Webscience
The Web is the largest human information construct in history. The Web is transforming society. In order to understand what the Web is, engineer its future and ensure its social benefit we need a new interdisciplinary field that we call Web Science.
Related work of the Reading club on distributed graph data bases (Beehive, Scalable SPARQL Querying of Large RDF Graphs, memcached)
Today we finally had our reading club and discussed several papers from last week’s asignments. Before I give my usual summary I want to introduce our new infrastructure for the reading club. Go to: http://related-work.rene-pickhardt.de/ There you can find a question and answer system which we will use to discuss questions and answers of papers. …
From Graph (batch) processing towards a distributed graph data base
Yesterdays meeting of the reading club was quite nice. We all agreed that the papers where of good quality and we gained some nice insights. The only drawback of the papers was that it did not directly tell us how to achieve our goal for a real time distributed graph data base technology. In the …
Google Pregel vs Signal Collect for distributed Graph Processing – pros and cons
One of the reading club assignments was to read the paper about Google Pregel and Signal Collect, compare them and point out pros and cons of both approaches. So after I read both papers as well as Claudios overview on Pregel clones and took some notes here are my thoughts but first a short summary …
President Obama on Google+ talking to people
Not really news since it has happened like 20 days ago but here is a nice youtube summary of President Obamas public Hangout with the American folk. Kind of amazing that he actually did this. I am really looking forward to the time where these kind of events are not amazing anymore but rather standard …
Some thoughts on Google Mapeduce and Google Pregel after our discussions in the Reading Club
The first meeting of our reading club was quite a success. Everyone was well prepared and we discussed some issues about Google’s Map Reduce framework and I had the feeling that everyone now better understands what is going on there. I will now post a summary of what has been discussed and will also post some …
Reading club on Graph databases and distributed systems
Update: find a summary of last meeting and the current reading list for next week’s meeting here. Teaching classes is over for this term so for the next couple of weeks I want to spend a lot of time working on some research topics that are on my mind. My goal is to finnaly write …
Open Access and the Boycott of Elsevier! Let uns not stop here and take the digital revolution one step further!
Believing in open models and supporting ideas of copy left I am more than happy to see the current developement of scientists worldwide publicly making statements of not supporting Elsevier in the future which I will obviously join! You can find the page where scientists make thos statements under: http://thecostofknowledge.com/ And you find much more resources …
Algorithms exercise: Find mistakes in Wikipedia articles
Today I started an experiment I created an excercise for coursework in algorithms and data structures that is very unusuale and many people have been criticle if this was a good idea. The idea behind the exercise is that studens should read wikipedia articles to topics related to lectures and find mistakes or suggest things …
balanced binary search trees exercise for algorithms and data structures class
I created some exercises regarding binary search trees. This time there is no coding involved. My experience from teaching former classes is that many people have a hard time understanding why trees are usefull and what the dangers of these trees is. Therefor I have created some straight forward exercises that nevertheless involve some work …