UPDATE: the paper got accepted at SOCIALCOM2012 and the source code and data sets are online especially the source code of the graphity server software is now online! UPDATE II: Download the paper (11 Pages from Social Com 2012 with Co Authors: Thomas Gottron, Jonas Kunze, Ansgar Scherp and Steffen Staab) and the slides I already said …
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.
3 exercises for Sorting problems (Quicksort , Mergesort) in Algorithms and data structures class
#1: Sorting huge files Sorting big files might not be as simple as just implementing an sort algorithm. As soon as the file does not fit in memory any more smarter implementations have to be applied. One way is to sort the file on the hard disk. We remark that not every algorithm is easily …
3 exercises for Sorting problems (Quicksort , Mergesort) in Algorithms and data structures class
#1: Sorting huge files Sorting big files might not be as simple as just implementing an sort algorithm. As soon as the file does not fit in memory any more smarter implementations have to be applied. One way is to sort the file on the hard disk. We remark that not every algorithm is easily …
My Blog guesses your name – Binary Search Exercise for Algorithms and data structures class
Binary Search http://en.wikipedia.org/wiki/Binary_search_algorithm is a very basic algorithm in computer science. Despite this fact it is also important to understand the fundamental principle behind it. Unfortunately the algorithm is tought so early and the algorithm is so simple that beginning students sometimes have a hard time to understand the abstract principle behind it. Also many …
11 lessons learnt after my first scientific paper was submitted
During the last month my blog was rather quite. I dicided that I was aiming to submit my first paper to a top conference with a deadline of november first. Well besides the fact that I almost forgot about the fact that I also have a private life – as well as my collegues helping …
neo4j based social news feed demo on wikipedia graph running
UPDATE: you can find an evaluation of the following blog post and idea on: http://www.rene-pickhardt.de/graphity-an-efficient-graph-model-for-retrieving-the-top-k-news-feeds-for-users-in-social-networks/ Hey everyone I can finally demonstrate the neo4j and gwt system that I have been blogging about over the last weeks here and here. But please find the demo under the following adress: http://gwt.metalcon.de/GWT-Modelling The code will be available soon! …
Data mining (text analysis) for linguists on Ulysses by James Joyce & Faust by Goethe
Over the weekend I met some students studying linguistics. Methods from Linguistics are very important for text retrieval and data mining. That is why in my oppinion Linguistics is also a very important part of web science. I am always concerned that most people doing web science actually are computer scientists and that much of …
Data structure for Social news streams on Graph data bases
UPDATE: look at http://www.rene-pickhardt.de/graphity for a more scientific survey and evaluation of this data structure. Ok you guys did not hear much from me most recently. I was on vaccation and then on summer school and I worked on my first scientific poster and on a talk which will hopefully ontribute to my PhD thesis. …
Google uses your Location to personalize search results
So today I’ll start my research about the 57 signals Google uses to personalize search results. To verify that Google uses your Location to tailor search results was an easy score. After the experiment we can be 100% certain that your location is one of the 57 signals. Well I guess there was no surprise …
Power of Google Homepage
Google has put information about the Youtube Symphony Orchestra on its homepage! Whatch yourself: After Thomas recommended reading a paper about trending topics in twitter where it was discovered that trends can be strongly influenced by external factors (media, news) I went right away to twitter looking for the #ysto. Of course I was not …