Data Mining

Archived; click post to view. Excerpt: 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 [...]

Continue reading about Get the full neo4j power by using the Core Java API for traversing your Graph data base instead of Cypher Query Language

Archived; click post to view. Excerpt: Due to the interesting results we found by creating Typology I am currently reading the related work about query prediction and auto completion of scentences. There is quite some interesting academic work available in this area of information retrieval. While reading these papers I realized that I am not [...]

Continue reading about Foundations of statistical natural language processing Review of chapter 1

René Pickhardt on May 22nd, 2012

Archived; click post to view. Excerpt: Yesterday I shared the good news about Till and Paul who have been awarded one of the top 5 projects at the German federal competition Young scientists. Today the good news continues. Together with more than 1000 competitors they did also submit the project to the Google Science Fair. [...]

Continue reading about Neo4j based Typology also awarded top 90 at Google Science fair.

Archived; click post to view. Excerpt: Two days ago I arrived in Erfurt in order to visit the federal competition young scientists (Jugend Forscht). I reported about the project typology by Till Speicher and Paul Wagner which I supervised over the last half year and which already won many awards. Saturday night they have already [...]

Continue reading about Typology using neo4j wins 2 awards at the German federal competition young scientists.

René Pickhardt on September 15th, 2011

Archived; click post to view. Excerpt: edit: the demo is finally online but on a different data set though: check out the demo and read about the new data set. An evaluation of graphity can be found here Besides reading papers I am currently implementing the infrastructure of my social news stream for the new [...]

Continue reading about Amazed by neo4j, gwt and my apache tomcat webserver

René Pickhardt on July 18th, 2011

Archived; click post to view. Excerpt: Over the last weeks I did some more work on neo4j. And I am ready to present some more results on the speed (In my use case neo4j outperformed MySQL by a factor of 377 ! That is more than two magnitudes). As known one part of my PhD thesis [...]

Continue reading about Time lines and news streams: Neo4j is 377 times faster than MySQL

René Pickhardt on May 6th, 2011

Archived; click post to view. Excerpt: Yesterday Julia Preusse – who started her PhD studies at WeST just a month before I did – had a talk about her research interests. She is interested in communities and the behaviour of users in discussions. I thought she was having some interesting ideas. That is why I [...]

Continue reading about Analysing user behaviour in internet communities

René Pickhardt on May 5th, 2011

Archived; click post to view. Excerpt: For my social news stream application I am heavily thinking about the right software to support my backend. After I designed a database model in MySQL I talked back to Jonas and he suggested to search for a better suiting technology. A little bit of research brought me to [...]

Continue reading about Neo4j Graph Database vs MySQL

René Pickhardt on April 25th, 2011

Archived; click post to view. Excerpt: It is two months now of reading papers since I started my PhD program. Enough time to think about possible research topics. I am more and more interested in search, social networks in general and social news streams in particular. It is obvious that it is becoming more and [...]

Continue reading about Social news streams – a possible PhD research topic?

Archived; click post to view. Excerpt: After Eli’s talk on TED and my recent article about the filter bubble I decided to dig a little deeper into Facebook’s EdgeRank algorithm, which decides what Updates appear in your news feed. I found some more scientific background on how EdgeRank really works. Even though EdgeRank was first [...]

Continue reading about Facebook User Search: Ever wondered how Facebook is more social than others?

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