Wikidata Recommenders

At this week‘s OpenSym Conference we will present our evaluation of property recommender systems for Wikidata and generally, collaborative knowledge bases. The (admittedly way too long) title of our paper is: “An Empirical Evaluation of Property Recommender Systems for Wikidata and Collaborative Knowledge Bases“. Wikidata is a popular example for …

Can Twitter predict future music charts?

This week, I‘ll be presenting our paper on „Can Microblogs Predict Music Charts? An Analysis of the Relationship Between #Nowplaying Tweets and Music Charts“ at the 17th International Society for Music Information Retrieval Conference (ISMIR) in New York. In principle, we looked at to which extent Twitter is a useful …

Joint Seminar between Austria (FWF) and Taiwan (MOST)

Recently, I took part in the Joint Seminar “Culture- and Location-aware Music Recommendation and Retrieval”, which has been granted by FWF, the Austrian Science Funds and MOST, the Taiwanese Ministry of Science and Technology. Check out the program here: http://www.cp.jku.at/research/projects/AJS3780/

Real-time Sentiment Analysis for Twitter

Recently, Martin Illecker (one of my master students) finished his studies in information systems. In his master thesis he developed a sentiment analysis approach for tweets which is based on a combination of sentiment lexica and machine learning algorithms. In particular, we make use of Part-of-Speech tagging which delivers important …

WebScience Conference and Twitter Cybercrime

A couple of weeks ago, I was at the WebScience conference in Bloomington, Indiana. I had submitted a position paper about how to proceed with research on cybercrime and cyberwarfare in the context of Twitter to the Cybercrime / Cyberwarfare workshop which then got accepted. My paper is titled “Cybercrime …

Publication News

Yeeeha, our paper “Sorry, I was hacked”—A Classification of Compromised Twitter Accounts has been accepted at the ACM Symposium on Applied Computing 🙂 In particular, it has been accepted for the Social Network and Media Analysis (SONAMA) track. Our work features an analysis of Twitter whose Twitter accounts have been …

Die zweite überarbeitete Auflage ist da – jetzt mit NoSQL-Teil!

Die zweite überarbeitete Auflage ist da – jetzt mit NoSQL-Teil! Die zweite überarbeitete Auflage: MySQL 5.6 – Das umfassende Handbuch Nach einer intensiven Überarbeitungsphase ist es endlich soweit! Wir freuen uns, die zweite Auflage unseres Buches zur aktuellsten MySQL-Version 5.6 präsentieren zu können! Natürlich haben wir neben vielen kleinen Anpassungen …

Book 2nd Edition

We have been working hard on the second edition of our book “MySQL 5.6: Das umfassende Handbuch” and are about to finish it. The new edition is going to be available on July 28th, 2013 🙂   book@Galileo Computing book@Amazon  

News

Just added two new publications on the publications page: Eva Zangerle, Wolfgang Gassler, and Günther Specht. On the impact of text similarity functions on hashtag recommendations in microblogging environments. Social Network Analysis and Mining, 2013. to appear. Wolfgang Gassler, Eva Zangerle, and Günter Specht. Guided Curation of Semistructured Data in …

Welcome :)

I am a postdoctoral researcher at the Database and Information Systems research group at the Institute of Computer Science at the University of Innsbruck. This website is – for now – mainly used for presenting my research and publications.