First Screencast Published in VSR Media Center

http://www.youtube.com/watch?v=vj4cNi7O4ws The demo video about usability-based A/B testing I created for the 2014 International Conference on Web Engineering is now featured in the media center of the VSR research group at Chemnitz University of Technology. The chair of VSR is Prof. Dr.-Ing. Martin Gaedke, who is the primary advisor of my PhD thesis. The video… Continue reading First Screencast Published in VSR Media Center

Usability-based Split Testing or How to infer web interface usability from user interactions

The continuous evaluation of an e-commerce company's web applications is crucial for ensuring customer satisfaction and loyalty. Such evaluations are usually performed as split tests, i.e., the comparison of two slightly different versions of the same webpage with respect to a target metric. Usually, metrics that stakeholders are interested in include completed checkout processes, submitted… Continue reading Usability-based Split Testing or How to infer web interface usability from user interactions

StreamMyRelevance! Predicting Search Result Relevance from Streams of Interactions

Guessing the relevance of delivered search results is one of the biggest issues for today's search engines. The particular problem is that it's difficult to obtain explicit statements from users about whether they found what they were searching for. Clicks are commonly used to guess relevance (using so-called "click models") but they are far from… Continue reading StreamMyRelevance! Predicting Search Result Relevance from Streams of Interactions

4 Submissions accepted at International Conference on Web Engineering (ICWE)

End of February, I submitted four contributions to the 14th International Conference on Web Engineering: two full papers, one demo and one poster. Of these four submissions, all were accepted and will be presented at the conference, which is to be held in Toulouse (see map below) from July 1 to July 4. In the… Continue reading 4 Submissions accepted at International Conference on Web Engineering (ICWE)

Offene Themen für Masterarbeiten: Benutzbarkeit von Web-Interfaces, Evaluierung und Metriken

An alle Masterstudenten in Leipzig und an der TU Chemnitz, die sich mit Human-Computer Interaction, Web-Interfaces und Usability befassen oder gerne befassen wollen: Aktuell habe ich in diesen Themengebieten zwei spannende Masterarbeiten zu vergeben! Vergleich eines Metrik- und Interaktions-basierten Ansatzes mit etablierten Methoden zur Bestimmung der Benutzbarkeit von Web-Interfaces Im Rahmen dieses Themas soll ein… Continue reading Offene Themen für Masterarbeiten: Benutzbarkeit von Web-Interfaces, Evaluierung und Metriken

2013 in Review: Search Interaction Optimization

On January 1, 2013 I started my PhD studies at Chemnitz University of Technology in cooperation with Unister GmbH, Leipzig. My project is about automatic methods for optimizing search engine results pages (e.g., http://www.google.com/#q=Hello%2C+World!) with respect to result quality and interface usability. The official working title is Search Interaction Optimization: A Design Thinking Approach. During my… Continue reading 2013 in Review: Search Interaction Optimization