Here you can find scientific publications of Know-Center employees

Tackling Cold-Start Users in Recommender Systems with Indoor Positioning Systems

E Lacic, D Kowald, M Traub, G Luzhnica, J Simon, E Lex – ACM, 2015 – 9th ACM Conference on Recommender Systems

In this paper, we present work-in-progress on a recommender system based on Collaborative Filtering that exploits location information gathered by indoor positioning systems. This approach allows us to provide recommendations for "extreme" cold-start users with absolutely no item interaction data available, where methods based on Matrix Factorization would not work.…

An Energy Efficient Implementation of Differential Synchronization on Mobile Devices

J Simon, P Schmidt, V Pammer – Proceedings of 11th International Conference on Mobile and Ubiquitous Systems: Computing,…, 2015

Synchronisation algorithms are central components of collab- orative editing software. The energy efficiency for such algo- rithms becomes of interest to a wide community of mobile application developers. In this paper we explore the differen- tial synchronisation (diffsync) algorithm with respect to en- ergy consumption on mobile devices. We identify…

Where am I? Using Mobile Sensor Data to Predict a User’s Semantic Place with a Random Forest Algorithm

E Lex, O Pimas, J Simon, V Pammer – Proceedings of 9th International Conference on Mobile and Ubiquitous Systems: Comput…, 2012


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