Nacionalni portal odprte znanosti

In online discussion forums, users are more motivated to take part in discussions when observing other users’ participation — the effect of social influence among forum users. In this paper, we study how to utilize social influence for increasing user participation in online forums. To do so, we pro ...

Collective graphical models (CGMs) are a formalism for inference and learning about a population of independent and identically distributed individuals when only noisy aggregate data are available. We highlight a close connection between approximate MAP inference in CGMs and marginal inference in st ...

Memory-based collaborative filtering aims at predicting the utility of a certain item for a particular user based on the previous ratings from similar users and similar items. Previous studies in finding similar users and items are based on user-defined similarity metrics such as Pearson Correlation ...