105 citations · 270 across the 20 of their papers we have counts for
3 papers · 1 filter
Random Surfers on a Web Encyclopedia
Florian Geigl, Daniel Lamprecht, Rainer Hofmann-Wellenhof +3
The random surfer model is a frequently used model for simulating user navigation behavior on the Web. Various algorithms, such as PageRank, are based on the assumption that the mo…
Improving Reachability and Navigability in Recommender Systems
Daniel Lamprecht, Markus Strohmaier, Denis Helic
In this paper, we investigate recommender systems from a network perspective and investigate recommendation networks, where nodes are items (e.g., movies) and edges are constructed…
Activity Dynamics in Collaboration Networks
Simon Walk, Denis Helic, Florian Geigl +1
Many online collaboration networks struggle to gain user activity and become self-sustaining due to the ramp-up problem or dwindling activity within the system. Prominent examples…