no code implementations • 3 Oct 2023 • Tomislav Duricic, Dominik Kowald, Emanuel Lacic, Elisabeth Lex
This review paper focuses on addressing these dimensions in GNN-based recommender systems, going beyond the conventional accuracy-centric perspective.
1 code implementation • 3 Jan 2023 • Emanuel Lacic, Tomislav Duricic, Leon Fadljevic, Dieter Theiler, Dominik Kowald
In this work, we tackle the problem of adapting a real-time recommender system to multiple application domains, and their underlying data models and customization requirements.
1 code implementation • 23 Jul 2021 • Hussain Hussain, Tomislav Duricic, Elisabeth Lex, Denis Helic, Markus Strohmaier, Roman Kern
In this work, we study adversarial attacks that are uninformed, where an attacker only has access to the graph structure, but no information about node attributes.
1 code implementation • 30 Oct 2020 • Hussain Hussain, Tomislav Duricic, Elisabeth Lex, Roman Kern, Denis Helic
In this work, we systematically study the impact of community structure on the performance of GNNs in semi-supervised node classification on graphs.
no code implementations • 30 Mar 2020 • Tomislav Duricic, Hussain Hussain, Emanuel Lacic, Dominik Kowald, Denis Helic, Elisabeth Lex
In this work, we study the utility of graph embeddings to generate latent user representations for trust-based collaborative filtering.
no code implementations • 15 Jul 2019 • Markus Reiter-Haas, Emanuel Lacic, Tomislav Duricic, Valentin Slawicek, Elisabeth Lex
In this work, we present the findings of an online study, where we explore the impact of utilizing embeddings to recommend job postings under real-time constraints.
no code implementations • 12 Jun 2019 • Tomislav Duricic, Emanuel Lacic, Dominik Kowald, Elisabeth Lex
Such relationships typically form a very sparse trust network, which can be utilized to generate recommendations for users based on people they trust.
no code implementations • 18 Jul 2018 • Tomislav Duricic, Emanuel Lacic, Dominik Kowald, Elisabeth Lex
In our work, we explore the use of a measure from network science, i. e. regular equivalence, applied to a trust network to generate a similarity matrix that is used to select the k-nearest neighbors for recommending items.