Search Results for author: Tomislav Duricic

Found 8 papers, 3 papers with code

Beyond-Accuracy: A Review on Diversity, Serendipity and Fairness in Recommender Systems Based on Graph Neural Networks

no code implementations3 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.

Collaborative Filtering Fairness +2

Uptrendz: API-Centric Real-time Recommendations in Multi-Domain Settings

1 code implementation3 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.

Recommendation Systems

Structack: Structure-based Adversarial Attacks on Graph Neural Networks

1 code implementation23 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.

On the Impact of Communities on Semi-supervised Classification Using Graph Neural Networks

1 code implementation30 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.

Classification General Classification +2

Empirical Comparison of Graph Embeddings for Trust-Based Collaborative Filtering

no code implementations30 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.

Collaborative Filtering Network Embedding

Should we Embed? A Study on the Online Performance of Utilizing Embeddings for Real-Time Job Recommendations

no code implementations15 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.

Exploiting weak ties in trust-based recommender systems using regular equivalence

no code implementations12 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.

Collaborative Filtering Recommendation Systems

Trust-Based Collaborative Filtering: Tackling the Cold Start Problem Using Regular Equivalence

no code implementations18 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.

Collaborative Filtering Recommendation Systems

Cannot find the paper you are looking for? You can Submit a new open access paper.