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Adversarial Inter-Group Link Injection Degrades the Fairness of Graph Neural Networks


Sep 13, 2022
Hussain Hussain, Meng Cao, Sandipan Sikdar, Denis Helic, Elisabeth Lex, Markus Strohmaier, Roman Kern

* A shorter version of this work has been accepted by IEEE ICDM 2022 

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ReuseKNN: Neighborhood Reuse for Privacy-Aware Recommendations


Jun 23, 2022
Peter Müllner, Markus Schedl, Elisabeth Lex, Dominik Kowald

* 27 pages, 8 figures, 7 tables, under review 

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Position Paper on Simulating Privacy Dynamics in Recommender Systems


Sep 14, 2021
Peter Müllner, Elisabeth Lex, Dominik Kowald

* Accepted to the Workshop on Simulation Methods for Recommender Systems at ACM RecSys 2021 

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Analyzing Item Popularity Bias of Music Recommender Systems: Are Different Genders Equally Affected?


Aug 16, 2021
Oleg Lesota, Alessandro B. Melchiorre, Navid Rekabsaz, Stefan Brandl, Dominik Kowald, Elisabeth Lex, Markus Schedl

* RecSys 2021 - LBR 

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Predicting Music Relistening Behavior Using the ACT-R Framework


Aug 05, 2021
Markus Reiter-Haas, Emilia Parada-Cabaleiro, Markus Schedl, Elham Motamedi, Marko Tkalcic, Elisabeth Lex

* Accepted for publication in RecSys'21 late-breaking results 

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Structack: Structure-based Adversarial Attacks on Graph Neural Networks


Jul 28, 2021
Hussain Hussain, Tomislav Duricic, Elisabeth Lex, Denis Helic, Markus Strohmaier, Roman Kern

* Accepted as a full paper at ACM Hypertext on July 9, 2021 

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Support the Underground: Characteristics of Beyond-Mainstream Music Listeners


Feb 24, 2021
Dominik Kowald, Peter Muellner, Eva Zangerle, Christine Bauer, Markus Schedl, Elisabeth Lex

* Accepted for publication in EPJ Data Science - link to published version will be added 

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Robustness of Meta Matrix Factorization Against Strict Privacy Constraints


Jan 18, 2021
Peter Müllner, Dominik Kowald, Elisabeth Lex

* 13 pages, 4 figures, ECIR 2021 reproducibility track 

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


Oct 30, 2020
Hussain Hussain, Tomislav Duricic, Elisabeth Lex, Roman Kern, Denis Helic


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