Search Results for author: Michal Kompan

Found 6 papers, 2 papers with code

Auditing YouTube's Recommendation Algorithm for Misinformation Filter Bubbles

1 code implementation18 Oct 2022 Ivan Srba, Robert Moro, Matus Tomlein, Branislav Pecher, Jakub Simko, Elena Stefancova, Michal Kompan, Andrea Hrckova, Juraj Podrouzek, Adrian Gavornik, Maria Bielikova

We also observe a sudden decrease of misinformation filter bubble effect when misinformation debunking videos are watched after misinformation promoting videos, suggesting a strong contextuality of recommendations.

Misinformation

Pessimistic Off-Policy Optimization for Learning to Rank

no code implementations6 Jun 2022 Matej Cief, Branislav Kveton, Michal Kompan

Off-policy learning is a framework for optimizing policies without deploying them, using data collected by another policy.

Learning-To-Rank Recommendation Systems

An Audit of Misinformation Filter Bubbles on YouTube: Bubble Bursting and Recent Behavior Changes

1 code implementation25 Mar 2022 Matus Tomlein, Branislav Pecher, Jakub Simko, Ivan Srba, Robert Moro, Elena Stefancova, Michal Kompan, Andrea Hrckova, Juraj Podrouzek, Maria Bielikova

We present a study in which pre-programmed agents (acting as YouTube users) delve into misinformation filter bubbles by watching misinformation promoting content (for various topics).

Misinformation

Exploring Customer Price Preference and Product Profit Role in Recommender Systems

no code implementations13 Mar 2022 Michal Kompan, Peter Gaspar, Jakub Macina, Matus Cimerman, Maria Bielikova

We propose an adjustment of a predicted ranking for score-based recommender systems and explore the effect of the profit and customers' price preferences on two industry datasets from the fashion domain.

Recommendation Systems

The Cold-start Problem: Minimal Users' Activity Estimation

no code implementations31 May 2021 Juraj Visnovsky, Ondrej Kassak, Michal Kompan, Maria Bielikova

Cold-start problem, which arises upon the new users arrival, is one of the fundamental problems in today's recommender approaches.

Clustering

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