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arXiv · 2508.13035

D-RDW: Diversity-Driven Random Walks for News Recommender Systems

Runze Li·Lucien Heitz·Oana Inel·Abraham Bernstein
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Abstract

This paper introduces Diversity-Driven RandomWalks (D-RDW), a lightweight algorithm and re-ranking technique that generates diverse news recommendations. D-RDW is a societal recommender, which combines the diversification capabilities of the traditional random walk algorithms with customizable target distributions of news article properties. In doing so, our model provides a transparent approach for editors to incorporate norms and values into the recommendation process. D-RDW shows enhanced performance across key diversity metrics that consider the articles' sentiment and political party mentions when compared to state-of-the-art neural models. Furthermore, D-RDW proves to be more computationally efficient than existing approaches.

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Runze Li, Lucien Heitz, Oana Inel, Abraham Bernstein. 2025-08-18. D-RDW: Diversity-Driven Random Walks for News Recommender Systems. https://doi.org/10.1145/3705328.3748016

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