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Fabrizio Silvestri

2 papers indexed

arxivcs.LG2026-07-24

Efficient Recommendations via Graph Coarsening and Label Propagation

Alessandro Sbandi, Federico Siciliano, Fabrizio Silvestri

Graph-based recommendations are widely adopted in real-world industrial applications. However, graphs in these systems often reach a massive scale, posing notable scalability and efficiency challenges. This requires techniques that can effectively balance predictive quality with…

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arxivcs.CVcs.IR2026-07-15

Art Beyond Semantics: Sheaf-Informed Contrastive Learning for Multi-Relational Representations

Ludovica Schaerf, Antonio Purificato, Piera Riccio, Fabrizio Silvestri, Noa Garcia

Understanding a painting is never a single act. Art historians may analyze the same work through concepts of style, iconography, or historical context, dimensions that are not interchangeable, and each carries distinct semantic relationships between the visual and the textual. Vi…

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