POLITECNICO DI BARI - Catalogo dei prodotti della Ricerca

Do We Really Need to Drop Items with Missing Modalities in Multimodal Recommendation?

Generally, items with missing modalities are dropped in multimodal recommendation. However, with this work, we question this procedure, highlighting that it would further damage the pipeline of any multimodal recommender system. First, we show that the lack of (some) modalities is, in fact, a widely-diffused phenomenon in multimodal recommendation. Second, we propose a pipeline that imputes missing multimodal features in recommendation by leveraging traditional imputation strategies in machin...

Top-N Recommendation Algorithms: A Quest for the State-of-the-Art

Research on recommender systems algorithms, like other areas of applied machine learning, is largely dominated by efforts to improve the state-of-the-art, typically in terms of accuracy measures. Several recent research works however indicate that the reported improvements over the years sometimes "don't add up", and that methods that were published several years ago often outperform the latest models when evaluated independently. Different factors contribute to this phenomenon, including tha...

Leccacù

Archaeological research in Molossia: The Upper Acheron Valley Project. Preliminary results

Il progetto di ricerca, intitolato Ricerche archeologiche nell’alta valle dell’Acheronte, è stato avviato con l’obiettivo di condurre uno studio innovativo su questa regione della Molossia, adottando un approccio interdisciplinare e internazionale. La ricerca si basa su un accordo di collaborazione tra il Ministero della Cultura Ellenico e l’Università di Catania. Poiché quest’area non è mai stata adeguatamente indagata, il progetto mira a ricostruire le dinamiche storico- archeologiche c...