Delivery platforms introduce unique challenges for recommender systems, as they must optimize a digital experience under physical and operational constraints. Items are tied to specific locations with delivery radii, real-time inventory, and preparation times - signals absent in other recommendation domains. More funda...
Marcel Kurovski, Paavo Camps, Raghav Saboo· Proceedings of the 20th ACM...· 0 citations
Multi-merchant e-commerce catalogs contain equivalent and related products under different merchant-scoped identifiers, fragmenting behavioral evidence across merchants. Expert-defined taxonomies, meanwhile, are often too coarse for fine-grained discovery. We investigate whether a single hierarchical Semantic ID (\sid{...
Steven Xu, Sanjyot Thete, Saathvik Dirisala et al.· 0 citations
This work proposes Mine and Refine, a two-stage contrastive training framework that establishes a robust global embedding space via label-aware supervised contrastive learning, and substantially improves retrieval and end-to-end relevance metrics.
Jiaqi Xi, Raghav Saboo, Luming Chen et al.· 0 citations
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