Author

Shantanu Aggarwal

2 papers indexed here

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Jul 2026

SMART: LLM-Augmented Hybrid Retrieval for Dynamic Product Ads

Dynamic Product Ads (DPA) require retrieving relevant items from multi-million product catalogs, balancing two competing objectives: retargeting (re-surfacing known interests) and prospecting (discovering new categories). While Large Language Models (LLMs) capture semantic intent better than traditional embedding model...

Cong-Fei Zhang, J. Ma, Xiao-Dong Liu et al. · arXiv.org · 0 citations

Preprint Aug 2026

SetMIR: Multi-Interest Retrieval as Set Prediction

Embedding-based retrieval is at the core of industrial recommender systems, but a single user embedding is often too limited to capture a user's diverse interests. Multi-interest retrieval addresses this by using multiple user embeddings, yet existing methods still suffer from two issues: interest collapse, where diffe...

Xiao-Dong Liu, Cong-Fei Zhang, Hsiang-Wei Chao et al. · 0 citations