arXiv Machine Learning By Darshan Sonagara, Qujiaheng Zhang, Ankit Singh, Alex Li

Retail Product Search: A Practical Approach at Target

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The paper describes a hybrid search system developed at Target that combines lexical and vector search to improve retail product search. It details data processing, embedding training, precision control, multi‑channel result fusion—specifically weighted interleaving—and performance optimizations for low latency. The system achieved measurable gains in click‑through rate, order conversion, and demand per visitor while reducing zero‑result searches.

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