REFLEX: Reinforcement Feedback Learning with Large Language Models for E-commerce Query Expansion.

@inproceedings{zhang-2026-reflex, author = {Yipeng Zhang and Bowen Liu and Xiaoshuang Zhang and Aritra Mandal and Canran Xu and Zhe Wu}, title = {{REFLEX: Reinforcement Feedback Learning with Large Language Models for E-commerce Query Expansion}}, booktitle = {{Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining, WSDM 2026, Boise, ID, USA, February 22-26, 2026}}, pages = {1288--1292}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3773966.3779381}, doi = {https://doi.org/10.1145/3773966.3779381} }