DOS: Dual-Flow Orthogonal Semantic IDs for Recommendation in Meituan.

@inproceedings{yin-2026-dos, author = {Junwei Yin and Senjie Kou and Changhao Li and Shuli Wang and Yinqiu Huang and Xue Wei and Yinhua Zhu and Haitao Wang and Xingxing Wang}, editor = {Hakim Hacid and Yoelle Maarek and Francesco Bonchi and Ido Guy and Emine Yilmaz}, title = {{DOS: Dual-Flow Orthogonal Semantic IDs for Recommendation in Meituan}}, booktitle = {{Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026}}, pages = {8305--8308}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3774904.3792845}, doi = {https://doi.org/10.1145/3774904.3792845} }