Dual-Horizon Interest Model for Unified Search and Recommendation

Wenhao Zhu; Yuxin Li; Shuo Wang; Hao Wang

AAAI 2026technical0 citations

Dual-Horizon Interest Model for Unified Search and Recommendation

Wenhao Zhu, Yuxin Li, Shuo Wang, Hao Wang

Abstract

Search and recommendation are pivotal for information access and are increasingly unified to exploit shared user-item interactions. Both tasks suffer from data sparsity, which joint modeling can mitigate by integrating behavioral data with or without explicit queries. However, existing unified frameworks rarely distinguish between users’ long- and short-term interests, despite their divergent temporal dynamics in search and recommendation. In this work, we propose a novel model, DHIM, which explicitly disentangles and integrates users

BibTeX

@inproceedings{aaai2026_dualhorizoninter,
  title = {Dual-Horizon Interest Model for Unified Search and Recommendation},
  author = {Wenhao Zhu and Yuxin Li and Shuo Wang and Hao Wang},
  booktitle = {AAAI 2026},
  year = {2026}
}