no code implementations • 15 May 2024 • Ziqiang Cui, Haolun Wu, Bowei He, Ji Cheng, Chen Ma
Given a user sequence, our method selects certain positions and employs a context-aware diffusion model to generate alternative items for these positions with the guidance of context information.
1 code implementation • 25 Apr 2024 • Yiming Yao, Fei Liu, Ji Cheng, Qingfu Zhang
Many real-world optimization scenarios involve expensive evaluation with unknown and heterogeneous costs.