2 papers
cs.LG2025
Radial Neighborhood Smoothing Recommender System
Zerui Zhang, Yumou Qiu
Recommender systems inherently exhibit a low-rank structure in latent space. A key challenge is to define meaningful and measurable distances in the latent space to capture user-us…
stat.ME2025
High-dimensional Clustering and Signal Recovery under Block Signals
Wu Su, Yumou Qiu
This paper studies computationally efficient methods and their minimax optimality for high-dimensional clustering and signal recovery under block signal structures. We propose two…