1.1k citations · 1.7k across the 21 of their papers we have counts for
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math.OC2017★ 14 cited
Model-free Nonconvex Matrix Completion: Local Minima Analysis and Applications in Memory-efficient Kernel PCA
Ji Chen, Xiaodong Li
This work studies low-rank approximation of a positive semidefinite matrix from partial entries via nonconvex optimization. We characterized how well local-minimum based low-rank f…
math.OC2017★ 1 cited
When Do Birds of a Feather Flock Together? k-Means, Proximity, and Conic Programming
Xiaodong Li, Yang Li, Shuyang Ling +2
Given a set of data, one central goal is to group them into clusters based on some notion of similarity between the individual objects. One of the most popular and widely-used appr…