no code implementations • 28 Sep 2022 • Tianxi Cai, Dong Xia, Luwan Zhang, Doudou Zhou
Network analysis has been a powerful tool to unveil relationships and interactions among a large number of objects.
no code implementations • 2 Nov 2018 • Bo Liu, Luwan Zhang, Ji Liu
To make the problem computationally tractable, we propose a novel algorithm, termed as Optimal Denoising Dantzig Selector (ODDS), to approximately estimate the optimal denoising matrix.
no code implementations • 15 Oct 2018 • Luwan Zhang, Tianrun Cai
In this paper, we propose a novel method-- unsupervised ensemble learning via Ising model approximation (unElisa) that combines a pruning step with a predicting step.
1 code implementation • 6 Apr 2018 • Luwan Zhang, Katherine Liao, Issac Kohane, Tianxi Cai
To bridge this gap, in this paper we propose a novel spectral clustering method that optimally combines multiple data sources while leveraging the prior distance knowledge.
no code implementations • 17 Sep 2014 • Luwan Zhang, Grace Wahba, Ming Yuan
Although recovering an Euclidean distance matrix from noisy observations is a common problem in practice, how well this could be done remains largely unknown.