Search Results for author: Yiyuan She

Found 16 papers, 1 papers with code

Slow Kill for Big Data Learning

no code implementations2 May 2023 Yiyuan She, Jianhui Shen, Adrian Barbu

Big-data applications often involve a vast number of observations and features, creating new challenges for variable selection and parameter estimation.

Variable Selection

Supervised Multivariate Learning with Simultaneous Feature Auto-grouping and Dimension Reduction

no code implementations17 Dec 2021 Yiyuan She, Jiahui Shen, Chao Zhang

In this paper, new information-theoretical limits are presented to reveal the intrinsic cost of seeking for clusters, as well as the blessing from dimensionality in multivariate learning.

Dimensionality Reduction Variable Selection

Analysis of Generalized Bregman Surrogate Algorithms for Nonsmooth Nonconvex Statistical Learning

no code implementations16 Dec 2021 Yiyuan She, Zhifeng Wang, Jiuwu Jin

Modern statistical applications often involve minimizing an objective function that may be nonsmooth and/or nonconvex.

Sparse Learning

Gaining Outlier Resistance with Progressive Quantiles: Fast Algorithms and Theoretical Studies

no code implementations15 Dec 2021 Yiyuan She, Zhifeng Wang, Jiahui Shen

Outliers widely occur in big-data applications and may severely affect statistical estimation and inference.

Network Pruning via Annealing and Direct Sparsity Control

no code implementations11 Feb 2020 Yangzi Guo, Yiyuan She, Adrian Barbu

The attractive fact that the network size keeps dropping throughout the iterations makes it suitable for the pruning of any untrained or pre-trained network.

Network Pruning

Finding Deep Local Optima Using Network Pruning

no code implementations25 Sep 2019 Yangzi Guo, Yiyuan She, Ying Nian Wu, Adrian Barbu

However, in non-vision sparse datasets, especially with many irrelevant features where a standard neural network would overfit, this might not be the case and there might be many non-equivalent local optima.

Network Pruning

On Cross-validation for Sparse Reduced Rank Regression

no code implementations30 Dec 2018 Yiyuan She, Hoang Tran

In high-dimensional data analysis, regularization methods pursuing sparsity and/or low rank have received a lot of attention recently.

regression

Indirect Gaussian Graph Learning beyond Gaussianity

no code implementations8 Oct 2016 Yiyuan She, Shao Tang, Qiaoya Zhang

This paper studies how to capture dependency graph structures from real data which may not be Gaussian.

Graph Learning

Iterative proportional scaling revisited: a modern optimization perspective

no code implementations8 Oct 2016 Yiyuan She, Shao Tang

This paper revisits the classic iterative proportional scaling (IPS) from a modern optimization perspective.

feature selection

Joint Association Graph Screening and Decomposition for Large-scale Linear Dynamical Systems

no code implementations17 Nov 2014 Yiyuan She, Yuejia He, Shijie Li, Dapeng Wu

In particular, our method can pre-determine and remove unnecessary edges based on the joint graphical structure, referred to as JAG screening, and can decompose a large network into smaller subnetworks in a robust manner, referred to as JAG decomposition.

Group Regularized Estimation under Structural Hierarchy

no code implementations17 Nov 2014 Yiyuan She, Zhifeng Wang, He Jiang

We give the minimax lower bounds for strong and weak hierarchical variable selection and show that the proposed estimators enjoy sharp rate oracle inequalities.

Variable Selection

Learning Topology and Dynamics of Large Recurrent Neural Networks

no code implementations5 Oct 2014 Yiyuan She, Yuejia He, Dapeng Wu

Large-scale recurrent networks have drawn increasing attention recently because of their capabilities in modeling a large variety of real-world phenomena and physical mechanisms.

Selective Factor Extraction in High Dimensions

no code implementations25 Mar 2014 Yiyuan She

This paper studies simultaneous feature selection and extraction in supervised and unsupervised learning.

feature selection Model Selection +2

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