Search Results for author: Naihua Xiu

Found 5 papers, 1 papers with code

0/1 Deep Neural Networks via Block Coordinate Descent

no code implementations19 Jun 2022 HUI ZHANG, Shenglong Zhou, Geoffrey Ye Li, Naihua Xiu

The step function is one of the simplest and most natural activation functions for deep neural networks (DNNs).

Dichotomous Image Segmentation Graph Matching

Support Vector Machine Classifier via $L_{0/1}$ Soft-Margin Loss

no code implementations16 Dec 2019 Huajun Wang, Yuan-Hai Shao, Shenglong Zhou, Ce Zhang, Naihua Xiu

To distinguish all of them, in this paper, we introduce a new model equipped with an $L_{0/1}$ soft-margin loss (dubbed as $L_{0/1}$-SVM) which well captures the nature of the binary classification.

Binary Classification

Single and Union Non-parallel Support Vector Machine Frameworks

no code implementations22 Oct 2019 Chun-Na Li, Yuan-Hai Shao, Huajun Wang, Yu-Ting Zhao, Ling-Wei Huang, Naihua Xiu, Nai-Yang Deng

The other type constructs all the hyperplanes simultaneously, and it solves one big optimization problem with the ascertained loss of each sample.

General Classification

Global and Quadratic Convergence of Newton Hard-Thresholding Pursuit

1 code implementation9 Jan 2019 Shenglong Zhou, Naihua Xiu, Hou-Duo Qi

Algorithms based on the hard thresholding principle have been well studied with sounding theoretical guarantees in the compressed sensing and more general sparsity-constrained optimization.

Optimization and Control

Sparse and Low-Rank Covariance Matrices Estimation

no code implementations17 Jul 2014 Shenglong Zhou, Naihua Xiu, Ziyan Luo, Lingchen Kong

This paper aims at achieving a simultaneously sparse and low-rank estimator from the semidefinite population covariance matrices.

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