Search Results for author: Chunfeng Cui

Found 4 papers, 2 papers with code

Pseudo MIMO (pMIMO): An Energy and Spectral Efficient MIMO-OFDM System

no code implementations9 Apr 2024 Sen Wang, Tianxiong Wang, Shulun Zhao, Zhen Feng, Guangyi Liu, Chunfeng Cui, Chih-Lin I, Jiangzhou Wang

The proposed system architecture and the dedicated signal processing methods enable the scheme to transmit a bigger number of parallel data streams than the number of receiving RF chains, achieving a spectral efficiency performance close to that of a fully digital (FD) MIMO system with the same number of antenna elements, each equipped with an RF chain.

A Momentum Accelerated Algorithm for ReLU-based Nonlinear Matrix Decomposition

1 code implementation4 Feb 2024 Qingsong Wang, Chunfeng Cui, Deren Han

Recently, there has been a growing interest in the exploration of Nonlinear Matrix Decomposition (NMD) due to its close ties with neural networks.

Optimization Models and Interpretations for Three Types of Adversarial Perturbations against Support Vector Machines

no code implementations7 Apr 2022 Wen Su, Qingna Li, Chunfeng Cui

In this paper, we investigate the optimization models and the interpretations for three types of adversarial perturbations against support vector machines, including sample-adversarial perturbations (sAP), class-universal adversarial perturbations (cuAP) as well as universal adversarial perturbations (uAP).

Active Subspace of Neural Networks: Structural Analysis and Universal Attacks

1 code implementation29 Oct 2019 Chunfeng Cui, Kaiqi Zhang, Talgat Daulbaev, Julia Gusak, Ivan Oseledets, Zheng Zhang

Secondly, we propose analyzing the vulnerability of a neural network using active subspace and finding an additive universal adversarial attack vector that can misclassify a dataset with a high probability.

Adversarial Attack Uncertainty Quantification

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