Search Results for author: Yiwen Kou

Found 5 papers, 1 papers with code

Matching the Statistical Query Lower Bound for k-sparse Parity Problems with Stochastic Gradient Descent

no code implementations18 Apr 2024 Yiwen Kou, Zixiang Chen, Quanquan Gu, Sham M. Kakade

We then demonstrate how a trained neural network with SGD can effectively approximate this good network, solving the $k$-parity problem with small statistical errors.

Guided Discrete Diffusion for Electronic Health Record Generation

no code implementations18 Apr 2024 Zixiang Chen, Jun Han, YongQian Li, Yiwen Kou, Eran Halperin, Robert E. Tillman, Quanquan Gu

Electronic health records (EHRs) are a pivotal data source that enables numerous applications in computational medicine, e. g., disease progression prediction, clinical trial design, and health economics and outcomes research.

Data Augmentation

Fast Sampling via De-randomization for Discrete Diffusion Models

no code implementations14 Dec 2023 Zixiang Chen, Huizhuo Yuan, YongQian Li, Yiwen Kou, Junkai Zhang, Quanquan Gu

Despite its success in continuous spaces, discrete diffusion models, which apply to domains such as texts and natural languages, remain under-studied and often suffer from slow generation speed.

Image Generation Machine Translation +1

Benign Overfitting for Two-layer ReLU Convolutional Neural Networks

1 code implementation7 Mar 2023 Yiwen Kou, Zixiang Chen, Yuanzhou Chen, Quanquan Gu

We show that, under mild conditions, the neural network trained by gradient descent can achieve near-zero training loss and Bayes optimal test risk.

Vocal Bursts Valence Prediction

Certified Adversarial Robustness Under the Bounded Support Set

no code implementations29 Sep 2021 Yiwen Kou, Qinyuan Zheng, Yisen Wang

In this paper, we introduce a framework that is able to deal with robustness properties of arbitrary smoothing measures including those with bounded support set by using Wasserstein distance as well as total variation distance.

Adversarial Robustness

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