activity
20192026
most citedAggregating Knockoffs for False Discovery Rate Control with an Application to Gut Microbiome Data

5 citations · 6 across the 9 of their papers we have counts for

collaborators

11 papers

stat.ML2026

Knockoffs-based False Discovery Rate Control and Simplification for Deep Neural Networks

Wenyu Liao, Yiqing Shi, Fang Xie

The deep neural network is a widely used framework in machine learning that has been widely applied in various fields. However, deep neural networks often involve a large number of…

cs.LG2026

Revisiting Privacy Amplification by Subsampling in Selective Release DPSGD

Xiaobo Huang, Fang Xie

Machine learning's reliance on sensitive data necessitates privacy-preserving techniques like Differentially Private Stochastic Gradient Descent (DPSGD). However, DPSGD suffers fro…

cs.LG2026

When Do Fewer Coordinates Suffice in DP-SGD?

Huiqi Zhang, Fang Xie

Differentially private stochastic gradient descent (DP-SGD) injects noise into every updated coordinate, making the injected noise energy scale with the ambient parameter dimension…

cs.LG2025

Steps Adaptive Decay DPSGD: Enhancing Performance on Imbalanced Datasets with Differential Privacy with HAM10000

Xiaobo Huang, Fang Xie

When applying machine learning to medical image classification, data leakage is a critical issue. Previous methods, such as adding noise to gradients for differential privacy, work…

cs.LG2025

AdaDPIGU: Differentially Private SGD with Adaptive Clipping and Importance-Based Gradient Updates for Deep Neural Networks

Huiqi Zhang, Fang Xie

Differential privacy has been proven effective for stochastic gradient descent; however, existing methods often suffer from performance degradation in high-dimensional settings, as…

cs.CV2025

LH2Face: Loss function for Hard High-quality Face

Fan Xie, Yang Wang, Yikang Jiao +3

In current practical face authentication systems, most face recognition (FR) algorithms are based on cosine similarity with softmax classification. Despite its reliable classificat…

math.OC2025

Deriving the Gradients of Some Popular Optimal Transport Algorithms

Fangzhou Xie

In this note, I review entropy-regularized Monge-Kantorovich problem in Optimal Transport, and derive the gradients of several popular algorithms popular in Computational Optimal T…

cs.LG2022

Statistical Guarantees for Approximate Stationary Points of Shallow Neural Networks

Mahsa Taheri, Fang Xie, Johannes Lederer

Since statistical guarantees for neural networks are usually restricted to global optima of intricate objective functions, it is unclear whether these theories explain the performa…

cs.LG2020

Statistical Guarantees for Regularized Neural Networks

Mahsa Taheri, Fang Xie, Johannes Lederer

Neural networks have become standard tools in the analysis of data, but they lack comprehensive mathematical theories. For example, there are very few statistical guarantees for le…

stat.ME2020★ 1 cited

Tuning-free ridge estimators for high-dimensional generalized linear models

Shih-Ting Huang, Fang Xie, Johannes Lederer

Ridge estimators regularize the squared Euclidean lengths of parameters. Such estimators are mathematically and computationally attractive but involve tuning parameters that can be…

stat.ME2019★ 5 cited

Aggregating Knockoffs for False Discovery Rate Control with an Application to Gut Microbiome Data

Fang Xie, Johannes Lederer

Recent discoveries suggest that our gut microbiome plays an important role in our health and wellbeing. However, the gut microbiome data are intricate; for example, the microbial d…