no code implementations • 1 Jun 2023 • Shiwei Zeng, Jie Shen
The concept class of low-degree polynomial threshold functions (PTFs) plays a fundamental role in machine learning.
no code implementations • 28 May 2022 • Shiwei Zeng, Jie Shen
Robust mean estimation is one of the most important problems in statistics: given a set of samples in $\mathbb{R}^d$ where an $\alpha$ fraction are drawn from some distribution $D$ and the rest are adversarially corrupted, we aim to estimate the mean of $D$.
no code implementations • 13 Jun 2021 • Shiwei Zeng, Jie Shen
We study the problem of crowdsourced PAC learning of threshold functions.
no code implementations • 2 Nov 2020 • Shiwei Zeng, Jie Shen
We study crowdsourced PAC learning of threshold functions, where the labels are gathered from a pool of annotators some of whom may behave adversarially.