activity
20192023
most citedGrow and Merge: A Unified Framework for Continuous Categories Discovery

14 citations · 15 across the 5 of their papers we have counts for

collaborators

5 papers

stat.ML2023

On semi-supervised estimation using exponential tilt mixture models

Ye Tian, Xinwei Zhang, Zhiqiang Tan

Consider a semi-supervised setting with a labeled dataset of binary responses and predictors and an unlabeled dataset with only the predictors. Logistic regression is equivalent to…

stat.ML2023

Persistently Trained, Diffusion-assisted Energy-based Models

Xinwei Zhang, Zhiqiang Tan, Zhijian Ou

Maximum likelihood (ML) learning for energy-based models (EBMs) is challenging, partly due to non-convergence of Markov chain Monte Carlo.Several variations of ML learning have bee…

cs.LG2022★ 14 cited

Grow and Merge: A Unified Framework for Continuous Categories Discovery

Xinwei Zhang, Jianwen Jiang, Yutong Feng +6

Although a number of studies are devoted to novel category discovery, most of them assume a static setting where both labeled and unlabeled data are given at once for finding new c…

math.ST2020★ 1 cited

On loss functions and regret bounds for multi-category classification

Zhiqiang Tan, Xinwei Zhang

We develop new approaches in multi-class settings for constructing proper scoring rules and hinge-like losses and establishing corresponding regret bounds with respect to the zero-…

stat.ML2019

Semi-supervised Logistic Learning Based on Exponential Tilt Mixture Models

Xinwei Zhang, Zhiqiang Tan

Consider semi-supervised learning for classification, where both labeled and unlabeled data are available for training. The goal is to exploit both datasets to achieve higher predi…