Search Results for author: Jianxin Zhang

Found 5 papers, 2 papers with code

Label Embedding via Low-Coherence Matrices

no code implementations31 May 2023 Jianxin Zhang, Clayton Scott

Label embedding is a framework for multiclass classification problems where each label is represented by a distinct vector of some fixed dimension, and training involves matching model output to the vector representing the correct label.

Classification Dimensionality Reduction +2

Learning from Label Proportions by Learning with Label Noise

1 code implementation4 Mar 2022 Jianxin Zhang, Yutong Wang, Clayton Scott

Learning from label proportions (LLP) is a weakly supervised classification problem where data points are grouped into bags, and the label proportions within each bag are observed instead of the instance-level labels.

Weakly Supervised Classification

Learning from Label Proportions: A Mutual Contamination Framework

1 code implementation NeurIPS 2020 Clayton Scott, Jianxin Zhang

Learning from label proportions (LLP) is a weakly supervised setting for classification in which unlabeled training instances are grouped into bags, and each bag is annotated with the proportion of each class occurring in that bag.

Learning from Multiple Corrupted Sources, with Application to Learning from Label Proportions

no code implementations10 Oct 2019 Clayton Scott, Jianxin Zhang

We study binary classification in the setting where the learner is presented with multiple corrupted training samples, with possibly different sample sizes and degrees of corruption, and introduce an approach based on minimizing a weighted combination of corruption-corrected empirical risks.

Binary Classification

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