Search Results for author: Zhendong Chu

Found 8 papers, 2 papers with code

Improving a Named Entity Recognizer Trained on Noisy Data with a Few Clean Instances

no code implementations25 Oct 2023 Zhendong Chu, Ruiyi Zhang, Tong Yu, Rajiv Jain, Vlad I Morariu, Jiuxiang Gu, Ani Nenkova

To achieve state-of-the-art performance, one still needs to train NER models on large-scale, high-quality annotated data, an asset that is both costly and time-intensive to accumulate.

NER

Meta-Reinforcement Learning via Exploratory Task Clustering

no code implementations15 Feb 2023 Zhendong Chu, Hongning Wang

In this paper, we explore the structured heterogeneity among tasks via clustering to improve meta-RL.

Clustering Meta Reinforcement Learning +2

MiddleGAN: Generate Domain Agnostic Samples for Unsupervised Domain Adaptation

no code implementations6 Nov 2022 Ye Gao, Zhendong Chu, Hongning Wang, John Stankovic

We extend the theory of GAN to show that there exist optimal solutions for the parameters of the two discriminators and one generator in MiddleGAN, and empirically show that the samples generated by the MiddleGAN are similar to both samples from the source domain and samples from the target domain.

Unsupervised Domain Adaptation

Meta Policy Learning for Cold-Start Conversational Recommendation

1 code implementation24 May 2022 Zhendong Chu, Hongning Wang, Yun Xiao, Bo Long, Lingfei Wu

We propose to learn a meta policy and adapt it to new users with only a few trials of conversational recommendations.

Meta Reinforcement Learning Recommendation Systems +2

Improve Learning from Crowds via Generative Augmentation

no code implementations22 Jul 2021 Zhendong Chu, Hongning Wang

This creates a sparsity issue and limits the quality of machine learning models trained on such data.

BIG-bench Machine Learning Data Augmentation

Learning from Crowds by Modeling Common Confusions

2 code implementations24 Dec 2020 Zhendong Chu, Jing Ma, Hongning Wang

Crowdsourcing provides a practical way to obtain large amounts of labeled data at a low cost.

Image Classification

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