Search Results for author: Zongbo Han

Found 17 papers, 10 papers with code

Selective Learning: Towards Robust Calibration with Dynamic Regularization

no code implementations13 Feb 2024 Zongbo Han, Yifeng Yang, Changqing Zhang, Linjun Zhang, Joey Tianyi Zhou, QinGhua Hu, Huaxiu Yao

The objective can be understood as seeking a model that fits the ground-truth labels by increasing the confidence while also maximizing the entropy of predicted probabilities by decreasing the confidence.

Skip \n: A Simple Method to Reduce Hallucination in Large Vision-Language Models

2 code implementations2 Feb 2024 Zongbo Han, Zechen Bai, Haiyang Mei, Qianli Xu, Changqing Zhang, Mike Zheng Shou

Recent advancements in large vision-language models (LVLMs) have demonstrated impressive capability in visual information understanding with human language.

Hallucination

ID-like Prompt Learning for Few-Shot Out-of-Distribution Detection

1 code implementation26 Nov 2023 Yichen Bai, Zongbo Han, Changqing Zhang, Bing Cao, Xiaoheng Jiang, QinGhua Hu

Out-of-distribution (OOD) detection methods often exploit auxiliary outliers to train model identifying OOD samples, especially discovering challenging outliers from auxiliary outliers dataset to improve OOD detection.

Few-Shot Learning Out-of-Distribution Detection +1

Semantic Equivariant Mixup

no code implementations12 Aug 2023 Zongbo Han, Tianchi Xie, Bingzhe Wu, QinGhua Hu, Changqing Zhang

Then a generic mixup regularization at the representation level is proposed, which can further regularize the model with the semantic information in mixed samples.

Data Augmentation

Reweighted Mixup for Subpopulation Shift

no code implementations9 Apr 2023 Zongbo Han, Zhipeng Liang, Fan Yang, Liu Liu, Lanqing Li, Yatao Bian, Peilin Zhao, QinGhua Hu, Bingzhe Wu, Changqing Zhang, Jianhua Yao

Subpopulation shift exists widely in many real-world applications, which refers to the training and test distributions that contain the same subpopulation groups but with different subpopulation proportions.

Fairness Generalization Bounds

Learning with Noisy Labels over Imbalanced Subpopulations

no code implementations16 Nov 2022 Mingcai Chen, Yu Zhao, Bing He, Zongbo Han, Bingzhe Wu, Jianhua Yao

Then, we refurbish the noisy labels using the estimated clean probabilities and the pseudo-labels from the model's predictions.

Learning with noisy labels

UMIX: Improving Importance Weighting for Subpopulation Shift via Uncertainty-Aware Mixup

1 code implementation19 Sep 2022 Zongbo Han, Zhipeng Liang, Fan Yang, Liu Liu, Lanqing Li, Yatao Bian, Peilin Zhao, Bingzhe Wu, Changqing Zhang, Jianhua Yao

Importance reweighting is a normal way to handle the subpopulation shift issue by imposing constant or adaptive sampling weights on each sample in the training dataset.

Generalization Bounds

Trusted Multi-View Classification with Dynamic Evidential Fusion

2 code implementations25 Apr 2022 Zongbo Han, Changqing Zhang, Huazhu Fu, Joey Tianyi Zhou

With this in mind, we propose a novel multi-view classification algorithm, termed trusted multi-view classification (TMC), providing a new paradigm for multi-view learning by dynamically integrating different views at an evidence level.

Classification MULTI-VIEW LEARNING

Uncertainty-Aware Multi-View Representation Learning

no code implementations15 Jan 2022 Yu Geng, Zongbo Han, Changqing Zhang, QinGhua Hu

Under the help of uncertainty, DUA-Nets weigh each view of individual sample according to data quality so that the high-quality samples (or views) can be fully exploited while the effects from the noisy samples (or views) will be alleviated.

MULTI-VIEW LEARNING Representation Learning

Multimodal Dynamics: Dynamical Fusion for Trustworthy Multimodal Classification

1 code implementation CVPR 2022 Zongbo Han, Fan Yang, Junzhou Huang, Changqing Zhang, Jianhua Yao

To the best of our knowledge, this is the first work to jointly model both feature and modality variation for different samples to provide trustworthy fusion in multi-modal classification.

Informativeness Medical Diagnosis +1

Trustworthy Long-Tailed Classification

2 code implementations CVPR 2022 Bolian Li, Zongbo Han, Haining Li, Huazhu Fu, Changqing Zhang

To address these issues, we propose a Trustworthy Long-tailed Classification (TLC) method to jointly conduct classification and uncertainty estimation to identify hard samples in a multi-expert framework.

Classification Long-tail Learning +1

Trustworthy Multimodal Regression with Mixture of Normal-inverse Gamma Distributions

1 code implementation NeurIPS 2021 Huan Ma, Zongbo Han, Changqing Zhang, Huazhu Fu, Joey Tianyi Zhou, QinGhua Hu

Multimodal regression is a fundamental task, which integrates the information from different sources to improve the performance of follow-up applications.

Multimodal Sentiment Analysis regression

Trusted Multi-View Classification

5 code implementations ICLR 2021 Zongbo Han, Changqing Zhang, Huazhu Fu, Joey Tianyi Zhou

To this end, we propose a novel multi-view classification method, termed trusted multi-view classification, which provides a new paradigm for multi-view learning by dynamically integrating different views at an evidence level.

Classification General Classification +1

Multi-View Disentangled Representation

no code implementations1 Jan 2021 Zongbo Han, Changqing Zhang, Huazhu Fu, QinGhua Hu, Joey Tianyi Zhou

Learning effective representations for data with multiple views is crucial in machine learning and pattern recognition.

Disentanglement

Deep Partial Multi-View Learning

no code implementations12 Nov 2020 Changqing Zhang, Yajie Cui, Zongbo Han, Joey Tianyi Zhou, Huazhu Fu, QinGhua Hu

Although multi-view learning has made signifificant progress over the past few decades, it is still challenging due to the diffificulty in modeling complex correlations among different views, especially under the context of view missing.

Imputation MULTI-VIEW LEARNING +1

CPM-Nets: Cross Partial Multi-View Networks

1 code implementation NeurIPS 2019 Changqing Zhang, Zongbo Han, Yajie Cui, Huazhu Fu, Joey Tianyi Zhou, QinGhua Hu

Despite multi-view learning progressed fast in past decades, it is still challenging due to the difficulty in modeling complex correlation among different views, especially under the context of view missing.

MULTI-VIEW LEARNING

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