Search Results for author: Hoang Anh Just

Found 5 papers, 5 papers with code

2D-Shapley: A Framework for Fragmented Data Valuation

1 code implementation18 Jun 2023 Zhihong Liu, Hoang Anh Just, Xiangyu Chang, Xi Chen, Ruoxi Jia

Data valuation -- quantifying the contribution of individual data sources to certain predictive behaviors of a model -- is of great importance to enhancing the transparency of machine learning and designing incentive systems for data sharing.

counterfactual Data Valuation +1

LAVA: Data Valuation without Pre-Specified Learning Algorithms

1 code implementation28 Apr 2023 Hoang Anh Just, Feiyang Kang, Jiachen T. Wang, Yi Zeng, Myeongseob Ko, Ming Jin, Ruoxi Jia

(1) We develop a proxy for the validation performance associated with a training set based on a non-conventional class-wise Wasserstein distance between training and validation sets.

Data Valuation

Narcissus: A Practical Clean-Label Backdoor Attack with Limited Information

2 code implementations11 Apr 2022 Yi Zeng, Minzhou Pan, Hoang Anh Just, Lingjuan Lyu, Meikang Qiu, Ruoxi Jia

With poisoning equal to or less than 0. 5% of the target-class data and 0. 05% of the training set, we can train a model to classify test examples from arbitrary classes into the target class when the examples are patched with a backdoor trigger.

Backdoor Attack Clean-label Backdoor Attack (0.024%) +1

Label-Only Model Inversion Attacks via Boundary Repulsion

1 code implementation CVPR 2022 Mostafa Kahla, Si Chen, Hoang Anh Just, Ruoxi Jia

In this paper, we introduce an algorithm, Boundary-Repelling Model Inversion (BREP-MI), to invert private training data using only the target model's predicted labels.

Face Recognition

ModelPred: A Framework for Predicting Trained Model from Training Data

1 code implementation24 Nov 2021 Yingyan Zeng, Jiachen T. Wang, Si Chen, Hoang Anh Just, Ran Jin, Ruoxi Jia

In this work, we propose ModelPred, a framework that helps to understand the impact of changes in training data on a trained model.

Data Valuation Memorization

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