Search Results for author: Myeongseob Ko

Found 3 papers, 2 papers with code

The Mirrored Influence Hypothesis: Efficient Data Influence Estimation by Harnessing Forward Passes

no code implementations14 Feb 2024 Myeongseob Ko, Feiyang Kang, Weiyan Shi, Ming Jin, Zhou Yu, Ruoxi Jia

Inspired by this, we introduce a new method for estimating the influence of training data, which requires calculating gradients for specific test samples, paired with a forward pass for each training point.

Memorization

Practical Membership Inference Attacks Against Large-Scale Multi-Modal Models: A Pilot Study

1 code implementation ICCV 2023 Myeongseob Ko, Ming Jin, Chenguang Wang, Ruoxi Jia

Furthermore, our enhanced attacks outperform the baseline across multiple models and datasets, with the weakly supervised attack demonstrating an average-case performance improvement of $17\%$ and being at least $7$X more effective at low false-positive rates.

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

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