Search Results for author: Seongyoon Kim

Found 4 papers, 1 papers with code

FedFN: Feature Normalization for Alleviating Data Heterogeneity Problem in Federated Learning

no code implementations22 Nov 2023 Seongyoon Kim, Gihun Lee, Jaehoon Oh, Se-Young Yun

Additionally, we observe that as data heterogeneity increases, the gap between higher feature norms for observed classes, obtained from local models, and feature norms of unobserved classes widens, in contrast to the behavior of classifier weight norms.

Federated Learning

Model-Free Reconstruction of Capacity Degradation Trajectory of Lithium-Ion Batteries Using Early Cycle Data

no code implementations31 Mar 2023 Seongyoon Kim, Hangsoon Jung, Minho Lee, Yun Young Choi, Jung-Il Choi

The method involves predicting a few knots at specific retention levels using a deep learning-based model and interpolating them to reconstruct the trajectory.

Bayesian Optimization Trajectory Prediction

Mitigating Dataset Bias by Using Per-sample Gradient

1 code implementation31 May 2022 Sumyeong Ahn, Seongyoon Kim, Se-Young Yun

In this study, we propose a debiasing algorithm, called PGD (Per-sample Gradient-based Debiasing), that comprises three steps: (1) training a model on uniform batch sampling, (2) setting the importance of each sample in proportion to the norm of the sample gradient, and (3) training the model using importance-batch sampling, whose probability is obtained in step (2).

Attribute

Impedance-based Capacity Estimation for Lithium-Ion Batteries Using Generative Adversarial Network

no code implementations2 Jul 2021 Seongyoon Kim, Yun Young Choi, Jung-Il Choi

This paper proposes a fully unsupervised methodology for the reliable extraction of latent variables representing the characteristics of lithium-ion batteries (LIBs) from electrochemical impedance spectroscopy (EIS) data using information maximizing generative adversarial networks.

Capacity Estimation Generative Adversarial Network

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