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Hoyoung Kim

11 accepted papers

2026

Federated Variational Preference Alignment with Gumbel-Softmax Prior for Personalized User Preferences

ICML 2026poster

Federated Learning (FL) offers a privacy-preserving pathway for aligning Large Language Models (LLMs); however, existing frameworks typically enforce a monolithic reward model, inevitably averaging out inherently conflicting user preferences (e.g., helpfulness vs. harmlessness). While Variational Pr…

Cited by 0SourceScholar
2025

Efficient Latent Semantic Clustering for Scaling Test-Time Computation of LLMs

EMNLP 2025

Scaling test-time computation, generating and analyzing multiple or sequential outputs for a single input, has become a promising strategy for improving the reliability and quality of large language models (LLMs), as evidenced by advances in uncertainty quantification and multi-step reasoning. A key

Cited by 0SourcePDFScholar
2024

Active Label Correction for Semantic Segmentation with Foundation Models

ICML 2024poster

Training and validating models for semantic segmentation require datasets with pixel-wise annotations, which are notoriously labor-intensive. Although useful priors such as foundation models or crowdsourced datasets are available, they are error-prone. We hence propose an effective framework of acti…

2024

Analysis and Validation of Stiffness and Payload of Nematode-Inspired Cable Routing Method for Cable Driven Redundant Manipulator

ICRA 2024poster

The cable-driven redundant manipulator (CDRM) has significant potential for applications in narrow and hazardous spaces. However, traditional CDRMs have limited stiffness and load capacity due to their cable routing method. To address these limitations, several scholars have proposed new mechanisms…

Cited by 0SourceScholar
2023

Active Learning for Semantic Segmentation with Multi-class Label Query

NeurIPS 2023poster

This paper proposes a new active learning method for semantic segmentation. The core of our method lies in a new annotation query design. It samples informative local image regions ($\textit{e.g.}$, superpixels), and for each of such regions, asks an oracle for a multi-hot vector indicating all clas…

2023

Adaptive Superpixel for Active Learning in Semantic Segmentation

ICCV 2023poster

Learning semantic segmentation requires pixel-wise annotations, which can be time-consuming and expensive. To reduce the annotation cost, we propose a superpixel-based active learning (AL) framework, which collects a dominant label per superpixel instead. To be specific, it consists of adaptive supe…

Cited by 12PDFcodeScholar
2022

Robust Deep Learning from Crowds with Belief Propagation

AISTATS 2022poster

Crowdsourcing systems enable us to collect large-scale dataset, but inherently suffer from noisy labels of low-paid workers. We address the inference and learning problems using such a crowdsourced dataset with noise. Due to the nature of sparsity in crowdsourcing, it is critical to exploit both pro…