Search Results for author: Gahee Kim

Found 4 papers, 1 papers with code

Hypergraph Neural Sheaf Diffusion: A Symmetric Simplicial Set Framework for Higher-Order Learning

no code implementations9 May 2025 Seongjin Choi, Gahee Kim, Yong-Geun Oh

HNSD operates via normalized degree zero sheaf Laplacians over symmetric simplicial sets, resolving orientation ambiguity and adjacency sparsity inherent to hypergraph learning.

Diffusion-based Episodes Augmentation for Offline Multi-Agent Reinforcement Learning

no code implementations23 Aug 2024 Jihwan Oh, Sungnyun Kim, Gahee Kim, Sunghwan Kim, Se-Young Yun

Offline multi-agent reinforcement learning (MARL) is increasingly recognized as crucial for effectively deploying RL algorithms in environments where real-time interaction is impractical, risky, or costly.

reinforcement-learning Reinforcement Learning +1

Non-backtracking Graph Neural Networks

1 code implementation11 Oct 2023 Seonghyun Park, Narae Ryu, Gahee Kim, Dongyeop Woo, Se-Young Yun, Sungsoo Ahn

In this work, we propose to resolve such a redundancy issue via the non-backtracking graph neural network (NBA-GNN) that updates a message without incorporating the message from the previously visited node.

Graph Neural Network Node Classification +1

Automated Solubility Analysis System and Method Using Computer Vision and Machine Learning

no code implementations7 Apr 2023 Gahee Kim, Minwoo Jeon, Hyun Do Choi, Jun Ki Cho, Youn-Suk Choi, Hyoseok Hwang

The proposed system is a combination of a device that uses a background image and a method for estimating the dissolution and particle presence by changing the background image.

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