Ji-Hoon Kim

activity

20182023

_{10 - x}

_{x}

(PO

_{4}

)

_{6}

O showing levitation at room temperature and atmospheric pressure and mechanism

47 citations · 93 across the 3 of their papers we have counts for

collaborators

3 papers

cond-mat.supr-con2023★ 47 cited

Superconductor Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O showing levitation at room temperature and atmospheric pressure and mechanism

Sukbae Lee, Jihoon Kim, Hyun-Tak Kim +3

A material called LK-99, a modified-lead apatite crystal structure with the composition Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O ( $0.9 < x < 1.1$ ), has been synthesized using the solid-state met…

cs.AR2022★ 37 cited

Accelerating Large-Scale Graph-based Nearest Neighbor Search on a Computational Storage Platform

Ji-Hoon Kim, Yeo-Reum Park, Jaeyoung Do +2

K-nearest neighbor search is one of the fundamental tasks in various applications and the hierarchical navigable small world (HNSW) has recently drawn attention in large-scale clou…

cs.LG2018★ 9 cited

CHOPT : Automated Hyperparameter Optimization Framework for Cloud-Based Machine Learning Platforms

Jinwoong Kim, Minkyu Kim, Heungseok Park +6

Many hyperparameter optimization (HyperOpt) methods assume restricted computing resources and mainly focus on enhancing performance. Here we propose a novel cloud-based HyperOpt (C…

Superconductor Pb10−x​Cux​(PO4​)6​O showing levitation at room temperature and atmospheric pressure and mechanism

Accelerating Large-Scale Graph-based Nearest Neighbor Search on a Computational Storage Platform

CHOPT : Automated Hyperparameter Optimization Framework for Cloud-Based Machine Learning Platforms

Superconductor Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O showing levitation at room temperature and atmospheric pressure and mechanism