김홍기 교수
Hong-Gee Kim
서울대학교 · 공학
연구실 소개
김홍기 교수의 연구실은 임상적 응용에 초점을 맞춘 인공지능 기반 의료 데이터 분석을 핵심으로 삼고 있습니다. 주로 종양학, 신경과학, 폐암 및 간암 등의 질환에서 유전자, 에피제놈, 단백질 발현 등 다양한 옹모믹스 데이터를 융합하여 진단 및 예후 예측 모델을 개발하고 있습니다. 특히, 환자 생존율 향상과 조기 진단을 목표로 하여, 전장 게놈 시퀀싱, 단세포 RNA 시퀀싱, 조직 영상 데이터를 기반으로 한 딥러닝 및 그래프 기반 학습 알고리즘을 활용한 정밀의료 기반 연구를 진행하고 있습니다. 또한, 학술 행사 정보의 표준화와 지능형 추론 기반 지식 탐색을 위한 온톨로지 기반 데이터 구조화도 함께 연구하고 있습니다.
연구 현황
연구 성과 추이
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
주요 논문
15Primary liver tissue cancer types are renowned to display a consistent increase in global disease burden and mortality, thus needing more effective diagnostics and treatments. Yet, integrative research efforts to identify cell-of-origin for these cancers by utilizing human specimen data were poorly established. To this end, we analyzed previously published whole-genome sequencing data for 384 tumor and progenitor tissues along with 423 publicly available normal tissue epigenomic features and sin
Early diagnosis of lung cancer to increase the survival rate, which is currently at a low range of mid-30%, remains a critical need. Despite this, multi-omics data have rarely been applied to non-small-cell lung cancer (NSCLC) diagnosis. We developed a multi-omics data-affinitive artificial intelligence algorithm based on the graph convolutional network that integrates mRNA expression, DNA methylation, and DNA sequencing data. This NSCLC prediction model achieved a 93.7% macro F1-score, indicati
<b>Background:</b> Cerebral amyloid beta (Aβ) is a hallmark of Alzheimer's disease (AD). Aβ can be detected <i>in vivo</i> with amyloid imaging or cerebrospinal fluid assessments. However, these technologies can be both expensive and invasive, and their accessibility is limited in many clinical settings. Hence the current study aims to identify multivariate cost-efficient markers for Aβ positivity among non-demented individuals using machine learning (ML) approaches. <b>Methods:</b> The relation
This study aimed to develop a deep learning (DL) model for predicting the recurrence risk of lung adenocarcinoma (LUAD) based on its histopathological features. Clinicopathological data and whole slide images from 164 LUAD cases were collected and used to train DL models with an ImageNet pre-trained efficientnet-b2 architecture, densenet201, and resnet152. The models were trained to classify each image patch into high-risk or low-risk groups, and the case-level result was determined by multiple
Scholarly events are important scientific communication channels. Our research goal is to satisfy scientists’ basic information needs by collecting, archiving and providing access to scholarly event information. Furthermore, we aim to satisfy users’ in-depth information needs by excavating scholarly meaningful information through reasoning about knowledge. A prerequisite to accomplishing this end is to define a description base for scholarly events to enable software agents to crawl and extract
Complex prompting techniques do not significantly enhance performance compared to simpler approaches. Dataset characteristics and model architecture have greater impact, suggesting simpler CoT methods may be more effective for clinical applications.
A growing number of tagging applications have begun to provide users the ability to socialise their own keywords. Tagging, which assigns a set of keywords to resources, has become a powerful way for organising, browsing, and publicly sharing personal collections of resources on the Web. It is called folksonomies. These systems on current social websites, however, have deficiencies in defining tag's meaning, and are often blocked to users in order to reuse, share, and exchange the tags across het
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