KG2ML:整合知识图和积极的无标签学习来识别与疾病相关的基因
Praveen Kumar1, Vincent T Metzger1, Swastika T Purushotham1
1University of New Mexico (UNM), School of Medicine, Department of Internal Medicine, Translational Informatics Division, Albuquerque, New Mexico, USA.
medRxiv : the preprint server for health sciences
|April 1, 2025
概括
这项研究介绍了KG2ML,这是一个使用正和未标记 (PU) 学习来发现与疾病相关的新基因的新管道. KG2ML有效地识别了隐藏的基因疾病关系,推动了生物医学研究.
科学领域:
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
- 机器学习 机器学习
背景情况:
- 生物医学知识图 (KG) 像DDKG一样,绘制出已知的基因疾病关系,但错过了尚未探索的关联.
- 识别与疾病相关的新基因至关重要,但与传统方法相比具有挑战性.
- 机器学习 (ML) 和KG为推断未知的关联提供了有希望的途径.
研究的目的:
- 开发一种高效的计算方法,用于预测新型疾病相关基因.
- 克服KG分析现有ML管道的局限性.
- 为了确定以前未知的基因疾病联系.
主要方法:
- 开发了KG2ML,这是一个新的ML管道,将积极和未标记 (PU) 学习 (PULSNAR) 与基于路径的特征提取集成在一起.
- 将KG2ML应用于12种疾病,从数据蒸厂知识图 (DDKG) 中推断出缺失的基因关联.
- 使用ProteinGraphML进行特征提取和XGBoost进行分类.
主要成果:
- 在12种疾病中,KG2ML确定了潜在的与疾病相关的基因,其中许多疾病在DDKG中缺乏先前的明确联系.
- 排名最高的假定基因得到了文献和TINX证据的支持.
- 整合PULSNAR输入基因改善了XGBoost分类性能,验证了PU学习的潜力.
结论:
- 通过KG2ML,PU学习有效地揭示了当前KG中缺少的疾病基因关联.
- KG2ML管道为生物医学研究提供了一个可扩展和可解释的框架.
- 这种方法增强了基因基因的实用性,并促进了新型基因疾病关系的发现.
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