通过使用二进制群优化 (BACO) 特性选择方法选择有效描述物的药物分子毒性的预测
Yuanyuan Dan1, Junhao Ruan1, Zhenghua Zhu1
1School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Molecules (Basel, Switzerland)
|April 26, 2025
概括
本研究介绍了一种二进制殖民地优化 (BACO) 功能选择算法,以改进在的定量结构-活性关系 (QSAR) 模型来预测药物毒性. 巴科有效地处理歪曲的数据和高维特征,提高药物开发的安全性和效率.
科学领域:
- 计算化学计算化学
- 化学信息学 化学信息学
- 毒理学 毒理学 毒理学
背景情况:
- 在的定量结构-活性关系 (QSAR) 模型对于预测药物毒性至关重要,有助于安全的药物开发.
- 在QSAR中的机器学习受到不平衡的数据集和高维特征空间的挑战.
- 现有的方法难以同时解决数据不平衡和特征维度问题.
研究的目的:
- 开发一种新的特征选择算法,二进制殖民地优化 (BACO),用于QSAR建模.
- 提高in silico毒性预测模型的准确性和可靠性.
- 解决QSAR分析中数据分布偏差和高维特征的挑战.
主要方法:
- 提出了一种二进制群优化 (BACO) 算法,用于在QSAR中进行特征选择.
- 采用多重验证方法,优化基于类失衡指标 (F-测量,G-平均值,MCC) 的特征子集.
- 利用高频选择特征来训练支持矢量机 (SVM) 模型进行结构活动关系 (SAR) 预测.
主要成果:
- 在12个Tox21挑战数据集中,BACO显著超过了传统特征选择方法.
- 该方法在大多数数据集中只使用几到几十个描述符实现了最佳性能.
- 在处理不平衡数据和减少特征维度方面表现出有效性.
结论:
- 拟议的BACO算法是增强基于QSAR的毒性预测的强大工具.
- 巴科为化学信息学提供了一种有价值的方法,提高了药物开发的效率和准确性.
- 该方法显示了指导开发更安全,更有效的药物分子的巨大潜力.
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