1)  adjacent pile foundation
近邻桥基
2)  nearest neighbor
近邻
1.
A parallel evolutionary algorithm for TSP,which is based on nearest neighbor initialization and improved Inver-over operator,is purposed.
设计了基于近邻点初始化和改进Inver-over(反序杂交)算子求解旅行商问题的并行演化算法。
3)  NNN
最近邻-次近邻
4)  K-nearest neighbor
K-最近邻
1.
To further understand the quantitative structure-activity relationship(QSAR)of fluorine-containing pesticide and improve the prediction precision of QSAR models,a novel nonlinear combinatorial forecast me-thod named Multi-KNN-SVR,multi-K-nearest neighbor based on support vector regression,was proposed.
为深入认识含氟农药生物活性与其结构之间的关系,建立了理想的QSAR模型,从化合物油水分配系数等7个分子结构描述符出发,基于支持向量回归(SVR)和MSE最小原则,经自动寻找最优核函数和非线性筛选描述符,构建了多个K-最近邻(KNN)预测子模型。
5)  K-nearest neighbor
K近邻
1.
Phosphorylation Site Prediction Based on k-Nearest Neighbor Algorithm and BLOSUM62 Matrix;
基于k近邻和BLOSUM62矩阵方法的磷酸化位点预测
2.
Facial expression recognition based on C-means and K-nearest neighbor algorithms;
基于C均值K近邻算法的面部表情识别
3.
A promising K-nearest neighbor nonparametric regression forecasting model based on typical historical database was developed.
基于所构建的历史数据库,通过数值试验,确定了状态向量、距离匹配原则,K近邻值等参量,构建了一种基于K近邻的非参数回归短时交通预测模型,实现了对路段行程速度的短时预测。
6)  k-near neighbor group
k-近邻群
1.
A novel combinatorial forecast method based on support vector machine regression and k-near neighbor group and its application in QSAR;
基于SVR和k-近邻群的组合预测在QSAR中的应用
参考词条
补充资料:半桥基
分子式:
CAS号:

性质:配体与其配位的两个金属原子距离不同,且形成的键角大小不等,此配体称为半桥基,如在羰基配位化合物中的半桥基μ2-CO,两个M—C键长a≠b,且两个M—C—O键角。α≠β(如图)。由于分子中其他配体的不平衡排布,造成金属原子上电荷分布不均匀,使配体排布不对称或由于分子中空间拥挤等原因产生半桥基。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。