1) bird abundance
鸟类密度
1.
Post-construction ecological monitoring surveys showed that bird abundance of the two flood control channels were lower than those of the habitats they replaced.
在耕地改变成防洪渠43号的过程中,鸟类密度由33。
2) density of dead birds
死鸟密度
1.
Average density of dead birds was 3±0.
分析认为,目前澳门地区死鸟平均密度可能被低估,但澳门半岛死鸟密度(61只/km2。
3) avian species richness
鸟类物种丰富度
4) cluster density
聚类密度
1.
One of the drawbacks of the SOFM is that the user must select the map size in advance,especially the time-consuming search for the best matching unit in large maps,A new Growing Tree-Structured Self-Organizing Maps(GTS-SOFM) is proposed and the specific algorithm to implement clustering is given,by using cluster density to Measure Cluster Quality.
针对传统Kohonen自组织特征映射(SOFM)神经网络模型结构需要预选指定的限制,特别在大的映射网络中寻找最佳匹配结点是很耗时的问题,我们采用一种新的动态增长树型自组织特征神经网络(GTS-SOFM),给出了实现聚类的具体算法,并且使用聚类密度来衡量聚类效果。
5) density clustering
密度聚类
1.
DCMIS:Density Clustering-based Application to Medical Image Segmentation;
基于密度聚类的医学图像分割DCMIS
2.
To solve the problem that support vector machine(SVM) can only classify the small samples set,a new algorithm which applied SVM to density clustering is proposed.
为了解决支持向量机的分类仅应用于较小样本集的问题,提出了一种密度聚类与支持向量机相结合的分类算法。
3.
Algorithms based on density clustering,which has the better effect to the spatial database,is one of the most important techniques in clustering analysis.
提出了一种带有矢量性的密度聚类算法,具有约束聚类方向,减少候选点的特点。
6) rodent abundance
鼠类密度
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条