Taking community structure as measurement index for feature selection, a new feature selection measure approach based on modularity coefficient community structure is proposed.
利用网络社区模块结构作为特征选择的度量指标,给出了一种基于全局拓扑结构的特征选择性能评价方法。
The minimum sampling area of a major plant community in Meiziya Region was studied by using methods of species area curves and community coefficient area curves.
用种面积曲线和群落系数面积曲线的方法对宜昌梅子垭地区一种主要植物群落类型的最小面积进行了研究。
Equity of community health resources distribution was evaluated by Gini coefficient, which calculated with data of community health service organizations collected by health Bureau of Fujian in 2004.
利用2004年福建省卫生厅调查的社区卫生服务机构相关统计资料,通过计算基尼系数,评价福建省社区卫生资源分布的公平性。
The community coefficient area curve was directly perceived as the species area curve.
群落系统面积曲线和种面积曲线一样,比较直观。
The results showed that there were 18 species of natural enemies in the communities. The highest coefficient of community similarity was 95.12%, and the lowest coefficient was 73.86%.
结果表明,白蜡虫泌蜡期天敌群落共有捕食和寄生性天敌18种,各群落的优势种和物种组成变化较小,群落相似性程度较高,相似性系数最高达95.12%,最低为73.86%。
The results showed that there were 18 species of natural enemies in the communities. The highest coefficient of community similarity was 95.12%, and the lowest coefficient was 73.86%.
结果表明,白蜡虫泌蜡期天敌群落共有捕食和寄生性天敌18种,各群落的优势种和物种组成变化较小,群落相似性程度较高,相似性系数最高达95.12%,最低为73.86%。
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