However, the richness of dinoflagellate and blue-green algae increased significantly in warm seasons.

类结果显示各浮游植物群落组无明显的斑块布特征。

In order to overcome the weakness of clustering in the WEKA system，the paper makes secondary development under the WEKA platform to extend the clustering algorithms.

为WEKA系统在类方面的薄弱性，在WEKA的源环境下进行二次发，扩充类算法。

Gray clustering is a feasible method to assign these floristics to their suitable area, in which assorting vegetable and delineating the clustering objects by linear features are necessary.

在类区中利用各级线性地物类对象，并对种类繁多的植物简要类十重要。