unbalanced data set

• 不平衡数据

unbalanced data set的用法和样例：

例句

1. Experiment results show that the method can effectively enhance the classification performance on imbalanced data sets.
   实验结果表明，该方法可以有效提高不平衡数据的分类性能。
2. It appears to be vital to obtain the data of solvent-polymer systems accurately by establishing thermodynamic models.
   预测聚合物溶液体系的气液平衡数据是热力学模型的一个重要内容。