许多关于数据挖掘和机器学习的研究都集中于分类的研究，然而现实世界涉及到的不仅仅是分类问题，比如对象的排序问题。

Many real world problems deal with ordering objects instead of classifying objects, though most research in machine learning and data mining has been focused on the latter.

youdao

许多关于数据挖掘和机器学习的研究都集中于分类的研究，然而现实世界涉及到的不仅仅是分类问题，比如对象的排序问题。

Many real world problems deal with ordering objects instead of classifying objects, though most research in machine learning and data mining has been focused on the latter.

youdao