The authors briefly review the theory of cost-sensitive learning, and the existing cost-sensitive learning algorithms.
简要地回顾了代价敏感学习的理论和现有的代价敏感学习算法。
People with sensitive skin have to watch which washing powder they use. Folk with sensitive stomachs have to be careful with their diet - as many are learning to their cost at this time of year.
敏感体质的人要注意自己的皮肤和肠胃，不要用洗衣粉和不洁饮食，很多人在这段时间里会更多的关注自我。
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