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It is easy to see that OvR only needs to train N classifiers, while OvO needs to train N (N-1)/2 classifiers, so the storage overhead and test time overhead of OvO are usually larger than OvR. However, in training, each classifier of OVR uses all training samples, while each classifier of OVO only uses samples of two classes. Therefore, when there are many classes, the training time cost of OVO is usually smaller than that of OVR. As for the prediction performance, it depends on the specific data distribution, which is similar in most cases.郑氏听了一怔。　　她沉睡、吵闹，哭泣，始终不愿意完成最后的拼图。平民窟长大的彤露一直被人恶意中伤，尤其是她同母异父的妹妹润棱。纳克林因为初恋莉拉玉的背叛而开始游戏人间，认为女人皆有罪，不值得珍惜，莉拉玉和大商人麦肯离婚后想和纳克林复合，而莉拉玉的好友差萌就快要和纳克林商业联姻。彤露来到纳克林公司面试，纳克林被这个普通的女人给吸引了。大堂之内的谋臣武将全都有些震撼，楚汉战争汉军处于被动的情况下，韩信竟然提出了主动出击的建议。This four-part miniseries explores the changing landscape of social and class divisions inturn of the century England through the prism of three families: the intellectual and idealistic Schlegels, the wealthy Wilcoxes from the world of business, and the working class Basts.