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However, under the circumstances at that time, I thought these things had little effect, because after we knocked them out, we began to gather in more quantities and launched attacks on positions from all directions. Judging from the form of attacks, they were quite organized and definitely beyond the reach of ordinary wild animals.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.张家和刘家因为小葱和泥鳅的事尴尬，偏偏黄瓜和锦鲤也对上眼了，只不过长辈们只顾那两个，没顾得上他们。周星河，记得去试镜，别错过了。当年。What makes a woman swipe right for Mr. Wrong? Sofía Vergara and Whitney Cummings star in this fresh, witty look at the science behind our romantic missteps.@