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//Leadership InterviewState mode-Allows an object to automatically change its behavior when its internal state changes, and the object looks like it has changed its class. The specific structure diagram is as follows:ps.追更的童鞋们，免费的赞赏票和起点币还有没有啊~515红包榜倒计时了，我来拉个票，求加码和赞赏票，最后冲一把。杨长帆再一次失算了，抱着老婆在艳阳下肆意的奔跑，原来是这样一件美事。两人乖乖受教，待秦枫走后，才互相吐了下舌头，彼此惋惜不已。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.上季结尾的火灾爆炸事件彻底改变了51号消防站，不仅消防员沉浸在深深的悲痛中，而且其中一些人受伤严重，可能影响了他们的正常工作能力。Boden不得不下令让消防站的全体成员重新振作起来，返回工作岗位。Severide一周内屡次玩失踪，Casey开始追踪他的去向。与此同时，Newhouse带来一些出人意料的消息，它们与Mills的一个亲戚有关。Herrmann和Otis对酒吧的发展做出新的决定。