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你们先进去，先热热地洗个澡，把衣裳换了。For codes of the same length, theoretically, the further the coding distance between any two categories, the stronger the error correction capability. Therefore, when the code length is small, the theoretical optimal code can be calculated according to this principle. However, it is difficult to effectively determine the optimal code when the code length is slightly larger. In fact, this is an NP-hard problem. However, we usually do not need to obtain theoretical optimal codes, because non-optimal codes can often produce good enough classifiers in practice. On the other hand, it is not that the better the theoretical properties of coding, the better the classification performance, because the machine learning problem involves many factors, such as dismantling multiple classes into two "class subsets", and the difficulty of distinguishing the two class subsets formed by different dismantling methods is often different, that is, the difficulty of the two classification problems caused by them is different. Therefore, one theory has a good quality of error correction, but it leads to a difficult coding for the two-classification problem, which is worse than the other theory, but it leads to a simpler coding for the two-classification problem, and it is hard to say which is better or weaker in the final performance of the model.记得《疯城记》吗？Reece Shearsmith和Steve Pemberton再度携手归来，联合BBC推出这部暗黑喜剧《Inside NO.9》,关于片名，主创在一次采访中提到这完全是随机想到的一个名字，原本也不是9这个数字，后来觉得9更加顺口才采用了...该剧与《黑镜》的结构类似，一集一个故事，每集的故事都是独立的；看过《疯城记》的人应该都为二位的演技所折服，相信此次的6个新故事也不会令人失望...一场突如其来的鼠疫在德国科隆降临。一时之间，街道、下水道、家里、垃圾堆，到处都堆满了老鼠。一例例被感染的病人相继死去。一批批的人被强硬隔离起来，恐惧与慌乱随着空气一起蔓延开来，整个城市被死神的阴影笼罩着…… 在德国的科隆，发生了出人意料的事情，中世纪的瘟疫——“黑死病”再次侵袭了这座城市。事发于一个流浪汉猝死街头，令人难以置信地显现了黑死病地症候。综合医疗调查组的马丁·布鲁格医生和疾病控制专家克莱蒙·林德斯尔在这座古城发现了可怕的一幕。大堆的死鼠堵塞了下水道，是它们引起瘟疫德吗？为了避免市民恐慌，政府没有接受专家的意见。只是一些要人也开始变得奄奄一息时，事情才明朗起来……啪嗒。Connection conn = null;(12.06 update)