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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.该剧由《真爱如血》（True Blood）制片人Alan Ball打造。赵思萍抓着杨寿全的袖子进一步哭闹起来。THE K2描绘的是的热烈的爱着国家与同僚却被他们抛弃的警卫员，与连爱情都能作为复仇工具使用的有力大选候选人隐藏着的女儿之间的故事。这里还勾画了准第一夫人隐藏的欲望的故事。富二代唐伯虎（黄晓明饰）自幼习得一身出色武功，然而唐母（朱咪咪饰）为了完成其父遗愿，禁止伯虎用武功在外生事，并用计约束其苦读以考取功名。其时唐伯虎与“畏妻才子”文征明（周立波饰）、“无聊发明家”徐昌谷（任贤齐饰）、“好赌才子”祝枝山（陈百祥饰）三人交好，街坊称之“四大坏友”。祝枝山因贪图钱财，介绍唐伯虎入僧人无量（樊少皇饰）主持的及第斋求学，令伯虎不期然与女子倩倩（张静初饰）相遇，从此伯虎对倩倩魂牵梦绕，但倩倩身上，似乎隐藏着不能为外人道的秘密。与此同时，四大坏友在无尽的互相捉弄中偶然揭开了及第斋背后清风寺神秘的一角，这座寺院，并没有表面那么平和……一旁的夏说厉声道：你和韩信早有勾结……韩信听到此话淡淡一笑，端起一杯茶淡淡地饮用，笑而不语……夏说续道：否则你怎么知道韩信背水一战的用意，既然想要阻止为什么不早些来阻止。我们自然劝了田大哥。