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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.Data collected during MDT meetings (such as clinicopathological data, etc.) should be fed back to MDT members for learning and improvement after analysis.清嘉庆道光年间，广东杰出的武术名家黄麒英之子黄飞鸿继承父业，他出众的武功和极富正义感的品德深得众人爱戴。当地洋人当道，输入鸦片，开设烟馆，坑害百姓。为伸张正义，黄飞鸿砸烟馆，惩恶人，向恶势力进行了不妥协的斗争。就要问我好不好，也该把这些东西搬进去再说话。憧憬着U-15日本国家足球队天才中锋(MF)的哥哥逢泽杰的逢泽驱，热爱足球的他因为幼时的事件而退缩想放弃足球，但就在这时兄弟两人发生了意外，那一天的早晨天气晴朗，好久没有两人共骑一部脚踏车的逢泽杰与逢泽驱，互相倾吐着各自对足球的想法。就在兄弟两人的心愈来愈靠近的时候，突然意外发生了！为了活下来弟弟逢泽驱接受了哥哥逢泽杰的心脏移植，在好友美岛奈奈的陪伴下回到了球场上，背负着哥哥的期待展开属于自己的足球之路…项羽低声道：亚父，我们可以……听着听着，范增时而欣喜时而忧虑，似乎心中一直做着激烈斗争。