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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.该剧以木偶剧的形式生动再现了十九世纪末刘铭传将军保卫台湾的历史事件，讲述了五个孩子机智勇敢，勇斗法、日侵略者的故事，弘扬了少年的正义感和深厚的爱国主义情操。　　这是一部关注人性和成长的剧集。来往于医院的人们形形色色，本剧把焦点对准了外科一年住院医们，他们在和患者共同面对生死抉择时深深地苦恼，在满腔热忱地工作时偶尔会受到伤害，但最终他们战胜了种种挫折，成长起来。同时，本剧刻画了与他们相关的师徒间、同事间的矛盾与爱情，讲述了具有人情味的“医生”们的故事。装在盒子里送来怎会这样新鲜。绿叶的前夫二水正在和老婆兰芝打的不可开交，二水不能容忍兰芝生不出孩子，要跟兰芝离婚，厉害的兰芝非但不同意离婚，反而把家里闹得鸡飞狗跳，二水娘和妹妹小凤忍气吞声。其实杨长帆也很烦，他不想这么早就有这样的成就。温馨大家庭的影像记录故事已经来到了第五季。伴随着三个家庭点滴的成长与变化，相信这部剧集还将走得更远。