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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.后来张家一心都在认儿子上，把红椒的婚事暂时搁下。位于洛杉矶市中心的赛西尔酒店素以全洛杉矶最致命的酒店闻名：既是连续杀人犯藏身之所，也有许多人在此离奇死去。大学生蓝可儿诡异失踪，更为这间酒店的暗黑历史添增最新篇章。2 月 10 日邀您入住赛西尔酒店，Netflix 独家。当魅力四射的高智商美女Freddy与脆弱且富有同情心的前儿童兵Baba相遇，欲望点燃了彼此心中的黑暗，将他们变成了一对危险的杀手搭档。与此同时，对犯罪心理的罪责观念有着巨大分歧的DS Lola Franks和DI Jackson Mendy被指派共同侦办此案。一场有关性吸引力与情感操纵的猫鼠游戏就此拉开。此次分封，项羽一家独大，严重削弱了众诸侯，其实也得罪了不少人。“换珠四宝”相爱相杀的搞笑故事However, there is actually another way to make the delegate execute the method, and that is: delegate variables (parameter lists)