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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.　　老苦瓜性格古怪孤癖，脾气暴躁，没有人愿意和他为伍，接近他。没有人知道他的真实姓名和过去。初时，老苦瓜尽办法摆脱这个“傻子”，却每每失败。大学毕业后，怀揣着成为一名演员的梦想的万国鹏孤身一人背井离乡，远赴大名鼎鼎的浙江横店，希望能够在这里打拼出一片属于自己的天地。然而，现实远比想象之中要残酷得多，在这个弱肉强食的世界里，空有一份对于梦想的热情还远远不够，在经历了无数挫折和失败后，万国鹏总算混出了点名堂，成为了一名专业的群众演员。在横店，万国鹏见到了无数和他极为相似的年轻人，他们中，有人最终获得了成功实现了梦想，有人误入歧途人生毁于一旦，但更多的，是经历了千辛万苦却放弃了梦想，回归了平淡的生活。一次偶然中，万国鹏结识了名为王婷的女孩，她仿佛一束光，照亮了万国鹏的前路。栏目通过版面以及动画片、动画电影和节目，丰富同学们和小朋友们的精神生活。对胡钧抱拳道：在下第三将严将军手下指挥使冯谦。该剧通过描写以马小跳为代表一群孩子的快乐生活以及他们和家长、老师、同学的好玩故事，映射当代儿童的生活现实与心理现实，深情呼唤张扬孩子的天性，舒展童心、童趣，探析成人世界与儿童世界之间的隔膜、误区，倡导理解、沟通，让孩子拥有健康、和谐、完美的童年。干啥，还想要回去？那可不成。