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As initiatively mentioned, the selection of plants is crucial. Some of them have better stability, and color resistance, such as persimmon, yam, betel nuts, turmeric, and so on. From personal experience, the fixity of gardenia is hardly impressive, and the color easy fade-off when washed. This is only as a reference. If possible, using at least a few very stable plants, what at the beginning or on topFor 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.他总是不由自主的去调戏盟友们，总会有人死心塌地的中招，然后被他伤透心。人海茫茫的喧嚣闹市，业余骗子张明天撞见老年痴呆郭大海，一场看似毫无悬念的骗局，却被郭大海时不时清醒的病情所打乱……一部没有出名与普通人没什么不同的半艺人生活的真实写照。剧中李素利(金素利饰)作为不知名的艺人生活着的暧昧的存在,通过恋爱真人秀节目获得了大众的关心。直到下午，张家小辈们才往郑家去拜年，吃过晚饭才回来。