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.
How is the click event represented by code?
4. Qingyuan Mountain
笑容黯了黯，很快就恢复了，如同灯光的明灭起伏。
君臣之中失去了主心骨不说。
3. Basic Handling of Activity Exception
First Certificate of "Newly Established" Wuxi Enterprise: Free; The second card starts with one household and has more than one card: 200 yuan/card/first year (including media); Foreign enterprise certificate: 200 yuan/sheet/first year (including media)
Think about whether we can expand and draw inferences from other examples.
Many people play with the Blood River, which is a pile of output, but the author's Blood River can resist all copies except Wuyang City. Temporary can replace the iron clothing under the book;
美国AMC电视台从HBO电视台手中偷得《广告狂人 Mad Men》并一炮而红拿奖拿到手软，又从HBO手中继续偷来《Breaking Bad》继续反响不俗，现在AMC又找来两位好莱坞明星詹姆斯·卡维泽(James Caviezel)和伊安·麦克莱恩(Ian McKellen)出演其新翻拍迷你剧《囚徒 The Prisoner》。
Visitor mode: Pay attention to the change of encapsulation object operation, support adding new operations to the class structure at runtime, and define new operations on these class instances without changing various types in the class hierarchy.
聪明人凭着头脑，就能很滋润的活下去。
If you don't want to use the subway card, Xiaobian will tell you how to buy a single subway ticket.
讲述一对夫妇和两个可爱女儿、同住的婆婆，与家人、同事、朋友的故事。
《我的白大褂·抗疫日记》是由深圳广电集团和深圳市卫生健康委员会联合出品，深圳卫视制作的全国首档医务人员亲身视角直击抗疫一线vlog。节目以医务人员的第一人称视角和独特的视频日记形式，直击抗疫一线的动人瞬间，讲述最美逆行者的故事。2月10日起每周一至周五19:35首播。
A4.1, 2.3 Anterior chamber, iris, pupil.
穿过爱与孤独，误解与风波，两人最终抵达拉萨。丁一舟拿出精心准备的戒指，在布达拉宫广场前向赖敏求婚。
