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In the above figure, when deleting the corresponding rules, the-D option is still used.-D INPUT means deleting the rules in the INPUT chain. The remaining options are the same as when we added the rules.-s means taking the corresponding source address as the matching condition, and-j ACCEPT means the corresponding action is accepted. Therefore, the above command means deleting the rules with the source address of 192.168. 1.146 and the action is ACCEPT in the INPUT chain.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.CW已续订《地球百子》第三季。1. Notwithstanding the provisions of Sections I and II of Chapter II, any ship overtaking any other ship shall give way to the overtaking ship.LINUX: Redhat uses the variable tcp_synack_retries to define the number of retransmissions, which defaults to 5, with a total timeout of 3 minutes.把这个先送走，我自有办法。临近子夜时分,X市公安局接到线报,翌日的国际刑警亚洲年会上,曲焕宇将有生命危险.此时,刚由缉毒大队调任市局安保处的陈亦名(张嘉译 饰),奉命返回局里仓促上任.期间,妻子和女儿先后遭到绑架.在重重危机中,为他提供帮助的是爱恋他的女警官司廖欣颐(孔琳 饰).在这紧要关头小丽突然到来,同行还有其男友蓝山(井冈山 饰)…… "死亡通告"的最后期限已越来越近,黑白两道,狼烟四起,敌方的频频领先终于暴露出警队内有卧底的事实,相关人证相继被杀!但初次"清鬼",阴影仍笼罩在警队内挥之不去,难道有更深一层的卧底?风口浪尖中,曲焕宇挺身而出,替陈亦名清选了不白之冤,并联手出击,穿云破雾!此时,敌方也使出了最后的杀手锏.黑白对决,当最后的卧底突现,陈亦名目瞪呆……