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This is because in the testing phase, ECOC coding has certain tolerance and correction ability for classifier errors. For example, the correct prediction code for the test example in fig. 3.5 (a) is (-1, +1, +1,-1, +1). Assuming that a classifier made an error during the prediction, for example, h made an error, resulting in the error code (-1,-1, +1,-1, +1), but the correct final classification result C3 can still be generated based on this code. Generally speaking, for the same learning task, the longer the ECOC code, the stronger the error correction ability.那里是孔雀王的发源地。你不杀他，他……他也说不下去了，那满头发辫的敌军怒吼着扑过来，嘴里怒喝，弯刀闪着蓝汪汪的光芒，惑人心神。According to statistics, SYN attack is the most common and easily used attack method among all hacker attacks. I believe many people still remember the attack on YAHOO website in 2000. At that time, hackers used simple and effective SYN attacks. Some network worms cooperated with SYN attacks to cause greater damage. This paper introduces the basic principle, tools and detection methods of SYN attack, and comprehensively discusses the prevention technology of SYN attack.韩国少女智秀是一家服装公司的设计师，这天，她在汉城街头为母亲购买生日礼物时，意外邂逅中国男子程家兴，二人发生误会。智秀没有父亲，一直与母亲相依为命，不料母亲也遭遇车祸身亡，智秀整理遗物时发现了几封旧信，原来一直杳无音信的父亲还活着，而且是中国人！智秀从韩国来到大连，决定一边打工一边寻父。《杜鹃山》总制片人严从华介绍，对于此次翻拍要本着尊重经典的原则，经过近八个月的前期筹备，既要丰富人物，又要最大程度忠实于京剧版，改编几易其稿，“京剧与电视剧毕竟是两种不同的载体，电视剧有京剧的‘脸谱化’，更多要从现实生活中塑造，人物要更加丰满，拍摄难度极高。”