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Data Poisoning Attack: This involves inputting antagonistic training data into the classifier. The most common type of attack we observe is model skew. Attackers pollute training data in this way, making classifiers tilt to their preferences when classifying good data and bad data. The second attack we have observed in practice is feedback weaponization, which attempts to abuse the feedback mechanism to manipulate the system to misclassify good content as abuse (e.g. Competitor's content or part of retaliatory attacks).　　陈重、李良、王林是从同一间大学宿舍走出来的兄弟……邵、黄两人合作多年，为一项新产品的科技研发，各自都投入了大量的人力财力。邵国辉得知国内正在推进“一带一路”，决定回国发展。黄英俊不清楚邵国辉回国意图，以为携带机密潜逃，便想尽办法潜入邵家。黄英俊受到邵家人热情的款待，更加深了黄英俊对邵国辉的怀疑，于是计划夺走文件。在计划实施过程中，造成了叫人啼笑皆非的结局。1937年底，负责搜罗亚州国家珍贵文物的特务组织“东方史馆”的副馆长山田潜伏在太原，执行一项绝密任务：夺取宁家价值连城的景泰蓝双龙。Is to create a factory class to create instances of some classes that implement the same interface. First, look at the following diagram:颜值BG剧，越南也有超多帅哥的！ | 越南剧《这个偶像有点钱》