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II. Application Value of BIM Technology in Construction57550f6f8bdc4603b53f676f4b7ffc2Oxygen-free copperOvO pairs the N classes in pairs to generate N (N-1)/2 binary classification tasks. For example, OvO will train a classifier to distinguish classes Ci and Cj. The classifier takes the Ci class sample in D as a positive example and the Cj class sample as a counterexample. In the testing phase, the new samples will be submitted to all classifiers at the same time, so we will get N (N-1)/2 classification results, and the final results can be generated by voting: that is, the category that is predicted most is taken as the final classification result. Figure 3.4 shows a schematic diagram.User1 exe!两只憨憨的、可爱的企鹅兄弟，生活在南极冰原上。他们有一座冰屋，面朝大海。他们一个高，一个矮。一个戴一顶绿帽子，一个戴一顶红帽子。他们热爱生活，热爱音乐，对生活充满好奇心。在孤独的冰原，每天都上演着让人捧腹的故事！背负着杀了自己母亲的罪名且被夺走一切的女人堂堂正正地对抗现实并查明真相找到幸福的故事。