【单选题】若用BP神经网络对一组鸢尾属植物进行分类。假设有一个包含1500个样本的数据集,这些样本取自3种鸢尾属植物类别:山鸢尾,变色鸢尾和维吉尼亚鸢尾。数据集中的每一种植物需用4个变量来表示:萼片长度、萼片宽度、花瓣长度和花瓣宽度。那么BP神经网络的输入层和输出层的神经元个数分别是( )
【简答题】A man was driving at 70 miles in a 40-mile zone(区域), when a 36 came behind him. Right away the man started thinking of 37 to give. As the policeman came to him, he said, “Hi, officer, I guess you 38 m...
【简答题】____年,牛顿用三楞镜发现了太阳的七色光:红、橙、黄、绿、青、蓝紫。
【简答题】a)swiftly, b) happy with, c)no doubt, d) accepted as, e)staff, f)adopted, g)drive-in, h)introduced into, i)stand, j) established, 1. Can you see a fruit ________ by the road? 2. The commit...
【简答题】根据句意和首字母补全单词。 1. We want some v _____ to help paint the house. 2. The soldier had a terrible w _____in his belly. 3. The little dog w _____ its tail with pleasure. 4. You'd better h _____ if you want...
【单选题】()年,牛顿用三楞镜发现了太阳的七色光:红、橙、黄、绿、青、蓝、紫。