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以文本方式查看主题 - 中文XML论坛 - 专业的XML技术讨论区 (http://bbs.xml.org.cn/index.asp) -- 『 人工智能 :: 机器学习|数据挖掘|进化计算 』 (http://bbs.xml.org.cn/list.asp?boardid=62) ---- 各位懂数据挖掘的大侠们。。都过来帮帮忙啦。。。 (http://bbs.xml.org.cn/dispbbs.asp?boardid=62&rootid=&id=62181) |
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-- 作者：youli -- 发布时间：5/5/2008 12:23:00 PM -- 各位懂数据挖掘的大侠们。。都过来帮帮忙啦。。。 Assume that you are a sales manager for a telecommunication company and that your company has a mobile phone operation. Due to the introduction of a special subscription plan by your competitor, you have lost some customers to them within the first several days. In order to prevent further loss, your manager would like you to take a close look at the following data set sampled from those customers who responded to a survey. In the survey, the customers were asked if they would remain with the current subscription plan or switch to the competitor’s. Customer Average Average Total Decision a) Assume that k = 5, using the k-NN algorithm, what do you expect the decision of a customer, who has an average monthly payment of 293.26, an average duration of calls of 6.96 and a total calling time of 110.25, to be? b) Assume again that k = 5 and ignoring the "decision" of the customers. Using the k-NN algorithm, what do you expect the average duration of calls of a customer to be, given that his average monthly payment of 271.48 and a total calling time of 114.00? c) If you are free to choose the value of k, what will your choice be? Why? |
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-- 作者：zr_84 -- 发布时间：6/5/2008 11:44:00 PM -- 翻译一下啦！ |
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W 3 C h i n a ( since 2003 ) 旗 下 站 点 苏ICP备05006046号《全国人大常委会关于维护互联网安全的决定》《计算机信息网络国际联网安全保护管理办法》 |
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