图 书 馆
时间取样的邮件过滤Chronological Sampling for Email Filtering |
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| 课程网址: | http://videolectures.net/um05_silver_csef/ |
| 主讲教师: | Daniel Silver |
| 开课单位: | 阿卡迪亚大学 |
| 开课时间: | 2007-02-25 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | User models for email filtering should be developed from appropriate training and test sets. A k-fold cross-validation is commonly presented in the literature as a method of mixing old and new messages to produce these data sets. We show that this results in overly optimistic estimates of the email filter’s accuracy in classifying future messages because the test set has a higher probability of containing messages that are similar to those in the training set. We propose the k-fold chronological cross-validation method that preserves the chronology of the email messages in the test set. |
| 关 键 词: | 计算机科学; 时间取样; 邮件过滤 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-18：dingaq |
| 阅读次数: | 41 |