2456机器学习简单essayshort
Row Split Instead of Issuer Split
题目
Each issuer contributes many dated observations. Why can a random row split overstate performance even when the target is defined separately on each date?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
题目
Each issuer contributes many dated observations. Why can a random row split overstate performance even when the target is defined separately on each date?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。