4419机器学习简单数值题short

Average Training Length Under Expansion 4

题目

An expanding walk-forward starts with 12 months of training and then advances by 6 months for each of 5 complete test folds. What is the average training-window length used across the 5 folds?

解题计时

0:00

提交作答时记录，用于后续平均用时统计。

你的答案

数值

months

只填写数值本身，单位 months 已固定在输入框右侧。