论文中提到这段话 “Note that we preserves 10% validation data for each dataset, so all the experiments are conducted over 5 random train/val shifting selection along time and the results are averaged over the 5 runs. ”，请问是做交叉验证的意思吗？代码里是否没有体现这个细节呢，data_loader中的border1s和border2s都是给定范围的。请问具体的5 random train/val shifting selection是如何实现的呢？
论文中提到这段话 “Note that we preserves 10% validation data for each dataset, so all the experiments are conducted over 5 random train/val shifting selection along time and the results are averaged over the 5 runs. ”，请问是做交叉验证的意思吗？代码里是否没有体现这个细节呢，data_loader中的border1s和border2s都是给定范围的。请问具体的5 random train/val shifting selection是如何实现的呢？