Unverified50% confidenceFactExact time
Walk Forward滚动前推验证以固定窗口历史数据训练模型，在紧接其后时间预测，然后将窗口向前滚动重复，能暴露不同市场状态下的稳定性问题
1
Sources
50%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
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