[KongchangAI]
Unverified50% confidenceOpinionExact time

在实际项目中，80%的时间花费在数据准备上

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026

Sources

AI Large Language Model Learning Path: A Three-Step Practical Guide from Zero to Freelancing
bilibili大模型新手教程6/8/2026

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