Unverified50% confidenceDecision RuleExact time
在训练模型前应先理解业务问题并明确目标，包括判断是回归还是分类问题及评估指标
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
《机器学习实战》第2章实战心得：端到端项目完整指南
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