Unverified50% confidenceFactExact time
fit 阶段是一个两阶段分布式聚合：各节点计算本地数据分片的部分统计量（sum、count、sum of squares），然后在协调节点汇总得到全局的 μ 和 σ
1
Sources
50%
Confidence
Long-term
Relevance
7/17/2026
First Seen
Sources
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