[KongchangAI]
Unverified50% confidenceFactExact time

对高基数类别特征进行独热编码会导致特征空间急剧膨胀,造成维度灾难,使欧氏距离在高维稀疏空间中区分能力急剧下降

1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen

Sources

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MCP
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