Unverified50% confidenceFactExact time
Johnson-Lindenstrauss引理保证对于任意ε∈(0,1)，只要目标维度k≥O(log(n)/ε²)，就存在保持两两距离在(1±ε)倍之内的高维到k维映射
1
Sources
50%
Confidence
Long-term
Relevance
7/9/2026
First Seen
Sources
块稀疏特征器：揭开视觉模型神经几何的黑箱
hackernewshackernews7/7/2026
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