Head Dimension (d)
Block Size (B)
Top-k Blocks
Context Length (L)
4K
8K
16K
32K
64K
128K
256K
512K
1M
Similarity Gap (Δμ)
Number of Blocks (M)
1024
Signal-to-Noise Ratio (SNR)
0.800
Single Block Misrank Probability (p)
0.2119
Expected Misranked Blocks (λ)
217.0
Success Probability P(Top-k)
0.00%
SNR = Δμ√(d/2B) | p = Φ(-SNR) | λ = Mp | P(Top-k) = Poisson_CDF(k-1, λ)