Interactive BoR Explorer

This widget uses the exact hypergeometric formula for P_rand, the Poisson approximation, and computes λ, BoR_max, and R_q / N. Adjust the sliders to explore when BoR collapses.

Corpus Size N: 1000 Relevant per query R̄_q: 10 Retrieval Depth K: 5

λ = K · R_q / N: –

P_rand (exact): –

P_rand (Poisson approx): –

BoR_max (bits): –

R_q / N (%): –