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log_loss

qualia_core_db::solvers::learning::metrics::classification

Function log_loss 

Source 
pub fn log_loss(probs: &[f64], labels: &[bool]) -> Option<f64>
Expand description

Binary cross-entropy (log-loss): −(1/n)Σ[yᵢln pᵢ + (1−yᵢ)ln(1−pᵢ)], with p clamped away from 0/1 for numerical safety. None on a length mismatch.