Guide-yakabatana mibvunzo · Pakati Nhanho

Matthews Correlation Coefficient Quiz

Test confusion-matrix reasoning, MCC calculations and class-imbalance pitfalls with examples of spam filters and defect detection.

Nzira dzekutungamira dzinoenderanaMatthews Correlation Coefficient
Mubvunzo 1 ye 8

A filter labels all 1,000 messages legitimate when 990 truly are legitimate. Why is its 99% accuracy insufficient evidence of useful spam detection?